--- /dev/null
+gzip was written by Jean-loup Gailly <jloup@gzip.org>,
+and Mark Adler for the decompression code.
--- /dev/null
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+\f
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+\f
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
+ 1 and 2 above on a medium customarily used for software interchange; or,
+
+ b) Accompany it with a written offer, valid for at least three
+ years, to give any third party, for a charge no more than your
+ cost of physically performing source distribution, a complete
+ machine-readable copy of the corresponding source code, to be
+ distributed under the terms of Sections 1 and 2 above on a medium
+ customarily used for software interchange; or,
+
+ c) Accompany it with the information you received as to the offer
+ to distribute corresponding source code. (This alternative is
+ allowed only for noncommercial distribution and only if you
+ received the program in object code or executable form with such
+ an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it. For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable. However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+\f
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+ 5. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+\f
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+\f
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
--- /dev/null
+2001-11-03 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h, gzip.texi, configure.in (AM_INIT_AUTOMAKE):
+ Revision 1.3.2, dated today.
+
+ * Makefile.am (LN_S): New macro.
+ (install-exec-hook): Depend on remove-installed-links.
+ Affect $(DESTDIR)$(bindir), not just $(bindir).
+ (uninstall-local, remove-installed-links): New rules.
+ * README-alpha: This release built with autoconf 2.52f.
+ * TODO: Add rsync patch.
+ * configure.in: Add AC_PREREQ(2.52) and AC_PROG_LN_S.
+ * gzip.1, zmore.1: Fix troff glitches, using Eric S. Raymond's
+ suggestions for inspiration.
+ * m4/shell.m4(AC_PROG_SHELL): Add commentary and cleanup.
+
+ * gzip.texi, gzip.1: Add pointers to RFCs 1951 and 1952.
+ Mention that gzip --list reports file sizes modulo 2^32.
+ * gzip.1: Remove incorrect report of 2 GB bug. Add copyright notice.
+
+2001-09-30 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h, gzip.texi, configure.in (AM_INIT_AUTOMAKE):
+ Revision 1.3.1, dated today.
+
+ * INSTALL, getopt.c, getopt.h, getopt1.c, install-sh, missing,
+ mkinstalldirs, texinfo.tex:
+ Sync with latest version in other packages.
+
+ * acinclude.m4, config.guess, config.sub: Remove.
+ * depcomp, rpmatch.c, yesno.c: New files.
+
+ * ChangeLog, README, NEWS, TODO, configure.in, zgrep.in, zmore.in:
+ Add copyright notice.
+
+ * Makefile.am (ACLOCAL_AMFLAGS): New macro.
+ (ACINCLUDE_INPUTS): Remove all but shell.m4.
+ ($(srcdir)/acinclude.m4): Remove.
+ (gzip_sources): Add yesno.c.
+
+ * TODO: Add i18n.
+
+ * configure.in (AC_CANONICAL_HOST): Remove.
+ (AC_AIX, AC_MINIX): Move earlier.
+ (AC_REPLACE_FUNCS): Add rpmatch.
+
+ * gzip.c (main):
+ Report error if -b operand is not a nonnegative integer.
+ (treat_file): Don't assume tab width is 8, or that characters are
+ one column wide.
+ (make_ofname): Use WARN to warn about unchanged files.
+ (get_method): "get newer version of gzip" -> "not supported"
+ (check_ofname): Use yesno instead of checking for 'y' ourselves.
+ (treat_file): Do not assume link count fits in int.
+
+ * gzip.h (yesno): New decl.
+
+ * util.c (display_ratio): Use floating point to compute ratio:
+ this avoids problems with integer overflow.
+
+ * zgrep.in: Add support for --, -H, -h, -L, -l, -C, -d, -m and
+ their long equivalents. Warn that -r and -d are not supported.
+
+ * zmore.in:
+ Check that file is readable before attempting to decompress it.
+
+2000-10-09 Paul Eggert <eggert@twinsun.com>
+
+ * configure.in (AC_CHECK_FUNCS): Add lstat.
+
+2000-07-20 Paul Eggert <eggert@twinsun.com>
+
+ Use a POSIX-compliant shell instead of /bin/sh.
+ Idea suggested by Albert Chin-A-Young <china@thewrittenword.com>.
+
+ * m4/shell.m4: New file.
+ * configure.in (AC_PROG_SHELL): Add it.
+ * Makefile.am (ACINCLUDE_INPUTS): Add $(M4DIR)/shell.m4.
+ (.in): Replace /bin/sh with $(SHELL).
+
+2000-04-17 Bruno Haible <haible@clisp.cons.org>
+
+ * Makefile.am (install-exec-hook): If hard links fail, try symlinks.
+
+2000-04-02 Jim Meyering <meyering@ascend.com>
+
+ * Makefile.am (install-exec-hook): Remove link targets before
+ installing.
+
+2000-01-02 Albert Chin-A-Young <china@thewrittenword.com>
+
+ * gzip.texi: Add direntry.
+
+1999-12-21 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h, gzip.texi: Revision 1.3, dated today.
+ * gzip.c (license_msg, usage, version, help, license):
+ Adjust to current GNU coding standards.
+ (total_in, total_out): Remove unnecessary initialization.
+ * zip.c (file_read): Report read errors.
+ * util.c (fill_inbuf): Likewise.
+ * gzip.c (main): Don't assume EOF == -1.
+ * unlzw.c (unlzw): Likewise.
+ * util.c (copy, fill_inbuf): Likewise.
+
+1999-11-18 Paul Eggert <eggert@twinsun.com>
+
+ * m4/largefile.m4 (AC_SYS_LARGEFILE_FLAGS):
+ Work around a bug in the QNX shell, which doesn't
+ propagate exit status of failed commands inside shell assignments.
+
+1999-10-07 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h, gzip.texi:
+ Revision 1.2.4294967306 dated today. This is the successor to
+ revision 1.2.4.4294967305; automake requires the new (shorter) number.
+
+ Convert to automake.
+
+ * Makefile.am, gunzip.1, zcat.1, zcmp.1, AUTHORS: New files.
+
+ * revision.h (VERSION): Remove; moved to config.h.
+
+ * configure.in (AM_INIT_AUTOMAKE, AM_CONFIG_HEADER,
+ AC_CANONICAL_HOST, AC_OBJEXT): Add.
+ (AC_PROG_CPP): Remove.
+ (AC_SYS_LARGEFILE): Add, replacing older inline code.
+ (ASCPP): Use $OBJEXT.
+ (LIBOBJS): Add match.o if needed.
+ (AC_PROG_INSTALL): Remove.
+ (AC_EXT, AC_C_CONST): Add.
+ (AC_CHECK_HEADERS): Add, replacing lots of AC_HEADER_CHECKs.
+ All instances of defined(NO_TIME_H) changed to !defined(HAVE_TIME_H),
+ etc.
+ (AC_CHECK_FUNCS): Add utime.
+ (SEDCMD): Use $interpval, not $ac_cv_sys_interpreter.
+ (AC_PREFIX_PROGRAM): Add, replacing AC_PREFIX.
+ (ZCAT, G): Remove.
+ (LIBOBJS): Add.
+ (OBJA): Remove; LIBOBJS now does this.
+
+ * bits.c, gzip.c, deflate.c, inflate.c, lzw.c, trees.c, unlzh.c,
+ unlzw.c, unpack.c, unzip.c, util.c, zip.c: Include <config.h>
+ first; this is needed for proper large-file support, given the new
+ way of configuring large files.
+
+ * gzip.c: Include <sys/types.h>; Ultrix needs this.
+ (TIME_OPT): Use STRUCT_UTIMBUF instead of empty string.
+ (help): Add bug-report address.
+ (do_stat): Depend on HAVE_LSTAT, not S_IFLNK, S_ISLNK, and NO_SYMLINK.
+
+1999-06-25 Paul Eggert <eggert@twinsun.com>
+
+ * inflate.c (huft_build):
+ Set n to length of v, to detect improper tables.
+ Don't accidentally grow j past z.
+
+1999-06-24 Paul Eggert <eggert@twinsun.com>
+
+ * Makefile.in (check): Update texinfo.tex size.
+
+ * configure.in (ASMV):
+ Define with AC_DEFINE; do not manipulate DEFS directly,
+ as this doesn't work with recent autoconf versions.
+
+1999-02-06 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h, gzip.texi: Revision 1.2.4.4294967305,
+ dated today. This merges the changes from gzip 1.2.4a, which fix
+ some typographical errors in the documentation and update the
+ bug-reporting address.
+
+1999-01-27 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h (VERSION, REVDATE):
+ Revision 1.2.4.4294967304, dated today.
+
+ Port to autoconf 2.13.
+
+ * Makefile.in (next, next-fat, coherent):
+ Update dirent headers to match Autoconf 2.13.
+ * configure.in (AC_RETSIGTYP): Remove; superseded by AC_TYPE_SIGNAL.
+ (AC_DYNIX_SEQ, AC_XENIX_DIR, AC_DIR_HEADER): Remove; superseded by
+ AC_HEADER_DIRENT.
+ * tailor.h (HAVE_DIRENT_H, HAVE_SYS_DIR_H):
+ Define instad of DIRENT, SYSDIR.
+ * gzip.c (NAMLEN): Renamed from NLENGTH. Depend on Autoconf 2.13 names
+ HAVE_DIRENT_H, HAVE_SYS_NDIR_H, HAVE_SYS_DIR_H, HAVE_NDIR_H
+ instead of the oldfashioned names DIRENT, SYSDIR, SYSNDIR, NDIR.
+ (CLOSEDIR): New macro.
+ (progerror): New function.
+ (treat_stdin, treat_file, creat_outfile, get_istat, check_ofname,
+ treat_dir): Use it, for brevity.
+ (treat_dir): Report any I/O errors when reading directories.
+
+ * COPYING, INSTALL, doc/texinfo.tex, install-sh:
+ Update to latest public versions.
+
+1998-11-18 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h (VERSION, REVDATE):
+ Revision 1.2.4.4294967303, dated today.
+
+ * gzip.c (get_method): Don't complain about trailing zeros at
+ the end of a gzipped file, as they're commonly appended to fill
+ out a block (e.g. by GNU tar).
+
+ * configure.in (CPPFLAGS, LDFLAGS, LIBS): Add large-file support
+ for HP-UX 10.20 and later.
+
+ * getopt.c, getopt.h, texinfo.tex: Sync with latest version at gnu.org.
+ * getopt1.c: New file.
+ * Makefile.in (SRCS): Add getopt1.c.
+ (OBJS): Add getopt1$O.
+ (getopt1$O): New dependency.
+ (check): Adjust desired size of compressed texinfo.tex to 55637,
+ to reflect the 1998-11-13 edition of texinfo.tex.
+
+ * gpl.texinfo: Remove; its addresses were out of date and
+ these days the GPL isn't reprinted in manuals anyway.
+ * gzip.texi: Remove reference to gpl.texinfo.
+ * Makefile.in (GENFILES): Remove gpl.texinfo.
+
+1998-11-13 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h (VERSION, REVDATE):
+ Revision 1.2.4.4294967302, dated today.
+
+ * gzip.c (input_eof): New function.
+ (treat_stdin, treat_file): Use it to fix premature detection of EOF
+ bug when a gzipped file concatenation boundary is at a multiple of
+ INBUFSIZ.
+
+ * Makefile.in (installman): Fix bug when installing from subdirectory.
+ ($(srcdir)/gzip.info): Renamed from gzip.info.
+ ($(srcdir)/gzip.info, realclean): Do not split gzip.info.
+
+1998-10-26 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h (VERSION, REVDATE):
+ Revision 1.2.4.4294967301, dated today.
+
+ * TODO: Update bug reporting address.
+
+ * Makefile.in (datadir, libdir): Remove unused macros.
+ (mandir): Let configure set it.
+ (manextdir): New macro.
+ (alldirs): Remove datadir, libdir; add manextdir.
+ (TEXI2HTML): New macro.
+ (installman, uninstall): Install into manextdir, not mandir.
+ (install-strip): New rule.
+ (installdirs): No need to build $(prefix)/man separately,
+ as it's now in alldirs.
+ (match$O): Compile with $(CFLAGS).
+ (gzip_1.html): New rule.
+
+ * gzip.c (get_istat): Remove lint by initializing z_suffix_errno.
+ (check_ofname): Do not assume unsigned char.
+
+ * util.c (strlwr): Don't assume char is unsigned.
+ (warning): Renamed from `warn'.
+
+ * gzip.h (tolow): Use tolower instead of relying on 'A'-'a'.
+ (warning): Renamed from warn.
+
+ * trees.c (warning): Renamed from warn.
+
+1998-10-14 Paul Eggert <eggert@twinsun.com>
+
+ Merge patches from Debian.
+
+ * NEWS, README, revision.h (VERSION, REVDATE):
+ Revision 1.2.4.4294967300, dated today.
+
+ * README, algorithm.doc, gzip.texi: Update maintainer address.
+
+ * gzexe.in, zdiff.in, znew.in:
+ Close security hole portably, using `set -C'.
+
+ * zgrep.in: Add -A, -B.
+
+ * gzexe.in: Use `gzip', not full path, to run gzip.
+
+ * zdiff.in: Report proper exit status.
+
+ * gzip.h (base_name): Renamed from basename. All uses changed.
+
+ * gzip.c (z_suffix): Now char *, so that there's no limit to length.
+ All uses change.
+ (main): If --quiet, abort gzip when SIGPIPE received.
+ (get_suffix): Don't assume z_suffix's address is a constant.
+ (get_istat): Likewise.
+ Check for buffer overflow.
+ Preserve errno correctly.
+ (make_ofname): Check for buffer overflow.
+
+ * util.c (fill_inbuf): Flush window before reporting read error.
+
+ * inflate.c (inflate_dynamic): Don't dump core if tl == NULL.
+
+ * Makefile.in (GENFILES): Add zless.in.
+ (SCRIPTS): Add zless.
+ (default): Build all programs, not just gzip.
+ (all): Add zless.
+ (installbin): Install zegrep, zfgrep.
+ (installman): Install zless man page.
+ (install_compress): Don't install compress.
+ (zless): New rule.
+
+1998-09-16 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h: Bump version number to 1.2.4.4294967299.
+
+ * tailor.h (UNLINK_READONLY_BUG): New macro.
+ * gzip.h (unlink): New decl.
+ * util.c (xunlink): New function.
+ * gzip.c
+ (treat_file, create_outfile, check_ofname, copy_stat, abort_gzip):
+ Use xunlink rather than unlink.
+ Do not chmod the file; xunlink will do that if need be.
+
+1998-05-21 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h: Bump version number to 1.2.4.4294967298.
+ * Makefile.in (prefix): Set from @prefix@.
+ (distclean): Remove config.cache.
+
+1998-01-15 Paul Eggert <eggert@twinsun.com>
+
+ * NEWS, README, revision.h:
+ Bump version number to indicate large-file support.
+
+1997-10-08 Paul Eggert <eggert@twinsun.com>
+
+ * gzip.c (CHAR_BIT): Define if <limits.h> doesn't.
+ (OFF_T_MIN, OFF_T_MAX): New macros.
+ (do_list): Revert to fixed format, but this time don't assume
+ that 9 digits suffice; use a width taken from the maximum value
+ that off_t can represent.
+ (off_t): Do not typedef; autoconf handles this now.
+ * gzip.c, util.c (<limits.h>): Include if HAVE_LIMITS_H.
+ * gzip.h, util.c (fprint_off): Now takes int width argument.
+ * configure.in (AC_HAVE_HEADERS): Check for limits.h.
+ (AC_TYPE_OFF_T): Use this instead of grepping sys/types.h for off_t.
+ (AC_TYPE_SIZE_T): Use this instead of obsolescent AC_SIZE_T.
+ * tailor.h (NO_OFF_T): Remove.
+ (off_t): Define this instead.
+
+1997-10-03 Paul Eggert <eggert@twinsun.com>
+
+ * Makefile.in, bits.c, configure.in, deflate.c, gzip.c, gzip.h,
+ inflate.c, trees.c, unlzw.c, unpack.c, unzip.c, util.c, zip.c:
+ Adjust to Solaris 2.6, which has large files but small off_t by default.
+ * gzip.c: Output more reasonable message if input file is too large.
+ * gzip.c, util.c: Propagate errno from point of error to `perror'.
+ * unzip.c: Allow uncompressing files larger than 4 gigabytes.
+ http://www.gzip.org/4g.patch (1996-07-21)
+
+Wed Aug 18 09:34:23 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.2.4
+ By default, do not restore file name and timestamp from those saved
+ inside the .gz file (behave as 'compress'). Added the --name option
+ to force name and timestamp restoration.
+ Accept - as synonym for stdin.
+ Use manlinks=so or ln to support either hard links or .so in man pages
+ Accept foo.gz~ in zdiff.
+ Added support for Windows NT
+ Handle ENAMETOOLONG for strict Posix systems
+ Use --recursive instead of --recurse to comply with Webster and
+ the GNU stdandard.
+ Allow installation of shell scripts with a g prefix: make G=g install
+ Install by default zcat as gzcat if gzcat already exists in path.
+ Let zmore behave as more when invoked without parameters (give help)
+ Let gzip --list reject files not in gzip format even with --force.
+ Don't complain about non gzip files for options -rt or -rl.
+ Added advice in INSTALL for several systems.
+ Added makefile entries for NeXTstep 3.1 (if configure fails)
+ Avoid problem with memcpy on Pyramid (gave crc error on some files)
+ Support the -r option when compiled with Borland C++ on msdos.
+ Force lower case file names only for FAT file systems (not HPFS)
+ Rewrite one expression in inflate.c to avoid cc bug on Solaris x86.
+ In the msdos makefiles, get match.asm from the msdos subdirectory.
+ Catch SIGTERM and SIGHUP only if they are not ignored.
+ getopt.c: on Amiga, "#if !defined(const)" does not compile.
+ Use register parameters on Amiga.
+ Do not force names to lower case on Amiga.
+ Fix support of Atari TOS (Makefile.st and tailor.h)
+ In unlzw.c, do not suggest using zcat if zcat already used.
+ In INSTALL, suggest using bsdinst for HPUX.
+ Document Turbo C++ 1.0 bug in INSTALL.
+ Improved the documentation relative to the --no-name option.
+ Avoid signed/unsigned warnings in several files.
+ Added pointer to jka-compr19.el in README.
+ Added pointer to OS/2 executables in README.
+ Added --block-compress in tar -z example (gzip.1 and gzip.texi).
+ Don't keep rcsid in executable (avoid compilation warnings).
+ Check also the correctness of the first byte of an .Z file.
+ Return non zero status for an invalid option.
+ Remove "NEWFILES" from os2/gzip.def for Borland C++ on OS/2.
+ Remove "time stamp restored" message (just obey the -N request).
+
+Thu Jun 24 10:27:57 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.2.3
+ Don't display the output name when decompressing except with --verbose.
+ Remove usage of alloca in getopt.c and all makefiles.
+ Use ASCPP instead of CPP to avoid breaking AC_HEADER_CHECK on RiscOS.
+ Added the zfile shell script in subdirectory sample.
+ Moved the list of compiler bugs from README to INSTALL.
+ Added vms/Readme.vms.
+ Fix DIST_BUFSIZE check in unlzh.c for 16 bit machines.
+ Fix REGSIGTYP macro in configure.in.
+ Use 'define' instead of == in vms/gzip.hlp.
+ Avoid warnings in unlzh.c
+ Allow separate installation of binaries and man pages.
+ Simplified handling of file names with spaces in zgrep and znew.
+ Fix dependencies and remove rule for trees.c in amiga/Makefile.sasc
+ Add missing quote in gzexe.
+
+Thu Jun 17 13:47:05 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.2.2
+ Fix a compilation error in gzip.c on Sun with cc (worked with gcc).
+
+Wed Jun 16 11:20:27 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.2.1
+ Let zmore act as more if the data is not gzipped.
+ By default, display output name only when name was actually truncated.
+ Use absolute path names in gzexe'd programs for better security.
+ In gzexe, use chmod 700 instead of 755 and don't gzexe tail,rm,etc...
+ Update vms/gzip.hlp.
+ Added a note about the fast options (-1 to -3) in algorithm.doc.
+ Improved man page for zgrep.
+ Minor fixes to gzip.texi.
+ Always set LC_ALL and LANG in configure (for tr on HPUX)
+
+Mon Jun 14 10:03:24 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.2
+ Added the --list option to display the file characteristics.
+ Added the --no-name option: do not save or restore original filename
+ Save the original name by default.
+ Allow gunzip --suffix "" to attempt decompression on any file
+ regardless of its extension if an original name is present.
+ Add support for the SCO compress -H format.
+ gzip --fast now compresses faster (speed close to that of compress)
+ with degraded compression ratio (but still better than compress).
+ Default level changed to -6 (acts exactly as previous level -5) to
+ be a better indication of its placement in the speed/ratio range.
+ Use smart name truncation: 123456789012.c -> 123456789.c.gz
+ instead of 12345678901.gz
+ With --force, let zcat pass non gzip'ed data unchanged (zcat == cat)
+ Added the zgrep shell script.
+ Made sub.c useful for 16 bit sound, 24 bit images, etc..
+ Supress warnings about suffix for gunzip -r, except with --verbose.
+ Moved the sample programs to a subdirectory sample.
+ On MSDOS, use .gz extension when possible (files without extension)
+ Added a "Special targets" section in INSTALL.
+ Use stty -g correctly in zmore.in.
+ Use cheaper test for gzipness in zforce.in.
+ Remove space before $ in match.S (no longer accepted by gas 2.x)
+ For the shell scripts, do not assume that gzip is in the path.
+ Fix syntax error and define lnk$library in vms/Makefile.mms
+ REGSIGTYPE is void on the Amiga.
+ Do not write empty line when decompressing stdin with --verbose.
+ Fix the 1.1.2 fix for VMS (bug in get_suffix)
+ Added warning in README about compiler bug on Solaris 2.1 for x86.
+ Added warning about 'rehash' in INSTALL.
+ Removed default value of read_buf in bits.c (supermax doesn't like).
+ In tailor.h, added support for Borland C and Zortech C on OS/2.
+ Added warning in gzexe about Ultrix buggy sh (use /bin/sh5 instead).
+ Added warning in zdiff about AIX buggy sh (use /bin/ksh instead).
+ In configure.in, do not try the asm code if DEFS contains NO_ASM
+
+Fri Jun 4 09:49:33 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.1.2
+ Fix serious bug for VMS (-gz not removed when decompressing).
+ Allow suffix other than .gz in znew.
+ Do not display compression ratio when decompressing stdin.
+ In zmore.in, work around brain damaged stty -g (Ultrix).
+ Display a correct compression ratio for .Z files.
+ Added .z to .gz renaming script in INTALL.
+ Allow setting CFLAGS in configure.
+ Add warning in README about bug in Concentrix cc compiler.
+ Avoid || in Makefile.in (at least one make doesn't support this).
+ Disable useless --ascii option for the Amiga.
+ Add a pointer to the Primos executable in README.
+ Added description of extra field in algorithm.doc.
+ Do not redefine NULL in alloca.c.
+ Added check for unsupported compression methods.
+ Avoid getopt redeclaration on OSF/1.
+
+Tue Jun 1 09:07:15 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.1.1
+ Fix serious bug in vms.c (== instead of =).
+ Added --ascii option.
+ Add workaround in configure.in for Ultrix (quote eval argument)
+ Do not use unset in znew (not supported on Ultrix)
+ Use tar.gz instead of tar.z for the distribution of gzip.
+ Add missing menu item in gzip.texi.
+ Use size_t instead of unsigned, add AC_SIZE_T in configure.in.
+
+Fri May 28 11:40:01 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.1
+ Use .gz suffix by default, add --suffix option.
+ Let gunzip accept a "_z" suffix (used by one 'compress' on Vax/VMS).
+ Quit when reading garbage from stdin instead of reporting an error.
+ Added sub.c and add.c for compression of 8 bit images.
+ Added makefile for VAX/MMS and support for wildcards on VMS.
+ Added support for MSC under OS/2.
+ Added support for Prime/PRIMOS.
+ Display compression ratio also when decompressing.
+ Quit after --version (GNU standard)
+ Use --force to bypass isatty() check.
+ Accept --silent as synonym for --quiet (see longopts.table)
+ Accept --to-stdout as synonym for --stdout (see longopts.table)
+ Accept -H and -? in addition to -h and --help.
+ Added comparison of zip and gzip in the readme file.
+ Return an error code in all main compression/decompression functions.
+ Continue processing other files in case of recoverable error.
+ Add description of -f in znew.1.
+ Do not keep uncompressed version for znew -t if .gz already exists.
+ On Unix, use only st_ino and st_dev in same_file().
+ Use S_IRUSR and S_IWUSR if they exist.
+ "test $1 = -d" -> "test x$1 = x-d" in gzexe.
+ In match.S, use symbol sysV68 to detect the Motorola Delta.
+ Do not include memory.h with gcc (conflicting declarations on Sun).
+ Fix more typos.
+ On VMS, define unlink as delete also for gcc.
+ In "make check", unset LANG because "wc -c" fails on Kanji.
+ Renamed shdir as scriptdir.
+ Use the 68020 code instead of 68000 code on the NeXT.
+ Documented --uncompress as synonym for --decompress.
+ Include the standard header files before gzip.h (needed on Bull).
+ Do not assume that _POSIX_VERSION implies dirent.h present.
+ Removed gzip-tar.patch since tar 1.11.2 handles gzip directly.
+ Use less memory when compiled with -DSMALL_MEM (for MSDOS).
+ Optimized updcrc().
+ Don't complain if cc -E does not work correctly.
+ Do not attempt reading 64K bytes on 16 bit Unix systems.
+ Do not use the variable name 'overhead' which is reserved on Lynx!
+ One BULL compiler does not like *p++ in inflate.c => *p, p++.
+ Use casts on free and memcmp to avoid warnings.
+ Remove the "off by more than one minute" time stamp kludge, but
+ document how to avoid saving the time stamp on pipes if desired.
+ Include crypt.h in inflate.c (one system predefines the CRYPT symbol).
+ Add links to gunzip and (g)zcat in the default make rule.
+ Create installation directories if they do not exist.
+ Clarified --prefix option in INSTALL.
+ Use symbol mc68k in match.S for the DIAB DS90.
+ Guard against zero length _match.s in configure.in.
+ In zmore, restore all tty options using stty -g.
+ Added support for MacOS
+ Simplified makecrc.c.
+ Avoid warnings in getopt.c, util.c, unlzw.c.
+ Use autoconf 1.4, in particular for INSTALL and AC_HAVE_POUNDBANG
+ Use .so instead of hard links for zcat.1, gunzip.1 and zcmp.1.
+ Fixed declration of sig_type.
+ Make consistency check in fcfree.
+ Added ztouch.
+ Do not complain if utime fails on a directory (for OS/2).
+
+Thu Mar 18 18:56:43 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.0.7
+ Allow zmore to read from standard input (like more).
+ Support the 68000 (Atari ST) in match.S.
+ Retry partial writes (required on Linux when gzip is suspended in
+ a pipe).
+ Allow full pathnames and renamings in gzexe.
+ Don't let gzexe compress setuid executables or gzip itself.
+ Added vms/Makefile.gcc for gcc on the Vax.
+ Give a pointer to Solaris and VMS executables of gzip in README.
+ Allow installation of binaries and shell scripts in different dirs.
+ Do not use alloca on the Cray.
+ Provide strspn and strcspn if string.h does not exist.
+ Define O_CREAT and O_EXCL from FCREAT and FEXCL if necessary.
+ Remove gzip.doc in make realclean.
+ Fixed many typos. (Corrections to my English are welcome.)
+ Put "make manext=l install" at the correct place in INSTALL.
+ Fix incorrect examples in INSTALL and give more examples.
+ Include zdiff.1 for install and uninstall.
+ Allows complex PAGER variable in zmore (e.g.: PAGER="col -x | more")
+ Avoid warning on unused indfound in getopt.c.
+ Cast memset arg to void* (required by some buggy compilers).
+ Include sys/types.h before dirent.h in acgeneral.m4.
+ Fix acgeneral.m4 AC_COMPILE_CHECK to avoid warnings.
+ Don't use alloca.c with gcc. (One NeXT user did not have alloca.h).
+ Change all error messages according to GNU standards.
+ Restore time stamp only if off by more than one minute.
+ Allow installation of zcat as gzcat.
+ Suppress help message and send compressed data to the terminal when
+ gzip is invoked without parameters and without redirection.
+ (Explicit request from Noah Friedman.)
+ Add compile option GNU_STANDARD to respect the GNU coding standards:
+ with -DGNU_STANDARD, behave as gzip even if invoked under the
+ name gunzip. (Complaints to /dev/null or the FSF, not to me!)
+
+Fri Mar 10 13:27:18 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.0.6
+ Let gzexe detect executables that are already gzexe'd.
+ Don't try restoring record format on VMS (the simple 1.0.5 code
+ worked correctly only on fixed-512 files). Suppress text_mode.
+ Added asm version for 68000 in amiga/match.a.
+ Use asm version for Atari TT.
+ Fix "make clean" in vms/Makefile.vms.
+ For OS/2, assume HPFS by default, add flag OS2FAT if necessary.
+ Fixed some bugs in zdiff and define zcmp as a link to zdiff.
+ Added zdiff.1
+ Remove configure hack for NeXT; add general fix to autoconf instead
+ Do not strip a ".z" extension if this results in an empty name.
+ Avoid array overflow in get_prefix() for extensions > 10 chars.
+ Accept either q or e to quit zmore.
+ In zmore, try restoring tty mode in all cases.
+ Use Motorola style for match.S on the NeXT.
+ configure.in: unsetenv *hangs* with the Siemens csh...
+ Update vms/gzip.hlp.
+
+Thu Mar 4 14:13:34 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.0.5
+ For VMS, restore the file type for variable record format, otherwise
+ extract in fixed length format (not perfect, but better than
+ forcing all files to be in stream_LF format).
+ Use "-z" suffix for VMS.
+ Use only .z, .*-z, .tgz, .taz as valid gzip extensions; update
+ zforce accordingly.
+ Allow a version number in input file names for VMS.
+ Added sample program zread.c.
+ Fix "make check" for some implementations of /bin/sh.
+ Don't rely on stat() for filenames with extension > 3 chars
+ on MSDOS, OS2 and Atari.
+ Garbage collect files in /tmp created by gzexe.
+ Quote $opt in znew.
+ Use TOUCH env variable in znew if it exists.
+ Better error message for gunzip on empty or truncated file.
+ Allow prototypes in getopt.h when __STDC__ defined but 0.
+ Added "make clean" in vms/Makefile.vms.
+ Removed -g from default CFLAGS (with Noah's permission!)
+ Avoid too many HAVE_xxx_H for most systems; use common defaults.
+ Moved default Atari flags into tailor.h for consistency.
+ Use memzero() to clear the hash table.
+ Update vms/gzip.hlp to reflect the VMS behavior.
+ Fix OS_CODE (to fit in a byte).
+ Add utime.h for the Amiga.
+ Add gcc support for the Amiga.
+ Work around incorrect dirent.h for NeXT 2.0.
+ Added Makefile entry for Coherent.
+
+Fri Feb 22 11:20:49 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.0.4
+ Added optimized asm version for 68020.
+ Add support for DJGPP.
+ Add support for the Atari ST.
+ Added zforce to rename gzip'ed files with truncated names.
+ Do not install with name uncompress (some systems rely on the
+ absence of any check in the old uncompress).
+ Added missing function (fcfree) in msdos/tailor.c
+ Let gunzip handle .tgz files, and let gzip skip them.
+ Added 'stty min 1' in zmore for SysV and fixed trap code.
+ Suppress .PHONY in Makefile.in, which breaks old makes.
+ Added documentation about pcat and unpack in INSTALL.
+ Add cast to getenv for systems without stdlib.h.
+ Use VAXC instead of VMS to avoid confusion for gcc.
+ Add -K to znew.1.
+ Add gzexe.1.
+ Try preserving file permissions in gzexe.
+ Added -d option for gzexe.
+ Guard against spaces in file names in gzexe.
+ Use CMP env. variable in zcmp.
+ Return a warning exit status for gzip of file with .z suffix.
+ Suppress usage of d_ino which is not portable to all systems.
+ Use #ifdef instead of #if for consistency.
+ For VMS, use "cc util.c" instead of "cc util" (pb with logical names)
+ Added utime() for Amiga.
+ Renamed gzcat.1 as zcat.1.
+ Include fcntl.h for Amiga (for read and write).
+ For VMS, add definition of symbols and links in the makefiles.
+ Give a VMS look to vms/gzip.hlp.
+ Save the original name only when necessary.
+ Add a mode parameter for open in read mode (required by VMS).
+ For VMS, remove the version suffix from the original name.
+ Accept both / and \ as path separator for MSDOS.
+ Let gunzip extract stored .zip files correctly.
+ Added warning about VFC format in vms/gzip.hlp.
+ In znew, skip a bad file but process the others.
+ Cleanup tailor.h.
+ Use GZIP_OPT for VMS to avoid conflict with program name.
+ Added description of GZIP variable in gzip.texi.
+
+Thu Feb 11 17:21:32 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.0.3
+ Add -K option for znew to keep old .Z files if smaller.
+ Add -q option (quiet) to cancel -v in GZIP env variable.
+ For Turbo C, normalize pointers before freeing them.
+ Add more safety checks in add_envopt().
+ Add do_exit() for uniform exit path (always free memory).
+ Reduce MAX_PATH_LEN for MSDOS.
+ Include sys/types.h before signal.h
+ Avoid strdup, the NeXT does not have it.
+ Made gzexe safer on systems with filename limitation to 14 chars.
+
+Fri Feb 10 09:45:49 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.0.2
+ Added env variable GZIP for default options.
+ Added support for the Amiga.
+ znew now keeps the old .Z if it is smaller than the .z file.
+ Added gzexe to compress rarely used executables.
+ Reduce memory usage when using static allocation (no DYN_ALLOC).
+ Better separation of warning and error return codes.
+ Fix unlzw.c to make DYN_ALLOC and MAXSEG_64K independent options.
+ Allow INBUFSIZ to be >= 32K in unlzw (don't use sign of rsize)
+ Generate tar file in old format to avoid problems with old systems.
+ Preserve time stamp in znew -P if touch -r works.
+ Use ${PAGER-more} instead of ${PAGER:-more} in zmore.
+ Do not use unsigned instead of mode_t.
+ Better error message for trailing garbage in .z file; ignore this
+ garbage on VMS.
+ In zmore, use icanon instead of -cbreak on SYSV.
+ Add trap handler in zmore.
+ Use char* instead of void* for non STDC compilers.
+ Added makefile entry for Xenix on 286.
+ Return an error code when existing file was not overwritten.
+ Use prototype of lzw.h for lzw.c.
+ Fix znew with -P option alone.
+ Give warning for directories even without -v.
+ Close output file before unlink() in case of error.
+ Suppress all target dependent ifdef from the portable files.
+ Free all dynamically allocated variables upon exit.
+
+Thu Feb 4 18:23:56 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.0.1
+ Fixed some trivial errors in msdos/Makefile.bor
+
+Thu Feb 4 10:00:59 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * version 1.0
+ gzip now runs on Vax/VMS (Amiga support will come in next version).
+ Do not overwrite files without -f when using /bin/sh.
+ Support the test option -t for compressed (.Z) files.
+ Flush output for bad compressed files. Add warning in README.
+ Added makefiles for MSDOS.
+ Don't rely on presence of csh in configure
+ Added gunzip.1 and gzcat.1.
+ Updated znew.1.
+ Check reserved flags in unlzw().
+ Return dummy value in main to avoid lint warning.
+ Define OF in lzw.h for lint.
+ Allow both "znew -v -t" and "znew -vt".
+ Don't overwrite the output file name for multiple parts.
+ Echo just a warning if configure is out of date.
+ Use ; instead of , in trees.c (confuses the SAS Amiga compiler).
+ In INSTALL, document "DEFS='-DM_XENIX' ./configure".
+ Use OTHER_PATH_SEP for more portability (DOS, OS2, VMS, AMIGA).
+ Make all directories world writable for broken versions of tar.
+ Use gzip -cd instead of zcat in zmore, zcmp, zdiff.
+ Don't use GNU tar for distributions, some systems can't untar.
+ Do not exit() for gzip --version.
+
+Mon Jan 26 10:26:42 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Beta version 0.8.2
+ Avoid 'far' declarations for MSDOS.
+ Use test -f instead of test -x in configure.in (for Ultrix)
+ Add empty else part to if in Makefile.in for broken shells.
+ Use NO_UNDERLINE instead of UNDERLINE (pb with Linux cpp)
+ Accept continuation files with -ff (for damage recovery)
+ Small patch to Makefile.os2
+ Use memzero instead of bzero to avoid potential conflicts
+ Document restriction on extraction of zip files.
+ Fix quoting in ACL_HAVE_SHELL_HACK.
+ Do not check file size on MSDOS because of bug in DIET.
+ Allow zcat on a file with multiple links.
+ Add fix in inflate.c for compatibility with pkzip 2.04c.
+ Release gzip in tar.z and tar format. (No tar.Z).
+
+Fri Jan 22 10:04:13 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Beta version 0.8.1
+ Fixed Makefile.os2
+ Fixed #if directives that TurboC does not like.
+ Don't rely on uncompress in znew, use gzip -d.
+ Add the pipe option -P in znew.
+ Add some more ideas in TODO.
+ Support both NDIR and SYSNDIR.
+
+Sat Jan 21 15:46:38 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Beta version 0.8
+ Support unpack.
+ Check for _match.o in configure.in in addition to return status.
+ Include <sys/types.h> in zip.c
+ Define local variables and functions as local.
+ Accept more alternative names for the program (pcat, gzcat, ...).
+ Accept .exe as well as .EXE.
+ Uncompress files with multiple links only with -f.
+ Better error message for gunzip of non-existent file.z.
+ Fix the entry for /etc/magic in INSTALL.
+ Use AC_HAVE_HEADERS uniformly instead of special macros.
+ Install the man pages as .1 by default instead of .l.
+ Document crypt++.el in README.
+ Fix for unlzw() on 16-bit machines (bitmask must be unsigned).
+ Complain if input and output files are identical.
+ Create a correct output name for files of exactly 13 chars.
+ Do not overwrite CPP if set
+ Check for i386 before trying to assemble match.s
+ Check for underline in external name before assembling
+ Add patch for tar 1.11.1.
+
+Mon Jan 5 10:16:24 1993 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Beta version 0.7
+ Use "make check" instead of "make test".
+ Do not rely on dirname in znew.
+ Keep time stamp and pass options to gzip in znew.
+ Rename .l files back to .1 to avoid conflict with lex
+ Do not create .z.z files with gzip -r.
+ Use nice_match in match.asm
+ Unroll loops in deflate.c
+ Do not attempt matches beyond the window end
+ Allow again gunzip .zip files (was working in 0.5)
+ Allow again compilation with TurboC 2.0 (was working in 0.4)
+
+Tue Dec 30 20:00:19 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Beta version 0.6
+ The .z extension is used by pack, not compact (README, gzip.1)
+ Accept gzcat in addition to zcat.
+ Use PAGER in zmore if defined.
+ Man pages for /usr/local/man/manl should have extension .l.
+ Don't redefine bzero on the NeXT
+ Allow incomplete Huffman table if there is only one code.
+ Don't lookahead more than 7 bits (caused premature EOF).
+ Added "make test" to check for compiler bugs.
+ Don't rely on `i386`; try to assemble directly
+ Change magic header to avoid conflict with freeze 1.x.
+ Added entry for /etc/magic in INSTALL.
+ Do not destroy an input .zip file with more than one member.
+ Display "untested" instead of "OK" for gzip -t foo.Z
+ With -t, skip stdin in .Z format
+ Allow multiple compressed members in an input file.
+ Ignore a zero time stamp.
+ Made znew safer.
+
+Tue Dec 29 10:00:19 1992 Noah Friedman (friedman@gnu.ai.mit.edu)
+
+ Added test for #!/bin/sh in configure.in.
+ Fix some references to $srcdir in Makefile.in
+
+Mon Dec 21 17:33:35 1992 Jean-Loup Gailly (jloup@chorus.fr)
+
+ * Beta version 0.5
+ Put RCS ids in all files.
+ Added znew to recompress old .Z files with gzip.
+ Avoid "already .z suffix" messages for -r and no -v.
+ Put back check for d_ino in treat_dir().
+ Use HAVE_STRING_H instead of USG.
+ Added os2/Makefile.os2
+ Use SYSUTIME on OS/2.
+ Info dir is $(prefix)/info, not $(prefix)/lib/info.
+ Support long options, added getopt and alloca
+ Support -V and -t
+ Reorder configure.in according to suggestions in autoconf.info
+ Allow links when not removing original file
+ Allow either .z or .Z in zdiff
+
+Wed Nov 25 11:40:04 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Beta version 0.4.1
+ Save only the original base name, don't include any directory prefix.
+ Don't use HAVE_LONG_FILE_NAMES (support multiple file system types).
+ Fix declaration of abort_gzip in gzip.h.
+ Include unistd.h when it exists to avoid warnings with gcc -Wall.
+
+Mon Nov 23 12:39:01 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Beta version 0.4
+ Lots of cleanup
+ Use autoconf generated 'configure'
+ Fixed the NO_MULTIPLE_DOTS code
+ Fixed the save_orig_name code
+ Support for MSDOS (Turbo C)
+
+Thu Nov 19 15:18:22 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Beta version 0.3
+ Added auto configuration. Just type "make" now.
+ Don't overwrite compress by default in "make install". Use
+ "make install_compress" to overwrite.
+ Add match.s for 386 boxes.
+ Added documentation in texinfo format.
+ Provide help for "gunzip" invoked without redirected input.
+ Save original file name when necessary.
+ Support OS/2 (Kai-Uwe Rommel).
+
+Tue Nov 17 14:32:53 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Alpha version 0.2.4
+ Return 0 in get_istat() when ok (caused error with zcat).
+ Don't update crc on compressed data (caused crc errors on
+ large files).
+
+Fri Nov 13 15:04:12 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Alpha version 0.2.3
+ Initialize rsize in unlzw.c
+ Initialize ofd for zcat.
+ Do not use volatile ifname as argument of treat_dir.
+ Add -1 to -9 in gzip.1.
+
+Sat Oct 31 18:30:00 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Alpha version 0.2.2.
+ Fix error messages.
+ Accept gunzip on zip files.
+
+Sat Oct 31 17:15:00 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Alpha version 0.2.1
+ Use ctype.h in util.c (problem on SysV).
+ Create BINDIR if it does not exist.
+ Use cc by default.
+ Added zcmp, zmore, zdiff.
+ Fixed the man page gzip.1.
+
+Sat Oct 31 17:00:00 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Alpha version 0.2
+ Fixed compilation problems with gcc
+
+Sat Oct 31 12:46:00 1992 Jean-loup Gailly (jloup@chorus.fr)
+
+ * Alpha version 0.1 released (under time pressure), so it's not
+ much tested, sorry.
+
+
+Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+Copyright (C) 1992, 1993 Jean-loup Gailly
+
+This file is part of gzip (GNU zip).
+
+gzip is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+gzip is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with gzip; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.
--- /dev/null
+Basic Installation
+==================
+
+ These are generic installation instructions.
+
+ The `configure' shell script attempts to guess correct values for
+various system-dependent variables used during compilation. It uses
+those values to create a `Makefile' in each directory of the package.
+It may also create one or more `.h' files containing system-dependent
+definitions. Finally, it creates a shell script `config.status' that
+you can run in the future to recreate the current configuration, and a
+file `config.log' containing compiler output (useful mainly for
+debugging `configure').
+
+ It can also use an optional file (typically called `config.cache'
+and enabled with `--cache-file=config.cache' or simply `-C') that saves
+the results of its tests to speed up reconfiguring. (Caching is
+disabled by default to prevent problems with accidental use of stale
+cache files.)
+
+ If you need to do unusual things to compile the package, please try
+to figure out how `configure' could check whether to do them, and mail
+diffs or instructions to the address given in the `README' so they can
+be considered for the next release. If you are using the cache, and at
+some point `config.cache' contains results you don't want to keep, you
+may remove or edit it.
+
+ The file `configure.ac' (or `configure.in') is used to create
+`configure' by a program called `autoconf'. You only need
+`configure.ac' if you want to change it or regenerate `configure' using
+a newer version of `autoconf'.
+
+The simplest way to compile this package is:
+
+ 1. `cd' to the directory containing the package's source code and type
+ `./configure' to configure the package for your system. If you're
+ using `csh' on an old version of System V, you might need to type
+ `sh ./configure' instead to prevent `csh' from trying to execute
+ `configure' itself.
+
+ Running `configure' takes awhile. While running, it prints some
+ messages telling which features it is checking for.
+
+ 2. Type `make' to compile the package.
+
+ 3. Optionally, type `make check' to run any self-tests that come with
+ the package.
+
+ 4. Type `make install' to install the programs and any data files and
+ documentation.
+
+ 5. You can remove the program binaries and object files from the
+ source code directory by typing `make clean'. To also remove the
+ files that `configure' created (so you can compile the package for
+ a different kind of computer), type `make distclean'. There is
+ also a `make maintainer-clean' target, but that is intended mainly
+ for the package's developers. If you use it, you may have to get
+ all sorts of other programs in order to regenerate files that came
+ with the distribution.
+
+Compilers and Options
+=====================
+
+ Some systems require unusual options for compilation or linking that
+the `configure' script does not know about. Run `./configure --help'
+for details on some of the pertinent environment variables.
+
+ You can give `configure' initial values for variables by setting
+them in the environment. You can do that on the command line like this:
+
+ ./configure CC=c89 CFLAGS=-O2 LIBS=-lposix
+
+ *Note Environment Variables::, for more details.
+
+Compiling For Multiple Architectures
+====================================
+
+ You can compile the package for more than one kind of computer at the
+same time, by placing the object files for each architecture in their
+own directory. To do this, you must use a version of `make' that
+supports the `VPATH' variable, such as GNU `make'. `cd' to the
+directory where you want the object files and executables to go and run
+the `configure' script. `configure' automatically checks for the
+source code in the directory that `configure' is in and in `..'.
+
+ If you have to use a `make' that does not support the `VPATH'
+variable, you have to compile the package for one architecture at a time
+in the source code directory. After you have installed the package for
+one architecture, use `make distclean' before reconfiguring for another
+architecture.
+
+Installation Names
+==================
+
+ By default, `make install' will install the package's files in
+`/usr/local/bin', `/usr/local/man', etc. You can specify an
+installation prefix other than `/usr/local' by giving `configure' the
+option `--prefix=PATH'.
+
+ You can specify separate installation prefixes for
+architecture-specific files and architecture-independent files. If you
+give `configure' the option `--exec-prefix=PATH', the package will use
+PATH as the prefix for installing programs and libraries.
+Documentation and other data files will still use the regular prefix.
+
+ In addition, if you use an unusual directory layout you can give
+options like `--bindir=PATH' to specify different values for particular
+kinds of files. Run `configure --help' for a list of the directories
+you can set and what kinds of files go in them.
+
+ If the package supports it, you can cause programs to be installed
+with an extra prefix or suffix on their names by giving `configure' the
+option `--program-prefix=PREFIX' or `--program-suffix=SUFFIX'.
+
+Optional Features
+=================
+
+ Some packages pay attention to `--enable-FEATURE' options to
+`configure', where FEATURE indicates an optional part of the package.
+They may also pay attention to `--with-PACKAGE' options, where PACKAGE
+is something like `gnu-as' or `x' (for the X Window System). The
+`README' should mention any `--enable-' and `--with-' options that the
+package recognizes.
+
+ For packages that use the X Window System, `configure' can usually
+find the X include and library files automatically, but if it doesn't,
+you can use the `configure' options `--x-includes=DIR' and
+`--x-libraries=DIR' to specify their locations.
+
+Specifying the System Type
+==========================
+
+ There may be some features `configure' cannot figure out
+automatically, but needs to determine by the type of host the package
+will run on. Usually `configure' can figure that out, but if it prints
+a message saying it cannot guess the host type, give it the
+`--build=TYPE' option. TYPE can either be a short name for the system
+type, such as `sun4', or a canonical name which has the form:
+
+ CPU-COMPANY-SYSTEM
+
+where SYSTEM can have one of these forms:
+
+ OS
+ KERNEL-OS
+
+ See the file `config.sub' for the possible values of each field. If
+`config.sub' isn't included in this package, then this package doesn't
+need to know the host type.
+
+ If you are _building_ compiler tools for cross-compiling, you should
+use the `--target=TYPE' option to select the type of system they will
+produce code for.
+
+ If you want to _use_ a cross compiler, that generates code for a
+platform different from the build platform, you should specify the host
+platform (i.e., that on which the generated programs will eventually be
+run) with `--host=TYPE'. In this case, you should also specify the
+build platform with `--build=TYPE', because, in this case, it may not
+be possible to guess the build platform (it sometimes involves
+compiling and running simple test programs, and this can't be done if
+the compiler is a cross compiler).
+
+Sharing Defaults
+================
+
+ If you want to set default values for `configure' scripts to share,
+you can create a site shell script called `config.site' that gives
+default values for variables like `CC', `cache_file', and `prefix'.
+`configure' looks for `PREFIX/share/config.site' if it exists, then
+`PREFIX/etc/config.site' if it exists. Or, you can set the
+`CONFIG_SITE' environment variable to the location of the site script.
+A warning: not all `configure' scripts look for a site script.
+
+Environment Variables
+=====================
+
+ Variables not defined in a site shell script can be set in the
+environment passed to configure. However, some packages may run
+configure again during the build, and the customized values of these
+variables may be lost. In order to avoid this problem, you should set
+them in the `configure' command line, using `VAR=value'. For example:
+
+ ./configure CC=/usr/local2/bin/gcc
+
+will cause the specified gcc to be used as the C compiler (unless it is
+overridden in the site shell script).
+
+`configure' Invocation
+======================
+
+ `configure' recognizes the following options to control how it
+operates.
+
+`--help'
+`-h'
+ Print a summary of the options to `configure', and exit.
+
+`--version'
+`-V'
+ Print the version of Autoconf used to generate the `configure'
+ script, and exit.
+
+`--cache-file=FILE'
+ Enable the cache: use and save the results of the tests in FILE,
+ traditionally `config.cache'. FILE defaults to `/dev/null' to
+ disable caching.
+
+`--config-cache'
+`-C'
+ Alias for `--cache-file=config.cache'.
+
+`--quiet'
+`--silent'
+`-q'
+ Do not print messages saying which checks are being made. To
+ suppress all normal output, redirect it to `/dev/null' (any error
+ messages will still be shown).
+
+`--srcdir=DIR'
+ Look for the package's source code in directory DIR. Usually
+ `configure' can determine that directory automatically.
+
+`configure' also accepts some other, not widely useful, options. Run
+`configure --help' for more details.
+
--- /dev/null
+# Make gzip (GNU zip).
+
+## Copyright (C) 1999, 2001 Free Software Foundation
+
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2, or (at your option)
+## any later version.
+
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+## 02111-1307, USA.
+
+AUTOMAKE_OPTIONS = gnits dist-shar
+ACLOCAL_AMFLAGS = -I m4
+
+man_MANS = gunzip.1 gzexe.1 gzip.1 \
+ zcat.1 zcmp.1 zdiff.1 zforce.1 zgrep.1 zless.1 zmore.1 znew.1
+
+M4DIR = $(srcdir)/m4
+ACINCLUDE_INPUTS = $(M4DIR)/shell.m4
+
+EXTRA_DIST = $(ACINCLUDE_INPUTS) $(man_MANS) \
+ algorithm.doc amiga/match.a amiga/Makefile.gcc amiga/Makefile.sasc \
+ amiga/tailor.c amiga/utime.h atari/Makefile.st crypt.h getopt.h \
+ gzexe.in gzip.doc gzip.h lzw.h msdos/match.asm msdos/tailor.c \
+ msdos/gzip.prj msdos/doturboc.bat msdos/Makefile.msc msdos/Makefile.bor \
+ msdos/Makefile.djg nt/Makefile.nt os2/gzip.def os2/Makefile.os2 \
+ os2/gzip16.def primos/include/errno.h primos/include/fcntl.h \
+ primos/include/stdlib.h primos/include/sysStat.h \
+ primos/include/sysTypes.h primos/build.cpl primos/readme \
+ primos/primos.c primos/ci.opts revision.h sample/makecrc.c \
+ sample/ztouch sample/add.c sample/sub.c sample/zread.c sample/zfile \
+ tailor.h vms/Makefile.mms vms/gzip.hlp vms/vms.c vms/Readme.vms \
+ vms/Makefile.vms vms/Makefile.gcc vms/makegzip.com zdiff.in \
+ zforce.in zgrep.in zless.in zmore.in znew.in
+
+bin_PROGRAMS = gzip
+bin_SCRIPTS = gzexe zdiff zgrep zforce zless zmore znew
+gzip_SOURCES = \
+ bits.c crypt.c deflate.c getopt.c getopt1.c gzip.c inflate.c lzw.c \
+ trees.c unlzh.c unlzw.c unpack.c unzip.c util.c yesno.c zip.c
+gzip_LDADD = @LIBOBJS@
+
+info_TEXINFOS = gzip.texi
+
+ASCPP = @ASCPP@
+LN_S = @LN_S@
+
+match.$(OBJEXT): match.c
+ $(ASCPP) $(srcdir)/match.c >_match.s
+ $(CC) -c $(CFLAGS) _match.s
+ mv _match.$(OBJEXT) match.$(OBJEXT)
+ rm -f _match.s
+
+gzip.doc: gzip.1
+ groff -man -Tascii $(srcdir)/gzip.1 | col -b | uniq >$@
+
+SUFFIXES = .in
+.in:
+ sed \
+ -e '$(SEDCMD)' \
+ -e 's|/bin/sh|$(SHELL)|g' \
+ -e 's|BINDIR|$(bindir)|g' \
+ $(srcdir)/$@.in >$@
+ chmod a+x $@
+
+install-exec-hook: remove-installed-links
+ cd $(DESTDIR)$(bindir) && { ln gzip gunzip || $(LN_S) gzip gunzip; }
+ cd $(DESTDIR)$(bindir) && { ln gzip zcat || $(LN_S) gzip zcat ; }
+ cd $(DESTDIR)$(bindir) && { ln zdiff zcmp || $(LN_S) zdiff zcmp ; }
+ cd $(DESTDIR)$(bindir) && { ln zgrep zegrep || $(LN_S) zgrep zegrep; }
+ cd $(DESTDIR)$(bindir) && { ln zgrep zfgrep || $(LN_S) zgrep zfgrep; }
+
+uninstall-local: remove-installed-links
+
+remove-installed-links:
+ cd $(DESTDIR)$(bindir) && rm -f gunzip zcat zcmp zegrep zfgrep
+
+
+MAINTAINERCLEANFILES = gzip.doc
+
+MOSTLYCLEANFILES = _match.s gzexe zdiff zforce zgrep zless zmore znew
--- /dev/null
+# Makefile.in generated automatically by automake 1.5 from Makefile.am.
+
+# Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+# Free Software Foundation, Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Make gzip (GNU zip).
+
+SHELL = @SHELL@
+
+srcdir = @srcdir@
+top_srcdir = @top_srcdir@
+VPATH = @srcdir@
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+bindir = @bindir@
+sbindir = @sbindir@
+libexecdir = @libexecdir@
+datadir = @datadir@
+sysconfdir = @sysconfdir@
+sharedstatedir = @sharedstatedir@
+localstatedir = @localstatedir@
+libdir = @libdir@
+infodir = @infodir@
+mandir = @mandir@
+includedir = @includedir@
+oldincludedir = /usr/include
+pkgdatadir = $(datadir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+top_builddir = .
+
+ACLOCAL = @ACLOCAL@
+AUTOCONF = @AUTOCONF@
+AUTOMAKE = @AUTOMAKE@
+AUTOHEADER = @AUTOHEADER@
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = @program_transform_name@
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+AMTAR = @AMTAR@
+AWK = @AWK@
+CC = @CC@
+CFLAGS = @CFLAGS@
+DEPDIR = @DEPDIR@
+EXEEXT = @EXEEXT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LIBOBJS = @LIBOBJS@
+OBJEXT = @OBJEXT@
+PACKAGE = @PACKAGE@
+SEDCMD = @SEDCMD@
+VERSION = @VERSION@
+am__include = @am__include@
+am__quote = @am__quote@
+install_sh = @install_sh@
+
+ASCPP = @ASCPP@
+LN_S = @LN_S@
+
+AUTOMAKE_OPTIONS = gnits dist-shar
+ACLOCAL_AMFLAGS = -I m4
+
+man_MANS = gunzip.1 gzexe.1 gzip.1 \
+ zcat.1 zcmp.1 zdiff.1 zforce.1 zgrep.1 zless.1 zmore.1 znew.1
+
+
+M4DIR = $(srcdir)/m4
+ACINCLUDE_INPUTS = $(M4DIR)/shell.m4
+
+EXTRA_DIST = $(ACINCLUDE_INPUTS) $(man_MANS) \
+ algorithm.doc amiga/match.a amiga/Makefile.gcc amiga/Makefile.sasc \
+ amiga/tailor.c amiga/utime.h atari/Makefile.st crypt.h getopt.h \
+ gzexe.in gzip.doc gzip.h lzw.h msdos/match.asm msdos/tailor.c \
+ msdos/gzip.prj msdos/doturboc.bat msdos/Makefile.msc msdos/Makefile.bor \
+ msdos/Makefile.djg nt/Makefile.nt os2/gzip.def os2/Makefile.os2 \
+ os2/gzip16.def primos/include/errno.h primos/include/fcntl.h \
+ primos/include/stdlib.h primos/include/sysStat.h \
+ primos/include/sysTypes.h primos/build.cpl primos/readme \
+ primos/primos.c primos/ci.opts revision.h sample/makecrc.c \
+ sample/ztouch sample/add.c sample/sub.c sample/zread.c sample/zfile \
+ tailor.h vms/Makefile.mms vms/gzip.hlp vms/vms.c vms/Readme.vms \
+ vms/Makefile.vms vms/Makefile.gcc vms/makegzip.com zdiff.in \
+ zforce.in zgrep.in zless.in zmore.in znew.in
+
+
+bin_PROGRAMS = gzip
+bin_SCRIPTS = gzexe zdiff zgrep zforce zless zmore znew
+gzip_SOURCES = \
+ bits.c crypt.c deflate.c getopt.c getopt1.c gzip.c inflate.c lzw.c \
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+
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+
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+
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+
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+
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+mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
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+
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+ inflate.$(OBJEXT) lzw.$(OBJEXT) trees.$(OBJEXT) unlzh.$(OBJEXT) \
+ unlzw.$(OBJEXT) unpack.$(OBJEXT) unzip.$(OBJEXT) util.$(OBJEXT) \
+ yesno.$(OBJEXT) zip.$(OBJEXT)
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+ aclocal.m4 config.h.in configure configure.in depcomp \
+ install-sh match.c missing mkinstalldirs rpmatch.c texinfo.tex
+SOURCES = $(gzip_SOURCES)
+
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+ cd $(top_srcdir) && \
+ $(AUTOMAKE) --gnits Makefile
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+ cd $(top_builddir) && \
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+
+$(top_builddir)/config.status: $(srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
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+ cd $(srcdir) && $(AUTOCONF)
+
+$(ACLOCAL_M4): configure.in m4/shell.m4
+ cd $(srcdir) && $(ACLOCAL) $(ACLOCAL_AMFLAGS)
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+ @if test ! -f $@; then \
+ rm -f stamp-h; \
+ $(MAKE) stamp-h; \
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+ @rm -f stamp-h stamp-hT
+ @echo timestamp > stamp-hT 2> /dev/null
+ cd $(top_builddir) \
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+ $(SHELL) ./config.status
+ @mv stamp-hT stamp-h
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+ @if test ! -f $@; then \
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+ $(MAKE) $(srcdir)/./stamp-h.in; \
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+ @rm -f $(srcdir)/./stamp-h.in $(srcdir)/./stamp-h.inT
+ @echo timestamp > $(srcdir)/./stamp-h.inT 2> /dev/null
+ cd $(top_srcdir) && $(AUTOHEADER)
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+
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+top_distdir = .
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+REMOVE_DISTDIR = \
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+ || { find $(distdir) -type d ! -perm -200 -exec chmod u+w {} ';' \
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+ echo "NEWS not updated; not releasing" 1>&2; \
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+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-aminfo mostlyclean-compile \
+ mostlyclean-generic
+
+uninstall-am: uninstall-binPROGRAMS uninstall-binSCRIPTS \
+ uninstall-info-am uninstall-local uninstall-man
+
+uninstall-man: uninstall-man1
+
+.PHONY: GTAGS all all-am check check-am clean clean-binPROGRAMS \
+ clean-generic dist dist-all dist-info dist-shar distcheck \
+ distclean distclean-compile distclean-depend distclean-generic \
+ distclean-hdr distclean-tags distdir dvi dvi-am info info-am \
+ install install-am install-binPROGRAMS install-binSCRIPTS \
+ install-data install-data-am install-exec install-exec-am \
+ install-info install-info-am install-man install-man1 \
+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-aminfo \
+ maintainer-clean-generic mostlyclean mostlyclean-aminfo \
+ mostlyclean-compile mostlyclean-generic tags uninstall \
+ uninstall-am uninstall-binPROGRAMS uninstall-binSCRIPTS \
+ uninstall-info-am uninstall-local uninstall-man uninstall-man1
+
+
+match.$(OBJEXT): match.c
+ $(ASCPP) $(srcdir)/match.c >_match.s
+ $(CC) -c $(CFLAGS) _match.s
+ mv _match.$(OBJEXT) match.$(OBJEXT)
+ rm -f _match.s
+
+gzip.doc: gzip.1
+ groff -man -Tascii $(srcdir)/gzip.1 | col -b | uniq >$@
+.in:
+ sed \
+ -e '$(SEDCMD)' \
+ -e 's|/bin/sh|$(SHELL)|g' \
+ -e 's|BINDIR|$(bindir)|g' \
+ $(srcdir)/$@.in >$@
+ chmod a+x $@
+
+install-exec-hook: remove-installed-links
+ cd $(DESTDIR)$(bindir) && { ln gzip gunzip || $(LN_S) gzip gunzip; }
+ cd $(DESTDIR)$(bindir) && { ln gzip zcat || $(LN_S) gzip zcat ; }
+ cd $(DESTDIR)$(bindir) && { ln zdiff zcmp || $(LN_S) zdiff zcmp ; }
+ cd $(DESTDIR)$(bindir) && { ln zgrep zegrep || $(LN_S) zgrep zegrep; }
+ cd $(DESTDIR)$(bindir) && { ln zgrep zfgrep || $(LN_S) zgrep zfgrep; }
+
+uninstall-local: remove-installed-links
+
+remove-installed-links:
+ cd $(DESTDIR)$(bindir) && rm -f gunzip zcat zcmp zegrep zfgrep
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+Current Version: 1.3.2.
+See the file ChangeLog for the details of all changes.
+
+No major changes in 1.3.2
+
+Major changes from 1.3 to 1.3.1
+* zgrep now supports --, -H, -h, -L, -l, -C, -d, -m and their long equivalents.
+
+Major changes from 1.2.4 to 1.3
+* Add support for large files, e.g. files larger than 2 GB on Solaris 2.6.
+* Adjust file size listing format for files larger than 10 GB.
+* New command `zless'.
+* `zdiff' now reports exit status like `diff' does.
+* `zcat' is now always called `zcat', not `gzcat'.
+ Similarly for `zdiff', `zgrep', `zmore', `znew', `zforce'.
+* Warn about a compressed file's trailing zeros only if verbose,
+ for compatibility with recent versions of GNU tar.
+* Conform to changes to GNU makefile standards.
+* Port to Autoconf 2.13.
+* Convert to Automake.
+* Fix bugs in the following areas:
+ - files larger than 4 GB
+ - security hole involving symlinks from /tmp
+ - security hole involving long file names
+ - permissions bug when compressing a symbolic link to a file
+ - core dumps
+ - concatenated compressed files on INBUFSIZ boundaries
+ - porting bugs on hosts with signed chars
+ - porting bug with upper and lower case
+ - porting bug for hosts that reserve the names `basename' or `warning'
+
+Major changes from 1.2.3 to 1.2.4
+* By default, do not restore file name and timestamp from those saved
+ inside the .gz file (behave as 'compress'). Added the --name option
+ to force name and timestamp restoration.
+* Accept - as synonym for stdin.
+* Use manlinks=so or ln to support either hard links or .so in man pages
+* Accept foo.gz~ in zdiff.
+* Added support for Windows NT
+* Handle ENAMETOOLONG for strict Posix systems
+* Use --recursive instead of --recurse to comply with Webster and
+ the GNU stdandard.
+* Allow installation of shell scripts with a g prefix: make G=g install
+* Install by default zcat as gzcat if gzcat already exists in path.
+* Let zmore behave as more when invoked without parameters (give help)
+* Let gzip --list reject files not in gzip format even with --force.
+* Don't complain about non gzip files for options -rt or -rl.
+* Added advice in INSTALL for several systems.
+
+Major changes from 1.2.2 to 1.2.3
+* Don't display the output name when decompressing except with --verbose.
+* Remove usage of alloca in getopt.c and all makefiles.
+* Added the zfile shell script in subdirectory sample.
+* Moved the list of compiler bugs from README to INSTALL.
+* Added vms/Readme.vms.
+
+Major changes from 1.2.1 to 1.2.2
+* Fix a compilation error on Sun with cc (worked with gcc).
+
+Major changes from 1.2 to 1.2.1
+* Let zmore act as more if the data is not gzipped.
+* made gzexe more secure (don't rely on PATH).
+* By default, display output name only when the name was actually truncated.
+
+Major changes from 1.1.2 to 1.2
+* Added the --list option to display the file characteristics.
+* Added the --no-name option: do not save or restore original filename
+ Save the original name by default.
+* Allow gunzip --suffix "" to attempt decompression on any file
+ regardless of its extension if an original name is present.
+* Add support for the SCO compress -H format.
+* gzip --fast now compresses faster (speed close to that of compress)
+ with degraded compression ratio (but still better than compress).
+ Default level changed to -6 (acts exactly as previous level -5) to
+ be a better indication of its placement in the speed/ratio range.
+* Use smart name truncation: 123456789012.c -> 123456789.c.gz
+ instead of 12345678901.gz
+* With --force, let zcat pass non gzip'ed data unchanged (zcat == cat)
+* Added the zgrep shell script.
+* Made sub.c useful for 16 bit sound, 24 bit images, etc..
+* Supress warnings about suffix for gunzip -r, except with --verbose.
+* On MSDOS, use .gz extension when possible (files without extension)
+* Moved the sample programs to a subdirectory sample.
+* Added a "Special targets" section in INSTALL.
+
+Major changes from 1.1.1 to 1.1.2.
+* Fix serious bug for VMS (-gz not removed when decompressing).
+* Allow suffix other than .gz in znew.
+* Do not display compression ratio when decompressing stdin.
+* In zmore.in, work around brain damaged stty -g (Ultrix).
+* Display a correct compression ratio for .Z files.
+* Added .z to .gz renaming script in INTALL.
+* Allow setting CFLAGS in configure.
+
+Major changes from 1.1 to 1.1.1.
+* Fix serious bug in vms.c (affects Vax/VMS only).
+* Added --ascii option.
+* Add workaround in configure.in for Ultrix (quote eval argument)
+
+Major changes from 1.0.7 to 1.1.
+* Use .gz suffix by default, add --suffix option.
+* Let gunzip accept a "_z" suffix (used by one 'compress' on Vax/VMS).
+* Quit when reading garbage from stdin instead of reporting an error.
+* Added makefile for VAX/MMS and support for wildcards on VMS.
+* Added support for MSC under OS/2.
+* Added support for Prime/PRIMOS.
+* Display compression ratio also when decompressing (with --verbose).
+* Quit after --version (GNU standard)
+* Use --force to bypass isatty() check
+* Continue processing other files in case of recoverable error.
+* Added comparison of zip and gzip in the readme file.
+* Added small sample programs (ztouch, sub, add)
+* Use less memory when compiled with -DSMALL_MEM (for MSDOS).
+* Remove the "off by more than one minute" time stamp kludge
+
+Major changes from 1.0.6 to 1.0.7.
+* Allow zmore to read from standard input (like more).
+* Support the 68000 (Atari ST) in match.S.
+* Retry partial writes (required on Linux when gzip is suspended in a pipe).
+* Allow full pathnames and renamings in gzexe.
+* Don't let gzexe compress setuid executables or gzip itself.
+* Added vms/Makefile.gcc for gcc on the Vax.
+* Allow installation of binaries and shell scripts in different dirs.
+* Allows complex PAGER variable in zmore (e.g.: PAGER="col -x | more")
+* Allow installation of zcat as gzcat.
+* Several small changes for portability to old or weird systems.
+* Suppress help message and send compressed data to the terminal when
+ gzip is invoked without parameters and without redirection.
+* Add compile option GNU_STANDARD to respect the GNU coding standards:
+ with -DGNU_STANDARD, behave as gzip even if invoked under the name gunzip.
+(I don't like the last two changes, which were requested by the FSF.)
+
+Major changes from 1.0.5 to 1.0.6.
+* Let gzexe detect executables that are already gzexe'd.
+* Keep file attributes in znew and gzexe if cpmod is available.
+* Don't try restoring record format on VMS (1.0.5 did not work correctly)
+* Added asm version for 68000 in amiga/match.a.
+ Use asm version for Atari TT and NeXT.
+* For OS/2, assume HPFS by default, add flag OS2FAT if necessary.
+* Fixed some bugs in zdiff and define zcmp as a link to zdiff.
+
+
+Major changes from 1.0.4 to 1.0.5.
+* For VMS, restore the file type for variable record format, otherwise
+ extract in fixed length format (not perfect, but better than
+ forcing all files to be in stream_LF format).
+* For VMS, use "-z" default suffix and accept a version number in file names.
+* For Unix, allow compression of files with name ending in 'z'. Use only
+ .z, .*-z, .tgz, .taz as valid gzip extensions. In the last two cases,
+ extract to .tar by default.
+* On some versions of MSDOS, files with a 3 character extension could not
+ be compressed.
+* Garbage collect files in /tmp created by gzexe.
+* Fix the 'OS code' byte in the gzip header.
+* For the Amiga, add the missing utime.h and add support for gcc.
+
+
+Major changes from 1.0.3 to 1.0.4.
+* Added optimized asm version for 68020.
+* Add support for DJGPP.
+
+* Add support for the Atari ST.
+* Added zforce to rename gzip'ed files with truncated names.
+* Do not install with name uncompress (some systems rely on the
+ absence of any check in the old uncompress).
+* Added missing function (fcfree) in msdos/tailor.c
+* Let gunzip handle .tgz files, and let gzip skip them.
+* Added -d option (decompress) for gzexe and try preserving file permissions.
+* Suppress all warnings with -q.
+* Use GZIP_OPT for VMS to avoid conflict with program name.
+* ... and many other small changes (see ChangeLog)
+
+
+Major changes from 1.0.2 to 1.0.3
+* Added -K option for znew to keep old .Z files if smaller
+* Added -q option (quiet) to cancel -v in GZIP env variable.
+* Made gzexe safer on systems with filename limitation to 14 chars.
+* Fixed bugs in handling of GZIP env variable and incorrect free with Turbo C.
+
+
+Major changes from 1.0.1 to 1.0.2
+* Added env variable GZIP for default options. Example:
+ for sh: GZIP="-8 -v"; export GZIP
+ for csh: setenv GZIP "-8 -v"
+* Added support for the Amiga.
+* znew now keeps the old .Z if it is smaller than the .z file.
+ This can happen for some large and very redundant files.
+* Do not complain about trailing garbage for record oriented IO (Vax/VMS).
+ This implies however that multi-part gzip files are not supported
+ on such systems.
+* Added gzexe to compress rarely used executables.
+* Reduce memory usage (required for MSDOS and useful on all systems).
+* Preserve time stamp in znew -P (pipe option) if touch -r works.
+
+
+Major changes from 1.0 to 1.0.1
+* fix trivial errors in the Borland makefile (msdos/Makefile.bor)
+
+
+Major changes from 0.8.2 to 1.0
+* gzip now runs on Vax/VMS
+* gzip will not not overwrite files without -f when using /bin/sh in
+ background.
+* Support the test option -t for compressed (.Z) files.
+ Allow some data recovery for bad .Z files.
+* Added makefiles for MSDOS (Only tested for MSC, not Borland).
+* still more changes to configure for several systems
+
+
+Major changes from 0.8.1 to 0.8.2:
+* yet more changes to configure for Linux and other systems
+* Allow zcat on a file with multiple links.
+
+
+Major changes from 0.8 to 0.8.1:
+* znew has now a pipe option -P to reduce the disk space requirements,
+ but this option does not preserve timestamps.
+* Fixed some #if directives for compilation with TurboC.
+
+
+Major changes from 0.7 to 0.8:
+* gzip can now extract .z files created by 'pack'.
+* configure should no longer believe that every machine is a 386
+* Fix the entry for /etc/magic in INSTALL.
+* Add patch for GNU tar 1.11.1 and a pointer to crypt++.el
+* Uncompress files with multiple links only with -f.
+* Fix for uncompress of .Z files on 16-bit machines
+* Create a correct output name for file names of exactly N-1 chars when
+ the system has a limit of N chars.
+
+
+Major changes from 0.6 to 0.7:
+* Use "make check" instead of "make test".
+* Keep time stamp and pass options to gzip in znew.
+* Do not create .z.z files with gzip -r.
+* Allow again gunzip .zip files (was working in 0.5)
+* Allow again compilation with TurboC 2.0 (was working in 0.4)
+
+
+Major changes form 0.5 to 0.6:
+* gunzip reported an error when extracting certain .z files. The .z files
+ produced by gzip 0.5 are correct and can be read by gunzip 0.6.
+* gunzip now supports multiple compressed members within a single .z file.
+* Fix the check for i386 in configure.
+* Added "make test" to check for compiler bugs. (gcc -finline-functions
+ is broken at least on the NeXT.)
+* Use environment variable PAGER in zmore if it is defined.
+* Accept gzcat in addition to zcat for people having /usr/bin before
+ /usr/local/bin in their path.
+
+\f
+
+Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+Copyright (C) 1992, 1993 Jean-loup Gailly
+
+This file is part of GNU tar.
+
+GNU tar is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU tar is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with tar; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.
--- /dev/null
+This is the file README for the gzip distribution, test version 1.3.1.
+
+ Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1993 Jean-loup Gailly
+
+ This file is part of gzip (GNU zip).
+
+ gzip is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ gzip is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with tar; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+
+gzip (GNU zip) is a compression utility designed to be a replacement
+for 'compress'. Its main advantages over compress are much better
+compression and freedom from patented algorithms. The GNU Project
+uses it as the standard compression program for its system.
+
+gzip currently uses by default the LZ77 algorithm used in zip 1.9 (the
+portable pkzip compatible archiver). The gzip format was however
+designed to accommodate several compression algorithms. See below
+for a comparison of zip and gzip.
+
+gunzip can currently decompress files created by gzip, compress or
+pack. The detection of the input format is automatic. For the
+gzip format, gunzip checks a 32 bit CRC. For pack, gunzip checks the
+uncompressed length. The 'compress' format was not designed to allow
+consistency checks. However gunzip is sometimes able to detect a bad
+.Z file because there is some redundancy in the .Z compression format.
+If you get an error when uncompressing a .Z file, do not assume that
+the .Z file is correct simply because the standard uncompress does not
+complain. This generally means that the standard uncompress does not
+check its input, and happily generates garbage output.
+
+gzip produces files with a .gz extension. Previous versions of gzip
+used the .z extension, which was already used by the 'pack'
+Huffman encoder. gunzip is able to decompress .z files (packed
+or gzip'ed).
+
+Several planned features are not yet supported (see the file TODO).
+See the file NEWS for a summary of changes since 0.5. See the file
+INSTALL for installation instructions. Some answers to frequently
+asked questions are given in the file INSTALL, please read it. (In
+particular, please don't ask me once more for an /etc/magic entry.)
+
+WARNING: on several systems, compiler bugs cause gzip to fail, in
+particular when optimization options are on. See the section "Special
+targets" at the end of the INSTALL file for a list of known problems.
+For all machines, use "make check" to check that gzip was compiled
+correctly. Try compiling gzip without any optimization if you have a
+problem.
+
+Please send all comments and bug reports by electronic mail to
+<bug-gzip@gnu.org>.
+
+Bug reports should ideally include:
+
+ * The complete output of "gzip -V" (or the contents of revision.h
+ if you can't get gzip to compile)
+ * The hardware and operating system (try "uname -a")
+ * The compiler used to compile (if it is gcc, use "gcc -v")
+ * A description of the bug behavior
+ * The input to gzip, that triggered the bug
+
+If you send me patches for machines I don't have access to, please test them
+very carefully. gzip is used for backups, it must be extremely reliable.
+
+GNU tar 1.11.2 has a -z option to invoke directly gzip, so you don't have to
+patch it. The package ftp.uu.net:/languages/emacs-lisp/misc/jka-compr19.el.Z
+also supports gzip'ed files.
+
+The znew and gzexe shell scripts provided with gzip benefit from
+(but do not require) the cpmod utility to transfer file attributes.
+It is available in
+ftp://gatekeeper.dec.com/pub/usenet/comp.sources.unix/volume11/cpmod.Z.
+
+The sample programs zread.c, sub.c and add.c in subdirectory sample
+are provided as examples of useful complements to gzip. Read the
+comments inside each source file. The perl script ztouch is also
+provided as example (not installed by default since it relies on perl).
+
+
+gzip is free software, you can redistribute it and/or modify it under
+the terms of the GNU General Public License, a copy of which is
+provided under the name COPYING. The latest version of gzip are always
+available from ftp://ftp.gnu.org/gnu/gzip or in any of the gnu
+mirror sites.
+
+- sources in gzip-*.tar (or .shar or .tar.gz).
+- MSDOS lha self-extracting exe in gzip-msdos-*.exe. Once extracted,
+ copy gzip.exe to gunzip.exe and zcat.exe, or use "gzip -d" to decompress.
+ gzip386.exe runs much faster but only on 386 and above; it was compiled with
+ djgpp 1.10 available in directory omnigate.clarkson.edu:/pub/msdos/djgpp.
+
+A VMS executable is in ftp://ftp.spc.edu/[.macro32.savesets]gzip-1-*.zip
+(use [.macro32]unzip.exe to extract). A PRIMOS executable is available
+in ftp://ftp.lysator.liu.se/pub/primos/run/gzip.run.
+
+Some ftp servers can automatically make a tar.Z from a tar file. If
+you are getting gzip for the first time, you can ask for a tar.Z file
+instead of the much larger tar file.
+
+Many thanks to those who provided me with bug reports and feedback.
+See the files THANKS and ChangeLog for more details.
+
+
+ Note about zip vs. gzip:
+
+The name 'gzip' was a very unfortunate choice, because zip and gzip
+are two really different programs, although the actual compression and
+decompression sources were written by the same persons. A different
+name should have been used for gzip, but it is too late to change now.
+
+zip is an archiver: it compresses several files into a single archive
+file. gzip is a simple compressor: each file is compressed separately.
+Both share the same compression and decompression code for the
+'deflate' method. unzip can also decompress old zip archives
+(implode, shrink and reduce methods). gunzip can also decompress files
+created by compress and pack. zip 1.9 and gzip do not support
+compression methods other than deflation. (zip 1.0 supports shrink and
+implode). Better compression methods may be added in future versions
+of gzip. zip will always stick to absolute compatibility with pkzip,
+it is thus constrained by PKWare, which is a commercial company. The
+gzip header format is deliberately different from that of pkzip to
+avoid such a constraint.
+
+On Unix, gzip is mostly useful in combination with tar. GNU tar
+1.11.2 and later has a -z option to invoke gzip automatically. "tar -z"
+compresses better than zip, since gzip can then take advantage of
+redundancy between distinct files. The drawback is that you must
+scan the whole tar.gz file in order to extract a single file near
+the end; unzip can directly seek to the end of the zip file. There
+is no overhead when you extract the whole archive anyway.
+If a member of a .zip archive is damaged, other files can still
+be recovered. If a .tar.gz file is damaged, files beyond the failure
+point cannot be recovered. (Future versions of gzip will have
+error recovery features.)
+
+gzip and gunzip are distributed as a single program. zip and unzip
+are, for historical reasons, two separate programs, although the
+authors of these two programs work closely together in the info-zip
+team. zip and unzip are not associated with the GNU project.
+See http://www.cdrom.com/pub/infozip/ for more about zip and unzip.
--- /dev/null
+This is a test release of gzip.
+
+Please send comments and problem reports to <bug-gzip@gnu.org>.
+
+ Copyright (C) 2001 Free Software Foundation, Inc.
+
+ This file is part of GNU zip (gzip).
+
+ gzip is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ gzip is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with gzip; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+This release was built with GNU autoconf 2.52f, which you can get from:
+ftp://alpha.gnu.org/gnu/autoconf/autoconf-2.52f.tar.gz
+
+This release was built with GNU automake 1.5 patched as follows:
+
+2001-09-24 Paul Eggert <eggert@twinsun.com>
+
+ * m4/header.m4 (_AM_Config_Header_Index): Remove.
+ (AM_CONFIG_HEADER): Don't use it. It wasn't working, and was
+ causing needless rebuilds.
+
+2001-09-14 Paul Eggert <eggert@twinsun.com>
+
+ * lib/am/distdir.am (REMOVE_DISTDIR):
+ New macro. Do not change permission of non-directories.
+ (distdir, dist, dist-bzip2, dist-tarZ, dist-shar, dist-zip, dist-all,
+ distcheck): Use it.
+
+===================================================================
+RCS file: lib/am/distdir.am,v
+retrieving revision 1.5
+retrieving revision 1.5.0.1
+diff -pu -r1.5 -r1.5.0.1
+--- lib/am/distdir.am 2001/07/14 20:12:52 1.5
++++ lib/am/distdir.am 2001/09/15 05:12:18 1.5.0.1
+@@ -29,6 +29,11 @@ else !%?TOPDIR_P%
+ ?DISTDIR?distdir = $(top_distdir)/$(PACKAGE)-$(VERSION)
+ endif !%?TOPDIR_P%
+
++REMOVE_DISTDIR = \
++ { test ! -d $(distdir) \
++ || { find $(distdir) -type d ! -perm -200 -exec chmod u+w {} ';' \
++ && rm -fr $(distdir); }; }
++
+ distdir: $(DISTFILES)
+ ##
+ ## For Gnits users, this is pretty handy. Look at 15 lines
+@@ -47,7 +52,7 @@ endif %?TOPDIR_P%
+ ## Only for the top dir.
+ ##
+ if %?TOPDIR_P%
+- -chmod -R a+w $(distdir) >/dev/null 2>&1; rm -rf $(distdir)
++ $(REMOVE_DISTDIR)
+ mkdir $(distdir)
+ endif %?TOPDIR_P%
+ ##
+@@ -168,13 +173,13 @@ GZIP_ENV = --best
+ .PHONY: dist
+ dist: distdir
+ $(AMTAR) chof - $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+- -chmod -R a+w $(distdir) >/dev/null 2>&1; rm -rf $(distdir)
++ $(REMOVE_DISTDIR)
+
+ if %?BZIP2%
+ .PHONY: dist-bzip2
+ dist-bzip2: distdir
+ $(AMTAR) chof - $(distdir) | bzip2 -9 -c >$(distdir).tar.bz2
+- -chmod -R a+w $(distdir) >/dev/null 2>&1; rm -rf $(distdir)
++ $(REMOVE_DISTDIR)
+ endif %?BZIP2%
+
+
+@@ -182,7 +187,7 @@ if %?COMPRESS%
+ .PHONY: dist-tarZ
+ dist-tarZ: distdir
+ $(AMTAR) chof - $(distdir) | compress -c >$(distdir).tar.Z
+- -chmod -R a+w $(distdir) >/dev/null 2>&1; rm -rf $(distdir)
++ $(REMOVE_DISTDIR)
+ endif %?COMPRESS%
+
+
+@@ -190,7 +195,7 @@ if %?SHAR%
+ .PHONY: dist-shar
+ dist-shar: distdir
+ shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
+- -chmod -R a+w $(distdir) >/dev/null 2>&1; rm -rf $(distdir)
++ $(REMOVE_DISTDIR)
+ endif %?SHAR%
+
+
+@@ -199,7 +204,7 @@ if %?ZIP%
+ dist-zip: distdir
+ -rm -f $(distdir).zip
+ zip -rq $(distdir).zip $(distdir)
+- -chmod -R a+w $(distdir) >/dev/null 2>&1; rm -rf $(distdir)
++ $(REMOVE_DISTDIR)
+ endif %?ZIP%
+
+ endif %?TOPDIR_P%
+@@ -223,7 +228,7 @@ dist-all: distdir
+ ?SHAR? shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
+ ?ZIP? -rm -f $(distdir).zip
+ ?ZIP? zip -rq $(distdir).zip $(distdir)
+- -chmod -R a+w $(distdir) >/dev/null 2>&1; rm -rf $(distdir)
++ $(REMOVE_DISTDIR)
+
+ endif %?TOPDIR_P%
+
+@@ -239,8 +244,7 @@ if %?TOPDIR_P%
+ # tarfile.
+ .PHONY: distcheck
+ distcheck: dist
+-## Make sure we can remove distdir before trying to remove it.
+- -chmod -R a+w $(distdir) > /dev/null 2>&1; rm -rf $(distdir)
++ $(REMOVE_DISTDIR)
+ GZIP=$(GZIP_ENV) gunzip -c $(distdir).tar.gz | $(AMTAR) xf -
+ ## Make the new source tree read-only. Distributions ought to work in
+ ## this case. However, make the top-level directory writable so we
+@@ -273,7 +277,7 @@ distcheck: dist
+ && (test `find . -type f -print | wc -l` -eq 0 \
+ || (echo "Error: files left after distclean" 1>&2; \
+ exit 1) )
+- -chmod -R a+w $(distdir) > /dev/null 2>&1; rm -rf $(distdir)
++ $(REMOVE_DISTDIR)
+ @echo "$(distdir).tar.gz is ready for distribution" | \
+ sed 'h;s/./=/g;p;x;p;x'
+ endif %?TOPDIR_P%
+===================================================================
+RCS file: m4/header.m4,v
+retrieving revision 1.5
+retrieving revision 1.5.0.1
+diff -pu -r1.5 -r1.5.0.1
+--- m4/header.m4 2001/07/21 05:27:26 1.5
++++ m4/header.m4 2001/09/24 18:29:30 1.5.0.1
+@@ -11,18 +11,16 @@ AC_PREREQ([2.12])
+
+ AC_DEFUN([AM_CONFIG_HEADER],
+ [ifdef([AC_FOREACH],dnl
+- [dnl init our file count if it isn't already
+- m4_ifndef([_AM_Config_Header_Index], m4_define([_AM_Config_Header_Index], [0]))
++ [
+ dnl prepare to store our destination file list for use in config.status
+ AC_FOREACH([_AM_File], [$1],
+ [m4_pushdef([_AM_Dest], m4_patsubst(_AM_File, [:.*]))
+- m4_define([_AM_Config_Header_Index], m4_incr(_AM_Config_Header_Index))
+ dnl and add it to the list of files AC keeps track of, along
+ dnl with our hook
+ AC_CONFIG_HEADERS(_AM_File,
+ dnl COMMANDS, [, INIT-CMDS]
+ [# update the timestamp
+-echo timestamp >"AS_ESCAPE(_AM_DIRNAME(]_AM_Dest[))/stamp-h]_AM_Config_Header_Index["
++echo timestamp >"AS_ESCAPE(_AM_DIRNAME(]_AM_Dest[))/stamp-h"
+ ][$2]m4_ifval([$3], [, [$3]]))dnl AC_CONFIG_HEADERS
+ m4_popdef([_AM_Dest])])],dnl
+ [AC_CONFIG_HEADER([$1])
--- /dev/null
+gzip was written by Jean-loup Gailly <gzip@gnu.org>, with portions
+written by Mark Adler (inflate.c), Peter Jannesen (unlzw.c) and
+Haruhiko Okumura (unlzh.c). The zip deflate format was defined by Phil Katz.
+Thanks to those who reported problems and suggested various
+improvements. Here is a partial list of them:
+
+Robert Abramovitz bromo@cougar.tandem.com
+Jay Adams jka@ece.cmu.edu
+Mark Adler madler@cco.caltech.edu
+Edwin Allum edwin@csri.toronto.edu
+Joseph Arceneaux jla@gnu.ai.mit.edu
+Tim Auckland tda10@cus.cam.ac.uk
+Ken-ichiro Aoki aoki@madonna.physics.ucla.edu
+David Ascher da@marlowe.cog.brown.edu
+Eric Backus ericb@lsid.hp.com
+Becky A. Badgett badgett@cs.utexas.edu
+Bo Nygaard Bai bai@iesd.auc.dk
+Dave Barber dbarber@apocalypse.bbn.com
+Rene Beaulieu reneb@distri.hydro.qc.ca
+Neal Becker neal@ctd.comsat.com
+Dieter Becker becker@med-in.uni-sb.de
+Nelson H. F. Beebe beebe@geronimo.math.utah.edu
+Jeff Beadles jeff@onion.rain.com
+David J. N. Begley dbegley@st.nepean.uws.edu.au
+Bob Beresh rberesh@rd.hydro.on.ca
+Jim Bernard jbernard@iola.mines.colorado.edu
+Karl Berry karl@cs.umb.edu
+James W. Birdsall jwbirdsa@picarefy.picarefy.com
+Scott Bolte scott@craycos.com
+Wayne E. Bouchard web@paladine.hacks.arizona.edu
+Marc Boucher marc@cam.org
+Ola Brahammar pt90ob@pt.hk-r.se
+Dave Brennan brennan@hal.com
+Alan Brown dogbowl@dogbox.acme.gen.nz
+Michael L. Brown brown@wi.extrel.com
+Rodney Brown rdb@mel.cocam.oz.au
+Bruce bde@runx.oz.au
+Bill Bumgarner bbum@stone.com
+Leila Burrell-Davis leilabd@syma.sussex.ac.uk
+Roger Butenuth butenuth@ira.uka.de
+Jon Cargille jcargill@cs.wisc.edu
+Bud Carlson bud@isle.pegasus.com
+Lim Fung Chai fclim@i1sin.daq.semi.harris.com
+Wes Chalfant wes@kofax.com
+Andrew A. Chernov ache@astral.msk.su
+Paul Close pdc@lunch.wpd.sgi.com
+Jeff Coffler coffler@jac.enet.dec.com
+Will Colley wcc3@occs.cs.oberlin.edu
+Roger Cornelius sherpa!rac@uunet.uu.net
+Kevin Cosgrove kevinc@tekig6.pen.tek.com
+Stephen J Cowley s.j.cowley@amtp.cam.ac.uk
+Ron Cox roncox@indirect.com
+Frank Crawford frank@photon.ansto.gov.au
+James R. Crawford qralston@cislabs.pitt.edu
+Lawrence Crowl crowl@research.cs.orst.edu
+Klaus Dahlenburg kdburg@incoahe.hanse.de
+William E Davidsen davidsen@ariel.crd.ge.com
+John M. DeDourek dedourek@aixive2.cs.unb.ca
+Jeff Deifik jdeifik@isi.edu
+Vince DeMarco vince@whatnxt.cuc.ab.ca
+Michael De La Rue p91152@cplab.physics.edinburgh.ac.uk
+Jeff Delinck delinck@pa621a.inland.com
+John DeRoo deroo@grout.adv.shr.dec.com
+Jim Diamond zsd@axe.drea.dnd.ca
+Stefano Diomedi sd@teculx.tecsiel.it
+Lawrence R. Dodd dodd@roebling.poly.edu
+Matthew Donadio donadio@mxd120.rh.psu.edu
+Andy Dougherty andy@crystal.phys.lafayette.edu
+Darrell Duane dduane@mason1.gmu.edu
+John Eaton jwe@che.utexas.edu
+Will Edgington wedgingt@ptolemy.arc.nasa.gov
+Brian Edmonds edmonds@edmonds.home.cs.ubc.ca
+Paul Eggert eggert@twinsun.com
+Enami enami@sys.ptg.sony.co.jp
+Kristoffer Eriksson ske@pkmab.se
+Daniel Eriksson m91der@bellatrix.tdb.uu.se
+Rik Faith faith@cs.unc.edu
+Larry Fahnoe fahnoe@c1mpls.mn.org
+Cristian Ferretti cfs@poincare.mat.puc.cl
+Karl-Jose Filler pla_jfi@pki-nbg.philips.de
+Valery Fine fine@vxcern.cern.ch
+Bob Fischer bobf@milne.geology.yale.edu
+Per Foreby perf@efd.lth.se
+Alexander Fraser alex@cs.umb.edu
+Noah Friedman friedman@gnu.ai.mit.edu
+Bob Friesenhahn bfriesen@iphase.com
+Gerhard Friesland-Koepke frieslan@rzdspc3.informatik.uni-hamburg.de
+Andy Fyfe andy@scp.caltech.edu
+Geoff geoff@frs.faxon.com
+Arnd Gerns gerns@informatik.uni-hildesheim.de
+Kaveh R. Ghazi ghazi@staccato.rutgers.edu
+Torbjorn Granlund tege@sics.se
+Carl Greco cgreco@parrot.creighton.edu
+Bruno Haible haible@ma2s2.mathematik.uni-karlsruhe.de
+Junio Hamano junio@shadow.twinsun.com
+Harald Hanche-Olsen hanche@ams.sunysb.edu
+Darrel R. Hankerson hankedr@mail.auburn.edu
+Mark Hanning-Lee markhl@romeo.caltech.edu
+Lars Hecking st000002@hrz1.hrz.th-darmstadt.de
+Ruediger Helsch ruediger@ramz.ing.tu-bs.de
+Mark C. Henderson mch@sqwest.wimsey.bc.ca
+Karl Heuer karl@kelp.boston.ma.us
+Jarkko Hietaniemi jhi@dol-guldur.hut.fi
+Thomas Hiller hiller@fzi.de
+Eiji Hirai hirai@cc.swarthmore.edu
+Kjetil Torgrim Homme kjetilho@ifi.uio.no
+Robert D. Houk rdh@sli.com
+Jim Howard jim_howard@mentorg.com
+Preston Hunt gt5708a@prism.gatech.edu
+Shane C Hutchins sch@nymph.msel.unh.edu
+Hutch hutchinson@wrair-emh1.army.mil
+Lester Ingber ingber@alumni.caltech.edu
+Ken Ishii ishii@sni-usa.com
+Per Steinar Iversen iversen@vsfys1.fi.uib.no
+Chris Jacobsen jacobsen@xray1.physics.sunysb.edu
+Michal Jaegermann ntomczak@vm.ucs.ualberta.ca
+Brian Jones brianj@skat.usc.edu
+Denny de Jonge witaddj@dutrex.tudelft.nl
+Arne H. Juul arnej@lise.unit.no
+Dana Jacobsen jacobsd@solar.cor2.epa.gov
+Peter Jannesen peter@ncs.nl
+Brian D. Johnston johnstonb@med.ge.com
+Walter W. Jones wwj@candela.cfr.nist.gov
+Tom Judson judson@scf.usc.edu
+Henry G. Juengst juengst@saph2.physik.uni-bonn.de
+Sarantos Kapidakis sarantos%manteion@ics.forth.gr
+Amir J. Katz amir@matis.ingr.com
+Steve Kelem kelem@castor.xilinx.com
+Steven Kimball kimball@shrew.sanders.lockheed.com
+Randy Kirchhof rkk@posms.aus.tx.us
+Ned Kittlitz kittlitz@seagoon.sw.stratus.com
+Sakai Kiyotaka ksakai@mtl.t.u-tokyo.ac.jp
+Philip C Kizer pckizer@gonzo.tamu.edu
+Pete Klammer pklammer@ouray.denver.colorado.edu
+Fritz Kleemann kleemann@informatik.uni-wuerzburg.dbp.de
+Wilhelm B. Kloke wb@ifado.arb-phys.uni-dortmund.de
+Tom Kloos tk@sequent.com
+Carsten Koch carsten.koch@icem.de
+Winfried Koenig win@in.rhein-main.de
+Mathias Koerber mathias@solomon.technet.sg
+Steph Konigsdorfer s.konigsdorfer@frmy.bull.fr
+Leif Kornstaedt leif@rumtifsl.ruessel.sub.org
+Michael D. Lawler mdlawler@bsu-cs.bsu.edu
+Kevin Layer layer@franz.com
+Howard D. Leadmon howardl@wb3ffv.ampr.org
+Alexander Lehmann alex@hal.rhein-main.de
+Simon Leinen simon@lia.di.epfl.ch
+Burt Leland burt@molecular.com
+Tony Leneis tony@plaza.adp.ds.com
+Hugues Leroy hugues.leroy@irisa.fr
+Marty Leisner leisner@eso.mc.xerox.com
+Charles Levert charles@aramis.comm.polymtl.ca
+Richard Levitte levitte@e.kth.se
+Torbj|rn Lindh toobii@elixir.e.kth.se
+David R. Linn drl@vuse.vanderbilt.edu
+Antonio Lioy cat@athena.polito.it
+Jamie Lokier u90jl@ecs.oxford.ac.uk
+Richard Lloyd R.K.Lloyd@csc.liv.ac.uk
+David J. MacKenzie djm@eng.umd.edu
+John R MacMillan john@chance.gts.org
+Ron Male male@eso.mc.xerox.com
+Don R. Maszle maze@bea.lbl.gov
+Jaye Mathisen osyjm@cs.montana.edu
+Telly Mavroidis mavroidi@acf2.nyu.edu
+Imed Eddine Mbarki mbarki@pacific.cmpe.psu.edu
+Steeve McCauley steeve@pooh.geophys.mcgill.ca
+Tom McConnell tmcconne@sedona.intel.com
+Tod McQuillin mcquill@ccit05.duq.edu
+Tye McQueen tye@spillman.com
+Bernd Melchers melchers@chemie.fu-berlin.de
+Jason Merrill jason@jarthur.claremont.edu
+Dean S. Messing deanm@medulla.labs.tek.com
+M. Mesturino mesturino@cselt.stet.it
+Luke Mewburn zak@rmit.edu.au
+Jim Meyering meyering@cs.utexas.edu
+Dragan Milicic milicic@math.utah.edu
+Frederic Miserey none.fred@applelink.apple.com
+Marcel J.E. Mol marcel@duteca.et.tudelft.nl
+Soren Juul Moller sjm@dde.dk
+Chris Moore moore@src.bae.co.uk
+Dan Mosedale mosedale@genome.stanford.edu
+Helmut Muelner hmuelner@fiicmds04.tu-graz.ac.at
+Urban D Mueller umueller@amiga.physik.unizh.ch
+Ulrich Mueller ulm@vsnhdb.cern.ch
+Timothy Murphy tim@maths.tcd.ie
+Greg Naber greg@squally.halcyon.com
+Jay Nayegandhi jayng@bbiv02.enet.dec.com
+Paul K. Neville II pkn2@idsi.com
+Karl L. Noell noell@informatik.fh-wiesbaden.dbp.de
+Demizu Noritoshi nori-d@is.aist-nara.ac.jp
+Todd Ogasawara todd@protege.pegasus.com
+Helge Oldach helge.oldach@stollmann.de
+Arthur David Olson ado@elsie.nci.nih.gov
+Piet van Oostrum piet@cs.ruu.nl
+Rafael R. Pappalardo rafapa@obelix.cica.es
+Mike Pearlman canuck@masc38.rice.edu
+Yves Perrenoud pyves@nuga.alphanet.ch
+Hal Peterson hrp@pecan.cray.com
+Pascal Petit petit@cadillac.ibp.fr
+Bruno Pillard bp@chorus.fr
+Franc,ois Pinard pinard@iro.umontreal.ca
+Jay Pinkos pinkos@butyng.bu.edu
+Thomas Plass thomas@cogsci.ed.ac.uk
+Mike Polo mikep@cfsmo.honeywell.com
+Francesco Potorti pot@fly.cnuce.cnr.it
+Will Priest bpriest@lobby.ti.com
+David Purves purves@apogee.com
+Andreas Raab ar@nvmr.robin.de
+Eric S. Raymond esr@snark.thyrsus.com
+Klaus Reimann kr@cip.physik.uni-stuttgart.de
+Michael Rendell michael@mercury.cs.mun.ca
+Hal Render render@massive.uccs.edu
+Julian F. Reschke julian@math.uni-muenster.de
+Phil Richards Phil.Richards@prg.oxford.ac.uk
+Roland B Roberts roberts@nsrl31.nsrl.rochester.edu
+Arnold Robbins arnold@cc.gatech.edu
+Kevin Rodgers kevin@rolling-stone.den.mmc.com
+Kai Uwe Rommel rommel@informatik.tu-muenchen.de
+Paul Rubin phr@america.telebit.com
+Wolfgang Rupprecht wolfgang@wsrcc.com
+Jonathan Ryshpan jon@amito.hitachi.com
+Paul A Sand pas@unh.edu
+Tony Sanders sanders@bsdi.com
+Mike Sangrey mike@sojurn.lns.pa.us
+Niimi Satoshi a01309@cfi.waseda.ac.jp
+Marc Schaefer sysadm@alphanet.ch
+Andreas Schwab schwab@lamothe.informatik.uni-dortmund.de
+Eric Schenk schenk@cs.toronto.edu
+Eric P. Scott eps@cs.sfsu.edu
+Olaf Seibert rhialto@mbfys.kun.nl
+Sunando Sen sens@fasecon.econ.nyu.edu
+Harry Shamansky hts@hertz.eng.ohio-state.edu
+Amos Shapira amoss@cs.huji.ac.il
+Rick Sladkey jrs@world.std.com
+Daniel L Smith dls@autodesk.com
+Fred Smith fredex%fcshome@merk.merk.com
+Stephen Soliday soliday@ncat.edu
+Paul Southworth pauls@css.itd.umich.edu
+Rob Spencer robbie@winkle.bhpese.oz.au
+Richard Stallman rms@gnu.ai.mit.edu
+Carsten Steger carsten.steger@informatik.tu-muenchen.de
+David Sundstrom sunds@anon.asic.sc.ti.com
+Ed Sznyter ews@babel.babel.com
+Hideaki Tanabe arctanx@iyeyasu.ynl.t.u-tokyo.ac.jp
+Andrew Telford ajt@peregrin.resmel.bhp.com.au
+Glenn E. Thobe thobe@getunx.info.com
+Kei Thomsen kt@keihh.hanse.de
+Karsten Thygesen karthy@dannug.dk
+Mark Towfiq towfiq@microdyne.com
+Jeff Treece treece@sabbagh.com
+Oliver Trepte oliver@ikaros.fysik4.kth.se
+Stephane Tsacas slt@is21.isoft.fr
+Stephen Tweedie sct@dcs.ed.ac.uk
+John R. Vanderpool fish@daacdev1.stx.com
+Sotiris Vassilopoulos vassilopoulos@virginia.edu
+Pedro A. M. Vazquez vazquez@iqm.unicamp.br
+Arjan de Vet devet@win.tue.nl
+Larry W. Virden lvirden@cas.org
+Vadim V. Vlasov vvlasov@inucres.msk.su
+Eduard Vopicka eduard.vopicka@vse.cs
+Theo Vosse vosse@ruls41.leidenuniv.nl
+Darin Wayrynen darin@pcg.uucp
+Marcel Waldvogel marcel@nice.usergroup.ethz.ch
+Stephen J. Walick steve@nshore.org
+Gray Watson gray@antaire.com
+David Watt dmwatt@smersh.cambridge.ma.us
+Scott Weikart scott@igc.apc.org
+Ivo Welch iwelch@agsm.ucla.edu
+Jochen Wiedmann zrawi01@zmcipdec1.zdv.uni-tuebingen.de
+Gijsb. Wiesenekker wiesenecker@sara.nl
+Wietze van Winden wietze@swi.psy.uva.nl
+Frank Wuebbeling wuebbel@math.uni-muenster.de
+Larry W. Virden lwv26@cas.org
+Bill Wohler wohler@sap-ag.de
+Jamie Zawinski jwz@lucid.com
+Christos Zoulas christos@deshaw.com
--- /dev/null
+TODO file for gzip.
+
+ Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1993 Jean-loup Gailly
+
+ This file is part of gzip (GNU zip).
+
+ gzip is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ gzip is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with tar; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+
+
+Some of the planned features include:
+
+- Internationalize by using gettext and setlocale.
+
+- Structure the sources so that the compression and decompression code
+ form a library usable by any program, and write both gzip and zip on
+ top of this library. This would ideally be a reentrant (thread safe)
+ library, but this would degrade performance. In the meantime, you can
+ look at the sample program zread.c.
+
+ The library should have one mode in which compressed data is sent
+ as soon as input is available, instead of waiting for complete
+ blocks. This can be useful for sending compressed data to/from interactive
+ programs.
+
+- Make it convenient to define alternative user interfaces (in
+ particular for windowing environments).
+
+- Support in-memory compression for arbitrarily large amounts of data
+ (zip currently supports in-memory compression only for a single buffer.)
+
+- Map files in memory when possible, this is generally much faster
+ than read/write. (zip currently maps entire files at once, this
+ should be done in chunks to reduce memory usage.)
+
+- Add a super-fast compression method, suitable for implementing
+ file systems with transparent compression. One problem is that the
+ best candidate (lzrw1) is patented twice (Waterworth 4,701,745
+ and Gibson & Graybill 5,049,881). The lzrw series of algorithms
+ are available by ftp in ftp.adelaide.edu.au:/pub/compression/lzrw*.
+
+- Add a super-tight (but slow) compression method, suitable for long
+ term archives. One problem is that the best versions of arithmetic
+ coding are patented (4,286,256 4,295,125 4,463,342 4,467,317
+ 4,633,490 4,652,856 4,891,643 4,905,297 4,935,882 4,973,961
+ 5,023,611 5,025,258).
+
+ Note: I will introduce new compression methods only if they are
+ significantly better in either speed or compression ratio than the
+ existing method(s). So the total number of different methods should
+ reasonably not exceed 3. (The current 9 compression levels are just
+ tuning parameters for a single method, deflation.)
+
+- Add optional error correction. One problem is that the current version
+ of ecc cannot recover from inserted or missing bytes. It would be
+ nice to recover from the most common error (transfer of a binary
+ file in ascii mode).
+
+- Add a block size (-b) option to improve error recovery in case of
+ failure of a complete sector. Each block could be extracted
+ independently, but this reduces the compression ratio.
+
+ For one possible approach to this, please see:
+
+ http://www.samba.org/netfilter/diary/gzip.rsync.patch
+
+- Use a larger window size to deal with some large redundant files that
+ 'compress' currently handles better than gzip.
+
+- Implement the -e (encrypt) option.
+
+Send comments to <bug-gzip@gnu.org>.
--- /dev/null
+# aclocal.m4 generated automatically by aclocal 1.5
+
+# Copyright 1996, 1997, 1998, 1999, 2000, 2001
+# Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+# Do all the work for Automake. This macro actually does too much --
+# some checks are only needed if your package does certain things.
+# But this isn't really a big deal.
+
+# serial 5
+
+# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
+# written in clear, in which case automake, when reading aclocal.m4,
+# will think it sees a *use*, and therefore will trigger all it's
+# C support machinery. Also note that it means that autoscan, seeing
+# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
+
+
+# We require 2.13 because we rely on SHELL being computed by configure.
+AC_PREREQ([2.13])
+
+# AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)
+# -----------------------------------------------------------
+# If MACRO-NAME is provided do IF-PROVIDED, else IF-NOT-PROVIDED.
+# The purpose of this macro is to provide the user with a means to
+# check macros which are provided without letting her know how the
+# information is coded.
+# If this macro is not defined by Autoconf, define it here.
+ifdef([AC_PROVIDE_IFELSE],
+ [],
+ [define([AC_PROVIDE_IFELSE],
+ [ifdef([AC_PROVIDE_$1],
+ [$2], [$3])])])
+
+
+# AM_INIT_AUTOMAKE(PACKAGE,VERSION, [NO-DEFINE])
+# ----------------------------------------------
+AC_DEFUN([AM_INIT_AUTOMAKE],
+[AC_REQUIRE([AC_PROG_INSTALL])dnl
+# test to see if srcdir already configured
+if test "`CDPATH=:; cd $srcdir && pwd`" != "`pwd`" &&
+ test -f $srcdir/config.status; then
+ AC_MSG_ERROR([source directory already configured; run \"make distclean\" there first])
+fi
+
+# Define the identity of the package.
+PACKAGE=$1
+AC_SUBST(PACKAGE)dnl
+VERSION=$2
+AC_SUBST(VERSION)dnl
+ifelse([$3],,
+[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
+AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])
+
+# Autoconf 2.50 wants to disallow AM_ names. We explicitly allow
+# the ones we care about.
+ifdef([m4_pattern_allow],
+ [m4_pattern_allow([^AM_[A-Z]+FLAGS])])dnl
+
+# Autoconf 2.50 always computes EXEEXT. However we need to be
+# compatible with 2.13, for now. So we always define EXEEXT, but we
+# don't compute it.
+AC_SUBST(EXEEXT)
+# Similar for OBJEXT -- only we only use OBJEXT if the user actually
+# requests that it be used. This is a bit dumb.
+: ${OBJEXT=o}
+AC_SUBST(OBJEXT)
+
+# Some tools Automake needs.
+AC_REQUIRE([AM_SANITY_CHECK])dnl
+AC_REQUIRE([AC_ARG_PROGRAM])dnl
+AM_MISSING_PROG(ACLOCAL, aclocal)
+AM_MISSING_PROG(AUTOCONF, autoconf)
+AM_MISSING_PROG(AUTOMAKE, automake)
+AM_MISSING_PROG(AUTOHEADER, autoheader)
+AM_MISSING_PROG(MAKEINFO, makeinfo)
+AM_MISSING_PROG(AMTAR, tar)
+AM_PROG_INSTALL_SH
+AM_PROG_INSTALL_STRIP
+# We need awk for the "check" target. The system "awk" is bad on
+# some platforms.
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([AC_PROG_MAKE_SET])dnl
+AC_REQUIRE([AM_DEP_TRACK])dnl
+AC_REQUIRE([AM_SET_DEPDIR])dnl
+AC_PROVIDE_IFELSE([AC_PROG_][CC],
+ [_AM_DEPENDENCIES(CC)],
+ [define([AC_PROG_][CC],
+ defn([AC_PROG_][CC])[_AM_DEPENDENCIES(CC)])])dnl
+AC_PROVIDE_IFELSE([AC_PROG_][CXX],
+ [_AM_DEPENDENCIES(CXX)],
+ [define([AC_PROG_][CXX],
+ defn([AC_PROG_][CXX])[_AM_DEPENDENCIES(CXX)])])dnl
+])
+
+#
+# Check to make sure that the build environment is sane.
+#
+
+# serial 3
+
+# AM_SANITY_CHECK
+# ---------------
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments. Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+ set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+ if test "$[*]" = "X"; then
+ # -L didn't work.
+ set X `ls -t $srcdir/configure conftest.file`
+ fi
+ rm -f conftest.file
+ if test "$[*]" != "X $srcdir/configure conftest.file" \
+ && test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+ # If neither matched, then we have a broken ls. This can happen
+ # if, for instance, CONFIG_SHELL is bash and it inherits a
+ # broken ls alias from the environment. This has actually
+ # happened. Such a system could not be considered "sane".
+ AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
+alias in your environment])
+ fi
+
+ test "$[2]" = conftest.file
+ )
+then
+ # Ok.
+ :
+else
+ AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT(yes)])
+
+
+# serial 2
+
+# AM_MISSING_PROG(NAME, PROGRAM)
+# ------------------------------
+AC_DEFUN([AM_MISSING_PROG],
+[AC_REQUIRE([AM_MISSING_HAS_RUN])
+$1=${$1-"${am_missing_run}$2"}
+AC_SUBST($1)])
+
+
+# AM_MISSING_HAS_RUN
+# ------------------
+# Define MISSING if not defined so far and test if it supports --run.
+# If it does, set am_missing_run to use it, otherwise, to nothing.
+AC_DEFUN([AM_MISSING_HAS_RUN],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+ am_missing_run="$MISSING --run "
+else
+ am_missing_run=
+ am_backtick='`'
+ AC_MSG_WARN([${am_backtick}missing' script is too old or missing])
+fi
+])
+
+# AM_AUX_DIR_EXPAND
+
+# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
+# $ac_aux_dir to `$srcdir/foo'. In other projects, it is set to
+# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
+#
+# Of course, Automake must honor this variable whenever it calls a
+# tool from the auxiliary directory. The problem is that $srcdir (and
+# therefore $ac_aux_dir as well) can be either absolute or relative,
+# depending on how configure is run. This is pretty annoying, since
+# it makes $ac_aux_dir quite unusable in subdirectories: in the top
+# source directory, any form will work fine, but in subdirectories a
+# relative path needs to be adjusted first.
+#
+# $ac_aux_dir/missing
+# fails when called from a subdirectory if $ac_aux_dir is relative
+# $top_srcdir/$ac_aux_dir/missing
+# fails if $ac_aux_dir is absolute,
+# fails when called from a subdirectory in a VPATH build with
+# a relative $ac_aux_dir
+#
+# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
+# are both prefixed by $srcdir. In an in-source build this is usually
+# harmless because $srcdir is `.', but things will broke when you
+# start a VPATH build or use an absolute $srcdir.
+#
+# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
+# iff we strip the leading $srcdir from $ac_aux_dir. That would be:
+# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
+# and then we would define $MISSING as
+# MISSING="\${SHELL} $am_aux_dir/missing"
+# This will work as long as MISSING is not called from configure, because
+# unfortunately $(top_srcdir) has no meaning in configure.
+# However there are other variables, like CC, which are often used in
+# configure, and could therefore not use this "fixed" $ac_aux_dir.
+#
+# Another solution, used here, is to always expand $ac_aux_dir to an
+# absolute PATH. The drawback is that using absolute paths prevent a
+# configured tree to be moved without reconfiguration.
+
+AC_DEFUN([AM_AUX_DIR_EXPAND], [
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`CDPATH=:; cd $ac_aux_dir && pwd`
+])
+
+# AM_PROG_INSTALL_SH
+# ------------------
+# Define $install_sh.
+AC_DEFUN([AM_PROG_INSTALL_SH],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+install_sh=${install_sh-"$am_aux_dir/install-sh"}
+AC_SUBST(install_sh)])
+
+# One issue with vendor `install' (even GNU) is that you can't
+# specify the program used to strip binaries. This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in `make install-strip', and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# serial 4 -*- Autoconf -*-
+
+
+
+# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
+# written in clear, in which case automake, when reading aclocal.m4,
+# will think it sees a *use*, and therefore will trigger all it's
+# C support machinery. Also note that it means that autoscan, seeing
+# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
+
+
+
+# _AM_DEPENDENCIES(NAME)
+# ---------------------
+# See how the compiler implements dependency checking.
+# NAME is "CC", "CXX" or "OBJC".
+# We try a few techniques and use that to set a single cache variable.
+#
+# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
+# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
+# dependency, and given that the user is not expected to run this macro,
+# just rely on AC_PROG_CC.
+AC_DEFUN([_AM_DEPENDENCIES],
+[AC_REQUIRE([AM_SET_DEPDIR])dnl
+AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
+AC_REQUIRE([AM_MAKE_INCLUDE])dnl
+AC_REQUIRE([AM_DEP_TRACK])dnl
+
+ifelse([$1], CC, [depcc="$CC" am_compiler_list=],
+ [$1], CXX, [depcc="$CXX" am_compiler_list=],
+ [$1], OBJC, [depcc="$OBJC" am_compiler_list='gcc3 gcc']
+ [$1], GCJ, [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
+ [depcc="$$1" am_compiler_list=])
+
+AC_CACHE_CHECK([dependency style of $depcc],
+ [am_cv_$1_dependencies_compiler_type],
+[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+ # We make a subdir and do the tests there. Otherwise we can end up
+ # making bogus files that we don't know about and never remove. For
+ # instance it was reported that on HP-UX the gcc test will end up
+ # making a dummy file named `D' -- because `-MD' means `put the output
+ # in D'.
+ mkdir conftest.dir
+ # Copy depcomp to subdir because otherwise we won't find it if we're
+ # using a relative directory.
+ cp "$am_depcomp" conftest.dir
+ cd conftest.dir
+
+ am_cv_$1_dependencies_compiler_type=none
+ if test "$am_compiler_list" = ""; then
+ am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
+ fi
+ for depmode in $am_compiler_list; do
+ # We need to recreate these files for each test, as the compiler may
+ # overwrite some of them when testing with obscure command lines.
+ # This happens at least with the AIX C compiler.
+ echo '#include "conftest.h"' > conftest.c
+ echo 'int i;' > conftest.h
+ echo "${am__include} ${am__quote}conftest.Po${am__quote}" > confmf
+
+ case $depmode in
+ nosideeffect)
+ # after this tag, mechanisms are not by side-effect, so they'll
+ # only be used when explicitly requested
+ if test "x$enable_dependency_tracking" = xyes; then
+ continue
+ else
+ break
+ fi
+ ;;
+ none) break ;;
+ esac
+ # We check with `-c' and `-o' for the sake of the "dashmstdout"
+ # mode. It turns out that the SunPro C++ compiler does not properly
+ # handle `-M -o', and we need to detect this.
+ if depmode=$depmode \
+ source=conftest.c object=conftest.o \
+ depfile=conftest.Po tmpdepfile=conftest.TPo \
+ $SHELL ./depcomp $depcc -c conftest.c -o conftest.o >/dev/null 2>&1 &&
+ grep conftest.h conftest.Po > /dev/null 2>&1 &&
+ ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+ am_cv_$1_dependencies_compiler_type=$depmode
+ break
+ fi
+ done
+
+ cd ..
+ rm -rf conftest.dir
+else
+ am_cv_$1_dependencies_compiler_type=none
+fi
+])
+$1DEPMODE="depmode=$am_cv_$1_dependencies_compiler_type"
+AC_SUBST([$1DEPMODE])
+])
+
+
+# AM_SET_DEPDIR
+# -------------
+# Choose a directory name for dependency files.
+# This macro is AC_REQUIREd in _AM_DEPENDENCIES
+AC_DEFUN([AM_SET_DEPDIR],
+[rm -f .deps 2>/dev/null
+mkdir .deps 2>/dev/null
+if test -d .deps; then
+ DEPDIR=.deps
+else
+ # MS-DOS does not allow filenames that begin with a dot.
+ DEPDIR=_deps
+fi
+rmdir .deps 2>/dev/null
+AC_SUBST(DEPDIR)
+])
+
+
+# AM_DEP_TRACK
+# ------------
+AC_DEFUN([AM_DEP_TRACK],
+[AC_ARG_ENABLE(dependency-tracking,
+[ --disable-dependency-tracking Speeds up one-time builds
+ --enable-dependency-tracking Do not reject slow dependency extractors])
+if test "x$enable_dependency_tracking" != xno; then
+ am_depcomp="$ac_aux_dir/depcomp"
+ AMDEPBACKSLASH='\'
+fi
+AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
+pushdef([subst], defn([AC_SUBST]))
+subst(AMDEPBACKSLASH)
+popdef([subst])
+])
+
+# Generate code to set up dependency tracking.
+# This macro should only be invoked once -- use via AC_REQUIRE.
+# Usage:
+# AM_OUTPUT_DEPENDENCY_COMMANDS
+
+#
+# This code is only required when automatic dependency tracking
+# is enabled. FIXME. This creates each `.P' file that we will
+# need in order to bootstrap the dependency handling code.
+AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],[
+AC_OUTPUT_COMMANDS([
+test x"$AMDEP_TRUE" != x"" ||
+for mf in $CONFIG_FILES; do
+ case "$mf" in
+ Makefile) dirpart=.;;
+ */Makefile) dirpart=`echo "$mf" | sed -e 's|/[^/]*$||'`;;
+ *) continue;;
+ esac
+ grep '^DEP_FILES *= *[^ #]' < "$mf" > /dev/null || continue
+ # Extract the definition of DEP_FILES from the Makefile without
+ # running `make'.
+ DEPDIR=`sed -n -e '/^DEPDIR = / s///p' < "$mf"`
+ test -z "$DEPDIR" && continue
+ # When using ansi2knr, U may be empty or an underscore; expand it
+ U=`sed -n -e '/^U = / s///p' < "$mf"`
+ test -d "$dirpart/$DEPDIR" || mkdir "$dirpart/$DEPDIR"
+ # We invoke sed twice because it is the simplest approach to
+ # changing $(DEPDIR) to its actual value in the expansion.
+ for file in `sed -n -e '
+ /^DEP_FILES = .*\\\\$/ {
+ s/^DEP_FILES = //
+ :loop
+ s/\\\\$//
+ p
+ n
+ /\\\\$/ b loop
+ p
+ }
+ /^DEP_FILES = / s/^DEP_FILES = //p' < "$mf" | \
+ sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+ # Make sure the directory exists.
+ test -f "$dirpart/$file" && continue
+ fdir=`echo "$file" | sed -e 's|/[^/]*$||'`
+ $ac_aux_dir/mkinstalldirs "$dirpart/$fdir" > /dev/null 2>&1
+ # echo "creating $dirpart/$file"
+ echo '# dummy' > "$dirpart/$file"
+ done
+done
+], [AMDEP_TRUE="$AMDEP_TRUE"
+ac_aux_dir="$ac_aux_dir"])])
+
+# AM_MAKE_INCLUDE()
+# -----------------
+# Check to see how make treats includes.
+AC_DEFUN([AM_MAKE_INCLUDE],
+[am_make=${MAKE-make}
+cat > confinc << 'END'
+doit:
+ @echo done
+END
+# If we don't find an include directive, just comment out the code.
+AC_MSG_CHECKING([for style of include used by $am_make])
+am__include='#'
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# We grep out `Entering directory' and `Leaving directory'
+# messages which can occur if `w' ends up in MAKEFLAGS.
+# In particular we don't look at `^make:' because GNU make might
+# be invoked under some other name (usually "gmake"), in which
+# case it prints its new name instead of `make'.
+if test "`$am_make -s -f confmf 2> /dev/null | fgrep -v 'ing directory'`" = "done"; then
+ am__include=include
+ am__quote=
+ _am_result=GNU
+fi
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+ echo '.include "confinc"' > confmf
+ if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
+ am__include=.include
+ am__quote='"'
+ _am_result=BSD
+ fi
+fi
+AC_SUBST(am__include)
+AC_SUBST(am__quote)
+AC_MSG_RESULT($_am_result)
+rm -f confinc confmf
+])
+
+# serial 3
+
+# AM_CONDITIONAL(NAME, SHELL-CONDITION)
+# -------------------------------------
+# Define a conditional.
+#
+# FIXME: Once using 2.50, use this:
+# m4_match([$1], [^TRUE\|FALSE$], [AC_FATAL([$0: invalid condition: $1])])dnl
+AC_DEFUN([AM_CONDITIONAL],
+[ifelse([$1], [TRUE],
+ [errprint(__file__:__line__: [$0: invalid condition: $1
+])dnl
+m4exit(1)])dnl
+ifelse([$1], [FALSE],
+ [errprint(__file__:__line__: [$0: invalid condition: $1
+])dnl
+m4exit(1)])dnl
+AC_SUBST([$1_TRUE])
+AC_SUBST([$1_FALSE])
+if $2; then
+ $1_TRUE=
+ $1_FALSE='#'
+else
+ $1_TRUE='#'
+ $1_FALSE=
+fi])
+
+# Like AC_CONFIG_HEADER, but automatically create stamp file.
+
+# serial 3
+
+# When config.status generates a header, we must update the stamp-h file.
+# This file resides in the same directory as the config header
+# that is generated. We must strip everything past the first ":",
+# and everything past the last "/".
+
+AC_PREREQ([2.12])
+
+AC_DEFUN([AM_CONFIG_HEADER],
+[ifdef([AC_FOREACH],dnl
+ [
+ dnl prepare to store our destination file list for use in config.status
+ AC_FOREACH([_AM_File], [$1],
+ [m4_pushdef([_AM_Dest], m4_patsubst(_AM_File, [:.*]))
+ dnl and add it to the list of files AC keeps track of, along
+ dnl with our hook
+ AC_CONFIG_HEADERS(_AM_File,
+dnl COMMANDS, [, INIT-CMDS]
+[# update the timestamp
+echo timestamp >"AS_ESCAPE(_AM_DIRNAME(]_AM_Dest[))/stamp-h"
+][$2]m4_ifval([$3], [, [$3]]))dnl AC_CONFIG_HEADERS
+ m4_popdef([_AM_Dest])])],dnl
+[AC_CONFIG_HEADER([$1])
+ AC_OUTPUT_COMMANDS(
+ ifelse(patsubst([$1], [[^ ]], []),
+ [],
+ [test -z "$CONFIG_HEADERS" || echo timestamp >dnl
+ patsubst([$1], [^\([^:]*/\)?.*], [\1])stamp-h]),dnl
+[am_indx=1
+for am_file in $1; do
+ case " \$CONFIG_HEADERS " in
+ *" \$am_file "*)
+ am_dir=\`echo \$am_file |sed 's%:.*%%;s%[^/]*\$%%'\`
+ if test -n "\$am_dir"; then
+ am_tmpdir=\`echo \$am_dir |sed 's%^\(/*\).*\$%\1%'\`
+ for am_subdir in \`echo \$am_dir |sed 's%/% %'\`; do
+ am_tmpdir=\$am_tmpdir\$am_subdir/
+ if test ! -d \$am_tmpdir; then
+ mkdir \$am_tmpdir
+ fi
+ done
+ fi
+ echo timestamp > "\$am_dir"stamp-h\$am_indx
+ ;;
+ esac
+ am_indx=\`expr \$am_indx + 1\`
+done])
+])]) # AM_CONFIG_HEADER
+
+# _AM_DIRNAME(PATH)
+# -----------------
+# Like AS_DIRNAME, only do it during macro expansion
+AC_DEFUN([_AM_DIRNAME],
+ [m4_if(m4_regexp([$1], [^.*[^/]//*[^/][^/]*/*$]), -1,
+ m4_if(m4_regexp([$1], [^//\([^/]\|$\)]), -1,
+ m4_if(m4_regexp([$1], [^/.*]), -1,
+ [.],
+ m4_patsubst([$1], [^\(/\).*], [\1])),
+ m4_patsubst([$1], [^\(//\)\([^/].*\|$\)], [\1])),
+ m4_patsubst([$1], [^\(.*[^/]\)//*[^/][^/]*/*$], [\1]))[]dnl
+]) # _AM_DIRNAME
+
+#serial 4
+
+# AC_PROG_SHELL
+# -------------
+# Check for a working (i.e. POSIX-compatible) shell.
+# Written by Paul Eggert <eggert@twinsun.com>,
+# from an idea suggested by Albert Chin-A-Young <china@thewrittenword.com>.
+AC_DEFUN([AC_PROG_SHELL],
+ [AC_MSG_CHECKING([for a POSIX-compliant shell])
+ AC_CACHE_VAL(ac_cv_path_shell,
+ [ac_command='
+ # Test the noclobber option, using the portable POSIX.2 syntax.
+ set -C
+ rm -f conftest.c
+ >conftest.c || exit
+ >|conftest.c || exit
+ !>conftest.c || exit
+ '
+ ac_cv_path_shell=no
+
+ case $SHELL in
+ /*)
+ rm -f conftest.c
+ if ("$SHELL" -c "$ac_command") 2>/dev/null; then
+ ac_cv_path_shell=$SHELL
+ fi;;
+ esac
+
+ case $ac_cv_path_shell in
+ no)
+ # Prefer shells that are more likely to be installed in the
+ # same place on all hosts of this platform. Therefore, prefer
+ # shells in /bin and /usr/bin to shells in the installer's
+ # PATH. Also, loop through PATH first and then through
+ # shells, since less-"nice" shells in /bin and /usr/bin are
+ # more likely to be installed than "nicer" shells elsewhere.
+ as_save_IFS=$IFS; IFS=:
+ for as_dir in /bin /usr/bin $PATH
+ do
+ IFS=$as_save_IFS
+ case $as_dir in
+ /*)
+ for ac_base in sh bash ksh sh5; do
+ rm -f conftest.c
+ if ("$as_dir/$ac_base" -c "$ac_command") 2>/dev/null; then
+ ac_cv_path_shell=$as_dir/$ac_base
+ break
+ fi
+ done
+ case $ac_cv_path_shell in
+ /*) break;;
+ esac;;
+ esac
+ done
+ rm -f conftest.c;;
+ esac])
+ AC_MSG_RESULT($ac_cv_path_shell)
+ SHELL=$ac_cv_path_shell
+ if test "$SHELL" = no; then
+ SHELL=/bin/sh
+ AC_MSG_WARN([using $SHELL, even though it does not conform to POSIX])
+ fi
+ AC_SUBST(SHELL)])
+
--- /dev/null
+1. Algorithm
+
+The deflation algorithm used by zip and gzip is a variation of LZ77
+(Lempel-Ziv 1977, see reference below). It finds duplicated strings in
+the input data. The second occurrence of a string is replaced by a
+pointer to the previous string, in the form of a pair (distance,
+length). Distances are limited to 32K bytes, and lengths are limited
+to 258 bytes. When a string does not occur anywhere in the previous
+32K bytes, it is emitted as a sequence of literal bytes. (In this
+description, 'string' must be taken as an arbitrary sequence of bytes,
+and is not restricted to printable characters.)
+
+Literals or match lengths are compressed with one Huffman tree, and
+match distances are compressed with another tree. The trees are stored
+in a compact form at the start of each block. The blocks can have any
+size (except that the compressed data for one block must fit in
+available memory). A block is terminated when zip determines that it
+would be useful to start another block with fresh trees. (This is
+somewhat similar to compress.)
+
+Duplicated strings are found using a hash table. All input strings of
+length 3 are inserted in the hash table. A hash index is computed for
+the next 3 bytes. If the hash chain for this index is not empty, all
+strings in the chain are compared with the current input string, and
+the longest match is selected.
+
+The hash chains are searched starting with the most recent strings, to
+favor small distances and thus take advantage of the Huffman encoding.
+The hash chains are singly linked. There are no deletions from the
+hash chains, the algorithm simply discards matches that are too old.
+
+To avoid a worst-case situation, very long hash chains are arbitrarily
+truncated at a certain length, determined by a runtime option (zip -1
+to -9). So zip does not always find the longest possible match but
+generally finds a match which is long enough.
+
+zip also defers the selection of matches with a lazy evaluation
+mechanism. After a match of length N has been found, zip searches for a
+longer match at the next input byte. If a longer match is found, the
+previous match is truncated to a length of one (thus producing a single
+literal byte) and the longer match is emitted afterwards. Otherwise,
+the original match is kept, and the next match search is attempted only
+N steps later.
+
+The lazy match evaluation is also subject to a runtime parameter. If
+the current match is long enough, zip reduces the search for a longer
+match, thus speeding up the whole process. If compression ratio is more
+important than speed, zip attempts a complete second search even if
+the first match is already long enough.
+
+The lazy match evaluation is not performed for the fastest compression
+modes (speed options -1 to -3). For these fast modes, new strings
+are inserted in the hash table only when no match was found, or
+when the match is not too long. This degrades the compression ratio
+but saves time since there are both fewer insertions and fewer searches.
+
+
+2. gzip file format
+
+The pkzip format imposes a lot of overhead in various headers, which
+are useful for an archiver but not necessary when only one file is
+compressed. gzip uses a much simpler structure. Numbers are in little
+endian format, and bit 0 is the least significant bit.
+A gzip file is a sequence of compressed members. Each member has the
+following structure:
+
+2 bytes magic header 0x1f, 0x8b (\037 \213)
+1 byte compression method (0..7 reserved, 8 = deflate)
+1 byte flags
+ bit 0 set: file probably ascii text
+ bit 1 set: continuation of multi-part gzip file
+ bit 2 set: extra field present
+ bit 3 set: original file name present
+ bit 4 set: file comment present
+ bit 5 set: file is encrypted
+ bit 6,7: reserved
+4 bytes file modification time in Unix format
+1 byte extra flags (depend on compression method)
+1 byte operating system on which compression took place
+
+2 bytes optional part number (second part=1)
+2 bytes optional extra field length
+? bytes optional extra field
+? bytes optional original file name, zero terminated
+? bytes optional file comment, zero terminated
+12 bytes optional encryption header
+? bytes compressed data
+4 bytes crc32
+4 bytes uncompressed input size modulo 2^32
+
+The format was designed to allow single pass compression without any
+backwards seek, and without a priori knowledge of the uncompressed
+input size or the available size on the output media. If input does
+not come from a regular disk file, the file modification time is set
+to the time at which compression started.
+
+The time stamp is useful mainly when one gzip file is transferred over
+a network. In this case it would not help to keep ownership
+attributes. In the local case, the ownership attributes are preserved
+by gzip when compressing/decompressing the file. A time stamp of zero
+is ignored.
+
+Bit 0 in the flags is only an optional indication, which can be set by
+a small lookahead in the input data. In case of doubt, the flag is
+cleared indicating binary data. For systems which have different
+file formats for ascii text and binary data, the decompressor can
+use the flag to choose the appropriate format.
+
+The extra field, if present, must consist of one or more subfields,
+each with the following format:
+
+ subfield id : 2 bytes
+ subfield size : 2 bytes (little-endian format)
+ subfield data
+
+The subfield id can consist of two letters with some mnemonic value.
+Please send any such id to <gzip@gnu.org>. Ids with a zero second
+byte are reserved for future use. The following ids are defined:
+
+ Ap (0x41, 0x70) : Apollo file type information
+
+The subfield size is the size of the subfield data and does not
+include the id and the size itself. The field 'extra field length' is
+the total size of the extra field, including subfield ids and sizes.
+
+It must be possible to detect the end of the compressed data with any
+compression format, regardless of the actual size of the compressed
+data. If the compressed data cannot fit in one file (in particular for
+diskettes), each part starts with a header as described above, but
+only the last part has the crc32 and uncompressed size. A decompressor
+may prompt for additional data for multipart compressed files. It is
+desirable but not mandatory that multiple parts be extractable
+independently so that partial data can be recovered if one of the
+parts is damaged. This is possible only if no compression state is
+kept from one part to the other. The compression-type dependent flags
+can indicate this.
+
+If the file being compressed is on a file system with case insensitive
+names, the original name field must be forced to lower case. There is
+no original file name if the data was compressed from standard input.
+
+Compression is always performed, even if the compressed file is
+slightly larger than the original. The worst case expansion is
+a few bytes for the gzip file header, plus 5 bytes every 32K block,
+or an expansion ratio of 0.015% for large files. Note that the actual
+number of used disk blocks almost never increases.
+
+The encryption is that of zip 1.9. For the encryption check, the
+last byte of the decoded encryption header must be zero. The time
+stamp of an encrypted file might be set to zero to avoid giving a clue
+about the construction of the random header.
+
+Jean-loup Gailly
+gzip@gnu.org
+
+References:
+
+[LZ77] Ziv J., Lempel A., "A Universal Algorithm for Sequential Data
+Compression", IEEE Transactions on Information Theory", Vol. 23, No. 3,
+pp. 337-343.
+
+APPNOTE.TXT documentation file in PKZIP 1.93a. It is available by
+ftp in ftp.cso.uiuc.edu:/pc/exec-pc/pkz193a.exe [128.174.5.59]
+Use "unzip pkz193a.exe APPNOTE.TXT" to extract (note: unzip, not gunzip).
--- /dev/null
+# Makefile for gzip (GNU zip) -*- Indented-Text -*-
+# Copyright (C) 1992-1993 Jean-loup Gailly and the Free Software Foundation
+
+# Amiga GCC version, written by Preston Hunt <gt5708a@prism.gatech.edu>
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+CC = gcc
+CPP = cpp
+
+CFLAGS = -m68020 -m68881 -O2
+#CFLAGS = -m68000 -O2
+#for the 68000, set below: OBJA=
+CPPFLAGS = -Dmc68020
+LDFLAGS =
+O = .o
+
+SRCS = gzip.c zip.c deflate.c trees.c bits.c unzip.c inflate.c util.c crypt.c\
+ lzw.c unlzw.c unpack.c unlzh.c makecrc.c getopt.c match.S
+
+OBJA = match$O
+
+OBJS = gzip$O zip$O deflate$O trees$O bits$O unzip$O inflate$O util$O \
+ crypt$O lzw$O unlzw$O unpack$O unlzh$O getopt$O match$O
+
+HDRS = gzip.h lzw.h tailor.h revision.h crypt.h getopt.h
+
+.c.o:
+ $(CC) -c $(DEFS) $(CFLAGS) $<
+
+.PHONY: default all
+all: gzip
+
+gzip: $(OBJS)
+ $(CC) $(LDFLAGS) -o $@ $(OBJS) $(LIBS)
+
+gzip$O zip$O deflate$O trees$O bits$O unzip$O inflate$O: gzip.h tailor.h
+util$O lzw$O unlzw$O unpack$O unlzh$O crypt$O: gzip.h tailor.h
+
+gzip$O unlzw$O: revision.h lzw.h
+
+bits$O unzip$O util$O zip$O: crypt.h
+
+gzip$O getopt$O: getopt.h
+
+match$O: match.S
+ $(CPP) $(CPPFLAGS) match.S > _match.s
+ $(CC) -c _match.s
+ mv _match$O match$O
+ rm -f _match.s
--- /dev/null
+# Makefile for gzip (GNU zip) -*- Indented-Text -*-
+# This Makefile is for SAS/C 6.3 on the Amiga
+# Don't use it with SAS/C 6.2 or earlier versions. These versions will
+# produce incorrect code for trees.c because of a bug in the optimizer.
+# Made by Carsten Steger (carsten.steger@informatik.tu-muenchen.de)
+
+# Some notes on gzip for the Amiga:
+# Due to a strange implementation of the RAM-Disk on Commodore's part
+# you should not use gzip -r on a directory in the RAM-Disk. To zip all
+# files in a directory 'dir' in the RAM-Disk use something like
+# gzip ram:dir/#? ram:dir/#?/#? ...
+# where the number of '#?'s reflects the depth of the directory 'dir'.
+#
+# Alas, the program has it's full functionality only if you have
+# Kickstart 2.0 or higher installed. This affects the expansion of
+# wildcards and the preservation of file access times. You should use
+# a shell that does wildcard expansion under Kickstart 1.3.
+
+
+CC = sc
+
+# If you have a 68020 or more you can define UNALIGNED_OK below
+DEFS = DEF=AMIGA
+LIBS = LIB LIB:scnb.lib
+
+CFLAGS = DATA=FAR NOSTKCHK PARM=R IDIR=
+OPTFLAGS = OPT OPTGO OPTPEEP OPTCOMP=3 OPTDEP=3 OPTRDEP=3
+LDFLAGS = FROM LIB:c.o
+
+OBJS = gzip.o zip.o deflate.o trees.o bits.o unzip.o inflate.o util.o \
+ crypt.o lzw.o unlzw.o unpack.o unlzh.o getopt.o tailor.o match.o
+
+.c.o:
+ $(CC) $(DEFS) $(CFLAGS) $(OPTFLAGS) $<
+.a.o:
+ $(CC) $(DEFS) $(CFLAGS) $<
+
+all: gzip
+
+gzip: $(OBJS)
+ slink $(LDFLAGS) $(OBJS) TO $@ $(LIBS)
+
+gzip.o: gzip.c gzip.h tailor.h revision.h lzw.h getopt.h
+zip.o: zip.c gzip.h tailor.h crypt.h
+deflate.o: deflate.c gzip.h tailor.h lzw.h
+trees.o: trees.c gzip.h tailor.h
+bits.o: bits.c gzip.h tailor.h crypt.h
+unzip.o: unzip.c gzip.h tailor.h crypt.h
+inflate.o: inflate.c gzip.h tailor.h
+util.o: util.c gzip.h tailor.h crypt.h
+lzw.o: lzw.c lzw.h gzip.h tailor.h
+unlzw.o: unlzw.c gzip.h tailor.h lzw.h
+unpack.o: unpack.c gzip.h tailor.h crypt.h
+unlzh.o: unlzh.c gzip.h tailor.h lzw.h
+crypt.o: crypt.c
+getopt.o: getopt.c getopt.h
+tailor.o: tailor.c
+
+match.o: match.a
--- /dev/null
+; match.a -- optional optimized asm version of longest match in deflate.c
+; Copyright (C) 1992-1993 Jean-loup Gailly
+; This is free software; you can redistribute it and/or modify it under the
+; terms of the GNU General Public License, see the file COPYING.
+
+; $Id: match.a,v 1.1 1993/03/11 16:05:57 jloup Exp $
+;
+; Adapted for the Amiga by Carsten Steger <stegerc@informatik.tu-muenchen.de>
+; using the code in match.S.
+; The major change in this code consists of removing all unaligned
+; word accesses, because they cause 68000-based Amigas to crash.
+; For maximum speed, UNALIGNED_OK can be defined in Makefile.sasc.
+; The program will then only run on 68020-based Amigas, though.
+;
+; This code will run with registerized parameters too, unless SAS
+; changes parameter passing conventions between new releases of SAS/C.
+
+
+Cur_Match reg d0 ; Must be in d0!
+Best_Len reg d1
+Loop_Counter reg d2
+Scan_Start reg d3
+Scan_End reg d4
+Limit reg d5
+Chain_Length reg d6
+Scan_Test reg d7
+Scan reg a0
+Match reg a1
+Prev_Address reg a2
+Scan_Ini reg a3
+Match_Ini reg a4
+
+MAX_MATCH equ 258
+MIN_MATCH equ 3
+WSIZE equ 32768
+MAX_DIST equ WSIZE-MAX_MATCH-MIN_MATCH-1
+
+
+ xref _max_chain_length
+ xref _prev_length
+ xref _prev
+ xref _window
+ xref _strstart
+ xref _good_match
+ xref _match_start
+ xref _nice_match
+
+
+ section match,code
+
+ xdef _match_init
+ xdef @match_init
+ xdef _longest_match
+ xdef @longest_match
+
+
+_match_init:
+@match_init:
+ rts
+
+
+_longest_match:
+ move.l 4(sp),Cur_Match
+@longest_match:
+ ifd UNALIGNED_OK
+ movem.l d2-d6/a2-a4,-(sp)
+ else
+ movem.l d2-d7/a2-a4,-(sp)
+ endc
+ move.l _max_chain_length,Chain_Length
+ move.l _prev_length,Best_Len
+ lea _prev,Prev_Address
+ lea _window+MIN_MATCH,Match_Ini
+ move.l _strstart,Limit
+ move.l Match_Ini,Scan_Ini
+ add.l Limit,Scan_Ini
+ subi.w #MAX_DIST,Limit
+ bhi.b limit_ok
+ moveq #0,Limit
+limit_ok:
+ cmp.l _good_match,Best_Len
+ bcs.b length_ok
+ lsr.l #2,Chain_Length
+length_ok:
+ subq.l #1,Chain_Length
+
+ ifd UNALIGNED_OK
+
+ move.w -MIN_MATCH(Scan_Ini),Scan_Start
+ move.w -MIN_MATCH-1(Scan_Ini,Best_Len),Scan_End
+
+ else
+
+ move.b -MIN_MATCH(Scan_Ini),Scan_Start
+ lsl.w #8,Scan_Start
+ move.b -MIN_MATCH+1(Scan_Ini),Scan_Start
+ move.b -MIN_MATCH-1(Scan_Ini,Best_Len),Scan_End
+ lsl.w #8,Scan_End
+ move.b -MIN_MATCH(Scan_Ini,Best_Len),Scan_End
+
+ endc
+
+ bra.b do_scan
+
+long_loop:
+
+ ifd UNALIGNED_OK
+
+ move.w -MIN_MATCH-1(Scan_Ini,Best_Len),Scan_End
+
+ else
+
+ move.b -MIN_MATCH-1(Scan_Ini,Best_Len),Scan_End
+ lsl.w #8,Scan_End
+ move.b -MIN_MATCH(Scan_Ini,Best_Len),Scan_End
+
+ endc
+
+short_loop:
+ lsl.w #1,Cur_Match
+ move.w 0(Prev_Address,Cur_Match),Cur_Match
+ cmp.w Limit,Cur_Match
+ dbls Chain_Length,do_scan
+ bra.b return
+
+do_scan:
+ move.l Match_Ini,Match
+ add.l Cur_Match,Match
+
+ ifd UNALIGNED_OK
+
+ cmp.w -MIN_MATCH-1(Match,Best_Len),Scan_End
+ bne.b short_loop
+ cmp.w -MIN_MATCH(Match),Scan_Start
+ bne.b short_loop
+
+ else
+
+ move.b -MIN_MATCH-1(Match,Best_Len),Scan_Test
+ lsl.w #8,Scan_Test
+ move.b -MIN_MATCH(Match,Best_Len),Scan_Test
+ cmp.w Scan_Test,Scan_End
+ bne.b short_loop
+ move.b -MIN_MATCH(Match),Scan_Test
+ lsl.w #8,Scan_Test
+ move.b -MIN_MATCH+1(Match),Scan_Test
+ cmp.w Scan_Test,Scan_Start
+ bne.b short_loop
+
+ endc
+
+ move.w #(MAX_MATCH-MIN_MATCH),Loop_Counter
+ move.l Scan_Ini,Scan
+scan_loop:
+ cmpm.b (Match)+,(Scan)+
+ dbne Loop_Counter,scan_loop
+
+ sub.l Scan_Ini,Scan
+ addq.l #(MIN_MATCH-1),Scan
+ cmp.l Best_Len,Scan
+ bls.b short_loop
+ move.l Scan,Best_Len
+ move.l Cur_Match,_match_start
+ cmp.l _nice_match,Best_Len
+ bcs.b long_loop
+return:
+ move.l Best_Len,d0
+ ifd UNALIGNED_OK
+ movem.l (sp)+,d2-d6/a2-a4
+ else
+ movem.l (sp)+,d2-d7/a2-a4
+ endc
+ rts
+
+ end
--- /dev/null
+/* tailor.c -- target dependent functions
+ * Copyright (C) 1993 Carsten Steger (carsten.steger@informatik.tu-muenchen.de)
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/*
+ * This file contains Amiga specific functions for gzip.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <error.h>
+#include <time.h>
+#include <utime.h>
+#include <exec/types.h>
+#include <dos/dos.h>
+#include <dos/dosextens.h>
+#include <dos/dosasl.h>
+#include <proto/dos.h>
+
+#define MAXPATH 1024
+#define MAXARGS 512
+
+extern struct DosLibrary *DOSBase;
+
+extern void *xmalloc(unsigned int size);
+
+static char *expand_next_file (char *pattern);
+static int in_prev_args (char *arg, char **argv, int argc);
+extern void _expand_args (int *oargc, char ***oargv);
+
+
+static char *expand_next_file (pattern)
+ char *pattern;
+{
+ long err;
+ char *pathname;
+ static struct AnchorPath *an = NULL;
+
+ pathname = NULL;
+ if (pattern == NULL)
+ err = -1;
+ else
+ do
+ {
+ if (an == NULL)
+ {
+ an = xmalloc (sizeof (struct AnchorPath) + MAXPATH);
+ memset (an, 0, sizeof (struct AnchorPath) + MAXPATH);
+ an->ap_BreakBits = SIGBREAKF_CTRL_C;
+ an->ap_Strlen = MAXPATH;
+ an->ap_Flags = APF_DOWILD;
+ err = MatchFirst (pattern, an);
+ }
+ else
+ err = MatchNext (an);
+
+ pathname = an->ap_Buf;
+ } while (err == 0 && pathname == NULL);
+
+ if (err)
+ {
+ MatchEnd (an);
+ free (an);
+ an = NULL;
+ return NULL;
+ }
+ else
+ return pathname;
+}
+
+
+static int in_prev_args (arg, argv, argc)
+ char *arg, **argv;
+ int argc;
+{
+ int i, is_in_args;
+
+ is_in_args = 0;
+ for (i = 1; i < argc - 1; i++)
+ if (stricmp (arg, argv[i]) == 0)
+ is_in_args = 1;
+ return is_in_args;
+}
+
+
+void _expand_args (oargc, oargv)
+ int *oargc;
+ char ***oargv;
+{
+ int i;
+ char *str, **argv;
+ static char buf[MAXPATH];
+ int argc, no_match_at_all, num_matches, contains_wildcards;
+
+ /* With Kickstart 1.3 wildcards can't be expanded. */
+ if (DOSBase->dl_lib.lib_Version < 37) return;
+
+ no_match_at_all = 1;
+ contains_wildcards = 0;
+ argc = 0;
+ argv = xmalloc (MAXARGS * sizeof (char *));
+
+ argv[argc++] = (*oargv)[0];
+ for (i = 1; i < *oargc; i++)
+ {
+ if (ParsePattern ((*oargv)[i], buf, MAXPATH))
+ {
+ contains_wildcards = 1;
+ num_matches = 0;
+ while (str = expand_next_file ((*oargv)[i]))
+ if (argc >= MAXARGS)
+ {
+ expand_next_file (NULL);
+ fprintf (stderr,"Too many files.\n");
+ exit (20);
+ }
+ else
+ {
+ /* Avoid duplicate entries */
+ if (!in_prev_args (str, argv, argc))
+ {
+ argv[argc++] = strdup (str);
+ num_matches++;
+ }
+ }
+ if (num_matches != 0)
+ no_match_at_all = 0;
+ }
+ else
+ if (argc >= MAXARGS)
+ {
+ fprintf (stderr,"Too many files.\n");
+ exit (20);
+ }
+ else
+ {
+ if (!in_prev_args ((*oargv)[i], argv, argc))
+ argv[argc++] = (*oargv)[i];
+ }
+ }
+ *oargc = argc;
+ *oargv = argv;
+ if (no_match_at_all && contains_wildcards) {
+ fprintf (stderr,"No match.\n");
+ exit (20);
+ }
+}
+
+
+int utime (path, times)
+ char *path;
+ struct utimbuf *times;
+{
+ struct DateStamp date;
+ LONG error;
+ time_t modtime;
+
+ /* With Kickstart 1.3 setting the filedate could be done, I guess.
+ * Maybe someone else will implement and test the code for this
+ * case (I don't have Kickstart 1.3). */
+ if (DOSBase->dl_lib.lib_Version < 37) return 0;
+
+ /* Amiga dates are counted from 1. Jan 1978 as opposed to 1. Jan 1970
+ * on Unix. Therefore we have to subtract 2922 days (8*365+2). We also
+ * have to subtract the value of __timezone since SAS/C uses "CST+06"
+ * as the default value. */
+ modtime = times->modtime - __timezone;
+ date.ds_Days = (modtime / 86400) - 2922;
+ modtime %= 86400;
+ date.ds_Minute = modtime / 60;
+ modtime %= 60;
+ date.ds_Tick = modtime * TICKS_PER_SECOND;
+ error = SetFileDate (path, &date);
+ if (error == DOSFALSE)
+ {
+ errno = EOSERR;
+ return -1;
+ }
+ return 0;
+}
--- /dev/null
+#ifndef _UTIME_H
+#define _UTIME_H 1
+
+#ifndef _TIME_H
+#include <time.h>
+#endif
+
+struct utimbuf {
+ time_t actime;
+ time_t modtime;
+};
+
+extern int utime (char *path, struct utimbuf *times);
+
+#endif
--- /dev/null
+# Makefile for gzip (GNU zip) -*- Indented-Text -*-
+# This is free software; you can redistribute it and/or modify it under the
+# terms of the GNU General Public License, see the file COPYING.
+
+# Simple Atari-specific makefile for gcc.
+# Written by Daniel Eriksson <den@hgs.se>
+# Modified by Andreas Schwab <schwab@ls5.informatik.uni-dortmund.de>
+# and Robert Fischer <fischer-robert@cs.yale.edu>.
+
+# This Makefile is configured by default for the Atari ST using the
+# Minix filesytem. It can be modified (for efficiency) for an Atari TT
+# according to the instructions given below. It must be modified
+# for building a TOS-filesystem version.
+
+CC=gcc
+BASIC_FLAGS = -O2 -DATARI
+
+# Use this for a TT-only version
+#TT_FLAGS = -m68020
+
+# CFLAGS for building a Minix-filesystem version
+CFLAGS = $(BASIC_FLAGS) $(TT_FLAGS)
+
+# CFLAGS for building a TOS-filesystem version
+#CFLAGS = $(BASIC_FLAGS) $(TT_FLAGS) -DTOSFS
+
+AS=$(CC) -c
+ASFLAGS = $(CFLAGS)
+LDFLAGS =
+
+OBJA = match.o
+OBJS = bits.o crypt.o deflate.o getopt.o gzip.o inflate.o lzw.o \
+ trees.o unlzw.o unpack.o unlzh.o unzip.o util.o zip.o $(OBJA)
+
+gzip.ttp: $(OBJS)
+ $(CC) $(LDFLAGS) -o gzip.ttp $(OBJS)
+
+gzip.o zip.o deflate.o trees.o bits.o unzip.o inflate.o: gzip.h tailor.h
+util.o lzw.o unlzw.o unpack.o unlzh.o crypt.o: gzip.h tailor.h
+
+gzip.o unlzw.o: revision.h lzw.h
+
+bits.o unzip.o util.o zip.o: crypt.h
+
+gzip.o getopt.o: getopt.h
+
+match.o: match.S
+ $(AS) $(ASLAGS) match.S
--- /dev/null
+/* bits.c -- output variable-length bit strings
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+
+/*
+ * PURPOSE
+ *
+ * Output variable-length bit strings. Compression can be done
+ * to a file or to memory. (The latter is not supported in this version.)
+ *
+ * DISCUSSION
+ *
+ * The PKZIP "deflate" file format interprets compressed file data
+ * as a sequence of bits. Multi-bit strings in the file may cross
+ * byte boundaries without restriction.
+ *
+ * The first bit of each byte is the low-order bit.
+ *
+ * The routines in this file allow a variable-length bit value to
+ * be output right-to-left (useful for literal values). For
+ * left-to-right output (useful for code strings from the tree routines),
+ * the bits must have been reversed first with bi_reverse().
+ *
+ * For in-memory compression, the compressed bit stream goes directly
+ * into the requested output buffer. The input data is read in blocks
+ * by the mem_read() function. The buffer is limited to 64K on 16 bit
+ * machines.
+ *
+ * INTERFACE
+ *
+ * void bi_init (FILE *zipfile)
+ * Initialize the bit string routines.
+ *
+ * void send_bits (int value, int length)
+ * Write out a bit string, taking the source bits right to
+ * left.
+ *
+ * int bi_reverse (int value, int length)
+ * Reverse the bits of a bit string, taking the source bits left to
+ * right and emitting them right to left.
+ *
+ * void bi_windup (void)
+ * Write out any remaining bits in an incomplete byte.
+ *
+ * void copy_block(char *buf, unsigned len, int header)
+ * Copy a stored block to the zip file, storing first the length and
+ * its one's complement if requested.
+ *
+ */
+
+#include <config.h>
+#include "tailor.h"
+#include "gzip.h"
+#include "crypt.h"
+
+#ifdef DEBUG
+# include <stdio.h>
+#endif
+
+#ifdef RCSID
+static char rcsid[] = "$Id: bits.c,v 0.9 1993/06/11 10:16:58 jloup Exp $";
+#endif
+
+/* ===========================================================================
+ * Local data used by the "bit string" routines.
+ */
+
+local file_t zfile; /* output gzip file */
+
+local unsigned short bi_buf;
+/* Output buffer. bits are inserted starting at the bottom (least significant
+ * bits).
+ */
+
+#define Buf_size (8 * 2*sizeof(char))
+/* Number of bits used within bi_buf. (bi_buf might be implemented on
+ * more than 16 bits on some systems.)
+ */
+
+local int bi_valid;
+/* Number of valid bits in bi_buf. All bits above the last valid bit
+ * are always zero.
+ */
+
+int (*read_buf) OF((char *buf, unsigned size));
+/* Current input function. Set to mem_read for in-memory compression */
+
+#ifdef DEBUG
+ off_t bits_sent; /* bit length of the compressed data */
+#endif
+
+/* ===========================================================================
+ * Initialize the bit string routines.
+ */
+void bi_init (zipfile)
+ file_t zipfile; /* output zip file, NO_FILE for in-memory compression */
+{
+ zfile = zipfile;
+ bi_buf = 0;
+ bi_valid = 0;
+#ifdef DEBUG
+ bits_sent = 0L;
+#endif
+
+ /* Set the defaults for file compression. They are set by memcompress
+ * for in-memory compression.
+ */
+ if (zfile != NO_FILE) {
+ read_buf = file_read;
+ }
+}
+
+/* ===========================================================================
+ * Send a value on a given number of bits.
+ * IN assertion: length <= 16 and value fits in length bits.
+ */
+void send_bits(value, length)
+ int value; /* value to send */
+ int length; /* number of bits */
+{
+#ifdef DEBUG
+ Tracev((stderr," l %2d v %4x ", length, value));
+ Assert(length > 0 && length <= 15, "invalid length");
+ bits_sent += (off_t)length;
+#endif
+ /* If not enough room in bi_buf, use (valid) bits from bi_buf and
+ * (16 - bi_valid) bits from value, leaving (width - (16-bi_valid))
+ * unused bits in value.
+ */
+ if (bi_valid > (int)Buf_size - length) {
+ bi_buf |= (value << bi_valid);
+ put_short(bi_buf);
+ bi_buf = (ush)value >> (Buf_size - bi_valid);
+ bi_valid += length - Buf_size;
+ } else {
+ bi_buf |= value << bi_valid;
+ bi_valid += length;
+ }
+}
+
+/* ===========================================================================
+ * Reverse the first len bits of a code, using straightforward code (a faster
+ * method would use a table)
+ * IN assertion: 1 <= len <= 15
+ */
+unsigned bi_reverse(code, len)
+ unsigned code; /* the value to invert */
+ int len; /* its bit length */
+{
+ register unsigned res = 0;
+ do {
+ res |= code & 1;
+ code >>= 1, res <<= 1;
+ } while (--len > 0);
+ return res >> 1;
+}
+
+/* ===========================================================================
+ * Write out any remaining bits in an incomplete byte.
+ */
+void bi_windup()
+{
+ if (bi_valid > 8) {
+ put_short(bi_buf);
+ } else if (bi_valid > 0) {
+ put_byte(bi_buf);
+ }
+ bi_buf = 0;
+ bi_valid = 0;
+#ifdef DEBUG
+ bits_sent = (bits_sent+7) & ~7;
+#endif
+}
+
+/* ===========================================================================
+ * Copy a stored block to the zip file, storing first the length and its
+ * one's complement if requested.
+ */
+void copy_block(buf, len, header)
+ char *buf; /* the input data */
+ unsigned len; /* its length */
+ int header; /* true if block header must be written */
+{
+ bi_windup(); /* align on byte boundary */
+
+ if (header) {
+ put_short((ush)len);
+ put_short((ush)~len);
+#ifdef DEBUG
+ bits_sent += 2*16;
+#endif
+ }
+#ifdef DEBUG
+ bits_sent += (off_t)len<<3;
+#endif
+ while (len--) {
+#ifdef CRYPT
+ int t;
+ if (key) zencode(*buf, t);
+#endif
+ put_byte(*buf++);
+ }
+}
--- /dev/null
+/* config.h.in. Generated from configure.in by autoheader. */
+
+/* Define if an assembler version of longest_match is available. */
+#undef ASMV
+
+/* Define if you have the <dirent.h> header file, and it defines `DIR'. */
+#undef HAVE_DIRENT_H
+
+/* Define if you have the <fcntl.h> header file. */
+#undef HAVE_FCNTL_H
+
+/* Define if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* Define if you have the <limits.h> header file. */
+#undef HAVE_LIMITS_H
+
+/* Define if you have the `lstat' function. */
+#undef HAVE_LSTAT
+
+/* Define if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define if you have the <ndir.h> header file, and it defines `DIR'. */
+#undef HAVE_NDIR_H
+
+/* Define if you have the `rpmatch' function. */
+#undef HAVE_RPMATCH
+
+/* Define if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define if you have the <sys/dir.h> header file, and it defines `DIR'. */
+#undef HAVE_SYS_DIR_H
+
+/* Define if you have the <sys/ndir.h> header file, and it defines `DIR'. */
+#undef HAVE_SYS_NDIR_H
+
+/* Define if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define if you have the <sys/utime.h> header file. */
+#undef HAVE_SYS_UTIME_H
+
+/* Define if you have the <time.h> header file. */
+#undef HAVE_TIME_H
+
+/* Define if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Define if you have the `utime' function. */
+#undef HAVE_UTIME
+
+/* Define if you have the <utime.h> header file. */
+#undef HAVE_UTIME_H
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define as the return type of signal handlers (`int' or `void'). */
+#undef RETSIGTYPE
+
+/* Define if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Version number of package */
+#undef VERSION
+
+/* Define if on AIX 3.
+ System headers sometimes define this.
+ We just want to avoid a redefinition error message. */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+#undef _FILE_OFFSET_BITS
+
+/* Define for large files, on AIX-style hosts. */
+#undef _LARGE_FILES
+
+/* Define if on MINIX. */
+#undef _MINIX
+
+/* Define if the system does not provide POSIX.1 features except with this
+ defined. */
+#undef _POSIX_1_SOURCE
+
+/* Define if you need to in order for `stat' and other things to work. */
+#undef _POSIX_SOURCE
+
+/* Define to empty if `const' does not conform to ANSI C. */
+#undef const
+
+/* Define to `long' if <sys/types.h> does not define. */
+#undef off_t
+
+/* Define to `unsigned' if <sys/types.h> does not define. */
+#undef size_t
--- /dev/null
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.52f.
+#
+# Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+# Free Software Foundation, Inc.
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+## --------------------- ##
+## M4sh Initialization. ##
+## --------------------- ##
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+ emulate sh
+ NULLCMD=:
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+ set -o posix
+fi
+
+# NLS nuisances.
+# Support unset when possible.
+if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
+ as_unset=unset
+else
+ as_unset=false
+fi
+
+(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
+ { $as_unset LANG || test "${LANG+set}" != set; } ||
+ { LANG=C; export LANG; }
+(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
+ { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
+ { LC_ALL=C; export LC_ALL; }
+(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
+ { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
+ { LC_TIME=C; export LC_TIME; }
+(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
+ { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
+ { LC_CTYPE=C; export LC_CTYPE; }
+(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
+ { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
+ { LANGUAGE=C; export LANGUAGE; }
+(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
+ { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
+ { LC_COLLATE=C; export LC_COLLATE; }
+(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
+ { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
+ { LC_NUMERIC=C; export LC_NUMERIC; }
+(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
+ { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
+ { LC_MESSAGES=C; export LC_MESSAGES; }
+
+# Name of the executable.
+as_me=`(basename "$0") 2>/dev/null ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)$' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+ /^X\/\(\/\/\)$/{ s//\1/; q; }
+ /^X\/\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! $SHELL" >conftest.sh
+ echo "exit 0" >>conftest.sh
+ chmod +x conftest.sh
+ if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conftest.sh
+fi
+
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" || {
+ # Find who we are. Look in the path if we contain no path at all
+ # relative or not.
+ case $0 in
+ *[\\/]* ) as_myself=$0 ;;
+ *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+ ;;
+ esac
+ # We did not find ourselves, most probably we were run as `sh COMMAND'
+ # in which case we are not to be found in the path.
+ if test "x$as_myself" = x; then
+ as_myself=$0
+ fi
+ if test ! -f "$as_myself"; then
+ { echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2
+ { (exit 1); exit 1; }; }
+ fi
+ case $CONFIG_SHELL in
+ '')
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin:/usr/bin:$PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for as_base in sh bash ksh sh5; do
+ case $as_dir in
+ /*)
+ if ("$as_dir/$as_base" -c '
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" ') 2>/dev/null; then
+ CONFIG_SHELL=$as_dir/$as_base
+ export CONFIG_SHELL
+ exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+ fi;;
+ esac
+ done
+done
+;;
+ esac
+
+ # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+ # uniformly replaced by the line number. The first 'sed' inserts a
+ # line-number line before each line; the second 'sed' does the real
+ # work. The second script uses 'N' to pair each line-number line
+ # with the numbered line, and appends trailing '-' during
+ # substitution so that $LINENO is not a special case at line end.
+ # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+ # second 'sed' script. Blame Lee E. McMahon for sed's syntax. :-)
+ sed '=' <$as_myself |
+ sed '
+ N
+ s,$,-,
+ : loop
+ s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+ t loop
+ s,-$,,
+ s,^['$as_cr_digits']*\n,,
+ ' >$as_me.lineno &&
+ chmod +x $as_me.lineno ||
+ { echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
+ { (exit 1); exit 1; }; }
+
+ # Don't try to exec as it changes $[0], causing all sort of problems
+ # (the dirname of $[0] is not the place where we might find the
+ # original and so on. Autoconf is especially sensible to this).
+ . ./$as_me.lineno
+ # Exit status is that of the last command.
+ exit
+}
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+ *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T=' ' ;;
+ *c*,* ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+ *) ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+ # We could just check for DJGPP; but this test a) works b) is more generic
+ # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+ if test -f conf$$.exe; then
+ # Don't use ln at all; we don't have any links
+ as_ln_s='cp -p'
+ else
+ as_ln_s='ln -s'
+ fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+else
+ as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.file
+
+as_executable_p="test -f"
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+
+# IFS
+# We need space, tab and new line, in precisely that order.
+as_nl='
+'
+IFS=" $as_nl"
+
+# CDPATH.
+$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export CDPATH; }
+
+# Name of the host.
+# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+exec 6>&1
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+# Maximum number of lines to put in a shell here document.
+# This variable seems obsolete. It should probably be removed, and
+# only ac_max_sed_lines should be used.
+: ${ac_max_here_lines=38}
+
+ac_unique_file="gzip.c"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#if STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# if HAVE_STDLIB_H
+# include <stdlib.h>
+# endif
+#endif
+#if HAVE_STRING_H
+# if !STDC_HEADERS && HAVE_MEMORY_H
+# include <memory.h>
+# endif
+# include <string.h>
+#endif
+#if HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#if HAVE_INTTYPES_H
+# include <inttypes.h>
+#else
+# if HAVE_STDINT_H
+# include <stdint.h>
+# endif
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datadir='${prefix}/share'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+libdir='${exec_prefix}/lib'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+infodir='${prefix}/info'
+mandir='${prefix}/man'
+
+# Identity of this package.
+PACKAGE_NAME=
+PACKAGE_TARNAME=
+PACKAGE_VERSION=
+PACKAGE_STRING=
+PACKAGE_BUGREPORT=
+
+ac_prev=
+for ac_option
+do
+ # If the previous option needs an argument, assign it.
+ if test -n "$ac_prev"; then
+ eval "$ac_prev=\$ac_option"
+ ac_prev=
+ continue
+ fi
+
+ ac_optarg=`expr "x$ac_option" : 'x[^=]*=\(.*\)'`
+
+ # Accept the important Cygnus configure options, so we can diagnose typos.
+
+ case $ac_option in
+
+ -bindir | --bindir | --bindi | --bind | --bin | --bi)
+ ac_prev=bindir ;;
+ -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+ bindir=$ac_optarg ;;
+
+ -build | --build | --buil | --bui | --bu)
+ ac_prev=build_alias ;;
+ -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+ build_alias=$ac_optarg ;;
+
+ -cache-file | --cache-file | --cache-fil | --cache-fi \
+ | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+ ac_prev=cache_file ;;
+ -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+ | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+ cache_file=$ac_optarg ;;
+
+ --config-cache | -C)
+ cache_file=config.cache ;;
+
+ -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+ ac_prev=datadir ;;
+ -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
+ | --da=*)
+ datadir=$ac_optarg ;;
+
+ -disable-* | --disable-*)
+ ac_feature=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+ { (exit 1); exit 1; }; }
+ ac_feature=`echo $ac_feature | sed 's/-/_/g'`
+ eval "enable_$ac_feature=no" ;;
+
+ -enable-* | --enable-*)
+ ac_feature=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_feature" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid feature name: $ac_feature" >&2
+ { (exit 1); exit 1; }; }
+ ac_feature=`echo $ac_feature | sed 's/-/_/g'`
+ case $ac_option in
+ *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
+ *) ac_optarg=yes ;;
+ esac
+ eval "enable_$ac_feature='$ac_optarg'" ;;
+
+ -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+ | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+ | --exec | --exe | --ex)
+ ac_prev=exec_prefix ;;
+ -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+ | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+ | --exec=* | --exe=* | --ex=*)
+ exec_prefix=$ac_optarg ;;
+
+ -gas | --gas | --ga | --g)
+ # Obsolete; use --with-gas.
+ with_gas=yes ;;
+
+ -help | --help | --hel | --he | -h)
+ ac_init_help=long ;;
+ -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+ ac_init_help=recursive ;;
+ -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+ ac_init_help=short ;;
+
+ -host | --host | --hos | --ho)
+ ac_prev=host_alias ;;
+ -host=* | --host=* | --hos=* | --ho=*)
+ host_alias=$ac_optarg ;;
+
+ -includedir | --includedir | --includedi | --included | --include \
+ | --includ | --inclu | --incl | --inc)
+ ac_prev=includedir ;;
+ -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+ | --includ=* | --inclu=* | --incl=* | --inc=*)
+ includedir=$ac_optarg ;;
+
+ -infodir | --infodir | --infodi | --infod | --info | --inf)
+ ac_prev=infodir ;;
+ -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+ infodir=$ac_optarg ;;
+
+ -libdir | --libdir | --libdi | --libd)
+ ac_prev=libdir ;;
+ -libdir=* | --libdir=* | --libdi=* | --libd=*)
+ libdir=$ac_optarg ;;
+
+ -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+ | --libexe | --libex | --libe)
+ ac_prev=libexecdir ;;
+ -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+ | --libexe=* | --libex=* | --libe=*)
+ libexecdir=$ac_optarg ;;
+
+ -localstatedir | --localstatedir | --localstatedi | --localstated \
+ | --localstate | --localstat | --localsta | --localst \
+ | --locals | --local | --loca | --loc | --lo)
+ ac_prev=localstatedir ;;
+ -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+ | --localstate=* | --localstat=* | --localsta=* | --localst=* \
+ | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+ localstatedir=$ac_optarg ;;
+
+ -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+ ac_prev=mandir ;;
+ -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+ mandir=$ac_optarg ;;
+
+ -nfp | --nfp | --nf)
+ # Obsolete; use --without-fp.
+ with_fp=no ;;
+
+ -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+ | --no-cr | --no-c)
+ no_create=yes ;;
+
+ -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+ | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+ no_recursion=yes ;;
+
+ -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+ | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+ | --oldin | --oldi | --old | --ol | --o)
+ ac_prev=oldincludedir ;;
+ -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+ | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+ | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+ oldincludedir=$ac_optarg ;;
+
+ -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+ ac_prev=prefix ;;
+ -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+ prefix=$ac_optarg ;;
+
+ -program-prefix | --program-prefix | --program-prefi | --program-pref \
+ | --program-pre | --program-pr | --program-p)
+ ac_prev=program_prefix ;;
+ -program-prefix=* | --program-prefix=* | --program-prefi=* \
+ | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+ program_prefix=$ac_optarg ;;
+
+ -program-suffix | --program-suffix | --program-suffi | --program-suff \
+ | --program-suf | --program-su | --program-s)
+ ac_prev=program_suffix ;;
+ -program-suffix=* | --program-suffix=* | --program-suffi=* \
+ | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+ program_suffix=$ac_optarg ;;
+
+ -program-transform-name | --program-transform-name \
+ | --program-transform-nam | --program-transform-na \
+ | --program-transform-n | --program-transform- \
+ | --program-transform | --program-transfor \
+ | --program-transfo | --program-transf \
+ | --program-trans | --program-tran \
+ | --progr-tra | --program-tr | --program-t)
+ ac_prev=program_transform_name ;;
+ -program-transform-name=* | --program-transform-name=* \
+ | --program-transform-nam=* | --program-transform-na=* \
+ | --program-transform-n=* | --program-transform-=* \
+ | --program-transform=* | --program-transfor=* \
+ | --program-transfo=* | --program-transf=* \
+ | --program-trans=* | --program-tran=* \
+ | --progr-tra=* | --program-tr=* | --program-t=*)
+ program_transform_name=$ac_optarg ;;
+
+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+ | -silent | --silent | --silen | --sile | --sil)
+ silent=yes ;;
+
+ -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+ ac_prev=sbindir ;;
+ -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+ | --sbi=* | --sb=*)
+ sbindir=$ac_optarg ;;
+
+ -sharedstatedir | --sharedstatedir | --sharedstatedi \
+ | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+ | --sharedst | --shareds | --shared | --share | --shar \
+ | --sha | --sh)
+ ac_prev=sharedstatedir ;;
+ -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+ | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+ | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+ | --sha=* | --sh=*)
+ sharedstatedir=$ac_optarg ;;
+
+ -site | --site | --sit)
+ ac_prev=site ;;
+ -site=* | --site=* | --sit=*)
+ site=$ac_optarg ;;
+
+ -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+ ac_prev=srcdir ;;
+ -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+ srcdir=$ac_optarg ;;
+
+ -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+ | --syscon | --sysco | --sysc | --sys | --sy)
+ ac_prev=sysconfdir ;;
+ -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+ | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+ sysconfdir=$ac_optarg ;;
+
+ -target | --target | --targe | --targ | --tar | --ta | --t)
+ ac_prev=target_alias ;;
+ -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+ target_alias=$ac_optarg ;;
+
+ -v | -verbose | --verbose | --verbos | --verbo | --verb)
+ verbose=yes ;;
+
+ -version | --version | --versio | --versi | --vers | -V)
+ ac_init_version=: ;;
+
+ -with-* | --with-*)
+ ac_package=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid package name: $ac_package" >&2
+ { (exit 1); exit 1; }; }
+ ac_package=`echo $ac_package| sed 's/-/_/g'`
+ case $ac_option in
+ *=*) ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`;;
+ *) ac_optarg=yes ;;
+ esac
+ eval "with_$ac_package='$ac_optarg'" ;;
+
+ -without-* | --without-*)
+ ac_package=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_package" : ".*[^-_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid package name: $ac_package" >&2
+ { (exit 1); exit 1; }; }
+ ac_package=`echo $ac_package | sed 's/-/_/g'`
+ eval "with_$ac_package=no" ;;
+
+ --x)
+ # Obsolete; use --with-x.
+ with_x=yes ;;
+
+ -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+ | --x-incl | --x-inc | --x-in | --x-i)
+ ac_prev=x_includes ;;
+ -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+ | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+ x_includes=$ac_optarg ;;
+
+ -x-libraries | --x-libraries | --x-librarie | --x-librari \
+ | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+ ac_prev=x_libraries ;;
+ -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+ | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+ x_libraries=$ac_optarg ;;
+
+ -*) { echo "$as_me: error: unrecognized option: $ac_option
+Try \`$0 --help' for more information." >&2
+ { (exit 1); exit 1; }; }
+ ;;
+
+ *=*)
+ ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
+ { echo "$as_me: error: invalid variable name: $ac_envvar" >&2
+ { (exit 1); exit 1; }; }
+ ac_optarg=`echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"`
+ eval "$ac_envvar='$ac_optarg'"
+ export $ac_envvar ;;
+
+ *)
+ # FIXME: should be removed in autoconf 3.0.
+ echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+ expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+ echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+ : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
+ ;;
+
+ esac
+done
+
+if test -n "$ac_prev"; then
+ ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+ { echo "$as_me: error: missing argument to $ac_option" >&2
+ { (exit 1); exit 1; }; }
+fi
+
+# Be sure to have absolute paths.
+for ac_var in exec_prefix prefix
+do
+ eval ac_val=$`echo $ac_var`
+ case $ac_val in
+ [\\/$]* | ?:[\\/]* | NONE | '' ) ;;
+ *) { echo "$as_me: error: expected an absolute path for --$ac_var: $ac_val" >&2
+ { (exit 1); exit 1; }; };;
+ esac
+done
+
+# Be sure to have absolute paths.
+for ac_var in bindir sbindir libexecdir datadir sysconfdir sharedstatedir \
+ localstatedir libdir includedir oldincludedir infodir mandir
+do
+ eval ac_val=$`echo $ac_var`
+ case $ac_val in
+ [\\/$]* | ?:[\\/]* ) ;;
+ *) { echo "$as_me: error: expected an absolute path for --$ac_var: $ac_val" >&2
+ { (exit 1); exit 1; }; };;
+ esac
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: should be removed in autoconf 3.0.
+if test "x$host_alias" != x; then
+ if test "x$build_alias" = x; then
+ cross_compiling=maybe
+ echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
+ If a cross compiler is detected then cross compile mode will be used." >&2
+ elif test "x$build_alias" != "x$host_alias"; then
+ cross_compiling=yes
+ fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+ ac_srcdir_defaulted=yes
+ # Try the directory containing this script, then its parent.
+ ac_confdir=`(dirname "$0") 2>/dev/null ||
+$as_expr X"$0" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$0" : 'X\(//\)[^/]' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$0" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ srcdir=$ac_confdir
+ if test ! -r $srcdir/$ac_unique_file; then
+ srcdir=..
+ fi
+else
+ ac_srcdir_defaulted=no
+fi
+if test ! -r $srcdir/$ac_unique_file; then
+ if test "$ac_srcdir_defaulted" = yes; then
+ { echo "$as_me: error: cannot find sources ($ac_unique_file) in $ac_confdir or .." >&2
+ { (exit 1); exit 1; }; }
+ else
+ { echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
+ { (exit 1); exit 1; }; }
+ fi
+fi
+srcdir=`echo "$srcdir" | sed 's%\([^\\/]\)[\\/]*$%\1%'`
+ac_env_build_alias_set=${build_alias+set}
+ac_env_build_alias_value=$build_alias
+ac_cv_env_build_alias_set=${build_alias+set}
+ac_cv_env_build_alias_value=$build_alias
+ac_env_host_alias_set=${host_alias+set}
+ac_env_host_alias_value=$host_alias
+ac_cv_env_host_alias_set=${host_alias+set}
+ac_cv_env_host_alias_value=$host_alias
+ac_env_target_alias_set=${target_alias+set}
+ac_env_target_alias_value=$target_alias
+ac_cv_env_target_alias_set=${target_alias+set}
+ac_cv_env_target_alias_value=$target_alias
+ac_env_CC_set=${CC+set}
+ac_env_CC_value=$CC
+ac_cv_env_CC_set=${CC+set}
+ac_cv_env_CC_value=$CC
+ac_env_CFLAGS_set=${CFLAGS+set}
+ac_env_CFLAGS_value=$CFLAGS
+ac_cv_env_CFLAGS_set=${CFLAGS+set}
+ac_cv_env_CFLAGS_value=$CFLAGS
+ac_env_LDFLAGS_set=${LDFLAGS+set}
+ac_env_LDFLAGS_value=$LDFLAGS
+ac_cv_env_LDFLAGS_set=${LDFLAGS+set}
+ac_cv_env_LDFLAGS_value=$LDFLAGS
+ac_env_CPPFLAGS_set=${CPPFLAGS+set}
+ac_env_CPPFLAGS_value=$CPPFLAGS
+ac_cv_env_CPPFLAGS_set=${CPPFLAGS+set}
+ac_cv_env_CPPFLAGS_value=$CPPFLAGS
+ac_env_CPP_set=${CPP+set}
+ac_env_CPP_value=$CPP
+ac_cv_env_CPP_set=${CPP+set}
+ac_cv_env_CPP_value=$CPP
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+ # Omit some internal or obsolete options to make the list less imposing.
+ # This message is too long to be a string in the A/UX 3.1 sh.
+ cat <<_ACEOF
+\`configure' configures this package to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE. See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+ -h, --help display this help and exit
+ --help=short display options specific to this package
+ --help=recursive display the short help of all the included packages
+ -V, --version display version information and exit
+ -q, --quiet, --silent do not print \`checking...' messages
+ --cache-file=FILE cache test results in FILE [disabled]
+ -C, --config-cache alias for \`--cache-file=config.cache'
+ -n, --no-create do not create output files
+ --srcdir=DIR find the sources in DIR [configure dir or \`..']
+
+_ACEOF
+
+ cat <<_ACEOF
+Installation directories:
+ --prefix=PREFIX install architecture-independent files in PREFIX
+ [$ac_default_prefix]
+ --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
+ [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+ --bindir=DIR user executables [EPREFIX/bin]
+ --sbindir=DIR system admin executables [EPREFIX/sbin]
+ --libexecdir=DIR program executables [EPREFIX/libexec]
+ --datadir=DIR read-only architecture-independent data [PREFIX/share]
+ --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
+ --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
+ --localstatedir=DIR modifiable single-machine data [PREFIX/var]
+ --libdir=DIR object code libraries [EPREFIX/lib]
+ --includedir=DIR C header files [PREFIX/include]
+ --oldincludedir=DIR C header files for non-gcc [/usr/include]
+ --infodir=DIR info documentation [PREFIX/info]
+ --mandir=DIR man documentation [PREFIX/man]
+_ACEOF
+
+ cat <<\_ACEOF
+
+Program names:
+ --program-prefix=PREFIX prepend PREFIX to installed program names
+ --program-suffix=SUFFIX append SUFFIX to installed program names
+ --program-transform-name=PROGRAM run sed PROGRAM on installed program names
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+
+ cat <<\_ACEOF
+
+Optional Features:
+ --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
+ --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
+ --disable-dependency-tracking Speeds up one-time builds
+ --enable-dependency-tracking Do not reject slow dependency extractors
+ --disable-largefile omit support for large files
+
+Some influential environment variables:
+ CC C compiler command
+ CFLAGS C compiler flags
+ LDFLAGS linker flags, e.g. -L<lib dir> if you have libraries in a
+ nonstandard directory <lib dir>
+ CPPFLAGS C/C++ preprocessor flags, e.g. -I<include dir> if you have
+ headers in a nonstandard directory <include dir>
+ CPP C preprocessor
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+_ACEOF
+fi
+
+if test "$ac_init_help" = "recursive"; then
+ # If there are subdirs, report their specific --help.
+ ac_popdir=`pwd`
+ for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+ test -d $ac_dir || continue
+ ac_builddir=.
+
+if test "$ac_dir" != .; then
+ ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+ # A "../" for each directory in $ac_dir_suffix.
+ ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+ ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+ .) # No --srcdir option. We are building in place.
+ ac_srcdir=.
+ if test -z "$ac_top_builddir"; then
+ ac_top_srcdir=.
+ else
+ ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+ fi ;;
+ [\\/]* | ?:[\\/]* ) # Absolute path.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir ;;
+ *) # Relative path.
+ ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_buildpath=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_top_buildpath=`cd "$ac_dir" && cd $ac_top_builddir && pwd`
+ac_srcpath=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_top_srcpath=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
+
+ cd $ac_dir
+ # Check for guested configure; otherwise get Cygnus style configure.
+ if test -f $ac_srcdir/configure.gnu; then
+ echo
+ $SHELL $ac_srcdir/configure.gnu --help=recursive
+ elif test -f $ac_srcdir/configure; then
+ echo
+ $SHELL $ac_srcdir/configure --help=recursive
+ elif test -f $ac_srcdir/configure.ac ||
+ test -f $ac_srcdir/configure.in; then
+ echo
+ $ac_configure --help
+ else
+ echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+ fi
+ cd $ac_popdir
+ done
+fi
+
+test -n "$ac_init_help" && exit 0
+if $ac_init_version; then
+ cat <<\_ACEOF
+
+Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+ exit 0
+fi
+exec 5>config.log
+cat >&5 <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by $as_me, which was
+generated by GNU Autoconf 2.52f. Invocation command line was
+
+ $ $0 $@
+
+_ACEOF
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown`
+
+/bin/arch = `(/bin/arch) 2>/dev/null || echo unknown`
+/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+hostinfo = `(hostinfo) 2>/dev/null || echo unknown`
+/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown`
+/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown`
+/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ echo "PATH: $as_dir"
+done
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Also quote any args containing shell meta-characters.
+ac_configure_args=
+ac_sep=
+for ac_arg
+do
+ case $ac_arg in
+ -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+ | --no-cr | --no-c) ;;
+ -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+ | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
+ *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
+ ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
+ ac_configure_args="$ac_configure_args$ac_sep'$ac_arg'"
+ ac_sep=" " ;;
+ *) ac_configure_args="$ac_configure_args$ac_sep$ac_arg"
+ ac_sep=" " ;;
+ esac
+ # Get rid of the leading space.
+done
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log. We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Be sure not to use single quotes in there, as some shells,
+# such as our DU 5.0 friend, will then `close' the trap.
+trap 'exit_status=$?
+ # Save into config.log some information that might help in debugging.
+ {
+ echo
+ cat <<\_ASBOX
+## ---------------- ##
+## Cache variables. ##
+## ---------------- ##
+_ASBOX
+ echo
+ # The following way of writing the cache mishandles newlines in values,
+{
+ (set) 2>&1 |
+ case `(ac_space='"'"' '"'"'; set | grep ac_space) 2>&1` in
+ *ac_space=\ *)
+ sed -n \
+ "s/'"'"'/'"'"'\\\\'"'"''"'"'/g;
+ s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='"'"'\\2'"'"'/p"
+ ;;
+ *)
+ sed -n \
+ "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
+ ;;
+ esac;
+}
+ echo
+ if test -s confdefs.h; then
+ cat <<\_ASBOX
+## ----------- ##
+## confdefs.h. ##
+## ----------- ##
+_ASBOX
+ echo
+ sed "/^$/d" confdefs.h
+ echo
+ fi
+ test "$ac_signal" != 0 &&
+ echo "$as_me: caught signal $ac_signal"
+ echo "$as_me: exit $exit_status"
+ } >&5
+ rm -rf conftest* confdefs* core core.* *.core conf$$* $ac_clean_files &&
+ exit $exit_status
+ ' 0
+for ac_signal in 1 2 13 15; do
+ trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -rf conftest* confdefs.h
+# AIX cpp loses on an empty file, so make sure it contains at least a newline.
+echo >confdefs.h
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer explicitly selected file to automatically selected ones.
+if test -z "$CONFIG_SITE"; then
+ if test "x$prefix" != xNONE; then
+ CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
+ else
+ CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+ fi
+fi
+for ac_site_file in $CONFIG_SITE; do
+ if test -r "$ac_site_file"; then
+ { echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
+echo "$as_me: loading site script $ac_site_file" >&6;}
+ sed 's/^/| /' "$ac_site_file" >&5
+ . "$ac_site_file"
+ fi
+done
+
+if test -r "$cache_file"; then
+ # Some versions of bash will fail to source /dev/null (special
+ # files actually), so we avoid doing that.
+ if test -f "$cache_file"; then
+ { echo "$as_me:$LINENO: loading cache $cache_file" >&5
+echo "$as_me: loading cache $cache_file" >&6;}
+ case $cache_file in
+ [\\/]* | ?:[\\/]* ) . $cache_file;;
+ *) . ./$cache_file;;
+ esac
+ fi
+else
+ { echo "$as_me:$LINENO: creating cache $cache_file" >&5
+echo "$as_me: creating cache $cache_file" >&6;}
+ >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in `(set) 2>&1 |
+ sed -n 's/^ac_env_\([a-zA-Z_0-9]*\)_set=.*/\1/p'`; do
+ eval ac_old_set=\$ac_cv_env_${ac_var}_set
+ eval ac_new_set=\$ac_env_${ac_var}_set
+ eval ac_old_val="\$ac_cv_env_${ac_var}_value"
+ eval ac_new_val="\$ac_env_${ac_var}_value"
+ case $ac_old_set,$ac_new_set in
+ set,)
+ { echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+ ac_cache_corrupted=: ;;
+ ,set)
+ { echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
+echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+ ac_cache_corrupted=: ;;
+ ,);;
+ *)
+ if test "x$ac_old_val" != "x$ac_new_val"; then
+ { echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+ { echo "$as_me:$LINENO: former value: $ac_old_val" >&5
+echo "$as_me: former value: $ac_old_val" >&2;}
+ { echo "$as_me:$LINENO: current value: $ac_new_val" >&5
+echo "$as_me: current value: $ac_new_val" >&2;}
+ ac_cache_corrupted=:
+ fi;;
+ esac
+ # Pass precious variables to config.status. It doesn't matter if
+ # we pass some twice (in addition to the command line arguments).
+ if test "$ac_new_set" = set; then
+ case $ac_new_val in
+ *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\"\']*)
+ ac_arg=$ac_var=`echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"`
+ ac_configure_args="$ac_configure_args '$ac_arg'"
+ ;;
+ *) ac_configure_args="$ac_configure_args $ac_var=$ac_new_val"
+ ;;
+ esac
+ fi
+done
+if $ac_cache_corrupted; then
+ { echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
+echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+ { { echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
+echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_aux_dir=
+for ac_dir in $srcdir $srcdir/.. $srcdir/../..; do
+ if test -f $ac_dir/install-sh; then
+ ac_aux_dir=$ac_dir
+ ac_install_sh="$ac_aux_dir/install-sh -c"
+ break
+ elif test -f $ac_dir/install.sh; then
+ ac_aux_dir=$ac_dir
+ ac_install_sh="$ac_aux_dir/install.sh -c"
+ break
+ elif test -f $ac_dir/shtool; then
+ ac_aux_dir=$ac_dir
+ ac_install_sh="$ac_aux_dir/shtool install -c"
+ break
+ fi
+done
+if test -z "$ac_aux_dir"; then
+ { { echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&5
+echo "$as_me: error: cannot find install-sh or install.sh in $srcdir $srcdir/.. $srcdir/../.." >&2;}
+ { (exit 1); exit 1; }; }
+fi
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"
+ac_configure="$SHELL $ac_aux_dir/configure" # This should be Cygnus configure.
+
+# Find a good install program. We prefer a C program (faster),
+# so one script is as good as another. But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# ./install, which can be erroneously created by make from ./install.sh.
+echo "$as_me:$LINENO: checking for a BSD compatible install" >&5
+echo $ECHO_N "checking for a BSD compatible install... $ECHO_C" >&6
+if test -z "$INSTALL"; then
+if test "${ac_cv_path_install+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in
+ ./ | .// | /cC/* | \
+ /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+ /usr/ucb/* ) ;;
+ *)
+ # OSF1 and SCO ODT 3.0 have their own names for install.
+ # Don't use installbsd from OSF since it installs stuff as root
+ # by default.
+ for ac_prog in ginstall scoinst install; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+ if test $ac_prog = install &&
+ grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+ # AIX install. It has an incompatible calling convention.
+ :
+ elif test $ac_prog = install &&
+ grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+ # program-specific install script used by HP pwplus--don't use.
+ :
+ else
+ ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+ break 3
+ fi
+ fi
+ done
+ done
+ ;;
+esac
+done
+
+fi
+ if test "${ac_cv_path_install+set}" = set; then
+ INSTALL=$ac_cv_path_install
+ else
+ # As a last resort, use the slow shell script. We don't cache a
+ # path for INSTALL within a source directory, because that will
+ # break other packages using the cache if that directory is
+ # removed, or if the path is relative.
+ INSTALL=$ac_install_sh
+ fi
+fi
+echo "$as_me:$LINENO: result: $INSTALL" >&5
+echo "${ECHO_T}$INSTALL" >&6
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+echo "$as_me:$LINENO: checking whether build environment is sane" >&5
+echo $ECHO_N "checking whether build environment is sane... $ECHO_C" >&6
+# Just in case
+sleep 1
+echo timestamp > conftest.file
+# Do `set' in a subshell so we don't clobber the current shell's
+# arguments. Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+ set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
+ if test "$*" = "X"; then
+ # -L didn't work.
+ set X `ls -t $srcdir/configure conftest.file`
+ fi
+ rm -f conftest.file
+ if test "$*" != "X $srcdir/configure conftest.file" \
+ && test "$*" != "X conftest.file $srcdir/configure"; then
+
+ # If neither matched, then we have a broken ls. This can happen
+ # if, for instance, CONFIG_SHELL is bash and it inherits a
+ # broken ls alias from the environment. This has actually
+ # happened. Such a system could not be considered "sane".
+ { { echo "$as_me:$LINENO: error: ls -t appears to fail. Make sure there is not a broken
+alias in your environment" >&5
+echo "$as_me: error: ls -t appears to fail. Make sure there is not a broken
+alias in your environment" >&2;}
+ { (exit 1); exit 1; }; }
+ fi
+
+ test "$2" = conftest.file
+ )
+then
+ # Ok.
+ :
+else
+ { { echo "$as_me:$LINENO: error: newly created file is older than distributed files!
+Check your system clock" >&5
+echo "$as_me: error: newly created file is older than distributed files!
+Check your system clock" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+test "$program_prefix" != NONE &&
+ program_transform_name="s,^,$program_prefix,;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+ program_transform_name="s,\$,$program_suffix,;$program_transform_name"
+# Double any \ or $. echo might interpret backslashes.
+# By default was `s,x,x', remove it if useless.
+cat <<\_ACEOF >conftest.sed
+s/[\\$]/&&/g;s/;s,x,x,$//
+_ACEOF
+program_transform_name=`echo $program_transform_name | sed -f conftest.sed`
+rm conftest.sed
+
+# expand $ac_aux_dir to an absolute path
+am_aux_dir=`CDPATH=:; cd $ac_aux_dir && pwd`
+
+test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+# Use eval to expand $SHELL
+if eval "$MISSING --run true"; then
+ am_missing_run="$MISSING --run "
+else
+ am_missing_run=
+ am_backtick='`'
+ { echo "$as_me:$LINENO: WARNING: ${am_backtick}missing' script is too old or missing" >&5
+echo "$as_me: WARNING: ${am_backtick}missing' script is too old or missing" >&2;}
+fi
+
+for ac_prog in gawk mawk nawk awk
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_AWK+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$AWK"; then
+ ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_AWK="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+ echo "$as_me:$LINENO: result: $AWK" >&5
+echo "${ECHO_T}$AWK" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$AWK" && break
+done
+
+echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo $ECHO_N "checking whether ${MAKE-make} sets \${MAKE}... $ECHO_C" >&6
+set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y,./+-,__p_,'`
+if eval "test \"\${ac_cv_prog_make_${ac_make}_set+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.make <<\_ACEOF
+all:
+ @echo 'ac_maketemp="${MAKE}"'
+_ACEOF
+# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
+eval `${MAKE-make} -f conftest.make 2>/dev/null | grep temp=`
+if test -n "$ac_maketemp"; then
+ eval ac_cv_prog_make_${ac_make}_set=yes
+else
+ eval ac_cv_prog_make_${ac_make}_set=no
+fi
+rm -f conftest.make
+fi
+if eval "test \"`echo '$ac_cv_prog_make_'${ac_make}_set`\" = yes"; then
+ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+ SET_MAKE=
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+ SET_MAKE="MAKE=${MAKE-make}"
+fi
+
+# Check whether --enable-dependency-tracking or --disable-dependency-tracking was given.
+if test "${enable_dependency_tracking+set}" = set; then
+ enableval="$enable_dependency_tracking"
+
+fi;
+if test "x$enable_dependency_tracking" != xno; then
+ am_depcomp="$ac_aux_dir/depcomp"
+ AMDEPBACKSLASH='\'
+fi
+
+if test "x$enable_dependency_tracking" != xno; then
+ AMDEP_TRUE=
+ AMDEP_FALSE='#'
+else
+ AMDEP_TRUE='#'
+ AMDEP_FALSE=
+fi
+
+rm -f .deps 2>/dev/null
+mkdir .deps 2>/dev/null
+if test -d .deps; then
+ DEPDIR=.deps
+else
+ # MS-DOS does not allow filenames that begin with a dot.
+ DEPDIR=_deps
+fi
+rmdir .deps 2>/dev/null
+
+# test to see if srcdir already configured
+if test "`CDPATH=:; cd $srcdir && pwd`" != "`pwd`" &&
+ test -f $srcdir/config.status; then
+ { { echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
+echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+# Define the identity of the package.
+PACKAGE=gzip
+VERSION=1.3.2
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE "$PACKAGE"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define VERSION "$VERSION"
+_ACEOF
+
+# Autoconf 2.50 wants to disallow AM_ names. We explicitly allow
+# the ones we care about.
+
+# Autoconf 2.50 always computes EXEEXT. However we need to be
+# compatible with 2.13, for now. So we always define EXEEXT, but we
+# don't compute it.
+
+# Similar for OBJEXT -- only we only use OBJEXT if the user actually
+# requests that it be used. This is a bit dumb.
+: ${OBJEXT=o}
+
+# Some tools Automake needs.
+
+ACLOCAL=${ACLOCAL-"${am_missing_run}aclocal"}
+
+AUTOCONF=${AUTOCONF-"${am_missing_run}autoconf"}
+
+AUTOMAKE=${AUTOMAKE-"${am_missing_run}automake"}
+
+AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
+
+MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
+
+AMTAR=${AMTAR-"${am_missing_run}tar"}
+
+install_sh=${install_sh-"$am_aux_dir/install-sh"}
+
+INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
+
+# We need awk for the "check" target. The system "awk" is bad on
+# some platforms.
+
+ ac_config_headers="$ac_config_headers config.h"
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}gcc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+ ac_ct_CC=$CC
+ # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="gcc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ CC=$ac_ct_CC
+else
+ CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+ ac_ct_CC=$CC
+ # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ CC=$ac_ct_CC
+else
+ CC="$ac_cv_prog_CC"
+fi
+
+fi
+if test -z "$CC"; then
+ # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+ ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+ ac_prog_rejected=yes
+ continue
+ fi
+ ac_cv_prog_CC="cc"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+if test $ac_prog_rejected = yes; then
+ # We found a bogon in the path, so make sure we never use it.
+ set dummy $ac_cv_prog_CC
+ shift
+ if test $# != 0; then
+ # We chose a different compiler from the bogus one.
+ # However, it has the same basename, so the bogon will be chosen
+ # first if we set CC to just the basename; use the full file name.
+ shift
+ set dummy "$as_dir/$ac_word" ${1+"$@"}
+ shift
+ ac_cv_prog_CC="$@"
+ fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+fi
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ for ac_prog in cl
+ do
+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ echo "$as_me:$LINENO: result: $CC" >&5
+echo "${ECHO_T}$CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$CC" && break
+ done
+fi
+if test -z "$CC"; then
+ ac_ct_CC=$CC
+ for ac_prog in cl
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="$ac_prog"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+echo "${ECHO_T}$ac_ct_CC" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ test -n "$ac_ct_CC" && break
+done
+
+ CC=$ac_ct_CC
+fi
+
+fi
+
+test -z "$CC" && { { echo "$as_me:$LINENO: error: no acceptable cc found in \$PATH" >&5
+echo "$as_me: error: no acceptable cc found in \$PATH" >&2;}
+ { (exit 1); exit 1; }; }
+
+# Provide some information about the compiler.
+echo "$as_me:$LINENO:" \
+ "checking for C compiler version" >&5
+ac_compiler=`set X $ac_compile; echo $2`
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler --version </dev/null >&5\"") >&5
+ (eval $ac_compiler --version </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -v </dev/null >&5\"") >&5
+ (eval $ac_compiler -v </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+{ (eval echo "$as_me:$LINENO: \"$ac_compiler -V </dev/null >&5\"") >&5
+ (eval $ac_compiler -V </dev/null >&5) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }
+
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.exe"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+echo "$as_me:$LINENO: checking for C compiler default output" >&5
+echo $ECHO_N "checking for C compiler default output... $ECHO_C" >&6
+ac_link_default=`echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+if { (eval echo "$as_me:$LINENO: \"$ac_link_default\"") >&5
+ (eval $ac_link_default) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; then
+ # Find the output, starting from the most likely. This scheme is
+# not robust to junk in `.', hence go to wildcards (a.*) only as a last
+# resort.
+for ac_file in `ls a_out.exe a.exe conftest.exe 2>/dev/null;
+ ls a.out conftest 2>/dev/null;
+ ls a.* conftest.* 2>/dev/null`; do
+ case $ac_file in
+ *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb | *.xSYM ) ;;
+ a.out ) # We found the default executable, but exeext='' is most
+ # certainly right.
+ break;;
+ *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+ # FIXME: I believe we export ac_cv_exeext for Libtool --akim.
+ export ac_cv_exeext
+ break;;
+ * ) break;;
+ esac
+done
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+{ { echo "$as_me:$LINENO: error: C compiler cannot create executables" >&5
+echo "$as_me: error: C compiler cannot create executables" >&2;}
+ { (exit 77); exit 77; }; }
+fi
+
+ac_exeext=$ac_cv_exeext
+echo "$as_me:$LINENO: result: $ac_file" >&5
+echo "${ECHO_T}$ac_file" >&6
+
+# Check the compiler produces executables we can run. If not, either
+# the compiler is broken, or we cross compile.
+echo "$as_me:$LINENO: checking whether the C compiler works" >&5
+echo $ECHO_N "checking whether the C compiler works... $ECHO_C" >&6
+# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
+# If not cross compiling, check that we can run a simple program.
+if test "$cross_compiling" != yes; then
+ if { ac_try='./$ac_file'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ cross_compiling=no
+ else
+ if test "$cross_compiling" = maybe; then
+ cross_compiling=yes
+ else
+ { { echo "$as_me:$LINENO: error: cannot run C compiled programs.
+If you meant to cross compile, use \`--host'." >&5
+echo "$as_me: error: cannot run C compiled programs.
+If you meant to cross compile, use \`--host'." >&2;}
+ { (exit 1); exit 1; }; }
+ fi
+ fi
+fi
+echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+rm -f a.out a.exe conftest$ac_cv_exeext
+ac_clean_files=$ac_clean_files_save
+# Check the compiler produces executables we can run. If not, either
+# the compiler is broken, or we cross compile.
+echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
+echo $ECHO_N "checking whether we are cross compiling... $ECHO_C" >&6
+echo "$as_me:$LINENO: result: $cross_compiling" >&5
+echo "${ECHO_T}$cross_compiling" >&6
+
+echo "$as_me:$LINENO: checking for executable suffix" >&5
+echo $ECHO_N "checking for executable suffix... $ECHO_C" >&6
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; then
+ # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'. For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in `(ls conftest.exe; ls conftest; ls conftest.*) 2>/dev/null`; do
+ case $ac_file in
+ *.$ac_ext | *.o | *.obj | *.xcoff | *.tds | *.d | *.pdb ) ;;
+ *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+ export ac_cv_exeext
+ break;;
+ * ) break;;
+ esac
+done
+else
+ { { echo "$as_me:$LINENO: error: cannot compute EXEEXT: cannot compile and link" >&5
+echo "$as_me: error: cannot compute EXEEXT: cannot compile and link" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest$ac_cv_exeext
+echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
+echo "${ECHO_T}$ac_cv_exeext" >&6
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+echo "$as_me:$LINENO: checking for object suffix" >&5
+echo $ECHO_N "checking for object suffix... $ECHO_C" >&6
+if test "${ac_cv_objext+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; then
+ for ac_file in `(ls conftest.o conftest.obj; ls conftest.*) 2>/dev/null`; do
+ case $ac_file in
+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb ) ;;
+ *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+ break;;
+ esac
+done
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+{ { echo "$as_me:$LINENO: error: cannot compute OBJEXT: cannot compile" >&5
+echo "$as_me: error: cannot compute OBJEXT: cannot compile" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
+echo "${ECHO_T}$ac_cv_objext" >&6
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+echo $ECHO_N "checking whether we are using the GNU C compiler... $ECHO_C" >&6
+if test "${ac_cv_c_compiler_gnu+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+#ifndef __GNUC__
+ choke me
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_compiler_gnu=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_compiler_gnu=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+echo "${ECHO_T}$ac_cv_c_compiler_gnu" >&6
+GCC=`test $ac_compiler_gnu = yes && echo yes`
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+CFLAGS="-g"
+echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+echo $ECHO_N "checking whether $CC accepts -g... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_g+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_cc_g=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_prog_cc_g=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_g" >&6
+if test "$ac_test_CFLAGS" = set; then
+ CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+ if test "$GCC" = yes; then
+ CFLAGS="-g -O2"
+ else
+ CFLAGS="-g"
+ fi
+else
+ if test "$GCC" = yes; then
+ CFLAGS="-O2"
+ else
+ CFLAGS=
+ fi
+fi
+# Some people use a C++ compiler to compile C. Since we use `exit',
+# in C++ we need to declare it. In case someone uses the same compiler
+# for both compiling C and C++ we need to have the C++ compiler decide
+# the declaration of exit, since it's the most demanding environment.
+cat >conftest.$ac_ext <<_ACEOF
+#ifndef __cplusplus
+ choke me
+#endif
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ for ac_declaration in \
+ ''\
+ '#include <stdlib.h>' \
+ 'extern "C" void std::exit (int) throw (); using std::exit;' \
+ 'extern "C" void std::exit (int); using std::exit;' \
+ 'extern "C" void exit (int) throw ();' \
+ 'extern "C" void exit (int);' \
+ 'void exit (int);'
+do
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+$ac_declaration
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+continue
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_declaration
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+exit (42);
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+done
+rm -f conftest*
+if test -n "$ac_declaration"; then
+ echo '#ifdef __cplusplus' >>confdefs.h
+ echo $ac_declaration >>confdefs.h
+ echo '#endif' >>confdefs.h
+fi
+
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_config_commands="$ac_config_commands default-1"
+
+am_make=${MAKE-make}
+cat > confinc << 'END'
+doit:
+ @echo done
+END
+# If we don't find an include directive, just comment out the code.
+echo "$as_me:$LINENO: checking for style of include used by $am_make" >&5
+echo $ECHO_N "checking for style of include used by $am_make... $ECHO_C" >&6
+am__include='#'
+am__quote=
+_am_result=none
+# First try GNU make style include.
+echo "include confinc" > confmf
+# We grep out `Entering directory' and `Leaving directory'
+# messages which can occur if `w' ends up in MAKEFLAGS.
+# In particular we don't look at `^make:' because GNU make might
+# be invoked under some other name (usually "gmake"), in which
+# case it prints its new name instead of `make'.
+if test "`$am_make -s -f confmf 2> /dev/null | fgrep -v 'ing directory'`" = "done"; then
+ am__include=include
+ am__quote=
+ _am_result=GNU
+fi
+# Now try BSD make style include.
+if test "$am__include" = "#"; then
+ echo '.include "confinc"' > confmf
+ if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
+ am__include=.include
+ am__quote='"'
+ _am_result=BSD
+ fi
+fi
+
+echo "$as_me:$LINENO: result: $_am_result" >&5
+echo "${ECHO_T}$_am_result" >&6
+rm -f confinc confmf
+
+depcc="$CC" am_compiler_list=
+
+echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+echo $ECHO_N "checking dependency style of $depcc... $ECHO_C" >&6
+if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+ # We make a subdir and do the tests there. Otherwise we can end up
+ # making bogus files that we don't know about and never remove. For
+ # instance it was reported that on HP-UX the gcc test will end up
+ # making a dummy file named `D' -- because `-MD' means `put the output
+ # in D'.
+ mkdir conftest.dir
+ # Copy depcomp to subdir because otherwise we won't find it if we're
+ # using a relative directory.
+ cp "$am_depcomp" conftest.dir
+ cd conftest.dir
+
+ am_cv_CC_dependencies_compiler_type=none
+ if test "$am_compiler_list" = ""; then
+ am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+ fi
+ for depmode in $am_compiler_list; do
+ # We need to recreate these files for each test, as the compiler may
+ # overwrite some of them when testing with obscure command lines.
+ # This happens at least with the AIX C compiler.
+ echo '#include "conftest.h"' > conftest.c
+ echo 'int i;' > conftest.h
+ echo "${am__include} ${am__quote}conftest.Po${am__quote}" > confmf
+
+ case $depmode in
+ nosideeffect)
+ # after this tag, mechanisms are not by side-effect, so they'll
+ # only be used when explicitly requested
+ if test "x$enable_dependency_tracking" = xyes; then
+ continue
+ else
+ break
+ fi
+ ;;
+ none) break ;;
+ esac
+ # We check with `-c' and `-o' for the sake of the "dashmstdout"
+ # mode. It turns out that the SunPro C++ compiler does not properly
+ # handle `-M -o', and we need to detect this.
+ if depmode=$depmode \
+ source=conftest.c object=conftest.o \
+ depfile=conftest.Po tmpdepfile=conftest.TPo \
+ $SHELL ./depcomp $depcc -c conftest.c -o conftest.o >/dev/null 2>&1 &&
+ grep conftest.h conftest.Po > /dev/null 2>&1 &&
+ ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+ am_cv_CC_dependencies_compiler_type=$depmode
+ break
+ fi
+ done
+
+ cd ..
+ rm -rf conftest.dir
+else
+ am_cv_CC_dependencies_compiler_type=none
+fi
+
+fi
+echo "$as_me:$LINENO: result: $am_cv_CC_dependencies_compiler_type" >&5
+echo "${ECHO_T}$am_cv_CC_dependencies_compiler_type" >&6
+CCDEPMODE="depmode=$am_cv_CC_dependencies_compiler_type"
+
+echo "$as_me:$LINENO: checking whether ln -s works" >&5
+echo $ECHO_N "checking whether ln -s works... $ECHO_C" >&6
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+ echo "$as_me:$LINENO: result: no, using $LN_S" >&5
+echo "${ECHO_T}no, using $LN_S" >&6
+fi
+
+echo "$as_me:$LINENO: checking for a POSIX-compliant shell" >&5
+echo $ECHO_N "checking for a POSIX-compliant shell... $ECHO_C" >&6
+ if test "${ac_cv_path_shell+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_command='
+ # Test the noclobber option, using the portable POSIX.2 syntax.
+ set -C
+ rm -f conftest.c
+ >conftest.c || exit
+ >|conftest.c || exit
+ !>conftest.c || exit
+ '
+ ac_cv_path_shell=no
+
+ case $SHELL in
+ /*)
+ rm -f conftest.c
+ if ("$SHELL" -c "$ac_command") 2>/dev/null; then
+ ac_cv_path_shell=$SHELL
+ fi;;
+ esac
+
+ case $ac_cv_path_shell in
+ no)
+ # Prefer shells that are more likely to be installed in the
+ # same place on all hosts of this platform. Therefore, prefer
+ # shells in /bin and /usr/bin to shells in the installer's
+ # PATH. Also, loop through PATH first and then through
+ # shells, since less-"nice" shells in /bin and /usr/bin are
+ # more likely to be installed than "nicer" shells elsewhere.
+ as_save_IFS=$IFS; IFS=:
+ for as_dir in /bin /usr/bin $PATH
+ do
+ IFS=$as_save_IFS
+ case $as_dir in
+ /*)
+ for ac_base in sh bash ksh sh5; do
+ rm -f conftest.c
+ if ("$as_dir/$ac_base" -c "$ac_command") 2>/dev/null; then
+ ac_cv_path_shell=$as_dir/$ac_base
+ break
+ fi
+ done
+ case $ac_cv_path_shell in
+ /*) break;;
+ esac;;
+ esac
+ done
+ rm -f conftest.c;;
+ esac
+fi
+
+ echo "$as_me:$LINENO: result: $ac_cv_path_shell" >&5
+echo "${ECHO_T}$ac_cv_path_shell" >&6
+ SHELL=$ac_cv_path_shell
+ if test "$SHELL" = no; then
+ SHELL=/bin/sh
+ { echo "$as_me:$LINENO: WARNING: using $SHELL, even though it does not conform to POSIX" >&5
+echo "$as_me: WARNING: using $SHELL, even though it does not conform to POSIX" >&2;}
+ fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
+echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+ CPP=
+fi
+if test -z "$CPP"; then
+ if test "${ac_cv_prog_CPP+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ # Double quotes because CPP needs to be expanded
+ for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+ do
+ ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <assert.h>
+ Syntax error
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ egrep -v '^ *\+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether non-existent headers
+ # can be detected and how.
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ egrep -v '^ *\+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ # Broken: success on invalid input.
+continue
+else
+ echo "$as_me: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+ break
+fi
+
+ done
+ ac_cv_prog_CPP=$CPP
+
+fi
+ CPP=$ac_cv_prog_CPP
+else
+ ac_cv_prog_CPP=$CPP
+fi
+echo "$as_me:$LINENO: result: $CPP" >&5
+echo "${ECHO_T}$CPP" >&6
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <assert.h>
+ Syntax error
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ egrep -v '^ *\+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ :
+else
+ echo "$as_me: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether non-existent headers
+ # can be detected and how.
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <ac_nonexistent.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ egrep -v '^ *\+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ # Broken: success on invalid input.
+continue
+else
+ echo "$as_me: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then
+ :
+else
+ { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check" >&5
+echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+echo "$as_me:$LINENO: checking for AIX" >&5
+echo $ECHO_N "checking for AIX... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#ifdef _AIX
+ yes
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ egrep "yes" >/dev/null 2>&1; then
+ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+cat >>confdefs.h <<\_ACEOF
+#define _ALL_SOURCE 1
+_ACEOF
+
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+rm -f conftest*
+
+echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
+if test "${ac_cv_header_stdc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ egrep -v '^ *\+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_cv_header_stdc=yes
+else
+ echo "$as_me: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ ac_cv_header_stdc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+ # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ egrep "memchr" >/dev/null 2>&1; then
+ :
+else
+ ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+ # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ egrep "free" >/dev/null 2>&1; then
+ :
+else
+ ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+ # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+ if test "$cross_compiling" = yes; then
+ :
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <ctype.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) (('a' <= (c) && (c) <= 'i') \
+ || ('j' <= (c) && (c) <= 'r') \
+ || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+ int i;
+ for (i = 0; i < 256; i++)
+ if (XOR (islower (i), ISLOWER (i))
+ || toupper (i) != TOUPPER (i))
+ exit(2);
+ exit (0);
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+( exit $ac_status )
+ac_cv_header_stdc=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+echo "${ECHO_T}$ac_cv_header_stdc" >&6
+if test $ac_cv_header_stdc = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STDC_HEADERS 1
+_ACEOF
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+ inttypes.h stdint.h unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_Header=yes"
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$as_ac_Header=no"
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+if test "${ac_cv_header_minix_config_h+set}" = set; then
+ echo "$as_me:$LINENO: checking for minix/config.h" >&5
+echo $ECHO_N "checking for minix/config.h... $ECHO_C" >&6
+if test "${ac_cv_header_minix_config_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_minix_config_h" >&5
+echo "${ECHO_T}$ac_cv_header_minix_config_h" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking minix/config.h usability" >&5
+echo $ECHO_N "checking minix/config.h usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <minix/config.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking minix/config.h presence" >&5
+echo $ECHO_N "checking minix/config.h presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <minix/config.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ egrep -v '^ *\+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+ yes:no )
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: minix/config.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: minix/config.h: proceeding with the preprocessor's result" >&2;};;
+ no:yes )
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: present but cannot be compiled." >&5
+echo "$as_me: WARNING: minix/config.h: present but cannot be compiled." >&2;}
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: minix/config.h: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: minix/config.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: minix/config.h: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for minix/config.h" >&5
+echo $ECHO_N "checking for minix/config.h... $ECHO_C" >&6
+if test "${ac_cv_header_minix_config_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_header_minix_config_h=$ac_header_preproc
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_minix_config_h" >&5
+echo "${ECHO_T}$ac_cv_header_minix_config_h" >&6
+
+fi
+if test $ac_cv_header_minix_config_h = yes; then
+ MINIX=yes
+else
+ MINIX=
+fi
+
+if test "$MINIX" = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define _POSIX_SOURCE 1
+_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
+#define _POSIX_1_SOURCE 2
+_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
+#define _MINIX 1
+_ACEOF
+
+fi
+
+# Check whether --enable-largefile or --disable-largefile was given.
+if test "${enable_largefile+set}" = set; then
+ enableval="$enable_largefile"
+
+fi;
+if test "$enable_largefile" != no; then
+
+ echo "$as_me:$LINENO: checking for special C compiler options needed for large files" >&5
+echo $ECHO_N "checking for special C compiler options needed for large files... $ECHO_C" >&6
+if test "${ac_cv_sys_largefile_CC+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_sys_largefile_CC=no
+ if test "$GCC" != yes; then
+ ac_save_CC=$CC
+ while :; do
+ # IRIX 6.2 and later do not support large files by default,
+ # so use the C compiler's -n32 option if that helps.
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+ rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext
+ CC="$CC -n32"
+ rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_sys_largefile_CC=' -n32'; break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext
+ break
+ done
+ CC=$ac_save_CC
+ rm -f conftest.$ac_ext
+ fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_largefile_CC" >&5
+echo "${ECHO_T}$ac_cv_sys_largefile_CC" >&6
+ if test "$ac_cv_sys_largefile_CC" != no; then
+ CC=$CC$ac_cv_sys_largefile_CC
+ fi
+
+ echo "$as_me:$LINENO: checking for _FILE_OFFSET_BITS value needed for large files" >&5
+echo $ECHO_N "checking for _FILE_OFFSET_BITS value needed for large files... $ECHO_C" >&6
+if test "${ac_cv_sys_file_offset_bits+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ while :; do
+ ac_cv_sys_file_offset_bits=no
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#define _FILE_OFFSET_BITS 64
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_sys_file_offset_bits=64; break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ break
+done
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_file_offset_bits" >&5
+echo "${ECHO_T}$ac_cv_sys_file_offset_bits" >&6
+if test "$ac_cv_sys_file_offset_bits" != no; then
+
+cat >>confdefs.h <<_ACEOF
+#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits
+_ACEOF
+
+fi
+rm -f conftest*
+ echo "$as_me:$LINENO: checking for _LARGE_FILES value needed for large files" >&5
+echo $ECHO_N "checking for _LARGE_FILES value needed for large files... $ECHO_C" >&6
+if test "${ac_cv_sys_large_files+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ while :; do
+ ac_cv_sys_large_files=no
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#define _LARGE_FILES 1
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_sys_large_files=1; break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+ break
+done
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_large_files" >&5
+echo "${ECHO_T}$ac_cv_sys_large_files" >&6
+if test "$ac_cv_sys_large_files" != no; then
+
+cat >>confdefs.h <<_ACEOF
+#define _LARGE_FILES $ac_cv_sys_large_files
+_ACEOF
+
+fi
+rm -f conftest*
+fi
+
+echo checking for underline in external names
+test -z "$ASCPP" -a -f /lib/cpp && ASCPP=/lib/cpp
+test -z "$ASCPP" && ASCPP="$CC -E"
+cat > conftest.c <<EOF
+int foo() {return 0;}
+EOF
+eval "$CC -c conftest.c > /dev/null 2>&1"
+if nm conftest.$OBJEXT | grep _foo > /dev/null 2>&1 ; then
+ :
+else
+ ASCPP="${ASCPP} -DNO_UNDERLINE"
+fi
+rm -f _match.$OBJEXT conftest.c conftest.$OBJEXT
+if echo "$DEFS" | grep NO_ASM >/dev/null; then
+ :
+else
+ echo checking for assembler
+ if eval "$ASCPP $srcdir/match.S > _match.s 2>/dev/null"; then
+ if test ! -s _match.s || grep error < _match.s > /dev/null; then
+ :
+ elif eval "$CC -c _match.s >/dev/null 2>&1" && test -f _match.$OBJEXT; then
+
+cat >>confdefs.h <<\_ACEOF
+#define ASMV
+_ACEOF
+
+ LIBOBJS="$LIBOBJS match.$OBJEXT"
+ # Work around automake 1.4 bug
+ : LIBOBJS="$LIBOBJS match.o"
+ fi
+ fi
+ rm -f _match.s _match.$OBJEXT
+fi
+
+echo "$as_me:$LINENO: checking for library containing strerror" >&5
+echo $ECHO_N "checking for library containing strerror... $ECHO_C" >&6
+if test "${ac_cv_search_strerror+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_func_search_save_LIBS=$LIBS
+ac_cv_search_strerror=no
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char strerror ();
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+strerror ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_search_strerror="none required"
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test "$ac_cv_search_strerror" = no; then
+ for ac_lib in cposix; do
+ LIBS="-l$ac_lib $ac_func_search_save_LIBS"
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char strerror ();
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+strerror ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_search_strerror="-l$ac_lib"
+break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+ done
+fi
+LIBS=$ac_func_search_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_search_strerror" >&5
+echo "${ECHO_T}$ac_cv_search_strerror" >&6
+if test "$ac_cv_search_strerror" != no; then
+ test "$ac_cv_search_strerror" = "none required" || LIBS="$ac_cv_search_strerror $LIBS"
+
+fi
+
+echo "$as_me:$LINENO: checking for $CC option to accept ANSI C" >&5
+echo $ECHO_N "checking for $CC option to accept ANSI C... $ECHO_C" >&6
+if test "${ac_cv_prog_cc_stdc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_cv_prog_cc_stdc=no
+ac_save_CC=$CC
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+ char **p;
+ int i;
+{
+ return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+ char *s;
+ va_list v;
+ va_start (v,p);
+ s = g (p, va_arg (v,int));
+ va_end (v);
+ return s;
+}
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
+ ;
+ return 0;
+}
+_ACEOF
+# Don't try gcc -ansi; that turns off useful extensions and
+# breaks some systems' header files.
+# AIX -qlanglvl=ansi
+# Ultrix and OSF/1 -std1
+# HP-UX 10.20 and later -Ae
+# HP-UX older versions -Aa -D_HPUX_SOURCE
+# SVR4 -Xc -D__EXTENSIONS__
+for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+ CC="$ac_save_CC $ac_arg"
+ rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_prog_cc_stdc=$ac_arg
+break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext
+done
+rm -f conftest.$ac_ext conftest.$ac_objext
+CC=$ac_save_CC
+
+fi
+
+case "x$ac_cv_prog_cc_stdc" in
+ x|xno)
+ echo "$as_me:$LINENO: result: none needed" >&5
+echo "${ECHO_T}none needed" >&6 ;;
+ *)
+ echo "$as_me:$LINENO: result: $ac_cv_prog_cc_stdc" >&5
+echo "${ECHO_T}$ac_cv_prog_cc_stdc" >&6
+ CC="$CC $ac_cv_prog_cc_stdc" ;;
+esac
+
+echo "$as_me:$LINENO: checking for an ANSI C-conforming const" >&5
+echo $ECHO_N "checking for an ANSI C-conforming const... $ECHO_C" >&6
+if test "${ac_cv_c_const+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+/* FIXME: Include the comments suggested by Paul. */
+#ifndef __cplusplus
+ /* Ultrix mips cc rejects this. */
+ typedef int charset[2];
+ const charset x;
+ /* SunOS 4.1.1 cc rejects this. */
+ char const *const *ccp;
+ char **p;
+ /* NEC SVR4.0.2 mips cc rejects this. */
+ struct point {int x, y;};
+ static struct point const zero = {0,0};
+ /* AIX XL C 1.02.0.0 rejects this.
+ It does not let you subtract one const X* pointer from another in
+ an arm of an if-expression whose if-part is not a constant
+ expression */
+ const char *g = "string";
+ ccp = &g + (g ? g-g : 0);
+ /* HPUX 7.0 cc rejects these. */
+ ++ccp;
+ p = (char**) ccp;
+ ccp = (char const *const *) p;
+ { /* SCO 3.2v4 cc rejects this. */
+ char *t;
+ char const *s = 0 ? (char *) 0 : (char const *) 0;
+
+ *t++ = 0;
+ }
+ { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */
+ int x[] = {25, 17};
+ const int *foo = &x[0];
+ ++foo;
+ }
+ { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
+ typedef const int *iptr;
+ iptr p = 0;
+ ++p;
+ }
+ { /* AIX XL C 1.02.0.0 rejects this saying
+ "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
+ struct s { int j; const int *ap[3]; };
+ struct s *b; b->j = 5;
+ }
+ { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
+ const int foo = 10;
+ }
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_c_const=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_c_const=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_const" >&5
+echo "${ECHO_T}$ac_cv_c_const" >&6
+if test $ac_cv_c_const = no; then
+
+cat >>confdefs.h <<\_ACEOF
+#define const
+_ACEOF
+
+fi
+
+echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6
+if test "${ac_cv_header_stdc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ egrep -v '^ *\+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_cv_header_stdc=yes
+else
+ echo "$as_me: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ ac_cv_header_stdc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+ # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ egrep "memchr" >/dev/null 2>&1; then
+ :
+else
+ ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+ # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ egrep "free" >/dev/null 2>&1; then
+ :
+else
+ ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+ # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+ if test "$cross_compiling" = yes; then
+ :
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <ctype.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) (('a' <= (c) && (c) <= 'i') \
+ || ('j' <= (c) && (c) <= 'r') \
+ || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+ int i;
+ for (i = 0; i < 256; i++)
+ if (XOR (islower (i), ISLOWER (i))
+ || toupper (i) != TOUPPER (i))
+ exit(2);
+ exit (0);
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ :
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+( exit $ac_status )
+ac_cv_header_stdc=no
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+echo "${ECHO_T}$ac_cv_header_stdc" >&6
+if test $ac_cv_header_stdc = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define STDC_HEADERS 1
+_ACEOF
+
+fi
+
+for ac_header in fcntl.h limits.h memory.h \
+ stdlib.h string.h sys/utime.h time.h unistd.h utime.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_header_compiler=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ egrep -v '^ *\+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+ yes:no )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+ no:yes )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled." >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled." >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
+fi
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+for ac_func in lstat utime
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below. */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+char (*f) ();
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+f = $ac_func;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$as_ac_var=no"
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+for ac_func in rpmatch
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below. */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+char (*f) ();
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+f = $ac_func;
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$as_ac_var=no"
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+else
+ LIBOBJS="$LIBOBJS $ac_func.$ac_objext"
+fi
+done
+
+ac_header_dirent=no
+for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
+ as_ac_Header=`echo "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_hdr that defines DIR" >&5
+echo $ECHO_N "checking for $ac_hdr that defines DIR... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <$ac_hdr>
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+if ((DIR *) 0)
+return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_Header=yes"
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$as_ac_Header=no"
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_hdr" | $as_tr_cpp` 1
+_ACEOF
+
+ac_header_dirent=$ac_hdr; break
+fi
+
+done
+# Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
+if test $ac_header_dirent = dirent.h; then
+ echo "$as_me:$LINENO: checking for library containing opendir" >&5
+echo $ECHO_N "checking for library containing opendir... $ECHO_C" >&6
+if test "${ac_cv_search_opendir+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_func_search_save_LIBS=$LIBS
+ac_cv_search_opendir=no
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char opendir ();
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+opendir ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_search_opendir="none required"
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test "$ac_cv_search_opendir" = no; then
+ for ac_lib in dir; do
+ LIBS="-l$ac_lib $ac_func_search_save_LIBS"
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char opendir ();
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+opendir ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_search_opendir="-l$ac_lib"
+break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+ done
+fi
+LIBS=$ac_func_search_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_search_opendir" >&5
+echo "${ECHO_T}$ac_cv_search_opendir" >&6
+if test "$ac_cv_search_opendir" != no; then
+ test "$ac_cv_search_opendir" = "none required" || LIBS="$ac_cv_search_opendir $LIBS"
+
+fi
+
+else
+ echo "$as_me:$LINENO: checking for library containing opendir" >&5
+echo $ECHO_N "checking for library containing opendir... $ECHO_C" >&6
+if test "${ac_cv_search_opendir+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_func_search_save_LIBS=$LIBS
+ac_cv_search_opendir=no
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char opendir ();
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+opendir ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_search_opendir="none required"
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+if test "$ac_cv_search_opendir" = no; then
+ for ac_lib in x; do
+ LIBS="-l$ac_lib $ac_func_search_save_LIBS"
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char opendir ();
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+opendir ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_search_opendir="-l$ac_lib"
+break
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+ done
+fi
+LIBS=$ac_func_search_save_LIBS
+fi
+echo "$as_me:$LINENO: result: $ac_cv_search_opendir" >&5
+echo "${ECHO_T}$ac_cv_search_opendir" >&6
+if test "$ac_cv_search_opendir" != no; then
+ test "$ac_cv_search_opendir" = "none required" || LIBS="$ac_cv_search_opendir $LIBS"
+
+fi
+
+fi
+
+echo "$as_me:$LINENO: checking return type of signal handlers" >&5
+echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6
+if test "${ac_cv_type_signal+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <sys/types.h>
+#include <signal.h>
+#ifdef signal
+# undef signal
+#endif
+#ifdef __cplusplus
+extern "C" void (*signal (int, void (*)(int)))(int);
+#else
+void (*signal ()) ();
+#endif
+
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+int i;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_signal=void
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_signal=int
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_signal" >&5
+echo "${ECHO_T}$ac_cv_type_signal" >&6
+
+cat >>confdefs.h <<_ACEOF
+#define RETSIGTYPE $ac_cv_type_signal
+_ACEOF
+
+echo "$as_me:$LINENO: checking for size_t" >&5
+echo $ECHO_N "checking for size_t... $ECHO_C" >&6
+if test "${ac_cv_type_size_t+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+if ((size_t *) 0)
+ return 0;
+if (sizeof (size_t))
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_size_t=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_size_t=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_size_t" >&5
+echo "${ECHO_T}$ac_cv_type_size_t" >&6
+if test $ac_cv_type_size_t = yes; then
+ :
+else
+
+cat >>confdefs.h <<_ACEOF
+#define size_t unsigned
+_ACEOF
+
+fi
+
+echo "$as_me:$LINENO: checking for off_t" >&5
+echo $ECHO_N "checking for off_t... $ECHO_C" >&6
+if test "${ac_cv_type_off_t+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#ifdef F77_DUMMY_MAIN
+# ifdef __cplusplus
+ extern "C"
+# endif
+ int F77_DUMMY_MAIN() { return 1; }
+#endif
+int
+main ()
+{
+if ((off_t *) 0)
+ return 0;
+if (sizeof (off_t))
+ return 0;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest.$ac_objext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_type_off_t=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_type_off_t=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_type_off_t" >&5
+echo "${ECHO_T}$ac_cv_type_off_t" >&6
+if test $ac_cv_type_off_t = yes; then
+ :
+else
+
+cat >>confdefs.h <<_ACEOF
+#define off_t long
+_ACEOF
+
+fi
+
+echo "$as_me:$LINENO: checking whether #! works in shell scripts" >&5
+echo $ECHO_N "checking whether #! works in shell scripts... $ECHO_C" >&6
+if test "${ac_cv_sys_interpreter+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ echo '#! /bin/cat
+exit 69
+' >conftest
+chmod u+x conftest
+(SHELL=/bin/sh; export SHELL; ./conftest >/dev/null)
+if test $? -ne 69; then
+ ac_cv_sys_interpreter=yes
+else
+ ac_cv_sys_interpreter=no
+fi
+rm -f conftest
+fi
+echo "$as_me:$LINENO: result: $ac_cv_sys_interpreter" >&5
+echo "${ECHO_T}$ac_cv_sys_interpreter" >&6
+interpval=$ac_cv_sys_interpreter
+
+case $interpval in
+yes) SEDCMD='1d';;
+*) SEDCMD='';;
+esac
+
+if test "x$prefix" = xNONE; then
+ echo $ECHO_N "checking for prefix by$ECHO_C" >&6
+ # Extract the first word of "gzip", so it can be a program name with args.
+set dummy gzip; ac_word=$2
+echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
+if test "${ac_cv_path_GZIP+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ case $GZIP in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_GZIP="$GZIP" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_path_GZIP="$as_dir/$ac_word$ac_exec_ext"
+ echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+done
+
+ ;;
+esac
+fi
+GZIP=$ac_cv_path_GZIP
+
+if test -n "$GZIP"; then
+ echo "$as_me:$LINENO: result: $GZIP" >&5
+echo "${ECHO_T}$GZIP" >&6
+else
+ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
+ if test -n "$ac_cv_path_GZIP"; then
+ prefix=`(dirname "$ac_cv_path_GZIP") 2>/dev/null ||
+$as_expr X"$ac_cv_path_GZIP" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_cv_path_GZIP" : 'X\(//\)[^/]' \| \
+ X"$ac_cv_path_GZIP" : 'X\(//\)$' \| \
+ X"$ac_cv_path_GZIP" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_cv_path_GZIP" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ prefix=`(dirname "$prefix") 2>/dev/null ||
+$as_expr X"$prefix" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$prefix" : 'X\(//\)[^/]' \| \
+ X"$prefix" : 'X\(//\)$' \| \
+ X"$prefix" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$prefix" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ fi
+fi
+
+ac_config_files="$ac_config_files Makefile"
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems. If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overriden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, don't put newlines in cache variables' values.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+{
+ (set) 2>&1 |
+ case `(ac_space=' '; set | grep ac_space) 2>&1` in
+ *ac_space=\ *)
+ # `set' does not quote correctly, so add quotes (double-quote
+ # substitution turns \\\\ into \\, and sed turns \\ into \).
+ sed -n \
+ "s/'/'\\\\''/g;
+ s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+ ;;
+ *)
+ # `set' quotes correctly as required by POSIX, so do not add quotes.
+ sed -n \
+ "s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1=\\2/p"
+ ;;
+ esac;
+} |
+ sed '
+ t clear
+ : clear
+ s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+ t end
+ /^ac_cv_env/!s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+ : end' >>confcache
+if cmp -s $cache_file confcache; then :; else
+ if test -w $cache_file; then
+ test "x$cache_file" != "x/dev/null" && echo "updating cache $cache_file"
+ cat confcache >$cache_file
+ else
+ echo "not updating unwritable cache $cache_file"
+ fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# VPATH may cause trouble with some makes, so we remove $(srcdir),
+# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+ ac_vpsub='/^[ ]*VPATH[ ]*=/{
+s/:*\$(srcdir):*/:/;
+s/:*\${srcdir}:*/:/;
+s/:*@srcdir@:*/:/;
+s/^\([^=]*=[ ]*\):*/\1/;
+s/:*$//;
+s/^[^=]*=[ ]*$//;
+}'
+fi
+
+DEFS=-DHAVE_CONFIG_H
+
+: ${CONFIG_STATUS=./config.status}
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
+echo "$as_me: creating $CONFIG_STATUS" >&6;}
+cat >$CONFIG_STATUS <<_ACEOF
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+SHELL=\${CONFIG_SHELL-$SHELL}
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+## --------------------- ##
+## M4sh Initialization. ##
+## --------------------- ##
+
+# Be Bourne compatible
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+ emulate sh
+ NULLCMD=:
+elif test -n "${BASH_VERSION+set}" && (set -o posix) >/dev/null 2>&1; then
+ set -o posix
+fi
+
+# NLS nuisances.
+# Support unset when possible.
+if (FOO=FOO; unset FOO) >/dev/null 2>&1; then
+ as_unset=unset
+else
+ as_unset=false
+fi
+
+(set +x; test -n "`(LANG=C; export LANG) 2>&1`") &&
+ { $as_unset LANG || test "${LANG+set}" != set; } ||
+ { LANG=C; export LANG; }
+(set +x; test -n "`(LC_ALL=C; export LC_ALL) 2>&1`") &&
+ { $as_unset LC_ALL || test "${LC_ALL+set}" != set; } ||
+ { LC_ALL=C; export LC_ALL; }
+(set +x; test -n "`(LC_TIME=C; export LC_TIME) 2>&1`") &&
+ { $as_unset LC_TIME || test "${LC_TIME+set}" != set; } ||
+ { LC_TIME=C; export LC_TIME; }
+(set +x; test -n "`(LC_CTYPE=C; export LC_CTYPE) 2>&1`") &&
+ { $as_unset LC_CTYPE || test "${LC_CTYPE+set}" != set; } ||
+ { LC_CTYPE=C; export LC_CTYPE; }
+(set +x; test -n "`(LANGUAGE=C; export LANGUAGE) 2>&1`") &&
+ { $as_unset LANGUAGE || test "${LANGUAGE+set}" != set; } ||
+ { LANGUAGE=C; export LANGUAGE; }
+(set +x; test -n "`(LC_COLLATE=C; export LC_COLLATE) 2>&1`") &&
+ { $as_unset LC_COLLATE || test "${LC_COLLATE+set}" != set; } ||
+ { LC_COLLATE=C; export LC_COLLATE; }
+(set +x; test -n "`(LC_NUMERIC=C; export LC_NUMERIC) 2>&1`") &&
+ { $as_unset LC_NUMERIC || test "${LC_NUMERIC+set}" != set; } ||
+ { LC_NUMERIC=C; export LC_NUMERIC; }
+(set +x; test -n "`(LC_MESSAGES=C; export LC_MESSAGES) 2>&1`") &&
+ { $as_unset LC_MESSAGES || test "${LC_MESSAGES+set}" != set; } ||
+ { LC_MESSAGES=C; export LC_MESSAGES; }
+
+# Name of the executable.
+as_me=`(basename "$0") 2>/dev/null ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)$' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X/"$0" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{ s//\1/; q; }
+ /^X\/\(\/\/\)$/{ s//\1/; q; }
+ /^X\/\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+
+# PATH needs CR, and LINENO needs CR and PATH.
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ echo "#! $SHELL" >conftest.sh
+ echo "exit 0" >>conftest.sh
+ chmod +x conftest.sh
+ if (PATH=".;."; conftest.sh) >/dev/null 2>&1; then
+ PATH_SEPARATOR=';'
+ else
+ PATH_SEPARATOR=:
+ fi
+ rm -f conftest.sh
+fi
+
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" || {
+ # Find who we are. Look in the path if we contain no path at all
+ # relative or not.
+ case $0 in
+ *[\\/]* ) as_myself=$0 ;;
+ *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+done
+
+ ;;
+ esac
+ # We did not find ourselves, most probably we were run as `sh COMMAND'
+ # in which case we are not to be found in the path.
+ if test "x$as_myself" = x; then
+ as_myself=$0
+ fi
+ if test ! -f "$as_myself"; then
+ { { echo "$as_me:$LINENO: error: cannot find myself; rerun with an absolute path" >&5
+echo "$as_me: error: cannot find myself; rerun with an absolute path" >&2;}
+ { (exit 1); exit 1; }; }
+ fi
+ case $CONFIG_SHELL in
+ '')
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in /bin:/usr/bin:$PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for as_base in sh bash ksh sh5; do
+ case $as_dir in
+ /*)
+ if ("$as_dir/$as_base" -c '
+ as_lineno_1=$LINENO
+ as_lineno_2=$LINENO
+ as_lineno_3=`(expr $as_lineno_1 + 1) 2>/dev/null`
+ test "x$as_lineno_1" != "x$as_lineno_2" &&
+ test "x$as_lineno_3" = "x$as_lineno_2" ') 2>/dev/null; then
+ CONFIG_SHELL=$as_dir/$as_base
+ export CONFIG_SHELL
+ exec "$CONFIG_SHELL" "$0" ${1+"$@"}
+ fi;;
+ esac
+ done
+done
+;;
+ esac
+
+ # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
+ # uniformly replaced by the line number. The first 'sed' inserts a
+ # line-number line before each line; the second 'sed' does the real
+ # work. The second script uses 'N' to pair each line-number line
+ # with the numbered line, and appends trailing '-' during
+ # substitution so that $LINENO is not a special case at line end.
+ # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
+ # second 'sed' script. Blame Lee E. McMahon for sed's syntax. :-)
+ sed '=' <$as_myself |
+ sed '
+ N
+ s,$,-,
+ : loop
+ s,^\(['$as_cr_digits']*\)\(.*\)[$]LINENO\([^'$as_cr_alnum'_]\),\1\2\1\3,
+ t loop
+ s,-$,,
+ s,^['$as_cr_digits']*\n,,
+ ' >$as_me.lineno &&
+ chmod +x $as_me.lineno ||
+ { { echo "$as_me:$LINENO: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&5
+echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2;}
+ { (exit 1); exit 1; }; }
+
+ # Don't try to exec as it changes $[0], causing all sort of problems
+ # (the dirname of $[0] is not the place where we might find the
+ # original and so on. Autoconf is especially sensible to this).
+ . ./$as_me.lineno
+ # Exit status is that of the last command.
+ exit
+}
+
+case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
+ *c*,-n*) ECHO_N= ECHO_C='
+' ECHO_T=' ' ;;
+ *c*,* ) ECHO_N=-n ECHO_C= ECHO_T= ;;
+ *) ECHO_N= ECHO_C='\c' ECHO_T= ;;
+esac
+
+if expr a : '\(a\)' >/dev/null 2>&1; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+rm -f conf$$ conf$$.exe conf$$.file
+echo >conf$$.file
+if ln -s conf$$.file conf$$ 2>/dev/null; then
+ # We could just check for DJGPP; but this test a) works b) is more generic
+ # and c) will remain valid once DJGPP supports symlinks (DJGPP 2.04).
+ if test -f conf$$.exe; then
+ # Don't use ln at all; we don't have any links
+ as_ln_s='cp -p'
+ else
+ as_ln_s='ln -s'
+ fi
+elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+else
+ as_ln_s='cp -p'
+fi
+rm -f conf$$ conf$$.exe conf$$.file
+
+as_executable_p="test -f"
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="sed y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="sed y%*+%pp%;s%[^_$as_cr_alnum]%_%g"
+
+# IFS
+# We need space, tab and new line, in precisely that order.
+as_nl='
+'
+IFS=" $as_nl"
+
+# CDPATH.
+$as_unset CDPATH || test "${CDPATH+set}" != set || { CDPATH=$PATH_SEPARATOR; export CDPATH; }
+
+exec 6>&1
+
+# Open the log real soon, to keep \$[0] and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling. Logging --version etc. is OK.
+exec 5>>config.log
+{
+ echo
+ sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+} >&5
+cat >&5 <<_CSEOF
+
+This file was extended by $as_me, which was
+generated by GNU Autoconf 2.52f. Invocation command line was
+
+ CONFIG_FILES = $CONFIG_FILES
+ CONFIG_HEADERS = $CONFIG_HEADERS
+ CONFIG_LINKS = $CONFIG_LINKS
+ CONFIG_COMMANDS = $CONFIG_COMMANDS
+ $ $0 $@
+
+_CSEOF
+echo "on `(hostname || uname -n) 2>/dev/null | sed 1q`" >&5
+echo >&5
+_ACEOF
+
+# Files that config.status was made for.
+if test -n "$ac_config_files"; then
+ echo "config_files=\"$ac_config_files\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_headers"; then
+ echo "config_headers=\"$ac_config_headers\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_links"; then
+ echo "config_links=\"$ac_config_links\"" >>$CONFIG_STATUS
+fi
+
+if test -n "$ac_config_commands"; then
+ echo "config_commands=\"$ac_config_commands\"" >>$CONFIG_STATUS
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+ac_cs_usage="\
+\`$as_me' instantiates files from templates according to the
+current configuration.
+
+Usage: $0 [OPTIONS] [FILE]...
+
+ -h, --help print this help, then exit
+ -V, --version print version number, then exit
+ -d, --debug don't remove temporary files
+ --recheck update $as_me by reconfiguring in the same conditions
+ --file=FILE[:TEMPLATE]
+ instantiate the configuration file FILE
+ --header=FILE[:TEMPLATE]
+ instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to <bug-autoconf@gnu.org>."
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+ac_cs_version="\\
+config.status
+configured by $0, generated by GNU Autoconf 2.52f,
+ with options \\"`echo "$ac_configure_args" | sed 's/[\\""\`\$]/\\\\&/g'`\\"
+
+Copyright 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001
+Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+srcdir=$srcdir
+INSTALL="$INSTALL"
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+# If no file are specified by the user, then we need to provide default
+# value. By we need to know if files were specified by the user.
+ac_need_defaults=:
+while test $# != 0
+do
+ case $1 in
+ --*=*)
+ ac_option=`expr "x$1" : 'x\([^=]*\)='`
+ ac_optarg=`expr "x$1" : 'x[^=]*=\(.*\)'`
+ shift
+ set dummy "$ac_option" "$ac_optarg" ${1+"$@"}
+ shift
+ ;;
+ -*);;
+ *) # This is not an option, so the user has probably given explicit
+ # arguments.
+ ac_need_defaults=false;;
+ esac
+
+ case $1 in
+ # Handling of the options.
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+ -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+ echo "running $SHELL $0 " $ac_configure_args " --no-create --no-recursion"
+ exec $SHELL $0 $ac_configure_args --no-create --no-recursion ;;
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+ --version | --vers* | -V )
+ echo "$ac_cs_version"; exit 0 ;;
+ --he | --h)
+ # Conflict between --help and --header
+ { { echo "$as_me:$LINENO: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: ambiguous option: $1
+Try \`$0 --help' for more information." >&2;}
+ { (exit 1); exit 1; }; };;
+ --help | --hel | -h )
+ echo "$ac_cs_usage"; exit 0 ;;
+ --debug | --d* | -d )
+ debug=: ;;
+ --file | --fil | --fi | --f )
+ shift
+ CONFIG_FILES="$CONFIG_FILES $1"
+ ac_need_defaults=false;;
+ --header | --heade | --head | --hea )
+ shift
+ CONFIG_HEADERS="$CONFIG_HEADERS $1"
+ ac_need_defaults=false;;
+
+ # This is an error.
+ -*) { { echo "$as_me:$LINENO: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&5
+echo "$as_me: error: unrecognized option: $1
+Try \`$0 --help' for more information." >&2;}
+ { (exit 1); exit 1; }; } ;;
+
+ *) ac_config_targets="$ac_config_targets $1" ;;
+
+ esac
+ shift
+done
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+#
+# INIT-COMMANDS section.
+#
+
+AMDEP_TRUE="$AMDEP_TRUE"
+ac_aux_dir="$ac_aux_dir"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+for ac_config_target in $ac_config_targets
+do
+ case "$ac_config_target" in
+ # Handling of arguments.
+ "Makefile" ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+ "default-1" ) CONFIG_COMMANDS="$CONFIG_COMMANDS default-1" ;;
+ "config.h" ) CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
+ *) { { echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
+echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
+ { (exit 1); exit 1; }; };;
+ esac
+done
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used. Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+ test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+ test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+ test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Create a temporary directory, and hook for its removal unless debugging.
+$debug ||
+{
+ trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0
+ trap '{ (exit 1); exit 1; }' 1 2 13 15
+}
+
+# Create a (secure) tmp directory for tmp files.
+: ${TMPDIR=/tmp}
+{
+ tmp=`(umask 077 && mktemp -d -q "$TMPDIR/csXXXXXX") 2>/dev/null` &&
+ test -n "$tmp" && test -d "$tmp"
+} ||
+{
+ tmp=$TMPDIR/cs$$-$RANDOM
+ (umask 077 && mkdir $tmp)
+} ||
+{
+ echo "$me: cannot create a temporary directory in $TMPDIR" >&2
+ { (exit 1); exit 1; }
+}
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<_ACEOF
+
+#
+# CONFIG_FILES section.
+#
+
+# No need to generate the scripts if there are no CONFIG_FILES.
+# This happens for instance when ./config.status config.h
+if test -n "\$CONFIG_FILES"; then
+ # Protect against being on the right side of a sed subst in config.status.
+ sed 's/,@/@@/; s/@,/@@/; s/,;t t\$/@;t t/; /@;t t\$/s/[\\\\&,]/\\\\&/g;
+ s/@@/,@/; s/@@/@,/; s/@;t t\$/,;t t/' >\$tmp/subs.sed <<\\CEOF
+s,@SHELL@,$SHELL,;t t
+s,@PATH_SEPARATOR@,$PATH_SEPARATOR,;t t
+s,@exec_prefix@,$exec_prefix,;t t
+s,@prefix@,$prefix,;t t
+s,@program_transform_name@,$program_transform_name,;t t
+s,@bindir@,$bindir,;t t
+s,@sbindir@,$sbindir,;t t
+s,@libexecdir@,$libexecdir,;t t
+s,@datadir@,$datadir,;t t
+s,@sysconfdir@,$sysconfdir,;t t
+s,@sharedstatedir@,$sharedstatedir,;t t
+s,@localstatedir@,$localstatedir,;t t
+s,@libdir@,$libdir,;t t
+s,@includedir@,$includedir,;t t
+s,@oldincludedir@,$oldincludedir,;t t
+s,@infodir@,$infodir,;t t
+s,@mandir@,$mandir,;t t
+s,@PACKAGE_NAME@,$PACKAGE_NAME,;t t
+s,@PACKAGE_TARNAME@,$PACKAGE_TARNAME,;t t
+s,@PACKAGE_VERSION@,$PACKAGE_VERSION,;t t
+s,@PACKAGE_STRING@,$PACKAGE_STRING,;t t
+s,@PACKAGE_BUGREPORT@,$PACKAGE_BUGREPORT,;t t
+s,@build_alias@,$build_alias,;t t
+s,@host_alias@,$host_alias,;t t
+s,@target_alias@,$target_alias,;t t
+s,@DEFS@,$DEFS,;t t
+s,@ECHO_C@,$ECHO_C,;t t
+s,@ECHO_N@,$ECHO_N,;t t
+s,@ECHO_T@,$ECHO_T,;t t
+s,@LIBS@,$LIBS,;t t
+s,@INSTALL_PROGRAM@,$INSTALL_PROGRAM,;t t
+s,@INSTALL_SCRIPT@,$INSTALL_SCRIPT,;t t
+s,@INSTALL_DATA@,$INSTALL_DATA,;t t
+s,@PACKAGE@,$PACKAGE,;t t
+s,@VERSION@,$VERSION,;t t
+s,@EXEEXT@,$EXEEXT,;t t
+s,@OBJEXT@,$OBJEXT,;t t
+s,@ACLOCAL@,$ACLOCAL,;t t
+s,@AUTOCONF@,$AUTOCONF,;t t
+s,@AUTOMAKE@,$AUTOMAKE,;t t
+s,@AUTOHEADER@,$AUTOHEADER,;t t
+s,@MAKEINFO@,$MAKEINFO,;t t
+s,@AMTAR@,$AMTAR,;t t
+s,@install_sh@,$install_sh,;t t
+s,@INSTALL_STRIP_PROGRAM@,$INSTALL_STRIP_PROGRAM,;t t
+s,@AWK@,$AWK,;t t
+s,@SET_MAKE@,$SET_MAKE,;t t
+s,@AMDEP_TRUE@,$AMDEP_TRUE,;t t
+s,@AMDEP_FALSE@,$AMDEP_FALSE,;t t
+s,@AMDEPBACKSLASH@,$AMDEPBACKSLASH,;t t
+s,@DEPDIR@,$DEPDIR,;t t
+s,@CC@,$CC,;t t
+s,@CFLAGS@,$CFLAGS,;t t
+s,@LDFLAGS@,$LDFLAGS,;t t
+s,@CPPFLAGS@,$CPPFLAGS,;t t
+s,@ac_ct_CC@,$ac_ct_CC,;t t
+s,@am__include@,$am__include,;t t
+s,@am__quote@,$am__quote,;t t
+s,@CCDEPMODE@,$CCDEPMODE,;t t
+s,@LN_S@,$LN_S,;t t
+s,@CPP@,$CPP,;t t
+s,@LIBOBJS@,$LIBOBJS,;t t
+s,@GZIP@,$GZIP,;t t
+s,@ASCPP@,$ASCPP,;t t
+s,@SEDCMD@,$SEDCMD,;t t
+CEOF
+
+_ACEOF
+
+ cat >>$CONFIG_STATUS <<\_ACEOF
+ # Split the substitutions into bite-sized pieces for seds with
+ # small command number limits, like on Digital OSF/1 and HP-UX.
+ ac_max_sed_lines=48
+ ac_sed_frag=1 # Number of current file.
+ ac_beg=1 # First line for current file.
+ ac_end=$ac_max_sed_lines # Line after last line for current file.
+ ac_more_lines=:
+ ac_sed_cmds=
+ while $ac_more_lines; do
+ if test $ac_beg -gt 1; then
+ sed "1,${ac_beg}d; ${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+ else
+ sed "${ac_end}q" $tmp/subs.sed >$tmp/subs.frag
+ fi
+ if test ! -s $tmp/subs.frag; then
+ ac_more_lines=false
+ else
+ # The purpose of the label and of the branching condition is to
+ # speed up the sed processing (if there are no `@' at all, there
+ # is no need to browse any of the substitutions).
+ # These are the two extra sed commands mentioned above.
+ (echo ':t
+ /@[a-zA-Z_][a-zA-Z_0-9]*@/!b' && cat $tmp/subs.frag) >$tmp/subs-$ac_sed_frag.sed
+ if test -z "$ac_sed_cmds"; then
+ ac_sed_cmds="sed -f $tmp/subs-$ac_sed_frag.sed"
+ else
+ ac_sed_cmds="$ac_sed_cmds | sed -f $tmp/subs-$ac_sed_frag.sed"
+ fi
+ ac_sed_frag=`expr $ac_sed_frag + 1`
+ ac_beg=$ac_end
+ ac_end=`expr $ac_end + $ac_max_sed_lines`
+ fi
+ done
+ if test -z "$ac_sed_cmds"; then
+ ac_sed_cmds=cat
+ fi
+fi # test -n "$CONFIG_FILES"
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+for ac_file in : $CONFIG_FILES; do test "x$ac_file" = x: && continue
+ # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+ case $ac_file in
+ - | *:- | *:-:* ) # input from stdin
+ cat >$tmp/stdin
+ ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ * ) ac_file_in=$ac_file.in ;;
+ esac
+
+ # Compute @srcdir@, @top_srcdir@, and @INSTALL@ for subdirectories.
+ ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_file" : 'X\(//\)[^/]' \| \
+ X"$ac_file" : 'X\(//\)$' \| \
+ X"$ac_file" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { case "$ac_dir" in
+ [\\/]* | ?:[\\/]* ) as_incr_dir=;;
+ *) as_incr_dir=.;;
+esac
+as_dummy="$ac_dir"
+for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
+ case $as_mkdir_dir in
+ # Skip DOS drivespec
+ ?:) as_incr_dir=$as_mkdir_dir ;;
+ *)
+ as_incr_dir=$as_incr_dir/$as_mkdir_dir
+ test -d "$as_incr_dir" ||
+ mkdir "$as_incr_dir" ||
+ { { echo "$as_me:$LINENO: error: cannot create \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create \"$ac_dir\"" >&2;}
+ { (exit 1); exit 1; }; }
+ ;;
+ esac
+done; }
+
+ ac_builddir=.
+
+if test "$ac_dir" != .; then
+ ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+ # A "../" for each directory in $ac_dir_suffix.
+ ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+ ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+ .) # No --srcdir option. We are building in place.
+ ac_srcdir=.
+ if test -z "$ac_top_builddir"; then
+ ac_top_srcdir=.
+ else
+ ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+ fi ;;
+ [\\/]* | ?:[\\/]* ) # Absolute path.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir ;;
+ *) # Relative path.
+ ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_buildpath=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_top_buildpath=`cd "$ac_dir" && cd $ac_top_builddir && pwd`
+ac_srcpath=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_top_srcpath=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
+
+ case $INSTALL in
+ [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+ *) ac_INSTALL=$ac_top_builddir$INSTALL ;;
+ esac
+
+ if test x"$ac_file" != x-; then
+ { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+ rm -f "$ac_file"
+ fi
+ # Let's still pretend it is `configure' which instantiates (i.e., don't
+ # use $as_me), people would be surprised to read:
+ # /* config.h. Generated by config.status. */
+ if test x"$ac_file" = x-; then
+ configure_input=
+ else
+ configure_input="$ac_file. "
+ fi
+ configure_input=$configure_input"Generated from `echo $ac_file_in |
+ sed 's,.*/,,'` by configure."
+
+ # First look for the input files in the build tree, otherwise in the
+ # src tree.
+ ac_file_inputs=`IFS=:
+ for f in $ac_file_in; do
+ case $f in
+ -) echo $tmp/stdin ;;
+ [\\/$]*)
+ # Absolute (can't be DOS-style, as IFS=:)
+ test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ echo $f;;
+ *) # Relative
+ if test -f "$f"; then
+ # Build tree
+ echo $f
+ elif test -f "$srcdir/$f"; then
+ # Source tree
+ echo $srcdir/$f
+ else
+ # /dev/null tree
+ { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ fi;;
+ esac
+ done` || { (exit 1); exit 1; }
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF
+ sed "$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s,@configure_input@,$configure_input,;t t
+s,@srcdir@,$ac_srcdir,;t t
+s,@srcpath@,$ac_srcpath,;t t
+s,@top_srcdir@,$ac_top_srcdir,;t t
+s,@top_srcpath@,$ac_top_srcpath,;t t
+s,@builddir@,$ac_builddir,;t t
+s,@buildpath@,$ac_buildpath,;t t
+s,@top_builddir@,$ac_top_builddir,;t t
+s,@top_buildpath@,$ac_top_buildpath,;t t
+s,@INSTALL@,$ac_INSTALL,;t t
+" $ac_file_inputs | (eval "$ac_sed_cmds") >$tmp/out
+ rm -f $tmp/stdin
+ if test x"$ac_file" != x-; then
+ mv $tmp/out $ac_file
+ else
+ cat $tmp/out
+ rm -f $tmp/out
+ fi
+
+done
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+#
+# CONFIG_HEADER section.
+#
+
+# These sed commands are passed to sed as "A NAME B NAME C VALUE D", where
+# NAME is the cpp macro being defined and VALUE is the value it is being given.
+#
+# ac_d sets the value in "#define NAME VALUE" lines.
+ac_dA='s,^\([ ]*\)#\([ ]*define[ ][ ]*\)'
+ac_dB='[ ].*$,\1#\2'
+ac_dC=' '
+ac_dD=',;t'
+# ac_u turns "#undef NAME" without trailing blanks into "#define NAME VALUE".
+ac_uA='s,^\([ ]*\)#\([ ]*\)undef\([ ][ ]*\)'
+ac_uB='$,\1#\2define\3'
+ac_uC=' '
+ac_uD=',;t'
+
+for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
+ # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+ case $ac_file in
+ - | *:- | *:-:* ) # input from stdin
+ cat >$tmp/stdin
+ ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ *:* ) ac_file_in=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_file=`echo "$ac_file" | sed 's,:.*,,'` ;;
+ * ) ac_file_in=$ac_file.in ;;
+ esac
+
+ test x"$ac_file" != x- && { echo "$as_me:$LINENO: creating $ac_file" >&5
+echo "$as_me: creating $ac_file" >&6;}
+
+ # First look for the input files in the build tree, otherwise in the
+ # src tree.
+ ac_file_inputs=`IFS=:
+ for f in $ac_file_in; do
+ case $f in
+ -) echo $tmp/stdin ;;
+ [\\/$]*)
+ # Absolute (can't be DOS-style, as IFS=:)
+ test -f "$f" || { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ echo $f;;
+ *) # Relative
+ if test -f "$f"; then
+ # Build tree
+ echo $f
+ elif test -f "$srcdir/$f"; then
+ # Source tree
+ echo $srcdir/$f
+ else
+ # /dev/null tree
+ { { echo "$as_me:$LINENO: error: cannot find input file: $f" >&5
+echo "$as_me: error: cannot find input file: $f" >&2;}
+ { (exit 1); exit 1; }; }
+ fi;;
+ esac
+ done` || { (exit 1); exit 1; }
+ # Remove the trailing spaces.
+ sed 's/[ ]*$//' $ac_file_inputs >$tmp/in
+
+_ACEOF
+
+# Transform confdefs.h into two sed scripts, `conftest.defines' and
+# `conftest.undefs', that substitutes the proper values into
+# config.h.in to produce config.h. The first handles `#define'
+# templates, and the second `#undef' templates.
+# And first: Protect against being on the right side of a sed subst in
+# config.status. Protect against being in an unquoted here document
+# in config.status.
+rm -f conftest.defines conftest.undefs
+# Using a here document instead of a string reduces the quoting nightmare.
+# Putting comments in sed scripts is not portable.
+#
+# `end' is used to avoid that the second main sed command (meant for
+# 0-ary CPP macros) applies to n-ary macro definitions.
+# See the Autoconf documentation for `clear'.
+cat >confdef2sed.sed <<\_ACEOF
+s/[\\&,]/\\&/g
+s,[\\$`],\\&,g
+t clear
+: clear
+s,^[ ]*#[ ]*define[ ][ ]*\([^ (][^ (]*\)\(([^)]*)\)[ ]*\(.*\)$,${ac_dA}\1${ac_dB}\1\2${ac_dC}\3${ac_dD},gp
+t end
+s,^[ ]*#[ ]*define[ ][ ]*\([^ ][^ ]*\)[ ]*\(.*\)$,${ac_dA}\1${ac_dB}\1${ac_dC}\2${ac_dD},gp
+: end
+_ACEOF
+# If some macros were called several times there might be several times
+# the same #defines, which is useless. Nevertheless, we may not want to
+# sort them, since we want the *last* AC-DEFINE to be honored.
+uniq confdefs.h | sed -n -f confdef2sed.sed >conftest.defines
+sed 's/ac_d/ac_u/g' conftest.defines >conftest.undefs
+rm -f confdef2sed.sed
+
+# This sed command replaces #undef with comments. This is necessary, for
+# example, in the case of _POSIX_SOURCE, which is predefined and required
+# on some systems where configure will not decide to define it.
+cat >>conftest.undefs <<\_ACEOF
+s,^[ ]*#[ ]*undef[ ][ ]*[a-zA-Z_][a-zA-Z_0-9]*,/* & */,
+_ACEOF
+
+# Break up conftest.defines because some shells have a limit on the size
+# of here documents, and old seds have small limits too (100 cmds).
+echo ' # Handle all the #define templates only if necessary.' >>$CONFIG_STATUS
+echo ' if egrep "^[ ]*#[ ]*define" $tmp/in >/dev/null; then' >>$CONFIG_STATUS
+echo ' # If there are no defines, we may have an empty if/fi' >>$CONFIG_STATUS
+echo ' :' >>$CONFIG_STATUS
+rm -f conftest.tail
+while grep . conftest.defines >/dev/null
+do
+ # Write a limited-size here document to $tmp/defines.sed.
+ echo ' cat >$tmp/defines.sed <<CEOF' >>$CONFIG_STATUS
+ # Speed up: don't consider the non `#define' lines.
+ echo '/^[ ]*#[ ]*define/!b' >>$CONFIG_STATUS
+ # Work around the forget-to-reset-the-flag bug.
+ echo 't clr' >>$CONFIG_STATUS
+ echo ': clr' >>$CONFIG_STATUS
+ sed ${ac_max_here_lines}q conftest.defines >>$CONFIG_STATUS
+ echo 'CEOF
+ sed -f $tmp/defines.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+' >>$CONFIG_STATUS
+ sed 1,${ac_max_here_lines}d conftest.defines >conftest.tail
+ rm -f conftest.defines
+ mv conftest.tail conftest.defines
+done
+rm -f conftest.defines
+echo ' fi # egrep' >>$CONFIG_STATUS
+echo >>$CONFIG_STATUS
+
+# Break up conftest.undefs because some shells have a limit on the size
+# of here documents, and old seds have small limits too (100 cmds).
+echo ' # Handle all the #undef templates' >>$CONFIG_STATUS
+rm -f conftest.tail
+while grep . conftest.undefs >/dev/null
+do
+ # Write a limited-size here document to $tmp/undefs.sed.
+ echo ' cat >$tmp/undefs.sed <<CEOF' >>$CONFIG_STATUS
+ # Speed up: don't consider the non `#undef'
+ echo '/^[ ]*#[ ]*undef/!b' >>$CONFIG_STATUS
+ # Work around the forget-to-reset-the-flag bug.
+ echo 't clr' >>$CONFIG_STATUS
+ echo ': clr' >>$CONFIG_STATUS
+ sed ${ac_max_here_lines}q conftest.undefs >>$CONFIG_STATUS
+ echo 'CEOF
+ sed -f $tmp/undefs.sed $tmp/in >$tmp/out
+ rm -f $tmp/in
+ mv $tmp/out $tmp/in
+' >>$CONFIG_STATUS
+ sed 1,${ac_max_here_lines}d conftest.undefs >conftest.tail
+ rm -f conftest.undefs
+ mv conftest.tail conftest.undefs
+done
+rm -f conftest.undefs
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+ # Let's still pretend it is `configure' which instantiates (i.e., don't
+ # use $as_me), people would be surprised to read:
+ # /* config.h. Generated by config.status. */
+ if test x"$ac_file" = x-; then
+ echo "/* Generated by configure. */" >$tmp/config.h
+ else
+ echo "/* $ac_file. Generated by configure. */" >$tmp/config.h
+ fi
+ cat $tmp/in >>$tmp/config.h
+ rm -f $tmp/in
+ if test x"$ac_file" != x-; then
+ if cmp -s $ac_file $tmp/config.h 2>/dev/null; then
+ { echo "$as_me:$LINENO: $ac_file is unchanged" >&5
+echo "$as_me: $ac_file is unchanged" >&6;}
+ else
+ ac_dir=`(dirname "$ac_file") 2>/dev/null ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_file" : 'X\(//\)[^/]' \| \
+ X"$ac_file" : 'X\(//\)$' \| \
+ X"$ac_file" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_file" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ { case "$ac_dir" in
+ [\\/]* | ?:[\\/]* ) as_incr_dir=;;
+ *) as_incr_dir=.;;
+esac
+as_dummy="$ac_dir"
+for as_mkdir_dir in `IFS='/\\'; set X $as_dummy; shift; echo "$@"`; do
+ case $as_mkdir_dir in
+ # Skip DOS drivespec
+ ?:) as_incr_dir=$as_mkdir_dir ;;
+ *)
+ as_incr_dir=$as_incr_dir/$as_mkdir_dir
+ test -d "$as_incr_dir" ||
+ mkdir "$as_incr_dir" ||
+ { { echo "$as_me:$LINENO: error: cannot create \"$ac_dir\"" >&5
+echo "$as_me: error: cannot create \"$ac_dir\"" >&2;}
+ { (exit 1); exit 1; }; }
+ ;;
+ esac
+done; }
+
+ rm -f $ac_file
+ mv $tmp/config.h $ac_file
+ fi
+ else
+ cat $tmp/config.h
+ rm -f $tmp/config.h
+ fi
+ # Run the commands associated with the file.
+ case $ac_file in
+ config.h ) # update the timestamp
+echo timestamp >"./stamp-h"
+ ;;
+ esac
+done
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+#
+# CONFIG_COMMANDS section.
+#
+for ac_file in : $CONFIG_COMMANDS; do test "x$ac_file" = x: && continue
+ ac_dest=`echo "$ac_file" | sed 's,:.*,,'`
+ ac_source=`echo "$ac_file" | sed 's,[^:]*:,,'`
+ ac_dir=`(dirname "$ac_dest") 2>/dev/null ||
+$as_expr X"$ac_dest" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_dest" : 'X\(//\)[^/]' \| \
+ X"$ac_dest" : 'X\(//\)$' \| \
+ X"$ac_dest" : 'X\(/\)' \| \
+ . : '\(.\)' 2>/dev/null ||
+echo X"$ac_dest" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
+ /^X\(\/\/\)[^/].*/{ s//\1/; q; }
+ /^X\(\/\/\)$/{ s//\1/; q; }
+ /^X\(\/\).*/{ s//\1/; q; }
+ s/.*/./; q'`
+ ac_builddir=.
+
+if test "$ac_dir" != .; then
+ ac_dir_suffix=/`echo "$ac_dir" | sed 's,^\.[\\/],,'`
+ # A "../" for each directory in $ac_dir_suffix.
+ ac_top_builddir=`echo "$ac_dir_suffix" | sed 's,/[^\\/]*,../,g'`
+else
+ ac_dir_suffix= ac_top_builddir=
+fi
+
+case $srcdir in
+ .) # No --srcdir option. We are building in place.
+ ac_srcdir=.
+ if test -z "$ac_top_builddir"; then
+ ac_top_srcdir=.
+ else
+ ac_top_srcdir=`echo $ac_top_builddir | sed 's,/$,,'`
+ fi ;;
+ [\\/]* | ?:[\\/]* ) # Absolute path.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir ;;
+ *) # Relative path.
+ ac_srcdir=$ac_top_builddir$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_builddir$srcdir ;;
+esac
+# Don't blindly perform a `cd "$ac_dir"/$ac_foo && pwd` since $ac_foo can be
+# absolute.
+ac_buildpath=`cd "$ac_dir" && cd $ac_builddir && pwd`
+ac_top_buildpath=`cd "$ac_dir" && cd $ac_top_builddir && pwd`
+ac_srcpath=`cd "$ac_dir" && cd $ac_srcdir && pwd`
+ac_top_srcpath=`cd "$ac_dir" && cd $ac_top_srcdir && pwd`
+
+ { echo "$as_me:$LINENO: executing $ac_dest commands" >&5
+echo "$as_me: executing $ac_dest commands" >&6;}
+ case $ac_dest in
+ default-1 )
+test x"$AMDEP_TRUE" != x"" ||
+for mf in $CONFIG_FILES; do
+ case "$mf" in
+ Makefile) dirpart=.;;
+ */Makefile) dirpart=`echo "$mf" | sed -e 's|/[^/]*$||'`;;
+ *) continue;;
+ esac
+ grep '^DEP_FILES *= *[^ #]' < "$mf" > /dev/null || continue
+ # Extract the definition of DEP_FILES from the Makefile without
+ # running `make'.
+ DEPDIR=`sed -n -e '/^DEPDIR = / s///p' < "$mf"`
+ test -z "$DEPDIR" && continue
+ # When using ansi2knr, U may be empty or an underscore; expand it
+ U=`sed -n -e '/^U = / s///p' < "$mf"`
+ test -d "$dirpart/$DEPDIR" || mkdir "$dirpart/$DEPDIR"
+ # We invoke sed twice because it is the simplest approach to
+ # changing $(DEPDIR) to its actual value in the expansion.
+ for file in `sed -n -e '
+ /^DEP_FILES = .*\\\\$/ {
+ s/^DEP_FILES = //
+ :loop
+ s/\\\\$//
+ p
+ n
+ /\\\\$/ b loop
+ p
+ }
+ /^DEP_FILES = / s/^DEP_FILES = //p' < "$mf" | \
+ sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
+ # Make sure the directory exists.
+ test -f "$dirpart/$file" && continue
+ fdir=`echo "$file" | sed -e 's|/[^/]*$||'`
+ $ac_aux_dir/mkinstalldirs "$dirpart/$fdir" > /dev/null 2>&1
+ # echo "creating $dirpart/$file"
+ echo '# dummy' > "$dirpart/$file"
+ done
+done
+ ;;
+ esac
+done
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF
+
+{ (exit 0); exit 0; }
+_ACEOF
+chmod +x $CONFIG_STATUS
+ac_clean_files=$ac_clean_files_save
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded. So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status. When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+ ac_cs_success=:
+ exec 5>/dev/null
+ $SHELL $CONFIG_STATUS || ac_cs_success=false
+ exec 5>>config.log
+ # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+ # would make configure fail if this is the last instruction.
+ $ac_cs_success || { (exit 1); exit 1; }
+fi
--- /dev/null
+# Configure template for gzip.
+
+# Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+# Copyright (C) 1992-1993 Jean-loup Gailly
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+AC_INIT(gzip.c)
+AM_INIT_AUTOMAKE(gzip, 1.3.2)
+AM_CONFIG_HEADER(config.h)
+AC_PREREQ(2.52)
+AC_PROG_CC
+AC_PROG_LN_S
+AC_PROG_SHELL
+AC_OBJEXT
+AC_AIX
+AC_MINIX
+AC_SYS_LARGEFILE
+
+dnl
+dnl Try to assemble match.S with and without leading underline.
+dnl cc -E produces incorrect asm files on SVR4, we must use /lib/cpp.
+dnl Also, "gcc -E match.s" ignores -E, so we must use match.S.
+echo checking for underline in external names
+test -z "$ASCPP" -a -f /lib/cpp && ASCPP=/lib/cpp
+test -z "$ASCPP" && ASCPP="$CC -E"
+cat > conftest.c <<EOF
+int foo() {return 0;}
+EOF
+eval "$CC -c conftest.c > /dev/null 2>&1"
+if nm conftest.$OBJEXT | grep _foo > /dev/null 2>&1 ; then
+ :
+else
+ ASCPP="${ASCPP} -DNO_UNDERLINE"
+fi
+rm -f _match.$OBJEXT conftest.c conftest.$OBJEXT
+if echo "$DEFS" | grep NO_ASM >/dev/null; then
+ :
+else
+ echo checking for assembler
+ if eval "$ASCPP $srcdir/match.S > _match.s 2>/dev/null"; then
+ if test ! -s _match.s || grep error < _match.s > /dev/null; then
+ :
+ elif eval "$CC -c _match.s >/dev/null 2>&1" && test -f _match.$OBJEXT; then
+ AC_DEFINE(ASMV, ,
+ [Define if an assembler version of longest_match is available.])
+ LIBOBJS="$LIBOBJS match.$OBJEXT"
+ # Work around automake 1.4 bug
+ : LIBOBJS="$LIBOBJS match.o"
+ fi
+ fi
+ rm -f _match.s _match.$OBJEXT
+fi
+dnl
+AC_EXEEXT
+AC_ISC_POSIX
+AC_C_CONST
+AC_STDC_HEADERS
+AC_CHECK_HEADERS(fcntl.h limits.h memory.h \
+ stdlib.h string.h sys/utime.h time.h unistd.h utime.h)
+AC_CHECK_FUNCS(lstat utime)
+AC_REPLACE_FUNCS(rpmatch)
+AC_HEADER_DIRENT
+AC_TYPE_SIGNAL
+AC_TYPE_SIZE_T
+AC_TYPE_OFF_T
+AC_SYS_INTERPRETER
+case $interpval in
+yes) SEDCMD='1d';;
+*) SEDCMD='';;
+esac
+
+AC_PREFIX_PROGRAM(gzip)
+AC_SUBST(LIBOBJS)dnl
+AC_SUBST(CFLAGS)dnl
+AC_SUBST(ASCPP)dnl
+AC_SUBST(SEDCMD)dnl
+AC_OUTPUT(Makefile)
--- /dev/null
+/* crypt.c (dummy version) -- do not perform encryption
+ * Hardly worth copyrighting :-)
+ */
+#ifdef RCSID
+static char rcsid[] = "$Id: crypt.c,v 0.6 1993/03/22 09:48:47 jloup Exp $";
+#endif
--- /dev/null
+/* crypt.h (dummy version) -- do not perform encryption
+ * Hardly worth copyrighting :-)
+ */
+
+#ifdef CRYPT
+# undef CRYPT /* dummy version */
+#endif
+
+#define RAND_HEAD_LEN 12 /* length of encryption random header */
+
+#define zencode
+#define zdecode
--- /dev/null
+/* deflate.c -- compress data using the deflation algorithm
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/*
+ * PURPOSE
+ *
+ * Identify new text as repetitions of old text within a fixed-
+ * length sliding window trailing behind the new text.
+ *
+ * DISCUSSION
+ *
+ * The "deflation" process depends on being able to identify portions
+ * of the input text which are identical to earlier input (within a
+ * sliding window trailing behind the input currently being processed).
+ *
+ * The most straightforward technique turns out to be the fastest for
+ * most input files: try all possible matches and select the longest.
+ * The key feature of this algorithm is that insertions into the string
+ * dictionary are very simple and thus fast, and deletions are avoided
+ * completely. Insertions are performed at each input character, whereas
+ * string matches are performed only when the previous match ends. So it
+ * is preferable to spend more time in matches to allow very fast string
+ * insertions and avoid deletions. The matching algorithm for small
+ * strings is inspired from that of Rabin & Karp. A brute force approach
+ * is used to find longer strings when a small match has been found.
+ * A similar algorithm is used in comic (by Jan-Mark Wams) and freeze
+ * (by Leonid Broukhis).
+ * A previous version of this file used a more sophisticated algorithm
+ * (by Fiala and Greene) which is guaranteed to run in linear amortized
+ * time, but has a larger average cost, uses more memory and is patented.
+ * However the F&G algorithm may be faster for some highly redundant
+ * files if the parameter max_chain_length (described below) is too large.
+ *
+ * ACKNOWLEDGEMENTS
+ *
+ * The idea of lazy evaluation of matches is due to Jan-Mark Wams, and
+ * I found it in 'freeze' written by Leonid Broukhis.
+ * Thanks to many info-zippers for bug reports and testing.
+ *
+ * REFERENCES
+ *
+ * APPNOTE.TXT documentation file in PKZIP 1.93a distribution.
+ *
+ * A description of the Rabin and Karp algorithm is given in the book
+ * "Algorithms" by R. Sedgewick, Addison-Wesley, p252.
+ *
+ * Fiala,E.R., and Greene,D.H.
+ * Data Compression with Finite Windows, Comm.ACM, 32,4 (1989) 490-595
+ *
+ * INTERFACE
+ *
+ * void lm_init (int pack_level, ush *flags)
+ * Initialize the "longest match" routines for a new file
+ *
+ * off_t deflate (void)
+ * Processes a new input file and return its compressed length. Sets
+ * the compressed length, crc, deflate flags and internal file
+ * attributes.
+ */
+
+#include <config.h>
+#include <stdio.h>
+
+#include "tailor.h"
+#include "gzip.h"
+#include "lzw.h" /* just for consistency checking */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: deflate.c,v 0.15 1993/06/24 10:53:53 jloup Exp $";
+#endif
+
+/* ===========================================================================
+ * Configuration parameters
+ */
+
+/* Compile with MEDIUM_MEM to reduce the memory requirements or
+ * with SMALL_MEM to use as little memory as possible. Use BIG_MEM if the
+ * entire input file can be held in memory (not possible on 16 bit systems).
+ * Warning: defining these symbols affects HASH_BITS (see below) and thus
+ * affects the compression ratio. The compressed output
+ * is still correct, and might even be smaller in some cases.
+ */
+
+#ifdef SMALL_MEM
+# define HASH_BITS 13 /* Number of bits used to hash strings */
+#endif
+#ifdef MEDIUM_MEM
+# define HASH_BITS 14
+#endif
+#ifndef HASH_BITS
+# define HASH_BITS 15
+ /* For portability to 16 bit machines, do not use values above 15. */
+#endif
+
+/* To save space (see unlzw.c), we overlay prev+head with tab_prefix and
+ * window with tab_suffix. Check that we can do this:
+ */
+#if (WSIZE<<1) > (1<<BITS)
+ error: cannot overlay window with tab_suffix and prev with tab_prefix0
+#endif
+#if HASH_BITS > BITS-1
+ error: cannot overlay head with tab_prefix1
+#endif
+
+#define HASH_SIZE (unsigned)(1<<HASH_BITS)
+#define HASH_MASK (HASH_SIZE-1)
+#define WMASK (WSIZE-1)
+/* HASH_SIZE and WSIZE must be powers of two */
+
+#define NIL 0
+/* Tail of hash chains */
+
+#define FAST 4
+#define SLOW 2
+/* speed options for the general purpose bit flag */
+
+#ifndef TOO_FAR
+# define TOO_FAR 4096
+#endif
+/* Matches of length 3 are discarded if their distance exceeds TOO_FAR */
+
+/* ===========================================================================
+ * Local data used by the "longest match" routines.
+ */
+
+typedef ush Pos;
+typedef unsigned IPos;
+/* A Pos is an index in the character window. We use short instead of int to
+ * save space in the various tables. IPos is used only for parameter passing.
+ */
+
+/* DECLARE(uch, window, 2L*WSIZE); */
+/* Sliding window. Input bytes are read into the second half of the window,
+ * and move to the first half later to keep a dictionary of at least WSIZE
+ * bytes. With this organization, matches are limited to a distance of
+ * WSIZE-MAX_MATCH bytes, but this ensures that IO is always
+ * performed with a length multiple of the block size. Also, it limits
+ * the window size to 64K, which is quite useful on MSDOS.
+ * To do: limit the window size to WSIZE+BSZ if SMALL_MEM (the code would
+ * be less efficient).
+ */
+
+/* DECLARE(Pos, prev, WSIZE); */
+/* Link to older string with same hash index. To limit the size of this
+ * array to 64K, this link is maintained only for the last 32K strings.
+ * An index in this array is thus a window index modulo 32K.
+ */
+
+/* DECLARE(Pos, head, 1<<HASH_BITS); */
+/* Heads of the hash chains or NIL. */
+
+ulg window_size = (ulg)2*WSIZE;
+/* window size, 2*WSIZE except for MMAP or BIG_MEM, where it is the
+ * input file length plus MIN_LOOKAHEAD.
+ */
+
+long block_start;
+/* window position at the beginning of the current output block. Gets
+ * negative when the window is moved backwards.
+ */
+
+local unsigned ins_h; /* hash index of string to be inserted */
+
+#define H_SHIFT ((HASH_BITS+MIN_MATCH-1)/MIN_MATCH)
+/* Number of bits by which ins_h and del_h must be shifted at each
+ * input step. It must be such that after MIN_MATCH steps, the oldest
+ * byte no longer takes part in the hash key, that is:
+ * H_SHIFT * MIN_MATCH >= HASH_BITS
+ */
+
+unsigned int near prev_length;
+/* Length of the best match at previous step. Matches not greater than this
+ * are discarded. This is used in the lazy match evaluation.
+ */
+
+ unsigned near strstart; /* start of string to insert */
+ unsigned near match_start; /* start of matching string */
+local int eofile; /* flag set at end of input file */
+local unsigned lookahead; /* number of valid bytes ahead in window */
+
+unsigned near max_chain_length;
+/* To speed up deflation, hash chains are never searched beyond this length.
+ * A higher limit improves compression ratio but degrades the speed.
+ */
+
+local unsigned int max_lazy_match;
+/* Attempt to find a better match only when the current match is strictly
+ * smaller than this value. This mechanism is used only for compression
+ * levels >= 4.
+ */
+#define max_insert_length max_lazy_match
+/* Insert new strings in the hash table only if the match length
+ * is not greater than this length. This saves time but degrades compression.
+ * max_insert_length is used only for compression levels <= 3.
+ */
+
+local int compr_level;
+/* compression level (1..9) */
+
+unsigned near good_match;
+/* Use a faster search when the previous match is longer than this */
+
+
+/* Values for max_lazy_match, good_match and max_chain_length, depending on
+ * the desired pack level (0..9). The values given below have been tuned to
+ * exclude worst case performance for pathological files. Better values may be
+ * found for specific files.
+ */
+
+typedef struct config {
+ ush good_length; /* reduce lazy search above this match length */
+ ush max_lazy; /* do not perform lazy search above this match length */
+ ush nice_length; /* quit search above this match length */
+ ush max_chain;
+} config;
+
+#ifdef FULL_SEARCH
+# define nice_match MAX_MATCH
+#else
+ int near nice_match; /* Stop searching when current match exceeds this */
+#endif
+
+local config configuration_table[10] = {
+/* good lazy nice chain */
+/* 0 */ {0, 0, 0, 0}, /* store only */
+/* 1 */ {4, 4, 8, 4}, /* maximum speed, no lazy matches */
+/* 2 */ {4, 5, 16, 8},
+/* 3 */ {4, 6, 32, 32},
+
+/* 4 */ {4, 4, 16, 16}, /* lazy matches */
+/* 5 */ {8, 16, 32, 32},
+/* 6 */ {8, 16, 128, 128},
+/* 7 */ {8, 32, 128, 256},
+/* 8 */ {32, 128, 258, 1024},
+/* 9 */ {32, 258, 258, 4096}}; /* maximum compression */
+
+/* Note: the deflate() code requires max_lazy >= MIN_MATCH and max_chain >= 4
+ * For deflate_fast() (levels <= 3) good is ignored and lazy has a different
+ * meaning.
+ */
+
+#define EQUAL 0
+/* result of memcmp for equal strings */
+
+/* ===========================================================================
+ * Prototypes for local functions.
+ */
+local void fill_window OF((void));
+local off_t deflate_fast OF((void));
+
+ int longest_match OF((IPos cur_match));
+#ifdef ASMV
+ void match_init OF((void)); /* asm code initialization */
+#endif
+
+#ifdef DEBUG
+local void check_match OF((IPos start, IPos match, int length));
+#endif
+
+/* ===========================================================================
+ * Update a hash value with the given input byte
+ * IN assertion: all calls to to UPDATE_HASH are made with consecutive
+ * input characters, so that a running hash key can be computed from the
+ * previous key instead of complete recalculation each time.
+ */
+#define UPDATE_HASH(h,c) (h = (((h)<<H_SHIFT) ^ (c)) & HASH_MASK)
+
+/* ===========================================================================
+ * Insert string s in the dictionary and set match_head to the previous head
+ * of the hash chain (the most recent string with same hash key). Return
+ * the previous length of the hash chain.
+ * IN assertion: all calls to to INSERT_STRING are made with consecutive
+ * input characters and the first MIN_MATCH bytes of s are valid
+ * (except for the last MIN_MATCH-1 bytes of the input file).
+ */
+#define INSERT_STRING(s, match_head) \
+ (UPDATE_HASH(ins_h, window[(s) + MIN_MATCH-1]), \
+ prev[(s) & WMASK] = match_head = head[ins_h], \
+ head[ins_h] = (s))
+
+/* ===========================================================================
+ * Initialize the "longest match" routines for a new file
+ */
+void lm_init (pack_level, flags)
+ int pack_level; /* 0: store, 1: best speed, 9: best compression */
+ ush *flags; /* general purpose bit flag */
+{
+ register unsigned j;
+
+ if (pack_level < 1 || pack_level > 9) error("bad pack level");
+ compr_level = pack_level;
+
+ /* Initialize the hash table. */
+#if defined(MAXSEG_64K) && HASH_BITS == 15
+ for (j = 0; j < HASH_SIZE; j++) head[j] = NIL;
+#else
+ memzero((char*)head, HASH_SIZE*sizeof(*head));
+#endif
+ /* prev will be initialized on the fly */
+
+ /* Set the default configuration parameters:
+ */
+ max_lazy_match = configuration_table[pack_level].max_lazy;
+ good_match = configuration_table[pack_level].good_length;
+#ifndef FULL_SEARCH
+ nice_match = configuration_table[pack_level].nice_length;
+#endif
+ max_chain_length = configuration_table[pack_level].max_chain;
+ if (pack_level == 1) {
+ *flags |= FAST;
+ } else if (pack_level == 9) {
+ *flags |= SLOW;
+ }
+ /* ??? reduce max_chain_length for binary files */
+
+ strstart = 0;
+ block_start = 0L;
+#ifdef ASMV
+ match_init(); /* initialize the asm code */
+#endif
+
+ lookahead = read_buf((char*)window,
+ sizeof(int) <= 2 ? (unsigned)WSIZE : 2*WSIZE);
+
+ if (lookahead == 0 || lookahead == (unsigned)EOF) {
+ eofile = 1, lookahead = 0;
+ return;
+ }
+ eofile = 0;
+ /* Make sure that we always have enough lookahead. This is important
+ * if input comes from a device such as a tty.
+ */
+ while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
+
+ ins_h = 0;
+ for (j=0; j<MIN_MATCH-1; j++) UPDATE_HASH(ins_h, window[j]);
+ /* If lookahead < MIN_MATCH, ins_h is garbage, but this is
+ * not important since only literal bytes will be emitted.
+ */
+}
+
+/* ===========================================================================
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ */
+#ifndef ASMV
+/* For MSDOS, OS/2 and 386 Unix, an optimized version is in match.asm or
+ * match.s. The code is functionally equivalent, so you can use the C version
+ * if desired.
+ */
+int longest_match(cur_match)
+ IPos cur_match; /* current match */
+{
+ unsigned chain_length = max_chain_length; /* max hash chain length */
+ register uch *scan = window + strstart; /* current string */
+ register uch *match; /* matched string */
+ register int len; /* length of current match */
+ int best_len = prev_length; /* best match length so far */
+ IPos limit = strstart > (IPos)MAX_DIST ? strstart - (IPos)MAX_DIST : NIL;
+ /* Stop when cur_match becomes <= limit. To simplify the code,
+ * we prevent matches with the string of window index 0.
+ */
+
+/* The code is optimized for HASH_BITS >= 8 and MAX_MATCH-2 multiple of 16.
+ * It is easy to get rid of this optimization if necessary.
+ */
+#if HASH_BITS < 8 || MAX_MATCH != 258
+ error: Code too clever
+#endif
+
+#ifdef UNALIGNED_OK
+ /* Compare two bytes at a time. Note: this is not always beneficial.
+ * Try with and without -DUNALIGNED_OK to check.
+ */
+ register uch *strend = window + strstart + MAX_MATCH - 1;
+ register ush scan_start = *(ush*)scan;
+ register ush scan_end = *(ush*)(scan+best_len-1);
+#else
+ register uch *strend = window + strstart + MAX_MATCH;
+ register uch scan_end1 = scan[best_len-1];
+ register uch scan_end = scan[best_len];
+#endif
+
+ /* Do not waste too much time if we already have a good match: */
+ if (prev_length >= good_match) {
+ chain_length >>= 2;
+ }
+ Assert(strstart <= window_size-MIN_LOOKAHEAD, "insufficient lookahead");
+
+ do {
+ Assert(cur_match < strstart, "no future");
+ match = window + cur_match;
+
+ /* Skip to next match if the match length cannot increase
+ * or if the match length is less than 2:
+ */
+#if (defined(UNALIGNED_OK) && MAX_MATCH == 258)
+ /* This code assumes sizeof(unsigned short) == 2. Do not use
+ * UNALIGNED_OK if your compiler uses a different size.
+ */
+ if (*(ush*)(match+best_len-1) != scan_end ||
+ *(ush*)match != scan_start) continue;
+
+ /* It is not necessary to compare scan[2] and match[2] since they are
+ * always equal when the other bytes match, given that the hash keys
+ * are equal and that HASH_BITS >= 8. Compare 2 bytes at a time at
+ * strstart+3, +5, ... up to strstart+257. We check for insufficient
+ * lookahead only every 4th comparison; the 128th check will be made
+ * at strstart+257. If MAX_MATCH-2 is not a multiple of 8, it is
+ * necessary to put more guard bytes at the end of the window, or
+ * to check more often for insufficient lookahead.
+ */
+ scan++, match++;
+ do {
+ } while (*(ush*)(scan+=2) == *(ush*)(match+=2) &&
+ *(ush*)(scan+=2) == *(ush*)(match+=2) &&
+ *(ush*)(scan+=2) == *(ush*)(match+=2) &&
+ *(ush*)(scan+=2) == *(ush*)(match+=2) &&
+ scan < strend);
+ /* The funny "do {}" generates better code on most compilers */
+
+ /* Here, scan <= window+strstart+257 */
+ Assert(scan <= window+(unsigned)(window_size-1), "wild scan");
+ if (*scan == *match) scan++;
+
+ len = (MAX_MATCH - 1) - (int)(strend-scan);
+ scan = strend - (MAX_MATCH-1);
+
+#else /* UNALIGNED_OK */
+
+ if (match[best_len] != scan_end ||
+ match[best_len-1] != scan_end1 ||
+ *match != *scan ||
+ *++match != scan[1]) continue;
+
+ /* The check at best_len-1 can be removed because it will be made
+ * again later. (This heuristic is not always a win.)
+ * It is not necessary to compare scan[2] and match[2] since they
+ * are always equal when the other bytes match, given that
+ * the hash keys are equal and that HASH_BITS >= 8.
+ */
+ scan += 2, match++;
+
+ /* We check for insufficient lookahead only every 8th comparison;
+ * the 256th check will be made at strstart+258.
+ */
+ do {
+ } while (*++scan == *++match && *++scan == *++match &&
+ *++scan == *++match && *++scan == *++match &&
+ *++scan == *++match && *++scan == *++match &&
+ *++scan == *++match && *++scan == *++match &&
+ scan < strend);
+
+ len = MAX_MATCH - (int)(strend - scan);
+ scan = strend - MAX_MATCH;
+
+#endif /* UNALIGNED_OK */
+
+ if (len > best_len) {
+ match_start = cur_match;
+ best_len = len;
+ if (len >= nice_match) break;
+#ifdef UNALIGNED_OK
+ scan_end = *(ush*)(scan+best_len-1);
+#else
+ scan_end1 = scan[best_len-1];
+ scan_end = scan[best_len];
+#endif
+ }
+ } while ((cur_match = prev[cur_match & WMASK]) > limit
+ && --chain_length != 0);
+
+ return best_len;
+}
+#endif /* ASMV */
+
+#ifdef DEBUG
+/* ===========================================================================
+ * Check that the match at match_start is indeed a match.
+ */
+local void check_match(start, match, length)
+ IPos start, match;
+ int length;
+{
+ /* check that the match is indeed a match */
+ if (memcmp((char*)window + match,
+ (char*)window + start, length) != EQUAL) {
+ fprintf(stderr,
+ " start %d, match %d, length %d\n",
+ start, match, length);
+ error("invalid match");
+ }
+ if (verbose > 1) {
+ fprintf(stderr,"\\[%d,%d]", start-match, length);
+ do { putc(window[start++], stderr); } while (--length != 0);
+ }
+}
+#else
+# define check_match(start, match, length)
+#endif
+
+/* ===========================================================================
+ * Fill the window when the lookahead becomes insufficient.
+ * Updates strstart and lookahead, and sets eofile if end of input file.
+ * IN assertion: lookahead < MIN_LOOKAHEAD && strstart + lookahead > 0
+ * OUT assertions: at least one byte has been read, or eofile is set;
+ * file reads are performed for at least two bytes (required for the
+ * translate_eol option).
+ */
+local void fill_window()
+{
+ register unsigned n, m;
+ unsigned more = (unsigned)(window_size - (ulg)lookahead - (ulg)strstart);
+ /* Amount of free space at the end of the window. */
+
+ /* If the window is almost full and there is insufficient lookahead,
+ * move the upper half to the lower one to make room in the upper half.
+ */
+ if (more == (unsigned)EOF) {
+ /* Very unlikely, but possible on 16 bit machine if strstart == 0
+ * and lookahead == 1 (input done one byte at time)
+ */
+ more--;
+ } else if (strstart >= WSIZE+MAX_DIST) {
+ /* By the IN assertion, the window is not empty so we can't confuse
+ * more == 0 with more == 64K on a 16 bit machine.
+ */
+ Assert(window_size == (ulg)2*WSIZE, "no sliding with BIG_MEM");
+
+ memcpy((char*)window, (char*)window+WSIZE, (unsigned)WSIZE);
+ match_start -= WSIZE;
+ strstart -= WSIZE; /* we now have strstart >= MAX_DIST: */
+
+ block_start -= (long) WSIZE;
+
+ for (n = 0; n < HASH_SIZE; n++) {
+ m = head[n];
+ head[n] = (Pos)(m >= WSIZE ? m-WSIZE : NIL);
+ }
+ for (n = 0; n < WSIZE; n++) {
+ m = prev[n];
+ prev[n] = (Pos)(m >= WSIZE ? m-WSIZE : NIL);
+ /* If n is not on any hash chain, prev[n] is garbage but
+ * its value will never be used.
+ */
+ }
+ more += WSIZE;
+ }
+ /* At this point, more >= 2 */
+ if (!eofile) {
+ n = read_buf((char*)window+strstart+lookahead, more);
+ if (n == 0 || n == (unsigned)EOF) {
+ eofile = 1;
+ } else {
+ lookahead += n;
+ }
+ }
+}
+
+/* ===========================================================================
+ * Flush the current block, with given end-of-file flag.
+ * IN assertion: strstart is set to the end of the current match.
+ */
+#define FLUSH_BLOCK(eof) \
+ flush_block(block_start >= 0L ? (char*)&window[(unsigned)block_start] : \
+ (char*)NULL, (long)strstart - block_start, (eof))
+
+/* ===========================================================================
+ * Processes a new input file and return its compressed length. This
+ * function does not perform lazy evaluationof matches and inserts
+ * new strings in the dictionary only for unmatched strings or for short
+ * matches. It is used only for the fast compression options.
+ */
+local off_t deflate_fast()
+{
+ IPos hash_head; /* head of the hash chain */
+ int flush; /* set if current block must be flushed */
+ unsigned match_length = 0; /* length of best match */
+
+ prev_length = MIN_MATCH-1;
+ while (lookahead != 0) {
+ /* Insert the string window[strstart .. strstart+2] in the
+ * dictionary, and set hash_head to the head of the hash chain:
+ */
+ INSERT_STRING(strstart, hash_head);
+
+ /* Find the longest match, discarding those <= prev_length.
+ * At this point we have always match_length < MIN_MATCH
+ */
+ if (hash_head != NIL && strstart - hash_head <= MAX_DIST) {
+ /* To simplify the code, we prevent matches with the string
+ * of window index 0 (in particular we have to avoid a match
+ * of the string with itself at the start of the input file).
+ */
+ match_length = longest_match (hash_head);
+ /* longest_match() sets match_start */
+ if (match_length > lookahead) match_length = lookahead;
+ }
+ if (match_length >= MIN_MATCH) {
+ check_match(strstart, match_start, match_length);
+
+ flush = ct_tally(strstart-match_start, match_length - MIN_MATCH);
+
+ lookahead -= match_length;
+
+ /* Insert new strings in the hash table only if the match length
+ * is not too large. This saves time but degrades compression.
+ */
+ if (match_length <= max_insert_length) {
+ match_length--; /* string at strstart already in hash table */
+ do {
+ strstart++;
+ INSERT_STRING(strstart, hash_head);
+ /* strstart never exceeds WSIZE-MAX_MATCH, so there are
+ * always MIN_MATCH bytes ahead. If lookahead < MIN_MATCH
+ * these bytes are garbage, but it does not matter since
+ * the next lookahead bytes will be emitted as literals.
+ */
+ } while (--match_length != 0);
+ strstart++;
+ } else {
+ strstart += match_length;
+ match_length = 0;
+ ins_h = window[strstart];
+ UPDATE_HASH(ins_h, window[strstart+1]);
+#if MIN_MATCH != 3
+ Call UPDATE_HASH() MIN_MATCH-3 more times
+#endif
+ }
+ } else {
+ /* No match, output a literal byte */
+ Tracevv((stderr,"%c",window[strstart]));
+ flush = ct_tally (0, window[strstart]);
+ lookahead--;
+ strstart++;
+ }
+ if (flush) FLUSH_BLOCK(0), block_start = strstart;
+
+ /* Make sure that we always have enough lookahead, except
+ * at the end of the input file. We need MAX_MATCH bytes
+ * for the next match, plus MIN_MATCH bytes to insert the
+ * string following the next match.
+ */
+ while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
+
+ }
+ return FLUSH_BLOCK(1); /* eof */
+}
+
+/* ===========================================================================
+ * Same as above, but achieves better compression. We use a lazy
+ * evaluation for matches: a match is finally adopted only if there is
+ * no better match at the next window position.
+ */
+off_t deflate()
+{
+ IPos hash_head; /* head of hash chain */
+ IPos prev_match; /* previous match */
+ int flush; /* set if current block must be flushed */
+ int match_available = 0; /* set if previous match exists */
+ register unsigned match_length = MIN_MATCH-1; /* length of best match */
+
+ if (compr_level <= 3) return deflate_fast(); /* optimized for speed */
+
+ /* Process the input block. */
+ while (lookahead != 0) {
+ /* Insert the string window[strstart .. strstart+2] in the
+ * dictionary, and set hash_head to the head of the hash chain:
+ */
+ INSERT_STRING(strstart, hash_head);
+
+ /* Find the longest match, discarding those <= prev_length.
+ */
+ prev_length = match_length, prev_match = match_start;
+ match_length = MIN_MATCH-1;
+
+ if (hash_head != NIL && prev_length < max_lazy_match &&
+ strstart - hash_head <= MAX_DIST) {
+ /* To simplify the code, we prevent matches with the string
+ * of window index 0 (in particular we have to avoid a match
+ * of the string with itself at the start of the input file).
+ */
+ match_length = longest_match (hash_head);
+ /* longest_match() sets match_start */
+ if (match_length > lookahead) match_length = lookahead;
+
+ /* Ignore a length 3 match if it is too distant: */
+ if (match_length == MIN_MATCH && strstart-match_start > TOO_FAR){
+ /* If prev_match is also MIN_MATCH, match_start is garbage
+ * but we will ignore the current match anyway.
+ */
+ match_length--;
+ }
+ }
+ /* If there was a match at the previous step and the current
+ * match is not better, output the previous match:
+ */
+ if (prev_length >= MIN_MATCH && match_length <= prev_length) {
+
+ check_match(strstart-1, prev_match, prev_length);
+
+ flush = ct_tally(strstart-1-prev_match, prev_length - MIN_MATCH);
+
+ /* Insert in hash table all strings up to the end of the match.
+ * strstart-1 and strstart are already inserted.
+ */
+ lookahead -= prev_length-1;
+ prev_length -= 2;
+ do {
+ strstart++;
+ INSERT_STRING(strstart, hash_head);
+ /* strstart never exceeds WSIZE-MAX_MATCH, so there are
+ * always MIN_MATCH bytes ahead. If lookahead < MIN_MATCH
+ * these bytes are garbage, but it does not matter since the
+ * next lookahead bytes will always be emitted as literals.
+ */
+ } while (--prev_length != 0);
+ match_available = 0;
+ match_length = MIN_MATCH-1;
+ strstart++;
+ if (flush) FLUSH_BLOCK(0), block_start = strstart;
+
+ } else if (match_available) {
+ /* If there was no match at the previous position, output a
+ * single literal. If there was a match but the current match
+ * is longer, truncate the previous match to a single literal.
+ */
+ Tracevv((stderr,"%c",window[strstart-1]));
+ if (ct_tally (0, window[strstart-1])) {
+ FLUSH_BLOCK(0), block_start = strstart;
+ }
+ strstart++;
+ lookahead--;
+ } else {
+ /* There is no previous match to compare with, wait for
+ * the next step to decide.
+ */
+ match_available = 1;
+ strstart++;
+ lookahead--;
+ }
+ Assert (strstart <= bytes_in && lookahead <= bytes_in, "a bit too far");
+
+ /* Make sure that we always have enough lookahead, except
+ * at the end of the input file. We need MAX_MATCH bytes
+ * for the next match, plus MIN_MATCH bytes to insert the
+ * string following the next match.
+ */
+ while (lookahead < MIN_LOOKAHEAD && !eofile) fill_window();
+ }
+ if (match_available) ct_tally (0, window[strstart-1]);
+
+ return FLUSH_BLOCK(1); /* eof */
+}
--- /dev/null
+#! /bin/sh
+
+# depcomp - compile a program generating dependencies as side-effects
+# Copyright 1999, 2000 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+ echo "depcomp: Variables source, object and depmode must be set" 1>&2
+ exit 1
+fi
+# `libtool' can also be set to `yes' or `no'.
+
+depfile=${depfile-`echo "$object" | sed 's,\([^/]*\)$,.deps/\1,;s/\.\([^.]*\)$/.P\1/'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Some modes work just like other modes, but use different flags. We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write. Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+ # HP compiler uses -M and no extra arg.
+ gccflag=-M
+ depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+ # This is just like dashmstdout with a different argument.
+ dashmflag=-xM
+ depmode=dashmstdout
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want. Yay! Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff. Hmm.
+ "$@" -MT "$object" -MD -MP -MF "$tmpdepfile"
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ mv "$tmpdepfile" "$depfile"
+ ;;
+
+gcc)
+## There are various ways to get dependency output from gcc. Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+## up in a subdir. Having to rename by hand is ugly.
+## (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+## -MM, not -M (despite what the docs say).
+## - Using -M directly means running the compiler twice (even worse
+## than renaming).
+ if test -z "$gccflag"; then
+ gccflag=-MD,
+ fi
+ "$@" -Wp,"$gccflag$tmpdepfile"
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
+## The second -e expression handles DOS-style file names with drive letters.
+ sed -e 's/^[^:]*: / /' \
+ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the `deleted header file' problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header). We avoid this by adding
+## dummy dependencies for each header file. Too bad gcc doesn't do
+## this for us directly.
+ tr ' ' '
+' < "$tmpdepfile" |
+## Some versions of gcc put a space before the `:'. On the theory
+## that the space means something, we add a space to the output as
+## well.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+hp)
+ # This case exists only to let depend.m4 do its work. It works by
+ # looking at the text of this script. This case will never be run,
+ # since it is checked for above.
+ exit 1
+ ;;
+
+sgi)
+ if test "$libtool" = yes; then
+ "$@" "-Wp,-MDupdate,$tmpdepfile"
+ else
+ "$@" -MDupdate "$tmpdepfile"
+ fi
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+
+ if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
+ echo "$object : \\" > "$depfile"
+
+ # Clip off the initial element (the dependent). Don't try to be
+ # clever and replace this with sed code, as IRIX sed won't handle
+ # lines with more than a fixed number of characters (4096 in
+ # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
+ # the IRIX cc adds comments like `#:fec' to the end of the
+ # dependency line.
+ tr ' ' '
+' < "$tmpdepfile" \
+ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
+ tr '
+' ' ' >> $depfile
+ echo >> $depfile
+
+ # The second pass generates a dummy entry for each header file.
+ tr ' ' '
+' < "$tmpdepfile" \
+ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+ >> $depfile
+ else
+ # The sourcefile does not contain any dependencies, so just
+ # store a dummy comment line, to avoid errors with the Makefile
+ # "include basename.Plo" scheme.
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+aix)
+ # The C for AIX Compiler uses -M and outputs the dependencies
+ # in a .u file. This file always lives in the current directory.
+ # Also, the AIX compiler puts `$object:' at the start of each line;
+ # $object doesn't have directory information.
+ stripped=`echo "$object" | sed -e 's,^.*/,,' -e 's/\(.*\)\..*$/\1/'`
+ tmpdepfile="$stripped.u"
+ outname="$stripped.o"
+ if test "$libtool" = yes; then
+ "$@" -Wc,-M
+ else
+ "$@" -M
+ fi
+
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+
+ if test -f "$tmpdepfile"; then
+ # Each line is of the form `foo.o: dependent.h'.
+ # Do two passes, one to just change these to
+ # `$object: dependent.h' and one to simply `dependent.h:'.
+ sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
+ sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
+ else
+ # The sourcefile does not contain any dependencies, so just
+ # store a dummy comment line, to avoid errors with the Makefile
+ # "include basename.Plo" scheme.
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+tru64)
+ # The Tru64 AIX compiler uses -MD to generate dependencies as a side
+ # effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
+ # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+ # dependencies in `foo.d' instead, so we check for that too.
+ # Subdirectories are respected.
+
+ tmpdepfile1="$object.d"
+ tmpdepfile2=`echo "$object" | sed -e 's/.o$/.d/'`
+ if test "$libtool" = yes; then
+ "$@" -Wc,-MD
+ else
+ "$@" -MD
+ fi
+
+ stat=$?
+ if test $stat -eq 0; then :
+ else
+ rm -f "$tmpdepfile1" "$tmpdepfile2"
+ exit $stat
+ fi
+
+ if test -f "$tmpdepfile1"; then
+ tmpdepfile="$tmpdepfile1"
+ else
+ tmpdepfile="$tmpdepfile2"
+ fi
+ if test -f "$tmpdepfile"; then
+ sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
+ # That's a space and a tab in the [].
+ sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
+ else
+ echo "#dummy" > "$depfile"
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+#nosideeffect)
+ # This comment above is used by automake to tell side-effect
+ # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the proprocessed file to stdout, regardless of -o,
+ # because we must use -o when running libtool.
+ test -z "$dashmflag" && dashmflag=-M
+ ( IFS=" "
+ case " $* " in
+ *" --mode=compile "*) # this is libtool, let us make it quiet
+ for arg
+ do # cycle over the arguments
+ case "$arg" in
+ "--mode=compile")
+ # insert --quiet before "--mode=compile"
+ set fnord "$@" --quiet
+ shift # fnord
+ ;;
+ esac
+ set fnord "$@" "$arg"
+ shift # fnord
+ shift # "$arg"
+ done
+ ;;
+ esac
+ "$@" $dashmflag | sed 's:^[^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
+ ) &
+ proc=$!
+ "$@"
+ stat=$?
+ wait "$proc"
+ if test "$stat" != 0; then exit $stat; fi
+ rm -f "$depfile"
+ cat < "$tmpdepfile" > "$depfile"
+ tr ' ' '
+' < "$tmpdepfile" | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+dashXmstdout)
+ # This case only exists to satisfy depend.m4. It is never actually
+ # run, as this mode is specially recognized in the preamble.
+ exit 1
+ ;;
+
+makedepend)
+ # X makedepend
+ (
+ shift
+ cleared=no
+ for arg in "$@"; do
+ case $cleared in no)
+ set ""; shift
+ cleared=yes
+ esac
+ case "$arg" in
+ -D*|-I*)
+ set fnord "$@" "$arg"; shift;;
+ -*)
+ ;;
+ *)
+ set fnord "$@" "$arg"; shift;;
+ esac
+ done
+ obj_suffix="`echo $object | sed 's/^.*\././'`"
+ touch "$tmpdepfile"
+ ${MAKEDEPEND-makedepend} 2>/dev/null -o"$obj_suffix" -f"$tmpdepfile" "$@"
+ ) &
+ proc=$!
+ "$@"
+ stat=$?
+ wait "$proc"
+ if test "$stat" != 0; then exit $stat; fi
+ rm -f "$depfile"
+ cat < "$tmpdepfile" > "$depfile"
+ tail +3 "$tmpdepfile" | tr ' ' '
+' | \
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile" "$tmpdepfile".bak
+ ;;
+
+cpp)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the proprocessed file to stdout, regardless of -o,
+ # because we must use -o when running libtool.
+ ( IFS=" "
+ case " $* " in
+ *" --mode=compile "*)
+ for arg
+ do # cycle over the arguments
+ case $arg in
+ "--mode=compile")
+ # insert --quiet before "--mode=compile"
+ set fnord "$@" --quiet
+ shift # fnord
+ ;;
+ esac
+ set fnord "$@" "$arg"
+ shift # fnord
+ shift # "$arg"
+ done
+ ;;
+ esac
+ "$@" -E |
+ sed -n '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
+ sed '$ s: \\$::' > "$tmpdepfile"
+ ) &
+ proc=$!
+ "$@"
+ stat=$?
+ wait "$proc"
+ if test "$stat" != 0; then exit $stat; fi
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ cat < "$tmpdepfile" >> "$depfile"
+ sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+msvisualcpp)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the proprocessed file to stdout, regardless of -o,
+ # because we must use -o when running libtool.
+ ( IFS=" "
+ case " $* " in
+ *" --mode=compile "*)
+ for arg
+ do # cycle over the arguments
+ case $arg in
+ "--mode=compile")
+ # insert --quiet before "--mode=compile"
+ set fnord "$@" --quiet
+ shift # fnord
+ ;;
+ esac
+ set fnord "$@" "$arg"
+ shift # fnord
+ shift # "$arg"
+ done
+ ;;
+ esac
+ "$@" -E |
+ sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
+ ) &
+ proc=$!
+ "$@"
+ stat=$?
+ wait "$proc"
+ if test "$stat" != 0; then exit $stat; fi
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
+ echo " " >> "$depfile"
+ . "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+none)
+ exec "$@"
+ ;;
+
+*)
+ echo "Unknown depmode $depmode" 1>&2
+ exit 1
+ ;;
+esac
+
+exit 0
--- /dev/null
+/* Getopt for GNU.
+ NOTE: getopt is now part of the C library, so if you don't know what
+ "Keep this file name-space clean" means, talk to drepper@gnu.org
+ before changing it!
+ Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+\f
+/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
+ Ditto for AIX 3.2 and <stdlib.h>. */
+#ifndef _NO_PROTO
+# define _NO_PROTO
+#endif
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if !defined __STDC__ || !__STDC__
+/* This is a separate conditional since some stdc systems
+ reject `defined (const)'. */
+# ifndef const
+# define const
+# endif
+#endif
+
+#include <stdio.h>
+
+/* Comment out all this code if we are using the GNU C Library, and are not
+ actually compiling the library itself. This code is part of the GNU C
+ Library, but also included in many other GNU distributions. Compiling
+ and linking in this code is a waste when using the GNU C library
+ (especially if it is a shared library). Rather than having every GNU
+ program understand `configure --with-gnu-libc' and omit the object files,
+ it is simpler to just do this in the source for each such file. */
+
+#define GETOPT_INTERFACE_VERSION 2
+#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
+# include <gnu-versions.h>
+# if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
+# define ELIDE_CODE
+# endif
+#endif
+
+#ifndef ELIDE_CODE
+
+
+/* This needs to come after some library #include
+ to get __GNU_LIBRARY__ defined. */
+#ifdef __GNU_LIBRARY__
+/* Don't include stdlib.h for non-GNU C libraries because some of them
+ contain conflicting prototypes for getopt. */
+# include <stdlib.h>
+# include <unistd.h>
+#endif /* GNU C library. */
+
+#ifdef VMS
+# include <unixlib.h>
+# if HAVE_STRING_H - 0
+# include <string.h>
+# endif
+#endif
+
+#ifndef _
+/* This is for other GNU distributions with internationalized messages. */
+# if defined HAVE_LIBINTL_H || defined _LIBC
+# include <libintl.h>
+# ifndef _
+# define _(msgid) gettext (msgid)
+# endif
+# else
+# define _(msgid) (msgid)
+# endif
+#endif
+
+/* This version of `getopt' appears to the caller like standard Unix `getopt'
+ but it behaves differently for the user, since it allows the user
+ to intersperse the options with the other arguments.
+
+ As `getopt' works, it permutes the elements of ARGV so that,
+ when it is done, all the options precede everything else. Thus
+ all application programs are extended to handle flexible argument order.
+
+ Setting the environment variable POSIXLY_CORRECT disables permutation.
+ Then the behavior is completely standard.
+
+ GNU application programs can use a third alternative mode in which
+ they can distinguish the relative order of options and other arguments. */
+
+#include "getopt.h"
+
+/* For communication from `getopt' to the caller.
+ When `getopt' finds an option that takes an argument,
+ the argument value is returned here.
+ Also, when `ordering' is RETURN_IN_ORDER,
+ each non-option ARGV-element is returned here. */
+
+char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+ This is used for communication to and from the caller
+ and for communication between successive calls to `getopt'.
+
+ On entry to `getopt', zero means this is the first call; initialize.
+
+ When `getopt' returns -1, this is the index of the first of the
+ non-option elements that the caller should itself scan.
+
+ Otherwise, `optind' communicates from one call to the next
+ how much of ARGV has been scanned so far. */
+
+/* 1003.2 says this must be 1 before any call. */
+int optind = 1;
+
+/* Formerly, initialization of getopt depended on optind==0, which
+ causes problems with re-calling getopt as programs generally don't
+ know that. */
+
+int __getopt_initialized;
+
+/* The next char to be scanned in the option-element
+ in which the last option character we returned was found.
+ This allows us to pick up the scan where we left off.
+
+ If this is zero, or a null string, it means resume the scan
+ by advancing to the next ARGV-element. */
+
+static char *nextchar;
+
+/* Callers store zero here to inhibit the error message
+ for unrecognized options. */
+
+int opterr = 1;
+
+/* Set to an option character which was unrecognized.
+ This must be initialized on some systems to avoid linking in the
+ system's own getopt implementation. */
+
+int optopt = '?';
+
+/* Describe how to deal with options that follow non-option ARGV-elements.
+
+ If the caller did not specify anything,
+ the default is REQUIRE_ORDER if the environment variable
+ POSIXLY_CORRECT is defined, PERMUTE otherwise.
+
+ REQUIRE_ORDER means don't recognize them as options;
+ stop option processing when the first non-option is seen.
+ This is what Unix does.
+ This mode of operation is selected by either setting the environment
+ variable POSIXLY_CORRECT, or using `+' as the first character
+ of the list of option characters.
+
+ PERMUTE is the default. We permute the contents of ARGV as we scan,
+ so that eventually all the non-options are at the end. This allows options
+ to be given in any order, even with programs that were not written to
+ expect this.
+
+ RETURN_IN_ORDER is an option available to programs that were written
+ to expect options and other ARGV-elements in any order and that care about
+ the ordering of the two. We describe each non-option ARGV-element
+ as if it were the argument of an option with character code 1.
+ Using `-' as the first character of the list of option characters
+ selects this mode of operation.
+
+ The special argument `--' forces an end of option-scanning regardless
+ of the value of `ordering'. In the case of RETURN_IN_ORDER, only
+ `--' can cause `getopt' to return -1 with `optind' != ARGC. */
+
+static enum
+{
+ REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
+} ordering;
+
+/* Value of POSIXLY_CORRECT environment variable. */
+static char *posixly_correct;
+\f
+#ifdef __GNU_LIBRARY__
+/* We want to avoid inclusion of string.h with non-GNU libraries
+ because there are many ways it can cause trouble.
+ On some systems, it contains special magic macros that don't work
+ in GCC. */
+# include <string.h>
+# define my_index strchr
+#else
+
+# if HAVE_STRING_H
+# include <string.h>
+# else
+# include <strings.h>
+# endif
+
+/* Avoid depending on library functions or files
+ whose names are inconsistent. */
+
+#ifndef getenv
+extern char *getenv ();
+#endif
+
+static char *
+my_index (str, chr)
+ const char *str;
+ int chr;
+{
+ while (*str)
+ {
+ if (*str == chr)
+ return (char *) str;
+ str++;
+ }
+ return 0;
+}
+
+/* If using GCC, we can safely declare strlen this way.
+ If not using GCC, it is ok not to declare it. */
+#ifdef __GNUC__
+/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
+ That was relevant to code that was here before. */
+# if (!defined __STDC__ || !__STDC__) && !defined strlen
+/* gcc with -traditional declares the built-in strlen to return int,
+ and has done so at least since version 2.4.5. -- rms. */
+extern int strlen (const char *);
+# endif /* not __STDC__ */
+#endif /* __GNUC__ */
+
+#endif /* not __GNU_LIBRARY__ */
+\f
+/* Handle permutation of arguments. */
+
+/* Describe the part of ARGV that contains non-options that have
+ been skipped. `first_nonopt' is the index in ARGV of the first of them;
+ `last_nonopt' is the index after the last of them. */
+
+static int first_nonopt;
+static int last_nonopt;
+
+#ifdef _LIBC
+/* Bash 2.0 gives us an environment variable containing flags
+ indicating ARGV elements that should not be considered arguments. */
+
+#ifdef USE_NONOPTION_FLAGS
+/* Defined in getopt_init.c */
+extern char *__getopt_nonoption_flags;
+
+static int nonoption_flags_max_len;
+static int nonoption_flags_len;
+#endif
+
+static int original_argc;
+static char *const *original_argv;
+
+/* Make sure the environment variable bash 2.0 puts in the environment
+ is valid for the getopt call we must make sure that the ARGV passed
+ to getopt is that one passed to the process. */
+static void
+__attribute__ ((unused))
+store_args_and_env (int argc, char *const *argv)
+{
+ /* XXX This is no good solution. We should rather copy the args so
+ that we can compare them later. But we must not use malloc(3). */
+ original_argc = argc;
+ original_argv = argv;
+}
+# ifdef text_set_element
+text_set_element (__libc_subinit, store_args_and_env);
+# endif /* text_set_element */
+
+# ifdef USE_NONOPTION_FLAGS
+# define SWAP_FLAGS(ch1, ch2) \
+ if (nonoption_flags_len > 0) \
+ { \
+ char __tmp = __getopt_nonoption_flags[ch1]; \
+ __getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
+ __getopt_nonoption_flags[ch2] = __tmp; \
+ }
+# else
+# define SWAP_FLAGS(ch1, ch2)
+# endif
+#else /* !_LIBC */
+# define SWAP_FLAGS(ch1, ch2)
+#endif /* _LIBC */
+
+/* Exchange two adjacent subsequences of ARGV.
+ One subsequence is elements [first_nonopt,last_nonopt)
+ which contains all the non-options that have been skipped so far.
+ The other is elements [last_nonopt,optind), which contains all
+ the options processed since those non-options were skipped.
+
+ `first_nonopt' and `last_nonopt' are relocated so that they describe
+ the new indices of the non-options in ARGV after they are moved. */
+
+#if defined __STDC__ && __STDC__
+static void exchange (char **);
+#endif
+
+static void
+exchange (argv)
+ char **argv;
+{
+ int bottom = first_nonopt;
+ int middle = last_nonopt;
+ int top = optind;
+ char *tem;
+
+ /* Exchange the shorter segment with the far end of the longer segment.
+ That puts the shorter segment into the right place.
+ It leaves the longer segment in the right place overall,
+ but it consists of two parts that need to be swapped next. */
+
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
+ /* First make sure the handling of the `__getopt_nonoption_flags'
+ string can work normally. Our top argument must be in the range
+ of the string. */
+ if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
+ {
+ /* We must extend the array. The user plays games with us and
+ presents new arguments. */
+ char *new_str = malloc (top + 1);
+ if (new_str == NULL)
+ nonoption_flags_len = nonoption_flags_max_len = 0;
+ else
+ {
+ memset (__mempcpy (new_str, __getopt_nonoption_flags,
+ nonoption_flags_max_len),
+ '\0', top + 1 - nonoption_flags_max_len);
+ nonoption_flags_max_len = top + 1;
+ __getopt_nonoption_flags = new_str;
+ }
+ }
+#endif
+
+ while (top > middle && middle > bottom)
+ {
+ if (top - middle > middle - bottom)
+ {
+ /* Bottom segment is the short one. */
+ int len = middle - bottom;
+ register int i;
+
+ /* Swap it with the top part of the top segment. */
+ for (i = 0; i < len; i++)
+ {
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[top - (middle - bottom) + i];
+ argv[top - (middle - bottom) + i] = tem;
+ SWAP_FLAGS (bottom + i, top - (middle - bottom) + i);
+ }
+ /* Exclude the moved bottom segment from further swapping. */
+ top -= len;
+ }
+ else
+ {
+ /* Top segment is the short one. */
+ int len = top - middle;
+ register int i;
+
+ /* Swap it with the bottom part of the bottom segment. */
+ for (i = 0; i < len; i++)
+ {
+ tem = argv[bottom + i];
+ argv[bottom + i] = argv[middle + i];
+ argv[middle + i] = tem;
+ SWAP_FLAGS (bottom + i, middle + i);
+ }
+ /* Exclude the moved top segment from further swapping. */
+ bottom += len;
+ }
+ }
+
+ /* Update records for the slots the non-options now occupy. */
+
+ first_nonopt += (optind - last_nonopt);
+ last_nonopt = optind;
+}
+
+/* Initialize the internal data when the first call is made. */
+
+#if defined __STDC__ && __STDC__
+static const char *_getopt_initialize (int, char *const *, const char *);
+#endif
+static const char *
+_getopt_initialize (argc, argv, optstring)
+ int argc;
+ char *const *argv;
+ const char *optstring;
+{
+ /* Start processing options with ARGV-element 1 (since ARGV-element 0
+ is the program name); the sequence of previously skipped
+ non-option ARGV-elements is empty. */
+
+ first_nonopt = last_nonopt = optind;
+
+ nextchar = NULL;
+
+ posixly_correct = getenv ("POSIXLY_CORRECT");
+
+ /* Determine how to handle the ordering of options and nonoptions. */
+
+ if (optstring[0] == '-')
+ {
+ ordering = RETURN_IN_ORDER;
+ ++optstring;
+ }
+ else if (optstring[0] == '+')
+ {
+ ordering = REQUIRE_ORDER;
+ ++optstring;
+ }
+ else if (posixly_correct != NULL)
+ ordering = REQUIRE_ORDER;
+ else
+ ordering = PERMUTE;
+
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
+ if (posixly_correct == NULL
+ && argc == original_argc && argv == original_argv)
+ {
+ if (nonoption_flags_max_len == 0)
+ {
+ if (__getopt_nonoption_flags == NULL
+ || __getopt_nonoption_flags[0] == '\0')
+ nonoption_flags_max_len = -1;
+ else
+ {
+ const char *orig_str = __getopt_nonoption_flags;
+ int len = nonoption_flags_max_len = strlen (orig_str);
+ if (nonoption_flags_max_len < argc)
+ nonoption_flags_max_len = argc;
+ __getopt_nonoption_flags =
+ (char *) malloc (nonoption_flags_max_len);
+ if (__getopt_nonoption_flags == NULL)
+ nonoption_flags_max_len = -1;
+ else
+ memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
+ '\0', nonoption_flags_max_len - len);
+ }
+ }
+ nonoption_flags_len = nonoption_flags_max_len;
+ }
+ else
+ nonoption_flags_len = 0;
+#endif
+
+ return optstring;
+}
+\f
+/* Scan elements of ARGV (whose length is ARGC) for option characters
+ given in OPTSTRING.
+
+ If an element of ARGV starts with '-', and is not exactly "-" or "--",
+ then it is an option element. The characters of this element
+ (aside from the initial '-') are option characters. If `getopt'
+ is called repeatedly, it returns successively each of the option characters
+ from each of the option elements.
+
+ If `getopt' finds another option character, it returns that character,
+ updating `optind' and `nextchar' so that the next call to `getopt' can
+ resume the scan with the following option character or ARGV-element.
+
+ If there are no more option characters, `getopt' returns -1.
+ Then `optind' is the index in ARGV of the first ARGV-element
+ that is not an option. (The ARGV-elements have been permuted
+ so that those that are not options now come last.)
+
+ OPTSTRING is a string containing the legitimate option characters.
+ If an option character is seen that is not listed in OPTSTRING,
+ return '?' after printing an error message. If you set `opterr' to
+ zero, the error message is suppressed but we still return '?'.
+
+ If a char in OPTSTRING is followed by a colon, that means it wants an arg,
+ so the following text in the same ARGV-element, or the text of the following
+ ARGV-element, is returned in `optarg'. Two colons mean an option that
+ wants an optional arg; if there is text in the current ARGV-element,
+ it is returned in `optarg', otherwise `optarg' is set to zero.
+
+ If OPTSTRING starts with `-' or `+', it requests different methods of
+ handling the non-option ARGV-elements.
+ See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above.
+
+ Long-named options begin with `--' instead of `-'.
+ Their names may be abbreviated as long as the abbreviation is unique
+ or is an exact match for some defined option. If they have an
+ argument, it follows the option name in the same ARGV-element, separated
+ from the option name by a `=', or else the in next ARGV-element.
+ When `getopt' finds a long-named option, it returns 0 if that option's
+ `flag' field is nonzero, the value of the option's `val' field
+ if the `flag' field is zero.
+
+ The elements of ARGV aren't really const, because we permute them.
+ But we pretend they're const in the prototype to be compatible
+ with other systems.
+
+ LONGOPTS is a vector of `struct option' terminated by an
+ element containing a name which is zero.
+
+ LONGIND returns the index in LONGOPT of the long-named option found.
+ It is only valid when a long-named option has been found by the most
+ recent call.
+
+ If LONG_ONLY is nonzero, '-' as well as '--' can introduce
+ long-named options. */
+
+int
+_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
+ int argc;
+ char *const *argv;
+ const char *optstring;
+ const struct option *longopts;
+ int *longind;
+ int long_only;
+{
+ int print_errors = opterr;
+ if (optstring[0] == ':')
+ print_errors = 0;
+
+ if (argc < 1)
+ return -1;
+
+ optarg = NULL;
+
+ if (optind == 0 || !__getopt_initialized)
+ {
+ if (optind == 0)
+ optind = 1; /* Don't scan ARGV[0], the program name. */
+ optstring = _getopt_initialize (argc, argv, optstring);
+ __getopt_initialized = 1;
+ }
+
+ /* Test whether ARGV[optind] points to a non-option argument.
+ Either it does not have option syntax, or there is an environment flag
+ from the shell indicating it is not an option. The later information
+ is only used when the used in the GNU libc. */
+#if defined _LIBC && defined USE_NONOPTION_FLAGS
+# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
+ || (optind < nonoption_flags_len \
+ && __getopt_nonoption_flags[optind] == '1'))
+#else
+# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
+#endif
+
+ if (nextchar == NULL || *nextchar == '\0')
+ {
+ /* Advance to the next ARGV-element. */
+
+ /* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
+ moved back by the user (who may also have changed the arguments). */
+ if (last_nonopt > optind)
+ last_nonopt = optind;
+ if (first_nonopt > optind)
+ first_nonopt = optind;
+
+ if (ordering == PERMUTE)
+ {
+ /* If we have just processed some options following some non-options,
+ exchange them so that the options come first. */
+
+ if (first_nonopt != last_nonopt && last_nonopt != optind)
+ exchange ((char **) argv);
+ else if (last_nonopt != optind)
+ first_nonopt = optind;
+
+ /* Skip any additional non-options
+ and extend the range of non-options previously skipped. */
+
+ while (optind < argc && NONOPTION_P)
+ optind++;
+ last_nonopt = optind;
+ }
+
+ /* The special ARGV-element `--' means premature end of options.
+ Skip it like a null option,
+ then exchange with previous non-options as if it were an option,
+ then skip everything else like a non-option. */
+
+ if (optind != argc && !strcmp (argv[optind], "--"))
+ {
+ optind++;
+
+ if (first_nonopt != last_nonopt && last_nonopt != optind)
+ exchange ((char **) argv);
+ else if (first_nonopt == last_nonopt)
+ first_nonopt = optind;
+ last_nonopt = argc;
+
+ optind = argc;
+ }
+
+ /* If we have done all the ARGV-elements, stop the scan
+ and back over any non-options that we skipped and permuted. */
+
+ if (optind == argc)
+ {
+ /* Set the next-arg-index to point at the non-options
+ that we previously skipped, so the caller will digest them. */
+ if (first_nonopt != last_nonopt)
+ optind = first_nonopt;
+ return -1;
+ }
+
+ /* If we have come to a non-option and did not permute it,
+ either stop the scan or describe it to the caller and pass it by. */
+
+ if (NONOPTION_P)
+ {
+ if (ordering == REQUIRE_ORDER)
+ return -1;
+ optarg = argv[optind++];
+ return 1;
+ }
+
+ /* We have found another option-ARGV-element.
+ Skip the initial punctuation. */
+
+ nextchar = (argv[optind] + 1
+ + (longopts != NULL && argv[optind][1] == '-'));
+ }
+
+ /* Decode the current option-ARGV-element. */
+
+ /* Check whether the ARGV-element is a long option.
+
+ If long_only and the ARGV-element has the form "-f", where f is
+ a valid short option, don't consider it an abbreviated form of
+ a long option that starts with f. Otherwise there would be no
+ way to give the -f short option.
+
+ On the other hand, if there's a long option "fubar" and
+ the ARGV-element is "-fu", do consider that an abbreviation of
+ the long option, just like "--fu", and not "-f" with arg "u".
+
+ This distinction seems to be the most useful approach. */
+
+ if (longopts != NULL
+ && (argv[optind][1] == '-'
+ || (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
+ {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = -1;
+ int option_index;
+
+ for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for (p = longopts, option_index = 0; p->name; p++, option_index++)
+ if (!strncmp (p->name, nextchar, nameend - nextchar))
+ {
+ if ((unsigned int) (nameend - nextchar)
+ == (unsigned int) strlen (p->name))
+ {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ }
+ else if (pfound == NULL)
+ {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ }
+ else if (long_only
+ || pfound->has_arg != p->has_arg
+ || pfound->flag != p->flag
+ || pfound->val != p->val)
+ /* Second or later nonexact match found. */
+ ambig = 1;
+ }
+
+ if (ambig && !exact)
+ {
+ if (print_errors)
+ fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
+ argv[0], argv[optind]);
+ nextchar += strlen (nextchar);
+ optind++;
+ optopt = 0;
+ return '?';
+ }
+
+ if (pfound != NULL)
+ {
+ option_index = indfound;
+ optind++;
+ if (*nameend)
+ {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if (pfound->has_arg)
+ optarg = nameend + 1;
+ else
+ {
+ if (print_errors)
+ {
+ if (argv[optind - 1][1] == '-')
+ /* --option */
+ fprintf (stderr,
+ _("%s: option `--%s' doesn't allow an argument\n"),
+ argv[0], pfound->name);
+ else
+ /* +option or -option */
+ fprintf (stderr,
+ _("%s: option `%c%s' doesn't allow an argument\n"),
+ argv[0], argv[optind - 1][0], pfound->name);
+ }
+
+ nextchar += strlen (nextchar);
+
+ optopt = pfound->val;
+ return '?';
+ }
+ }
+ else if (pfound->has_arg == 1)
+ {
+ if (optind < argc)
+ optarg = argv[optind++];
+ else
+ {
+ if (print_errors)
+ fprintf (stderr,
+ _("%s: option `%s' requires an argument\n"),
+ argv[0], argv[optind - 1]);
+ nextchar += strlen (nextchar);
+ optopt = pfound->val;
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+ nextchar += strlen (nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag)
+ {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+ return pfound->val;
+ }
+
+ /* Can't find it as a long option. If this is not getopt_long_only,
+ or the option starts with '--' or is not a valid short
+ option, then it's an error.
+ Otherwise interpret it as a short option. */
+ if (!long_only || argv[optind][1] == '-'
+ || my_index (optstring, *nextchar) == NULL)
+ {
+ if (print_errors)
+ {
+ if (argv[optind][1] == '-')
+ /* --option */
+ fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
+ argv[0], nextchar);
+ else
+ /* +option or -option */
+ fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
+ argv[0], argv[optind][0], nextchar);
+ }
+ nextchar = (char *) "";
+ optind++;
+ optopt = 0;
+ return '?';
+ }
+ }
+
+ /* Look at and handle the next short option-character. */
+
+ {
+ char c = *nextchar++;
+ char *temp = my_index (optstring, c);
+
+ /* Increment `optind' when we start to process its last character. */
+ if (*nextchar == '\0')
+ ++optind;
+
+ if (temp == NULL || c == ':')
+ {
+ if (print_errors)
+ {
+ if (posixly_correct)
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, _("%s: illegal option -- %c\n"),
+ argv[0], c);
+ else
+ fprintf (stderr, _("%s: invalid option -- %c\n"),
+ argv[0], c);
+ }
+ optopt = c;
+ return '?';
+ }
+ /* Convenience. Treat POSIX -W foo same as long option --foo */
+ if (temp[0] == 'W' && temp[1] == ';')
+ {
+ char *nameend;
+ const struct option *p;
+ const struct option *pfound = NULL;
+ int exact = 0;
+ int ambig = 0;
+ int indfound = 0;
+ int option_index;
+
+ /* This is an option that requires an argument. */
+ if (*nextchar != '\0')
+ {
+ optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ optind++;
+ }
+ else if (optind == argc)
+ {
+ if (print_errors)
+ {
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+ }
+ optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ return c;
+ }
+ else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ optarg = argv[optind++];
+
+ /* optarg is now the argument, see if it's in the
+ table of longopts. */
+
+ for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
+ /* Do nothing. */ ;
+
+ /* Test all long options for either exact match
+ or abbreviated matches. */
+ for (p = longopts, option_index = 0; p->name; p++, option_index++)
+ if (!strncmp (p->name, nextchar, nameend - nextchar))
+ {
+ if ((unsigned int) (nameend - nextchar) == strlen (p->name))
+ {
+ /* Exact match found. */
+ pfound = p;
+ indfound = option_index;
+ exact = 1;
+ break;
+ }
+ else if (pfound == NULL)
+ {
+ /* First nonexact match found. */
+ pfound = p;
+ indfound = option_index;
+ }
+ else
+ /* Second or later nonexact match found. */
+ ambig = 1;
+ }
+ if (ambig && !exact)
+ {
+ if (print_errors)
+ fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
+ argv[0], argv[optind]);
+ nextchar += strlen (nextchar);
+ optind++;
+ return '?';
+ }
+ if (pfound != NULL)
+ {
+ option_index = indfound;
+ if (*nameend)
+ {
+ /* Don't test has_arg with >, because some C compilers don't
+ allow it to be used on enums. */
+ if (pfound->has_arg)
+ optarg = nameend + 1;
+ else
+ {
+ if (print_errors)
+ fprintf (stderr, _("\
+%s: option `-W %s' doesn't allow an argument\n"),
+ argv[0], pfound->name);
+
+ nextchar += strlen (nextchar);
+ return '?';
+ }
+ }
+ else if (pfound->has_arg == 1)
+ {
+ if (optind < argc)
+ optarg = argv[optind++];
+ else
+ {
+ if (print_errors)
+ fprintf (stderr,
+ _("%s: option `%s' requires an argument\n"),
+ argv[0], argv[optind - 1]);
+ nextchar += strlen (nextchar);
+ return optstring[0] == ':' ? ':' : '?';
+ }
+ }
+ nextchar += strlen (nextchar);
+ if (longind != NULL)
+ *longind = option_index;
+ if (pfound->flag)
+ {
+ *(pfound->flag) = pfound->val;
+ return 0;
+ }
+ return pfound->val;
+ }
+ nextchar = NULL;
+ return 'W'; /* Let the application handle it. */
+ }
+ if (temp[1] == ':')
+ {
+ if (temp[2] == ':')
+ {
+ /* This is an option that accepts an argument optionally. */
+ if (*nextchar != '\0')
+ {
+ optarg = nextchar;
+ optind++;
+ }
+ else
+ optarg = NULL;
+ nextchar = NULL;
+ }
+ else
+ {
+ /* This is an option that requires an argument. */
+ if (*nextchar != '\0')
+ {
+ optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ optind++;
+ }
+ else if (optind == argc)
+ {
+ if (print_errors)
+ {
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr,
+ _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+ }
+ optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ }
+ else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ optarg = argv[optind++];
+ nextchar = NULL;
+ }
+ }
+ return c;
+ }
+}
+
+int
+getopt (argc, argv, optstring)
+ int argc;
+ char *const *argv;
+ const char *optstring;
+{
+ return _getopt_internal (argc, argv, optstring,
+ (const struct option *) 0,
+ (int *) 0,
+ 0);
+}
+
+#endif /* Not ELIDE_CODE. */
+\f
+#ifdef TEST
+
+/* Compile with -DTEST to make an executable for use in testing
+ the above definition of `getopt'. */
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ int c;
+ int digit_optind = 0;
+
+ while (1)
+ {
+ int this_option_optind = optind ? optind : 1;
+
+ c = getopt (argc, argv, "abc:d:0123456789");
+ if (c == -1)
+ break;
+
+ switch (c)
+ {
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ if (digit_optind != 0 && digit_optind != this_option_optind)
+ printf ("digits occur in two different argv-elements.\n");
+ digit_optind = this_option_optind;
+ printf ("option %c\n", c);
+ break;
+
+ case 'a':
+ printf ("option a\n");
+ break;
+
+ case 'b':
+ printf ("option b\n");
+ break;
+
+ case 'c':
+ printf ("option c with value `%s'\n", optarg);
+ break;
+
+ case '?':
+ break;
+
+ default:
+ printf ("?? getopt returned character code 0%o ??\n", c);
+ }
+ }
+
+ if (optind < argc)
+ {
+ printf ("non-option ARGV-elements: ");
+ while (optind < argc)
+ printf ("%s ", argv[optind++]);
+ printf ("\n");
+ }
+
+ exit (0);
+}
+
+#endif /* TEST */
--- /dev/null
+/* Declarations for getopt.
+ Copyright (C) 1989-1994, 1996-1999, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifndef _GETOPT_H
+
+#ifndef __need_getopt
+# define _GETOPT_H 1
+#endif
+
+/* If __GNU_LIBRARY__ is not already defined, either we are being used
+ standalone, or this is the first header included in the source file.
+ If we are being used with glibc, we need to include <features.h>, but
+ that does not exist if we are standalone. So: if __GNU_LIBRARY__ is
+ not defined, include <ctype.h>, which will pull in <features.h> for us
+ if it's from glibc. (Why ctype.h? It's guaranteed to exist and it
+ doesn't flood the namespace with stuff the way some other headers do.) */
+#if !defined __GNU_LIBRARY__
+# include <ctype.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* For communication from `getopt' to the caller.
+ When `getopt' finds an option that takes an argument,
+ the argument value is returned here.
+ Also, when `ordering' is RETURN_IN_ORDER,
+ each non-option ARGV-element is returned here. */
+
+extern char *optarg;
+
+/* Index in ARGV of the next element to be scanned.
+ This is used for communication to and from the caller
+ and for communication between successive calls to `getopt'.
+
+ On entry to `getopt', zero means this is the first call; initialize.
+
+ When `getopt' returns -1, this is the index of the first of the
+ non-option elements that the caller should itself scan.
+
+ Otherwise, `optind' communicates from one call to the next
+ how much of ARGV has been scanned so far. */
+
+extern int optind;
+
+/* Callers store zero here to inhibit the error message `getopt' prints
+ for unrecognized options. */
+
+extern int opterr;
+
+/* Set to an option character which was unrecognized. */
+
+extern int optopt;
+
+#ifndef __need_getopt
+/* Describe the long-named options requested by the application.
+ The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
+ of `struct option' terminated by an element containing a name which is
+ zero.
+
+ The field `has_arg' is:
+ no_argument (or 0) if the option does not take an argument,
+ required_argument (or 1) if the option requires an argument,
+ optional_argument (or 2) if the option takes an optional argument.
+
+ If the field `flag' is not NULL, it points to a variable that is set
+ to the value given in the field `val' when the option is found, but
+ left unchanged if the option is not found.
+
+ To have a long-named option do something other than set an `int' to
+ a compiled-in constant, such as set a value from `optarg', set the
+ option's `flag' field to zero and its `val' field to a nonzero
+ value (the equivalent single-letter option character, if there is
+ one). For long options that have a zero `flag' field, `getopt'
+ returns the contents of the `val' field. */
+
+struct option
+{
+# if (defined __STDC__ && __STDC__) || defined __cplusplus
+ const char *name;
+# else
+ char *name;
+# endif
+ /* has_arg can't be an enum because some compilers complain about
+ type mismatches in all the code that assumes it is an int. */
+ int has_arg;
+ int *flag;
+ int val;
+};
+
+/* Names for the values of the `has_arg' field of `struct option'. */
+
+# define no_argument 0
+# define required_argument 1
+# define optional_argument 2
+#endif /* need getopt */
+
+
+/* Get definitions and prototypes for functions to process the
+ arguments in ARGV (ARGC of them, minus the program name) for
+ options given in OPTS.
+
+ Return the option character from OPTS just read. Return -1 when
+ there are no more options. For unrecognized options, or options
+ missing arguments, `optopt' is set to the option letter, and '?' is
+ returned.
+
+ The OPTS string is a list of characters which are recognized option
+ letters, optionally followed by colons, specifying that that letter
+ takes an argument, to be placed in `optarg'.
+
+ If a letter in OPTS is followed by two colons, its argument is
+ optional. This behavior is specific to the GNU `getopt'.
+
+ The argument `--' causes premature termination of argument
+ scanning, explicitly telling `getopt' that there are no more
+ options.
+
+ If OPTS begins with `--', then non-option arguments are treated as
+ arguments to the option '\0'. This behavior is specific to the GNU
+ `getopt'. */
+
+#if (defined __STDC__ && __STDC__) || defined __cplusplus
+# ifdef __GNU_LIBRARY__
+/* Many other libraries have conflicting prototypes for getopt, with
+ differences in the consts, in stdlib.h. To avoid compilation
+ errors, only prototype getopt for the GNU C library. */
+extern int getopt (int __argc, char *const *__argv, const char *__shortopts);
+# else /* not __GNU_LIBRARY__ */
+extern int getopt ();
+# endif /* __GNU_LIBRARY__ */
+
+# ifndef __need_getopt
+extern int getopt_long (int __argc, char *const *__argv, const char *__shortopts,
+ const struct option *__longopts, int *__longind);
+extern int getopt_long_only (int __argc, char *const *__argv,
+ const char *__shortopts,
+ const struct option *__longopts, int *__longind);
+
+/* Internal only. Users should not call this directly. */
+extern int _getopt_internal (int __argc, char *const *__argv,
+ const char *__shortopts,
+ const struct option *__longopts, int *__longind,
+ int __long_only);
+# endif
+#else /* not __STDC__ */
+extern int getopt ();
+# ifndef __need_getopt
+extern int getopt_long ();
+extern int getopt_long_only ();
+
+extern int _getopt_internal ();
+# endif
+#endif /* __STDC__ */
+
+#ifdef __cplusplus
+}
+#endif
+
+/* Make sure we later can get all the definitions and declarations. */
+#undef __need_getopt
+
+#endif /* getopt.h */
--- /dev/null
+/* getopt_long and getopt_long_only entry points for GNU getopt.
+ Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+\f
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "getopt.h"
+
+#if !defined __STDC__ || !__STDC__
+/* This is a separate conditional since some stdc systems
+ reject `defined (const)'. */
+#ifndef const
+#define const
+#endif
+#endif
+
+#include <stdio.h>
+
+/* Comment out all this code if we are using the GNU C Library, and are not
+ actually compiling the library itself. This code is part of the GNU C
+ Library, but also included in many other GNU distributions. Compiling
+ and linking in this code is a waste when using the GNU C library
+ (especially if it is a shared library). Rather than having every GNU
+ program understand `configure --with-gnu-libc' and omit the object files,
+ it is simpler to just do this in the source for each such file. */
+
+#define GETOPT_INTERFACE_VERSION 2
+#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
+#include <gnu-versions.h>
+#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
+#define ELIDE_CODE
+#endif
+#endif
+
+#ifndef ELIDE_CODE
+
+
+/* This needs to come after some library #include
+ to get __GNU_LIBRARY__ defined. */
+#ifdef __GNU_LIBRARY__
+#include <stdlib.h>
+#endif
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+int
+getopt_long (argc, argv, options, long_options, opt_index)
+ int argc;
+ char *const *argv;
+ const char *options;
+ const struct option *long_options;
+ int *opt_index;
+{
+ return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
+}
+
+/* Like getopt_long, but '-' as well as '--' can indicate a long option.
+ If an option that starts with '-' (not '--') doesn't match a long option,
+ but does match a short option, it is parsed as a short option
+ instead. */
+
+int
+getopt_long_only (argc, argv, options, long_options, opt_index)
+ int argc;
+ char *const *argv;
+ const char *options;
+ const struct option *long_options;
+ int *opt_index;
+{
+ return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
+}
+
+
+#endif /* Not ELIDE_CODE. */
+\f
+#ifdef TEST
+
+#include <stdio.h>
+
+int
+main (argc, argv)
+ int argc;
+ char **argv;
+{
+ int c;
+ int digit_optind = 0;
+
+ while (1)
+ {
+ int this_option_optind = optind ? optind : 1;
+ int option_index = 0;
+ static struct option long_options[] =
+ {
+ {"add", 1, 0, 0},
+ {"append", 0, 0, 0},
+ {"delete", 1, 0, 0},
+ {"verbose", 0, 0, 0},
+ {"create", 0, 0, 0},
+ {"file", 1, 0, 0},
+ {0, 0, 0, 0}
+ };
+
+ c = getopt_long (argc, argv, "abc:d:0123456789",
+ long_options, &option_index);
+ if (c == -1)
+ break;
+
+ switch (c)
+ {
+ case 0:
+ printf ("option %s", long_options[option_index].name);
+ if (optarg)
+ printf (" with arg %s", optarg);
+ printf ("\n");
+ break;
+
+ case '0':
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ case '8':
+ case '9':
+ if (digit_optind != 0 && digit_optind != this_option_optind)
+ printf ("digits occur in two different argv-elements.\n");
+ digit_optind = this_option_optind;
+ printf ("option %c\n", c);
+ break;
+
+ case 'a':
+ printf ("option a\n");
+ break;
+
+ case 'b':
+ printf ("option b\n");
+ break;
+
+ case 'c':
+ printf ("option c with value `%s'\n", optarg);
+ break;
+
+ case 'd':
+ printf ("option d with value `%s'\n", optarg);
+ break;
+
+ case '?':
+ break;
+
+ default:
+ printf ("?? getopt returned character code 0%o ??\n", c);
+ }
+ }
+
+ if (optind < argc)
+ {
+ printf ("non-option ARGV-elements: ");
+ while (optind < argc)
+ printf ("%s ", argv[optind++]);
+ printf ("\n");
+ }
+
+ exit (0);
+}
+
+#endif /* TEST */
--- /dev/null
+.so man1/gzip.1
--- /dev/null
+.TH GZEXE 1
+.SH NAME
+gzexe \- compress executable files in place
+.SH SYNOPSIS
+.B gzexe
+[ name ... ]
+.SH DESCRIPTION
+The
+.I gzexe
+utility allows you to compress executables in place and have them
+automatically uncompress and execute when you run them (at a penalty
+in performance). For example if you execute ``gzexe /bin/cat'' it
+will create the following two files:
+.nf
+.br
+ -r-xr-xr-x 1 root bin 9644 Feb 11 11:16 /bin/cat
+ -r-xr-xr-x 1 bin bin 24576 Nov 23 13:21 /bin/cat~
+.fi
+/bin/cat~ is the original file and /bin/cat is the self-uncompressing
+executable file. You can remove /bin/cat~ once you are sure that
+/bin/cat works properly.
+.PP
+This utility is most useful on systems with very small disks.
+.SH OPTIONS
+.TP
+.B \-d
+Decompress the given executables instead of compressing them.
+.SH "SEE ALSO"
+gzip(1), znew(1), zmore(1), zcmp(1), zforce(1)
+.SH CAVEATS
+The compressed executable is a shell script. This may create some
+security holes. In particular, the compressed executable relies
+on the PATH environment variable to find
+.I gzip
+and some other utilities
+.I (tail, chmod, ln, sleep).
+.SH "BUGS"
+.I gzexe
+attempts to retain the original file attributes on the compressed executable,
+but you may have to fix them manually in some cases, using
+.I chmod
+or
+.I chown.
--- /dev/null
+:
+#!/bin/sh
+# gzexe: compressor for Unix executables.
+# Use this only for binaries that you do not use frequently.
+#
+# The compressed version is a shell script which decompresses itself after
+# skipping $skip lines of shell commands. We try invoking the compressed
+# executable with the original name (for programs looking at their name).
+# We also try to retain the original file permissions on the compressed file.
+# For safety reasons, gzexe will not create setuid or setgid shell scripts.
+
+# WARNING: the first line of this file must be either : or #!/bin/sh
+# The : is required for some old versions of csh.
+# On Ultrix, /bin/sh is too buggy, change the first line to: #!/bin/sh5
+
+x=`basename $0`
+if test $# = 0; then
+ echo compress executables. original file foo is renamed to foo~
+ echo usage: ${x} [-d] files...
+ echo " -d decompress the executables"
+ exit 1
+fi
+
+tmp=gz$$
+trap "rm -f $tmp; exit 1" 1 2 3 5 10 13 15
+
+decomp=0
+res=0
+test "$x" = "ungzexe" && decomp=1
+if test "x$1" = "x-d"; then
+ decomp=1
+ shift
+fi
+
+echo hi > zfoo1$$
+echo hi > zfoo2$$
+if test -z "`(${CPMOD-cpmod} zfoo1$$ zfoo2$$) 2>&1`"; then
+ cpmod=${CPMOD-cpmod}
+fi
+rm -f zfoo[12]$$
+
+tail=""
+IFS="${IFS= }"; saveifs="$IFS"; IFS="${IFS}:"
+for dir in $PATH; do
+ test -z "$dir" && dir=.
+ if test -f $dir/tail; then
+ tail="$dir/tail"
+ break
+ fi
+done
+IFS="$saveifs"
+if test -z "$tail"; then
+ echo cannot find tail
+ exit 1
+fi
+
+for i do
+ if test ! -f "$i" ; then
+ echo ${x}: $i not a file
+ res=1
+ continue
+ fi
+ if test $decomp -eq 0; then
+ if sed -e 1d -e 2q "$i" | grep "^skip=[0-9]*$" >/dev/null; then
+ echo "${x}: $i is already gzexe'd"
+ continue
+ fi
+ fi
+ if ls -l "$i" | grep '^...[sS]' > /dev/null; then
+ echo "${x}: $i has setuid permission, unchanged"
+ continue
+ fi
+ if ls -l "$i" | grep '^......[sS]' > /dev/null; then
+ echo "${x}: $i has setgid permission, unchanged"
+ continue
+ fi
+ case "`basename $i`" in
+ gzip | tail | chmod | ln | sleep | rm)
+ echo "${x}: $i would depend on itself"; continue ;;
+ esac
+ if test -z "$cpmod"; then
+ cp -p "$i" $tmp 2>/dev/null || cp "$i" $tmp
+ if test -w $tmp 2>/dev/null; then
+ writable=1
+ else
+ writable=0
+ chmod u+w $tmp 2>/dev/null
+ fi
+ fi
+ if test $decomp -eq 0; then
+ sed 1q $0 > $tmp
+ sed "s|^if tail|if $tail|" >> $tmp <<'EOF'
+skip=22
+set -C
+umask=`umask`
+umask 77
+if tail +$skip $0 | "BINDIR"/gzip -cd > /tmp/gztmp$$; then
+ umask $umask
+ /bin/chmod 700 /tmp/gztmp$$
+ prog="`echo $0 | /bin/sed 's|^.*/||'`"
+ if /bin/ln /tmp/gztmp$$ "/tmp/$prog" 2>/dev/null; then
+ trap '/bin/rm -f /tmp/gztmp$$ "/tmp/$prog"; exit $res' 0
+ (/bin/sleep 5; /bin/rm -f /tmp/gztmp$$ "/tmp/$prog") 2>/dev/null &
+ /tmp/"$prog" ${1+"$@"}; res=$?
+ else
+ trap '/bin/rm -f /tmp/gztmp$$; exit $res' 0
+ (/bin/sleep 5; /bin/rm -f /tmp/gztmp$$) 2>/dev/null &
+ /tmp/gztmp$$ ${1+"$@"}; res=$?
+ fi
+else
+ echo Cannot decompress $0; exit 1
+fi; exit $res
+EOF
+ gzip -cv9 "$i" >> $tmp || {
+ /bin/rm -f $tmp
+ echo ${x}: compression not possible for $i, file unchanged.
+ res=1
+ continue
+ }
+
+ else
+ # decompression
+ skip=22
+ if sed -e 1d -e 2q "$i" | grep "^skip=[0-9]*$" >/dev/null; then
+ eval `sed -e 1d -e 2q "$i"`
+ fi
+ if tail +$skip "$i" | gzip -cd > $tmp; then
+ :
+ else
+ echo ${x}: $i probably not in gzexe format, file unchanged.
+ res=1
+ continue
+ fi
+ fi
+ rm -f "$i~"
+ mv "$i" "$i~" || {
+ echo ${x}: cannot backup $i as $i~
+ rm -f $tmp
+ res=1
+ continue
+ }
+ mv $tmp "$i" || cp -p $tmp "$i" 2>/dev/null || cp $tmp "$i" || {
+ echo ${x}: cannot create $i
+ rm -f $tmp
+ res=1
+ continue
+ }
+ rm -f $tmp
+ if test -n "$cpmod"; then
+ $cpmod "$i~" "$i" 2>/dev/null
+ elif test $writable -eq 0; then
+ chmod u-w $i 2>/dev/null
+ fi
+done
+exit $res
--- /dev/null
+.TH GZIP 1 local
+.SH NAME
+gzip, gunzip, zcat \- compress or expand files
+.SH SYNOPSIS
+.ll +8
+.B gzip
+.RB [ " \-acdfhlLnNrtvV19 " ]
+.RB [ \-S\ suffix ]
+[
+.I "name \&..."
+]
+.ll -8
+.br
+.B gunzip
+.RB [ " \-acfhlLnNrtvV " ]
+.RB [ \-S\ suffix ]
+[
+.I "name \&..."
+]
+.br
+.B zcat
+.RB [ " \-fhLV " ]
+[
+.I "name \&..."
+]
+.SH DESCRIPTION
+.I Gzip
+reduces the size of the named files using Lempel-Ziv coding (LZ77).
+Whenever possible,
+each file is replaced by one with the extension
+.B "\&.gz,"
+while keeping the same ownership modes, access and modification times.
+(The default extension is
+.B "\-gz"
+for VMS,
+.B "z"
+for MSDOS, OS/2 FAT, Windows NT FAT and Atari.)
+If no files are specified, or if a file name is "-", the standard input is
+compressed to the standard output.
+.I Gzip
+will only attempt to compress regular files.
+In particular, it will ignore symbolic links.
+.PP
+If the compressed file name is too long for its file system,
+.I gzip
+truncates it.
+.I Gzip
+attempts to truncate only the parts of the file name longer than 3 characters.
+(A part is delimited by dots.) If the name consists of small parts only,
+the longest parts are truncated. For example, if file names are limited
+to 14 characters, gzip.msdos.exe is compressed to gzi.msd.exe.gz.
+Names are not truncated on systems which do not have a limit on file name
+length.
+.PP
+By default,
+.I gzip
+keeps the original file name and timestamp in the compressed file. These
+are used when decompressing the file with the
+.B \-N
+option. This is useful when the compressed file name was truncated or
+when the time stamp was not preserved after a file transfer.
+.PP
+Compressed files can be restored to their original form using
+.I gzip -d
+or
+.I gunzip
+or
+.I zcat.
+If the original name saved in the compressed file is not suitable for its
+file system, a new name is constructed from the original one to make it
+legal.
+.PP
+.I gunzip
+takes a list of files on its command line and replaces each
+file whose name ends with .gz, -gz, .z, -z, _z or .Z
+and which begins with the correct magic number with an uncompressed
+file without the original extension.
+.I gunzip
+also recognizes the special extensions
+.B "\&.tgz"
+and
+.B "\&.taz"
+as shorthands for
+.B "\&.tar.gz"
+and
+.B "\&.tar.Z"
+respectively.
+When compressing,
+.I gzip
+uses the
+.B "\&.tgz"
+extension if necessary instead of truncating a file with a
+.B "\&.tar"
+extension.
+.PP
+.I gunzip
+can currently decompress files created by
+.I gzip, zip, compress, compress -H
+or
+.I pack.
+The detection of the input format is automatic. When using
+the first two formats,
+.I gunzip
+checks a 32 bit CRC. For
+.I pack, gunzip
+checks the uncompressed length. The standard
+.I compress
+format was not designed to allow consistency checks. However
+.I gunzip
+is sometimes able to detect a bad .Z file. If you get an error
+when uncompressing a .Z file, do not assume that the .Z file is
+correct simply because the standard
+.I uncompress
+does not complain. This generally means that the standard
+.I uncompress
+does not check its input, and happily generates garbage output.
+The SCO compress -H format (lzh compression method) does not include a CRC
+but also allows some consistency checks.
+.PP
+Files created by
+.I zip
+can be uncompressed by gzip only if they have a single member compressed
+with the 'deflation' method. This feature is only intended to help
+conversion of tar.zip files to the tar.gz format. To extract zip files
+with several members, use
+.I unzip
+instead of
+.I gunzip.
+.PP
+.I zcat
+is identical to
+.I gunzip
+.B \-c.
+(On some systems,
+.I zcat
+may be installed as
+.I gzcat
+to preserve the original link to
+.I compress.)
+.I zcat
+uncompresses either a list of files on the command line or its
+standard input and writes the uncompressed data on standard output.
+.I zcat
+will uncompress files that have the correct magic number whether
+they have a
+.B "\&.gz"
+suffix or not.
+.PP
+.I Gzip
+uses the Lempel-Ziv algorithm used in
+.I zip
+and PKZIP.
+The amount of compression obtained depends on the size of the
+input and the distribution of common substrings.
+Typically, text such as source code or English
+is reduced by 60\-70%.
+Compression is generally much better than that achieved by
+LZW (as used in
+.IR compress ),
+Huffman coding (as used in
+.IR pack ),
+or adaptive Huffman coding
+.RI ( compact ).
+.PP
+Compression is always performed, even if the compressed file is
+slightly larger than the original. The worst case expansion is
+a few bytes for the gzip file header, plus 5 bytes every 32K block,
+or an expansion ratio of 0.015% for large files. Note that the actual
+number of used disk blocks almost never increases.
+.I gzip
+preserves the mode, ownership and timestamps of files when compressing
+or decompressing.
+
+.SH OPTIONS
+.TP
+.B \-a --ascii
+Ascii text mode: convert end-of-lines using local conventions. This option
+is supported only on some non-Unix systems. For MSDOS, CR LF is converted
+to LF when compressing, and LF is converted to CR LF when decompressing.
+.TP
+.B \-c --stdout --to-stdout
+Write output on standard output; keep original files unchanged.
+If there are several input files, the output consists of a sequence of
+independently compressed members. To obtain better compression,
+concatenate all input files before compressing them.
+.TP
+.B \-d --decompress --uncompress
+Decompress.
+.TP
+.B \-f --force
+Force compression or decompression even if the file has multiple links
+or the corresponding file already exists, or if the compressed data
+is read from or written to a terminal. If the input data is not in
+a format recognized by
+.I gzip,
+and if the option --stdout is also given, copy the input data without change
+to the standard ouput: let
+.I zcat
+behave as
+.I cat.
+If
+.B \-f
+is not given,
+and when not running in the background,
+.I gzip
+prompts to verify whether an existing file should be overwritten.
+.TP
+.B \-h --help
+Display a help screen and quit.
+.TP
+.B \-l --list
+For each compressed file, list the following fields:
+
+ compressed size: size of the compressed file
+ uncompressed size: size of the uncompressed file
+ ratio: compression ratio (0.0% if unknown)
+ uncompressed_name: name of the uncompressed file
+
+The uncompressed size is given as -1 for files not in gzip format,
+such as compressed .Z files. To get the uncompressed size for such a file,
+you can use:
+
+ zcat file.Z | wc -c
+
+In combination with the --verbose option, the following fields are also
+displayed:
+
+ method: compression method
+ crc: the 32-bit CRC of the uncompressed data
+ date & time: time stamp for the uncompressed file
+
+The compression methods currently supported are deflate, compress, lzh
+(SCO compress -H) and pack. The crc is given as ffffffff for a file
+not in gzip format.
+
+With --name, the uncompressed name, date and time are
+those stored within the compress file if present.
+
+With --verbose, the size totals and compression ratio for all files
+is also displayed, unless some sizes are unknown. With --quiet,
+the title and totals lines are not displayed.
+.TP
+.B \-L --license
+Display the
+.I gzip
+license and quit.
+.TP
+.B \-n --no-name
+When compressing, do not save the original file name and time stamp by
+default. (The original name is always saved if the name had to be
+truncated.) When decompressing, do not restore the original file name
+if present (remove only the
+.I gzip
+suffix from the compressed file name) and do not restore the original
+time stamp if present (copy it from the compressed file). This option
+is the default when decompressing.
+.TP
+.B \-N --name
+When compressing, always save the original file name and time stamp; this
+is the default. When decompressing, restore the original file name and
+time stamp if present. This option is useful on systems which have
+a limit on file name length or when the time stamp has been lost after
+a file transfer.
+.TP
+.B \-q --quiet
+Suppress all warnings.
+.TP
+.B \-r --recursive
+Travel the directory structure recursively. If any of the file names
+specified on the command line are directories,
+.I gzip
+will descend into the directory and compress all the files it finds there
+(or decompress them in the case of
+.I gunzip
+).
+.TP
+.B \-S .suf --suffix .suf
+Use suffix .suf instead of .gz. Any suffix can be given, but suffixes
+other than .z and .gz should be avoided to avoid confusion when files
+are transferred to other systems. A null suffix forces gunzip to try
+decompression on all given files regardless of suffix, as in:
+
+ gunzip -S "" * (*.* for MSDOS)
+
+Previous versions of gzip used
+the .z suffix. This was changed to avoid a conflict with
+.IR pack "(1)".
+.TP
+.B \-t --test
+Test. Check the compressed file integrity.
+.TP
+.B \-v --verbose
+Verbose. Display the name and percentage reduction for each file compressed
+or decompressed.
+.TP
+.B \-V --version
+Version. Display the version number and compilation options then quit.
+.TP
+.B \-# --fast --best
+Regulate the speed of compression using the specified digit
+.IR # ,
+where
+.B \-1
+or
+.B \-\-fast
+indicates the fastest compression method (less compression)
+and
+.B \-9
+or
+.B \-\-best
+indicates the slowest compression method (best compression).
+The default compression level is
+.BR \-6
+(that is, biased towards high compression at expense of speed).
+.SH "ADVANCED USAGE"
+Multiple compressed files can be concatenated. In this case,
+.I gunzip
+will extract all members at once. For example:
+
+ gzip -c file1 > foo.gz
+ gzip -c file2 >> foo.gz
+
+Then
+
+ gunzip -c foo
+
+is equivalent to
+
+ cat file1 file2
+
+In case of damage to one member of a .gz file, other members can
+still be recovered (if the damaged member is removed). However,
+you can get better compression by compressing all members at once:
+
+ cat file1 file2 | gzip > foo.gz
+
+compresses better than
+
+ gzip -c file1 file2 > foo.gz
+
+If you want to recompress concatenated files to get better compression, do:
+
+ gzip -cd old.gz | gzip > new.gz
+
+If a compressed file consists of several members, the uncompressed
+size and CRC reported by the --list option applies to the last member
+only. If you need the uncompressed size for all members, you can use:
+
+ gzip -cd file.gz | wc -c
+
+If you wish to create a single archive file with multiple members so
+that members can later be extracted independently, use an archiver
+such as tar or zip. GNU tar supports the -z option to invoke gzip
+transparently. gzip is designed as a complement to tar, not as a
+replacement.
+.SH "ENVIRONMENT"
+The environment variable
+.B GZIP
+can hold a set of default options for
+.I gzip.
+These options are interpreted first and can be overwritten by
+explicit command line parameters. For example:
+ for sh: GZIP="-8v --name"; export GZIP
+ for csh: setenv GZIP "-8v --name"
+ for MSDOS: set GZIP=-8v --name
+
+On Vax/VMS, the name of the environment variable is GZIP_OPT, to
+avoid a conflict with the symbol set for invocation of the program.
+.SH "SEE ALSO"
+znew(1), zcmp(1), zmore(1), zforce(1), gzexe(1), zip(1), unzip(1), compress(1),
+pack(1), compact(1)
+.PP
+The
+.I gzip
+file format is specified in P. Deutsch, \s-1GZIP\s0 file format
+specification version 4.3,
+.BR <ftp://ftp.isi.edu/in-notes/rfc1952.txt> ,
+Internet RFC 1952 (May 1996).
+The
+.I zip
+deflation format is specified in P. Deutsch, \s-1DEFLATE\s0 Compressed
+Data Format Specification version 1.3,
+.BR <ftp://ftp.isi.edu/in-notes/rfc1951.txt> ,
+Internet RFC 1951 (May 1996).
+.SH "DIAGNOSTICS"
+Exit status is normally 0;
+if an error occurs, exit status is 1. If a warning occurs, exit status is 2.
+.TP
+Usage: gzip [-cdfhlLnNrtvV19] [-S suffix] [file ...]
+Invalid options were specified on the command line.
+.TP
+\fIfile\fP\^: not in gzip format
+The file specified to
+.I gunzip
+has not been compressed.
+.TP
+\fIfile\fP\^: Corrupt input. Use zcat to recover some data.
+The compressed file has been damaged. The data up to the point of failure
+can be recovered using
+
+ zcat \fIfile\fP > recover
+.TP
+\fIfile\fP\^: compressed with \fIxx\fP bits, can only handle \fIyy\fP bits
+.I File
+was compressed (using LZW) by a program that could deal with
+more
+.I bits
+than the decompress code on this machine.
+Recompress the file with gzip, which compresses better and uses
+less memory.
+.TP
+\fIfile\fP\^: already has .gz suffix -- no change
+The file is assumed to be already compressed.
+Rename the file and try again.
+.TP
+\fIfile\fP already exists; do you wish to overwrite (y or n)?
+Respond "y" if you want the output file to be replaced; "n" if not.
+.TP
+gunzip: corrupt input
+A SIGSEGV violation was detected which usually means that the input file has
+been corrupted.
+.TP
+\fIxx.x%\fP Percentage of the input saved by compression.
+(Relevant only for
+.BR \-v
+and
+.BR \-l \.)
+.TP
+-- not a regular file or directory: ignored
+When the input file is not a regular file or directory,
+(e.g. a symbolic link, socket, FIFO, device file), it is
+left unaltered.
+.TP
+-- has \fIxx\fP other links: unchanged
+The input file has links; it is left unchanged. See
+.IR ln "(1)"
+for more information. Use the
+.B \-f
+flag to force compression of multiply-linked files.
+.SH CAVEATS
+When writing compressed data to a tape, it is generally necessary to
+pad the output with zeroes up to a block boundary. When the data is
+read and the whole block is passed to
+.I gunzip
+for decompression,
+.I gunzip
+detects that there is extra trailing garbage after the compressed data
+and emits a warning by default. You have to use the --quiet option to
+suppress the warning. This option can be set in the
+.B GZIP
+environment variable as in:
+ for sh: GZIP="-q" tar -xfz --block-compress /dev/rst0
+ for csh: (setenv GZIP -q; tar -xfz --block-compr /dev/rst0
+
+In the above example, gzip is invoked implicitly by the -z option of
+GNU tar. Make sure that the same block size (-b option of tar) is used
+for reading and writing compressed data on tapes. (This example
+assumes you are using the GNU version of tar.)
+.SH BUGS
+The gzip format represents the the input size modulo 2^32, so the
+--list option reports incorrect uncompressed sizes and compression
+ratios for uncompressed files 4 GB and larger. To work around this
+problem, you can use the following command to discover a large
+uncompressed file's true size:
+
+ zcat file.gz | wc -c
+
+The --list option reports sizes as -1 and crc as ffffffff if the
+compressed file is on a non seekable media.
+
+In some rare cases, the --best option gives worse compression than
+the default compression level (-6). On some highly redundant files,
+.I compress
+compresses better than
+.I gzip.
+.SH "COPYRIGHT NOTICE"
+Copyright \(co 1998, 1999, 2001 Free Software Foundation, Inc.
+.br
+Copyright \(co 1992, 1993 Jean-loup Gailly
+.PP
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+are preserved on all copies.
+.ig
+Permission is granted to process this file through troff and print the
+results, provided the printed document carries copying permission
+notice identical to this one except for the removal of this paragraph
+(this paragraph not being relevant to the printed manual).
+..
+.PP
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the entire
+resulting derived work is distributed under the terms of a permission
+notice identical to this one.
+.PP
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions,
+except that this permission notice may be stated in a translation approved
+by the Foundation.
--- /dev/null
+/* gzip (GNU zip) -- compress files with zip algorithm and 'compress' interface
+ * Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * The unzip code was written and put in the public domain by Mark Adler.
+ * Portions of the lzw code are derived from the public domain 'compress'
+ * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
+ * Ken Turkowski, Dave Mack and Peter Jannesen.
+ *
+ * See the license_msg below and the file COPYING for the software license.
+ * See the file algorithm.doc for the compression algorithms and file formats.
+ */
+
+static char *license_msg[] = {
+"Copyright 2001 Free Software Foundation",
+"Copyright 1992-1993 Jean-loup Gailly",
+"This program comes with ABSOLUTELY NO WARRANTY.",
+"You may redistribute copies of this program",
+"under the terms of the GNU General Public License.",
+"For more information about these matters, see the file named COPYING.",
+0};
+
+/* Compress files with zip algorithm and 'compress' interface.
+ * See usage() and help() functions below for all options.
+ * Outputs:
+ * file.gz: compressed file with same mode, owner, and utimes
+ * or stdout with -c option or if stdin used as input.
+ * If the output file name had to be truncated, the original name is kept
+ * in the compressed file.
+ * On MSDOS, file.tmp -> file.tmz. On VMS, file.tmp -> file.tmp-gz.
+ *
+ * Using gz on MSDOS would create too many file name conflicts. For
+ * example, foo.txt -> foo.tgz (.tgz must be reserved as shorthand for
+ * tar.gz). Similarly, foo.dir and foo.doc would both be mapped to foo.dgz.
+ * I also considered 12345678.txt -> 12345txt.gz but this truncates the name
+ * too heavily. There is no ideal solution given the MSDOS 8+3 limitation.
+ *
+ * For the meaning of all compilation flags, see comments in Makefile.in.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: gzip.c,v 0.24 1993/06/24 10:52:07 jloup Exp $";
+#endif
+
+#include <config.h>
+#include <ctype.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+#include "tailor.h"
+#include "gzip.h"
+#include "lzw.h"
+#include "revision.h"
+#include "getopt.h"
+
+ /* configuration */
+
+#ifdef HAVE_TIME_H
+# include <time.h>
+#else
+# include <sys/time.h>
+#endif
+
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+#if defined STDC_HEADERS || defined HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+ extern int errno;
+#endif
+
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+# define NAMLEN(direct) strlen((direct)->d_name)
+# define DIR_OPT "DIRENT"
+#else
+# define dirent direct
+# define NAMLEN(direct) ((direct)->d_namlen)
+# ifdef HAVE_SYS_NDIR_H
+# include <sys/ndir.h>
+# define DIR_OPT "SYS_NDIR"
+# endif
+# ifdef HAVE_SYS_DIR_H
+# include <sys/dir.h>
+# define DIR_OPT "SYS_DIR"
+# endif
+# ifdef HAVE_NDIR_H
+# include <ndir.h>
+# define DIR_OPT "NDIR"
+# endif
+# ifndef DIR_OPT
+# define DIR_OPT "NO_DIR"
+# endif
+#endif
+
+#ifdef CLOSEDIR_VOID
+# define CLOSEDIR(d) (closedir(d), 0)
+#else
+# define CLOSEDIR(d) closedir(d)
+#endif
+
+#ifdef HAVE_UTIME
+# ifdef HAVE_UTIME_H
+# include <utime.h>
+# define TIME_OPT "UTIME"
+# else
+# ifdef HAVE_SYS_UTIME_H
+# include <sys/utime.h>
+# define TIME_OPT "SYS_UTIME"
+# else
+ struct utimbuf {
+ time_t actime;
+ time_t modtime;
+ };
+# define TIME_OPT "STRUCT_UTIMBUF"
+# endif
+# endif
+#else
+# define TIME_OPT "NO_UTIME"
+#endif
+
+#if !defined(S_ISDIR) && defined(S_IFDIR)
+# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
+#endif
+#if !defined(S_ISREG) && defined(S_IFREG)
+# define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
+#endif
+
+typedef RETSIGTYPE (*sig_type) OF((int));
+
+#ifndef O_BINARY
+# define O_BINARY 0 /* creation mode for open() */
+#endif
+
+#ifndef O_CREAT
+ /* Pure BSD system? */
+# include <sys/file.h>
+# ifndef O_CREAT
+# define O_CREAT FCREAT
+# endif
+# ifndef O_EXCL
+# define O_EXCL FEXCL
+# endif
+#endif
+
+#ifndef S_IRUSR
+# define S_IRUSR 0400
+#endif
+#ifndef S_IWUSR
+# define S_IWUSR 0200
+#endif
+#define RW_USER (S_IRUSR | S_IWUSR) /* creation mode for open() */
+
+#ifndef MAX_PATH_LEN
+# define MAX_PATH_LEN 1024 /* max pathname length */
+#endif
+
+#ifndef SEEK_END
+# define SEEK_END 2
+#endif
+
+#ifndef CHAR_BIT
+# define CHAR_BIT 8
+#endif
+
+#ifdef off_t
+ off_t lseek OF((int fd, off_t offset, int whence));
+#endif
+
+#ifndef OFF_T_MIN
+#define OFF_T_MIN (~ (off_t) 0 << (sizeof (off_t) * CHAR_BIT - 1))
+#endif
+
+#ifndef OFF_T_MAX
+#define OFF_T_MAX (~ (off_t) 0 - OFF_T_MIN)
+#endif
+
+/* Separator for file name parts (see shorten_name()) */
+#ifdef NO_MULTIPLE_DOTS
+# define PART_SEP "-"
+#else
+# define PART_SEP "."
+#endif
+
+ /* global buffers */
+
+DECLARE(uch, inbuf, INBUFSIZ +INBUF_EXTRA);
+DECLARE(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
+DECLARE(ush, d_buf, DIST_BUFSIZE);
+DECLARE(uch, window, 2L*WSIZE);
+#ifndef MAXSEG_64K
+ DECLARE(ush, tab_prefix, 1L<<BITS);
+#else
+ DECLARE(ush, tab_prefix0, 1L<<(BITS-1));
+ DECLARE(ush, tab_prefix1, 1L<<(BITS-1));
+#endif
+
+ /* local variables */
+
+int ascii = 0; /* convert end-of-lines to local OS conventions */
+int to_stdout = 0; /* output to stdout (-c) */
+int decompress = 0; /* decompress (-d) */
+int force = 0; /* don't ask questions, compress links (-f) */
+int no_name = -1; /* don't save or restore the original file name */
+int no_time = -1; /* don't save or restore the original file time */
+int recursive = 0; /* recurse through directories (-r) */
+int list = 0; /* list the file contents (-l) */
+int verbose = 0; /* be verbose (-v) */
+int quiet = 0; /* be very quiet (-q) */
+int do_lzw = 0; /* generate output compatible with old compress (-Z) */
+int test = 0; /* test .gz file integrity */
+int foreground; /* set if program run in foreground */
+char *progname; /* program name */
+int maxbits = BITS; /* max bits per code for LZW */
+int method = DEFLATED;/* compression method */
+int level = 6; /* compression level */
+int exit_code = OK; /* program exit code */
+int save_orig_name; /* set if original name must be saved */
+int last_member; /* set for .zip and .Z files */
+int part_nb; /* number of parts in .gz file */
+time_t time_stamp; /* original time stamp (modification time) */
+off_t ifile_size; /* input file size, -1 for devices (debug only) */
+char *env; /* contents of GZIP env variable */
+char **args = NULL; /* argv pointer if GZIP env variable defined */
+char *z_suffix; /* default suffix (can be set with --suffix) */
+int z_len; /* strlen(z_suffix) */
+
+off_t bytes_in; /* number of input bytes */
+off_t bytes_out; /* number of output bytes */
+off_t total_in; /* input bytes for all files */
+off_t total_out; /* output bytes for all files */
+char ifname[MAX_PATH_LEN]; /* input file name */
+char ofname[MAX_PATH_LEN]; /* output file name */
+int remove_ofname = 0; /* remove output file on error */
+struct stat istat; /* status for input file */
+int ifd; /* input file descriptor */
+int ofd; /* output file descriptor */
+unsigned insize; /* valid bytes in inbuf */
+unsigned inptr; /* index of next byte to be processed in inbuf */
+unsigned outcnt; /* bytes in output buffer */
+
+struct option longopts[] =
+{
+ /* { name has_arg *flag val } */
+ {"ascii", 0, 0, 'a'}, /* ascii text mode */
+ {"to-stdout", 0, 0, 'c'}, /* write output on standard output */
+ {"stdout", 0, 0, 'c'}, /* write output on standard output */
+ {"decompress", 0, 0, 'd'}, /* decompress */
+ {"uncompress", 0, 0, 'd'}, /* decompress */
+ /* {"encrypt", 0, 0, 'e'}, encrypt */
+ {"force", 0, 0, 'f'}, /* force overwrite of output file */
+ {"help", 0, 0, 'h'}, /* give help */
+ /* {"pkzip", 0, 0, 'k'}, force output in pkzip format */
+ {"list", 0, 0, 'l'}, /* list .gz file contents */
+ {"license", 0, 0, 'L'}, /* display software license */
+ {"no-name", 0, 0, 'n'}, /* don't save or restore original name & time */
+ {"name", 0, 0, 'N'}, /* save or restore original name & time */
+ {"quiet", 0, 0, 'q'}, /* quiet mode */
+ {"silent", 0, 0, 'q'}, /* quiet mode */
+ {"recursive", 0, 0, 'r'}, /* recurse through directories */
+ {"suffix", 1, 0, 'S'}, /* use given suffix instead of .gz */
+ {"test", 0, 0, 't'}, /* test compressed file integrity */
+ {"no-time", 0, 0, 'T'}, /* don't save or restore the time stamp */
+ {"verbose", 0, 0, 'v'}, /* verbose mode */
+ {"version", 0, 0, 'V'}, /* display version number */
+ {"fast", 0, 0, '1'}, /* compress faster */
+ {"best", 0, 0, '9'}, /* compress better */
+ {"lzw", 0, 0, 'Z'}, /* make output compatible with old compress */
+ {"bits", 1, 0, 'b'}, /* max number of bits per code (implies -Z) */
+ { 0, 0, 0, 0 }
+};
+
+/* local functions */
+
+local void usage OF((void));
+local void help OF((void));
+local void license OF((void));
+local void version OF((void));
+local int input_eof OF((void));
+local void treat_stdin OF((void));
+local void treat_file OF((char *iname));
+local int create_outfile OF((void));
+local int do_stat OF((char *name, struct stat *sbuf));
+local char *get_suffix OF((char *name));
+local int get_istat OF((char *iname, struct stat *sbuf));
+local int make_ofname OF((void));
+local int same_file OF((struct stat *stat1, struct stat *stat2));
+local int name_too_long OF((char *name, struct stat *statb));
+local void shorten_name OF((char *name));
+local int get_method OF((int in));
+local void do_list OF((int ifd, int method));
+local int check_ofname OF((void));
+local void copy_stat OF((struct stat *ifstat));
+local void do_exit OF((int exitcode));
+ int main OF((int argc, char **argv));
+int (*work) OF((int infile, int outfile)) = zip; /* function to call */
+
+#ifndef NO_DIR
+local void treat_dir OF((char *dir));
+#endif
+#ifdef HAVE_UTIME
+local void reset_times OF((char *name, struct stat *statb));
+#endif
+
+#define strequ(s1, s2) (strcmp((s1),(s2)) == 0)
+
+/* ======================================================================== */
+local void usage()
+{
+ printf ("usage: %s [-%scdfhlLnN%stvV19] [-S suffix] [file ...]\n",
+ progname,
+#if O_BINARY
+ "a",
+#else
+ "",
+#endif
+#ifdef NO_DIR
+ ""
+#else
+ "r"
+#endif
+ );
+}
+
+/* ======================================================================== */
+local void help()
+{
+ static char *help_msg[] = {
+#if O_BINARY
+ " -a --ascii ascii text; convert end-of-lines using local conventions",
+#endif
+ " -c --stdout write on standard output, keep original files unchanged",
+ " -d --decompress decompress",
+/* -e --encrypt encrypt */
+ " -f --force force overwrite of output file and compress links",
+ " -h --help give this help",
+/* -k --pkzip force output in pkzip format */
+ " -l --list list compressed file contents",
+ " -L --license display software license",
+#ifdef UNDOCUMENTED
+ " -m --no-time do not save or restore the original modification time",
+ " -M --time save or restore the original modification time",
+#endif
+ " -n --no-name do not save or restore the original name and time stamp",
+ " -N --name save or restore the original name and time stamp",
+ " -q --quiet suppress all warnings",
+#ifndef NO_DIR
+ " -r --recursive operate recursively on directories",
+#endif
+ " -S .suf --suffix .suf use suffix .suf on compressed files",
+ " -t --test test compressed file integrity",
+ " -v --verbose verbose mode",
+ " -V --version display version number",
+ " -1 --fast compress faster",
+ " -9 --best compress better",
+#ifdef LZW
+ " -Z --lzw produce output compatible with old compress",
+ " -b --bits maxbits max number of bits per code (implies -Z)",
+#endif
+ " file... files to (de)compress. If none given, use standard input.",
+ "Report bugs to <bug-gzip@gnu.org>.",
+ 0};
+ char **p = help_msg;
+
+ printf ("%s %s\n(%s)\n", progname, VERSION, REVDATE);
+ usage();
+ while (*p) printf ("%s\n", *p++);
+}
+
+/* ======================================================================== */
+local void license()
+{
+ char **p = license_msg;
+
+ printf ("%s %s\n(%s)\n", progname, VERSION, REVDATE);
+ while (*p) printf ("%s\n", *p++);
+}
+
+/* ======================================================================== */
+local void version()
+{
+ license ();
+ printf ("Compilation options:\n%s %s ", DIR_OPT, TIME_OPT);
+#ifdef STDC_HEADERS
+ printf ("STDC_HEADERS ");
+#endif
+#ifdef HAVE_UNISTD_H
+ printf ("HAVE_UNISTD_H ");
+#endif
+#ifdef HAVE_MEMORY_H
+ printf ("HAVE_MEMORY_H ");
+#endif
+#ifdef HAVE_STRING_H
+ printf ("HAVE_STRING_H ");
+#endif
+#ifdef HAVE_LSTAT
+ printf ("HAVE_LSTAT ");
+#endif
+#ifdef NO_MULTIPLE_DOTS
+ printf ("NO_MULTIPLE_DOTS ");
+#endif
+#ifdef HAVE_CHOWN
+ printf ("HAVE_CHOWN ");
+#endif
+#ifdef PROTO
+ printf ("PROTO ");
+#endif
+#ifdef ASMV
+ printf ("ASMV ");
+#endif
+#ifdef DEBUG
+ printf ("DEBUG ");
+#endif
+#ifdef DYN_ALLOC
+ printf ("DYN_ALLOC ");
+#endif
+#ifdef MAXSEG_64K
+ printf ("MAXSEG_64K");
+#endif
+ printf ("\n");
+ printf ("Written by Jean-loup Gailly.\n");
+}
+
+local void progerror (string)
+ char *string;
+{
+ int e = errno;
+ fprintf(stderr, "%s: ", progname);
+ errno = e;
+ perror(string);
+ exit_code = ERROR;
+}
+
+/* ======================================================================== */
+int main (argc, argv)
+ int argc;
+ char **argv;
+{
+ int file_count; /* number of files to precess */
+ int proglen; /* length of progname */
+ int optc; /* current option */
+
+ EXPAND(argc, argv); /* wild card expansion if necessary */
+
+ progname = base_name (argv[0]);
+ proglen = strlen(progname);
+
+ /* Suppress .exe for MSDOS, OS/2 and VMS: */
+ if (proglen > 4 && strequ(progname+proglen-4, ".exe")) {
+ progname[proglen-4] = '\0';
+ }
+
+ /* Add options in GZIP environment variable if there is one */
+ env = add_envopt(&argc, &argv, OPTIONS_VAR);
+ if (env != NULL) args = argv;
+
+ foreground = signal(SIGINT, SIG_IGN) != SIG_IGN;
+ if (foreground) {
+ (void) signal (SIGINT, (sig_type)abort_gzip);
+ }
+#ifdef SIGTERM
+ if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
+ (void) signal(SIGTERM, (sig_type)abort_gzip);
+ }
+#endif
+#ifdef SIGHUP
+ if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
+ (void) signal(SIGHUP, (sig_type)abort_gzip);
+ }
+#endif
+
+#ifndef GNU_STANDARD
+ /* For compatibility with old compress, use program name as an option.
+ * If you compile with -DGNU_STANDARD, this program will behave as
+ * gzip even if it is invoked under the name gunzip or zcat.
+ *
+ * Systems which do not support links can still use -d or -dc.
+ * Ignore an .exe extension for MSDOS, OS/2 and VMS.
+ */
+ if ( strncmp(progname, "un", 2) == 0 /* ungzip, uncompress */
+ || strncmp(progname, "gun", 3) == 0) { /* gunzip */
+ decompress = 1;
+ } else if (strequ(progname+1, "cat") /* zcat, pcat, gcat */
+ || strequ(progname, "gzcat")) { /* gzcat */
+ decompress = to_stdout = 1;
+ }
+#endif
+
+ z_suffix = Z_SUFFIX;
+ z_len = strlen(z_suffix);
+
+ while ((optc = getopt_long (argc, argv, "ab:cdfhH?lLmMnNqrS:tvVZ123456789",
+ longopts, (int *)0)) != -1) {
+ switch (optc) {
+ case 'a':
+ ascii = 1; break;
+ case 'b':
+ maxbits = atoi(optarg);
+ for (; *optarg; optarg++)
+ if (! ('0' <= *optarg && *optarg <= '9'))
+ {
+ fprintf (stderr, "%s: -b operand is not an integer\n",
+ progname);
+ usage ();
+ do_exit (ERROR);
+ }
+ break;
+ case 'c':
+ to_stdout = 1; break;
+ case 'd':
+ decompress = 1; break;
+ case 'f':
+ force++; break;
+ case 'h': case 'H': case '?':
+ help(); do_exit(OK); break;
+ case 'l':
+ list = decompress = to_stdout = 1; break;
+ case 'L':
+ license(); do_exit(OK); break;
+ case 'm': /* undocumented, may change later */
+ no_time = 1; break;
+ case 'M': /* undocumented, may change later */
+ no_time = 0; break;
+ case 'n':
+ no_name = no_time = 1; break;
+ case 'N':
+ no_name = no_time = 0; break;
+ case 'q':
+ quiet = 1; verbose = 0; break;
+ case 'r':
+#ifdef NO_DIR
+ fprintf(stderr, "%s: -r not supported on this system\n", progname);
+ usage();
+ do_exit(ERROR); break;
+#else
+ recursive = 1; break;
+#endif
+ case 'S':
+#ifdef NO_MULTIPLE_DOTS
+ if (*optarg == '.') optarg++;
+#endif
+ z_len = strlen(optarg);
+ z_suffix = optarg;
+ break;
+ case 't':
+ test = decompress = to_stdout = 1;
+ break;
+ case 'v':
+ verbose++; quiet = 0; break;
+ case 'V':
+ version(); do_exit(OK); break;
+ case 'Z':
+#ifdef LZW
+ do_lzw = 1; break;
+#else
+ fprintf(stderr, "%s: -Z not supported in this version\n",
+ progname);
+ usage();
+ do_exit(ERROR); break;
+#endif
+ case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ level = optc - '0';
+ break;
+ default:
+ /* Error message already emitted by getopt_long. */
+ usage();
+ do_exit(ERROR);
+ }
+ } /* loop on all arguments */
+
+#ifdef SIGPIPE
+ /* Ignore "Broken Pipe" message with --quiet */
+ if (quiet && signal (SIGPIPE, SIG_IGN) != SIG_IGN)
+ signal (SIGPIPE, (sig_type) abort_gzip);
+#endif
+
+ /* By default, save name and timestamp on compression but do not
+ * restore them on decompression.
+ */
+ if (no_time < 0) no_time = decompress;
+ if (no_name < 0) no_name = decompress;
+
+ file_count = argc - optind;
+
+#if O_BINARY
+#else
+ if (ascii && !quiet) {
+ fprintf(stderr, "%s: option --ascii ignored on this system\n",
+ progname);
+ }
+#endif
+ if ((z_len == 0 && !decompress) || z_len > MAX_SUFFIX) {
+ fprintf(stderr, "%s: incorrect suffix '%s'\n",
+ progname, optarg);
+ do_exit(ERROR);
+ }
+ if (do_lzw && !decompress) work = lzw;
+
+ /* Allocate all global buffers (for DYN_ALLOC option) */
+ ALLOC(uch, inbuf, INBUFSIZ +INBUF_EXTRA);
+ ALLOC(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
+ ALLOC(ush, d_buf, DIST_BUFSIZE);
+ ALLOC(uch, window, 2L*WSIZE);
+#ifndef MAXSEG_64K
+ ALLOC(ush, tab_prefix, 1L<<BITS);
+#else
+ ALLOC(ush, tab_prefix0, 1L<<(BITS-1));
+ ALLOC(ush, tab_prefix1, 1L<<(BITS-1));
+#endif
+
+ /* And get to work */
+ if (file_count != 0) {
+ if (to_stdout && !test && !list && (!decompress || !ascii)) {
+ SET_BINARY_MODE(fileno(stdout));
+ }
+ while (optind < argc) {
+ treat_file(argv[optind++]);
+ }
+ } else { /* Standard input */
+ treat_stdin();
+ }
+ if (list && !quiet && file_count > 1) {
+ do_list(-1, -1); /* print totals */
+ }
+ do_exit(exit_code);
+ return exit_code; /* just to avoid lint warning */
+}
+
+/* Return nonzero when at end of file on input. */
+local int
+input_eof ()
+{
+ if (!decompress || last_member)
+ return 1;
+
+ if (inptr == insize)
+ {
+ if (insize != INBUFSIZ || fill_inbuf (1) == EOF)
+ return 1;
+
+ /* Unget the char that fill_inbuf got. */
+ inptr = 0;
+ }
+
+ return 0;
+}
+
+/* ========================================================================
+ * Compress or decompress stdin
+ */
+local void treat_stdin()
+{
+ if (!force && !list &&
+ isatty(fileno((FILE *)(decompress ? stdin : stdout)))) {
+ /* Do not send compressed data to the terminal or read it from
+ * the terminal. We get here when user invoked the program
+ * without parameters, so be helpful. According to the GNU standards:
+ *
+ * If there is one behavior you think is most useful when the output
+ * is to a terminal, and another that you think is most useful when
+ * the output is a file or a pipe, then it is usually best to make
+ * the default behavior the one that is useful with output to a
+ * terminal, and have an option for the other behavior.
+ *
+ * Here we use the --force option to get the other behavior.
+ */
+ fprintf(stderr,
+ "%s: compressed data not %s a terminal. Use -f to force %scompression.\n",
+ progname, decompress ? "read from" : "written to",
+ decompress ? "de" : "");
+ fprintf(stderr,"For help, type: %s -h\n", progname);
+ do_exit(ERROR);
+ }
+
+ if (decompress || !ascii) {
+ SET_BINARY_MODE(fileno(stdin));
+ }
+ if (!test && !list && (!decompress || !ascii)) {
+ SET_BINARY_MODE(fileno(stdout));
+ }
+ strcpy(ifname, "stdin");
+ strcpy(ofname, "stdout");
+
+ /* Get the time stamp on the input file. */
+ time_stamp = 0; /* time unknown by default */
+
+#ifndef NO_STDIN_FSTAT
+ if (list || !no_time) {
+ if (fstat(fileno(stdin), &istat) != 0) {
+ progerror("standard input");
+ do_exit(ERROR);
+ }
+# ifdef NO_PIPE_TIMESTAMP
+ if (S_ISREG(istat.st_mode))
+# endif
+ time_stamp = istat.st_mtime;
+#endif /* NO_STDIN_FSTAT */
+ }
+ ifile_size = -1L; /* convention for unknown size */
+
+ clear_bufs(); /* clear input and output buffers */
+ to_stdout = 1;
+ part_nb = 0;
+
+ if (decompress) {
+ method = get_method(ifd);
+ if (method < 0) {
+ do_exit(exit_code); /* error message already emitted */
+ }
+ }
+ if (list) {
+ do_list(ifd, method);
+ return;
+ }
+
+ /* Actually do the compression/decompression. Loop over zipped members.
+ */
+ for (;;) {
+ if ((*work)(fileno(stdin), fileno(stdout)) != OK) return;
+
+ if (input_eof ())
+ break;
+
+ method = get_method(ifd);
+ if (method < 0) return; /* error message already emitted */
+ bytes_out = 0; /* required for length check */
+ }
+
+ if (verbose) {
+ if (test) {
+ fprintf(stderr, " OK\n");
+
+ } else if (!decompress) {
+ display_ratio(bytes_in-(bytes_out-header_bytes), bytes_in, stderr);
+ fprintf(stderr, "\n");
+#ifdef DISPLAY_STDIN_RATIO
+ } else {
+ display_ratio(bytes_out-(bytes_in-header_bytes), bytes_out,stderr);
+ fprintf(stderr, "\n");
+#endif
+ }
+ }
+}
+
+/* ========================================================================
+ * Compress or decompress the given file
+ */
+local void treat_file(iname)
+ char *iname;
+{
+ /* Accept "-" as synonym for stdin */
+ if (strequ(iname, "-")) {
+ int cflag = to_stdout;
+ treat_stdin();
+ to_stdout = cflag;
+ return;
+ }
+
+ /* Check if the input file is present, set ifname and istat: */
+ if (get_istat(iname, &istat) != OK) return;
+
+ /* If the input name is that of a directory, recurse or ignore: */
+ if (S_ISDIR(istat.st_mode)) {
+#ifndef NO_DIR
+ if (recursive) {
+ struct stat st;
+ st = istat;
+ treat_dir(iname);
+ /* Warning: ifname is now garbage */
+# ifndef NO_UTIME
+ reset_times (iname, &st);
+# endif
+ } else
+#endif
+ WARN((stderr,"%s: %s is a directory -- ignored\n", progname, ifname));
+ return;
+ }
+ if (!S_ISREG(istat.st_mode)) {
+ WARN((stderr,
+ "%s: %s is not a directory or a regular file - ignored\n",
+ progname, ifname));
+ return;
+ }
+ if (istat.st_nlink > 1 && !to_stdout && !force) {
+ WARN((stderr, "%s: %s has %lu other link%c -- unchanged\n",
+ progname, ifname, (unsigned long) istat.st_nlink - 1,
+ istat.st_nlink > 2 ? 's' : ' '));
+ return;
+ }
+
+ ifile_size = istat.st_size;
+ time_stamp = no_time && !list ? 0 : istat.st_mtime;
+
+ /* Generate output file name. For -r and (-t or -l), skip files
+ * without a valid gzip suffix (check done in make_ofname).
+ */
+ if (to_stdout && !list && !test) {
+ strcpy(ofname, "stdout");
+
+ } else if (make_ofname() != OK) {
+ return;
+ }
+
+ /* Open the input file and determine compression method. The mode
+ * parameter is ignored but required by some systems (VMS) and forbidden
+ * on other systems (MacOS).
+ */
+ ifd = OPEN(ifname, ascii && !decompress ? O_RDONLY : O_RDONLY | O_BINARY,
+ RW_USER);
+ if (ifd == -1) {
+ progerror(ifname);
+ return;
+ }
+ clear_bufs(); /* clear input and output buffers */
+ part_nb = 0;
+
+ if (decompress) {
+ method = get_method(ifd); /* updates ofname if original given */
+ if (method < 0) {
+ close(ifd);
+ return; /* error message already emitted */
+ }
+ }
+ if (list) {
+ do_list(ifd, method);
+ close(ifd);
+ return;
+ }
+
+ /* If compressing to a file, check if ofname is not ambiguous
+ * because the operating system truncates names. Otherwise, generate
+ * a new ofname and save the original name in the compressed file.
+ */
+ if (to_stdout) {
+ ofd = fileno(stdout);
+ /* keep remove_ofname as zero */
+ } else {
+ if (create_outfile() != OK) return;
+
+ if (!decompress && save_orig_name && !verbose && !quiet) {
+ fprintf(stderr, "%s: %s compressed to %s\n",
+ progname, ifname, ofname);
+ }
+ }
+ /* Keep the name even if not truncated except with --no-name: */
+ if (!save_orig_name) save_orig_name = !no_name;
+
+ if (verbose) {
+ fprintf(stderr, "%s:\t", ifname);
+ }
+
+ /* Actually do the compression/decompression. Loop over zipped members.
+ */
+ for (;;) {
+ if ((*work)(ifd, ofd) != OK) {
+ method = -1; /* force cleanup */
+ break;
+ }
+
+ if (input_eof ())
+ break;
+
+ method = get_method(ifd);
+ if (method < 0) break; /* error message already emitted */
+ bytes_out = 0; /* required for length check */
+ }
+
+ close(ifd);
+ if (!to_stdout && close(ofd)) {
+ write_error();
+ }
+ if (method == -1) {
+ if (!to_stdout) xunlink (ofname);
+ return;
+ }
+ /* Display statistics */
+ if(verbose) {
+ if (test) {
+ fprintf(stderr, " OK");
+ } else if (decompress) {
+ display_ratio(bytes_out-(bytes_in-header_bytes), bytes_out,stderr);
+ } else {
+ display_ratio(bytes_in-(bytes_out-header_bytes), bytes_in, stderr);
+ }
+ if (!test && !to_stdout) {
+ fprintf(stderr, " -- replaced with %s", ofname);
+ }
+ fprintf(stderr, "\n");
+ }
+ /* Copy modes, times, ownership, and remove the input file */
+ if (!to_stdout) {
+ copy_stat(&istat);
+ }
+}
+
+/* ========================================================================
+ * Create the output file. Return OK or ERROR.
+ * Try several times if necessary to avoid truncating the z_suffix. For
+ * example, do not create a compressed file of name "1234567890123."
+ * Sets save_orig_name to true if the file name has been truncated.
+ * IN assertions: the input file has already been open (ifd is set) and
+ * ofname has already been updated if there was an original name.
+ * OUT assertions: ifd and ofd are closed in case of error.
+ */
+local int create_outfile()
+{
+ struct stat ostat; /* stat for ofname */
+ int flags = O_WRONLY | O_CREAT | O_EXCL | O_BINARY;
+
+ if (ascii && decompress) {
+ flags &= ~O_BINARY; /* force ascii text mode */
+ }
+ for (;;) {
+ /* Make sure that ofname is not an existing file */
+ if (check_ofname() != OK) {
+ close(ifd);
+ return ERROR;
+ }
+ /* Create the output file */
+ remove_ofname = 1;
+ ofd = OPEN(ofname, flags, RW_USER);
+ if (ofd == -1) {
+ progerror(ofname);
+ close(ifd);
+ return ERROR;
+ }
+
+ /* Check for name truncation on new file (1234567890123.gz) */
+#ifdef NO_FSTAT
+ if (stat(ofname, &ostat) != 0) {
+#else
+ if (fstat(ofd, &ostat) != 0) {
+#endif
+ progerror(ofname);
+ close(ifd); close(ofd);
+ xunlink (ofname);
+ return ERROR;
+ }
+ if (!name_too_long(ofname, &ostat)) return OK;
+
+ if (decompress) {
+ /* name might be too long if an original name was saved */
+ WARN((stderr, "%s: %s: warning, name truncated\n",
+ progname, ofname));
+ return OK;
+ }
+ close(ofd);
+ xunlink (ofname);
+#ifdef NO_MULTIPLE_DOTS
+ /* Should never happen, see check_ofname() */
+ fprintf(stderr, "%s: %s: name too long\n", progname, ofname);
+ do_exit(ERROR);
+#endif
+ shorten_name(ofname);
+ }
+}
+
+/* ========================================================================
+ * Use lstat if available, except for -c or -f. Use stat otherwise.
+ * This allows links when not removing the original file.
+ */
+local int do_stat(name, sbuf)
+ char *name;
+ struct stat *sbuf;
+{
+ errno = 0;
+#ifdef HAVE_LSTAT
+ if (!to_stdout && !force) {
+ return lstat(name, sbuf);
+ }
+#endif
+ return stat(name, sbuf);
+}
+
+/* ========================================================================
+ * Return a pointer to the 'z' suffix of a file name, or NULL. For all
+ * systems, ".gz", ".z", ".Z", ".taz", ".tgz", "-gz", "-z" and "_z" are
+ * accepted suffixes, in addition to the value of the --suffix option.
+ * ".tgz" is a useful convention for tar.z files on systems limited
+ * to 3 characters extensions. On such systems, ".?z" and ".??z" are
+ * also accepted suffixes. For Unix, we do not want to accept any
+ * .??z suffix as indicating a compressed file; some people use .xyz
+ * to denote volume data.
+ * On systems allowing multiple versions of the same file (such as VMS),
+ * this function removes any version suffix in the given name.
+ */
+local char *get_suffix(name)
+ char *name;
+{
+ int nlen, slen;
+ char suffix[MAX_SUFFIX+3]; /* last chars of name, forced to lower case */
+ static char *known_suffixes[] =
+ {NULL, ".gz", ".z", ".taz", ".tgz", "-gz", "-z", "_z",
+#ifdef MAX_EXT_CHARS
+ "z",
+#endif
+ NULL};
+ char **suf = known_suffixes;
+
+ *suf = z_suffix;
+ if (strequ(z_suffix, "z")) suf++; /* check long suffixes first */
+
+#ifdef SUFFIX_SEP
+ /* strip a version number from the file name */
+ {
+ char *v = strrchr(name, SUFFIX_SEP);
+ if (v != NULL) *v = '\0';
+ }
+#endif
+ nlen = strlen(name);
+ if (nlen <= MAX_SUFFIX+2) {
+ strcpy(suffix, name);
+ } else {
+ strcpy(suffix, name+nlen-MAX_SUFFIX-2);
+ }
+ strlwr(suffix);
+ slen = strlen(suffix);
+ do {
+ int s = strlen(*suf);
+ if (slen > s && suffix[slen-s-1] != PATH_SEP
+ && strequ(suffix + slen - s, *suf)) {
+ return name+nlen-s;
+ }
+ } while (*++suf != NULL);
+
+ return NULL;
+}
+
+
+/* ========================================================================
+ * Set ifname to the input file name (with a suffix appended if necessary)
+ * and istat to its stats. For decompression, if no file exists with the
+ * original name, try adding successively z_suffix, .gz, .z, -z and .Z.
+ * For MSDOS, we try only z_suffix and z.
+ * Return OK or ERROR.
+ */
+local int get_istat(iname, sbuf)
+ char *iname;
+ struct stat *sbuf;
+{
+ int ilen; /* strlen(ifname) */
+ int z_suffix_errno = 0;
+ static char *suffixes[] = {NULL, ".gz", ".z", "-z", ".Z", NULL};
+ char **suf = suffixes;
+ char *s;
+#ifdef NO_MULTIPLE_DOTS
+ char *dot; /* pointer to ifname extension, or NULL */
+#endif
+
+ *suf = z_suffix;
+
+ if (sizeof ifname - 1 <= strlen (iname))
+ goto name_too_long;
+
+ strcpy(ifname, iname);
+
+ /* If input file exists, return OK. */
+ if (do_stat(ifname, sbuf) == 0) return OK;
+
+ if (!decompress || errno != ENOENT) {
+ progerror(ifname);
+ return ERROR;
+ }
+ /* file.ext doesn't exist, try adding a suffix (after removing any
+ * version number for VMS).
+ */
+ s = get_suffix(ifname);
+ if (s != NULL) {
+ progerror(ifname); /* ifname already has z suffix and does not exist */
+ return ERROR;
+ }
+#ifdef NO_MULTIPLE_DOTS
+ dot = strrchr(ifname, '.');
+ if (dot == NULL) {
+ strcat(ifname, ".");
+ dot = strrchr(ifname, '.');
+ }
+#endif
+ ilen = strlen(ifname);
+ if (strequ(z_suffix, ".gz")) suf++;
+
+ /* Search for all suffixes */
+ do {
+ char *s0 = s = *suf;
+ strcpy (ifname, iname);
+#ifdef NO_MULTIPLE_DOTS
+ if (*s == '.') s++;
+ if (*dot == '\0') strcpy (dot, ".");
+#endif
+#ifdef MAX_EXT_CHARS
+ if (MAX_EXT_CHARS < strlen (s) + strlen (dot + 1))
+ dot[MAX_EXT_CHARS + 1 - strlen (s)] = '\0';
+#endif
+ if (sizeof ifname <= ilen + strlen (s))
+ goto name_too_long;
+ strcat(ifname, s);
+ if (do_stat(ifname, sbuf) == 0) return OK;
+ if (strequ (s0, z_suffix))
+ z_suffix_errno = errno;
+ } while (*++suf != NULL);
+
+ /* No suffix found, complain using z_suffix: */
+ strcpy(ifname, iname);
+#ifdef NO_MULTIPLE_DOTS
+ if (*dot == '\0') strcpy(dot, ".");
+#endif
+#ifdef MAX_EXT_CHARS
+ if (MAX_EXT_CHARS < z_len + strlen (dot + 1))
+ dot[MAX_EXT_CHARS + 1 - z_len] = '\0';
+#endif
+ strcat(ifname, z_suffix);
+ errno = z_suffix_errno;
+ progerror(ifname);
+ return ERROR;
+
+ name_too_long:
+ fprintf (stderr, "%s: %s: file name too long\n", progname, iname);
+ exit_code = ERROR;
+ return ERROR;
+}
+
+/* ========================================================================
+ * Generate ofname given ifname. Return OK, or WARNING if file must be skipped.
+ * Sets save_orig_name to true if the file name has been truncated.
+ */
+local int make_ofname()
+{
+ char *suff; /* ofname z suffix */
+
+ strcpy(ofname, ifname);
+ /* strip a version number if any and get the gzip suffix if present: */
+ suff = get_suffix(ofname);
+
+ if (decompress) {
+ if (suff == NULL) {
+ /* With -t or -l, try all files (even without .gz suffix)
+ * except with -r (behave as with just -dr).
+ */
+ if (!recursive && (list || test)) return OK;
+
+ /* Avoid annoying messages with -r */
+ if (verbose || (!recursive && !quiet)) {
+ WARN((stderr,"%s: %s: unknown suffix -- ignored\n",
+ progname, ifname));
+ }
+ return WARNING;
+ }
+ /* Make a special case for .tgz and .taz: */
+ strlwr(suff);
+ if (strequ(suff, ".tgz") || strequ(suff, ".taz")) {
+ strcpy(suff, ".tar");
+ } else {
+ *suff = '\0'; /* strip the z suffix */
+ }
+ /* ofname might be changed later if infile contains an original name */
+
+ } else if (suff != NULL) {
+ /* Avoid annoying messages with -r (see treat_dir()) */
+ if (verbose || (!recursive && !quiet)) {
+ WARN((stderr, "%s: %s already has %s suffix -- unchanged\n",
+ progname, ifname, suff));
+ }
+ return WARNING;
+ } else {
+ save_orig_name = 0;
+
+#ifdef NO_MULTIPLE_DOTS
+ suff = strrchr(ofname, '.');
+ if (suff == NULL) {
+ if (sizeof ofname <= strlen (ofname) + 1)
+ goto name_too_long;
+ strcat(ofname, ".");
+# ifdef MAX_EXT_CHARS
+ if (strequ(z_suffix, "z")) {
+ if (sizeof ofname <= strlen (ofname) + 2)
+ goto name_too_long;
+ strcat(ofname, "gz"); /* enough room */
+ return OK;
+ }
+ /* On the Atari and some versions of MSDOS, name_too_long()
+ * does not work correctly because of a bug in stat(). So we
+ * must truncate here.
+ */
+ } else if (strlen(suff)-1 + z_len > MAX_SUFFIX) {
+ suff[MAX_SUFFIX+1-z_len] = '\0';
+ save_orig_name = 1;
+# endif
+ }
+#endif /* NO_MULTIPLE_DOTS */
+ if (sizeof ofname <= strlen (ofname) + z_len)
+ goto name_too_long;
+ strcat(ofname, z_suffix);
+
+ } /* decompress ? */
+ return OK;
+
+ name_too_long:
+ WARN ((stderr, "%s: %s: file name too long\n", progname, ifname));
+ return WARNING;
+}
+
+
+/* ========================================================================
+ * Check the magic number of the input file and update ofname if an
+ * original name was given and to_stdout is not set.
+ * Return the compression method, -1 for error, -2 for warning.
+ * Set inptr to the offset of the next byte to be processed.
+ * Updates time_stamp if there is one and --no-time is not used.
+ * This function may be called repeatedly for an input file consisting
+ * of several contiguous gzip'ed members.
+ * IN assertions: there is at least one remaining compressed member.
+ * If the member is a zip file, it must be the only one.
+ */
+local int get_method(in)
+ int in; /* input file descriptor */
+{
+ uch flags; /* compression flags */
+ char magic[2]; /* magic header */
+ int imagic1; /* like magic[1], but can represent EOF */
+ ulg stamp; /* time stamp */
+
+ /* If --force and --stdout, zcat == cat, so do not complain about
+ * premature end of file: use try_byte instead of get_byte.
+ */
+ if (force && to_stdout) {
+ magic[0] = (char)try_byte();
+ imagic1 = try_byte ();
+ magic[1] = (char) imagic1;
+ /* If try_byte returned EOF, magic[1] == (char) EOF. */
+ } else {
+ magic[0] = (char)get_byte();
+ magic[1] = (char)get_byte();
+ imagic1 = 0; /* avoid lint warning */
+ }
+ method = -1; /* unknown yet */
+ part_nb++; /* number of parts in gzip file */
+ header_bytes = 0;
+ last_member = RECORD_IO;
+ /* assume multiple members in gzip file except for record oriented I/O */
+
+ if (memcmp(magic, GZIP_MAGIC, 2) == 0
+ || memcmp(magic, OLD_GZIP_MAGIC, 2) == 0) {
+
+ method = (int)get_byte();
+ if (method != DEFLATED) {
+ fprintf(stderr,
+ "%s: %s: unknown method %d -- not supported\n",
+ progname, ifname, method);
+ exit_code = ERROR;
+ return -1;
+ }
+ work = unzip;
+ flags = (uch)get_byte();
+
+ if ((flags & ENCRYPTED) != 0) {
+ fprintf(stderr,
+ "%s: %s is encrypted -- not supported\n",
+ progname, ifname);
+ exit_code = ERROR;
+ return -1;
+ }
+ if ((flags & CONTINUATION) != 0) {
+ fprintf(stderr,
+ "%s: %s is a a multi-part gzip file -- not supported\n",
+ progname, ifname);
+ exit_code = ERROR;
+ if (force <= 1) return -1;
+ }
+ if ((flags & RESERVED) != 0) {
+ fprintf(stderr,
+ "%s: %s has flags 0x%x -- not supported\n",
+ progname, ifname, flags);
+ exit_code = ERROR;
+ if (force <= 1) return -1;
+ }
+ stamp = (ulg)get_byte();
+ stamp |= ((ulg)get_byte()) << 8;
+ stamp |= ((ulg)get_byte()) << 16;
+ stamp |= ((ulg)get_byte()) << 24;
+ if (stamp != 0 && !no_time) time_stamp = stamp;
+
+ (void)get_byte(); /* Ignore extra flags for the moment */
+ (void)get_byte(); /* Ignore OS type for the moment */
+
+ if ((flags & CONTINUATION) != 0) {
+ unsigned part = (unsigned)get_byte();
+ part |= ((unsigned)get_byte())<<8;
+ if (verbose) {
+ fprintf(stderr,"%s: %s: part number %u\n",
+ progname, ifname, part);
+ }
+ }
+ if ((flags & EXTRA_FIELD) != 0) {
+ unsigned len = (unsigned)get_byte();
+ len |= ((unsigned)get_byte())<<8;
+ if (verbose) {
+ fprintf(stderr,"%s: %s: extra field of %u bytes ignored\n",
+ progname, ifname, len);
+ }
+ while (len--) (void)get_byte();
+ }
+
+ /* Get original file name if it was truncated */
+ if ((flags & ORIG_NAME) != 0) {
+ if (no_name || (to_stdout && !list) || part_nb > 1) {
+ /* Discard the old name */
+ char c; /* dummy used for NeXTstep 3.0 cc optimizer bug */
+ do {c=get_byte();} while (c != 0);
+ } else {
+ /* Copy the base name. Keep a directory prefix intact. */
+ char *p = base_name (ofname);
+ char *base = p;
+ for (;;) {
+ *p = (char)get_char();
+ if (*p++ == '\0') break;
+ if (p >= ofname+sizeof(ofname)) {
+ error("corrupted input -- file name too large");
+ }
+ }
+ /* If necessary, adapt the name to local OS conventions: */
+ if (!list) {
+ MAKE_LEGAL_NAME(base);
+ if (base) list=0; /* avoid warning about unused variable */
+ }
+ } /* no_name || to_stdout */
+ } /* ORIG_NAME */
+
+ /* Discard file comment if any */
+ if ((flags & COMMENT) != 0) {
+ while (get_char() != 0) /* null */ ;
+ }
+ if (part_nb == 1) {
+ header_bytes = inptr + 2*sizeof(long); /* include crc and size */
+ }
+
+ } else if (memcmp(magic, PKZIP_MAGIC, 2) == 0 && inptr == 2
+ && memcmp((char*)inbuf, PKZIP_MAGIC, 4) == 0) {
+ /* To simplify the code, we support a zip file when alone only.
+ * We are thus guaranteed that the entire local header fits in inbuf.
+ */
+ inptr = 0;
+ work = unzip;
+ if (check_zipfile(in) != OK) return -1;
+ /* check_zipfile may get ofname from the local header */
+ last_member = 1;
+
+ } else if (memcmp(magic, PACK_MAGIC, 2) == 0) {
+ work = unpack;
+ method = PACKED;
+
+ } else if (memcmp(magic, LZW_MAGIC, 2) == 0) {
+ work = unlzw;
+ method = COMPRESSED;
+ last_member = 1;
+
+ } else if (memcmp(magic, LZH_MAGIC, 2) == 0) {
+ work = unlzh;
+ method = LZHED;
+ last_member = 1;
+
+ } else if (force && to_stdout && !list) { /* pass input unchanged */
+ method = STORED;
+ work = copy;
+ inptr = 0;
+ last_member = 1;
+ }
+ if (method >= 0) return method;
+
+ if (part_nb == 1) {
+ fprintf(stderr, "\n%s: %s: not in gzip format\n", progname, ifname);
+ exit_code = ERROR;
+ return -1;
+ } else {
+ if (magic[0] == 0)
+ {
+ int inbyte;
+ for (inbyte = imagic1; inbyte == 0; inbyte = try_byte ())
+ continue;
+ if (inbyte == EOF)
+ {
+ if (verbose)
+ WARN ((stderr, "\n%s: %s: decompression OK, trailing zero bytes ignored\n",
+ progname, ifname));
+ return -3;
+ }
+ }
+
+ WARN((stderr, "\n%s: %s: decompression OK, trailing garbage ignored\n",
+ progname, ifname));
+ return -2;
+ }
+}
+
+/* ========================================================================
+ * Display the characteristics of the compressed file.
+ * If the given method is < 0, display the accumulated totals.
+ * IN assertions: time_stamp, header_bytes and ifile_size are initialized.
+ */
+local void do_list(ifd, method)
+ int ifd; /* input file descriptor */
+ int method; /* compression method */
+{
+ ulg crc; /* original crc */
+ static int first_time = 1;
+ static char* methods[MAX_METHODS] = {
+ "store", /* 0 */
+ "compr", /* 1 */
+ "pack ", /* 2 */
+ "lzh ", /* 3 */
+ "", "", "", "", /* 4 to 7 reserved */
+ "defla"}; /* 8 */
+ char *date;
+ int positive_off_t_width = 1;
+ off_t o;
+
+ for (o = OFF_T_MAX; 9 < o; o /= 10) {
+ positive_off_t_width++;
+ }
+
+ if (first_time && method >= 0) {
+ first_time = 0;
+ if (verbose) {
+ printf("method crc date time ");
+ }
+ if (!quiet) {
+ printf("%*.*s %*.*s ratio uncompressed_name\n",
+ positive_off_t_width, positive_off_t_width, "compressed",
+ positive_off_t_width, positive_off_t_width, "uncompressed");
+ }
+ } else if (method < 0) {
+ if (total_in <= 0 || total_out <= 0) return;
+ if (verbose) {
+ printf(" ");
+ }
+ if (verbose || !quiet) {
+ fprint_off(stdout, total_in, positive_off_t_width);
+ printf(" ");
+ fprint_off(stdout, total_out, positive_off_t_width);
+ printf(" ");
+ }
+ display_ratio(total_out-(total_in-header_bytes), total_out, stdout);
+ /* header_bytes is not meaningful but used to ensure the same
+ * ratio if there is a single file.
+ */
+ printf(" (totals)\n");
+ return;
+ }
+ crc = (ulg)~0; /* unknown */
+ bytes_out = -1L;
+ bytes_in = ifile_size;
+
+#if RECORD_IO == 0
+ if (method == DEFLATED && !last_member) {
+ /* Get the crc and uncompressed size for gzip'ed (not zip'ed) files.
+ * If the lseek fails, we could use read() to get to the end, but
+ * --list is used to get quick results.
+ * Use "gunzip < foo.gz | wc -c" to get the uncompressed size if
+ * you are not concerned about speed.
+ */
+ bytes_in = lseek(ifd, (off_t)(-8), SEEK_END);
+ if (bytes_in != -1L) {
+ uch buf[8];
+ bytes_in += 8L;
+ if (read(ifd, (char*)buf, sizeof(buf)) != sizeof(buf)) {
+ read_error();
+ }
+ crc = LG(buf);
+ bytes_out = LG(buf+4);
+ }
+ }
+#endif /* RECORD_IO */
+ date = ctime((time_t*)&time_stamp) + 4; /* skip the day of the week */
+ date[12] = '\0'; /* suppress the 1/100sec and the year */
+ if (verbose) {
+ printf("%5s %08lx %11s ", methods[method], crc, date);
+ }
+ fprint_off(stdout, bytes_in, positive_off_t_width);
+ printf(" ");
+ fprint_off(stdout, bytes_out, positive_off_t_width);
+ printf(" ");
+ if (bytes_in == -1L) {
+ total_in = -1L;
+ bytes_in = bytes_out = header_bytes = 0;
+ } else if (total_in >= 0) {
+ total_in += bytes_in;
+ }
+ if (bytes_out == -1L) {
+ total_out = -1L;
+ bytes_in = bytes_out = header_bytes = 0;
+ } else if (total_out >= 0) {
+ total_out += bytes_out;
+ }
+ display_ratio(bytes_out-(bytes_in-header_bytes), bytes_out, stdout);
+ printf(" %s\n", ofname);
+}
+
+/* ========================================================================
+ * Return true if the two stat structures correspond to the same file.
+ */
+local int same_file(stat1, stat2)
+ struct stat *stat1;
+ struct stat *stat2;
+{
+ return stat1->st_ino == stat2->st_ino
+ && stat1->st_dev == stat2->st_dev
+#ifdef NO_ST_INO
+ /* Can't rely on st_ino and st_dev, use other fields: */
+ && stat1->st_mode == stat2->st_mode
+ && stat1->st_uid == stat2->st_uid
+ && stat1->st_gid == stat2->st_gid
+ && stat1->st_size == stat2->st_size
+ && stat1->st_atime == stat2->st_atime
+ && stat1->st_mtime == stat2->st_mtime
+ && stat1->st_ctime == stat2->st_ctime
+#endif
+ ;
+}
+
+/* ========================================================================
+ * Return true if a file name is ambiguous because the operating system
+ * truncates file names.
+ */
+local int name_too_long(name, statb)
+ char *name; /* file name to check */
+ struct stat *statb; /* stat buf for this file name */
+{
+ int s = strlen(name);
+ char c = name[s-1];
+ struct stat tstat; /* stat for truncated name */
+ int res;
+
+ tstat = *statb; /* Just in case OS does not fill all fields */
+ name[s-1] = '\0';
+ res = stat(name, &tstat) == 0 && same_file(statb, &tstat);
+ name[s-1] = c;
+ Trace((stderr, " too_long(%s) => %d\n", name, res));
+ return res;
+}
+
+/* ========================================================================
+ * Shorten the given name by one character, or replace a .tar extension
+ * with .tgz. Truncate the last part of the name which is longer than
+ * MIN_PART characters: 1234.678.012.gz -> 123.678.012.gz. If the name
+ * has only parts shorter than MIN_PART truncate the longest part.
+ * For decompression, just remove the last character of the name.
+ *
+ * IN assertion: for compression, the suffix of the given name is z_suffix.
+ */
+local void shorten_name(name)
+ char *name;
+{
+ int len; /* length of name without z_suffix */
+ char *trunc = NULL; /* character to be truncated */
+ int plen; /* current part length */
+ int min_part = MIN_PART; /* current minimum part length */
+ char *p;
+
+ len = strlen(name);
+ if (decompress) {
+ if (len <= 1) error("name too short");
+ name[len-1] = '\0';
+ return;
+ }
+ p = get_suffix(name);
+ if (p == NULL) error("can't recover suffix\n");
+ *p = '\0';
+ save_orig_name = 1;
+
+ /* compress 1234567890.tar to 1234567890.tgz */
+ if (len > 4 && strequ(p-4, ".tar")) {
+ strcpy(p-4, ".tgz");
+ return;
+ }
+ /* Try keeping short extensions intact:
+ * 1234.678.012.gz -> 123.678.012.gz
+ */
+ do {
+ p = strrchr(name, PATH_SEP);
+ p = p ? p+1 : name;
+ while (*p) {
+ plen = strcspn(p, PART_SEP);
+ p += plen;
+ if (plen > min_part) trunc = p-1;
+ if (*p) p++;
+ }
+ } while (trunc == NULL && --min_part != 0);
+
+ if (trunc != NULL) {
+ do {
+ trunc[0] = trunc[1];
+ } while (*trunc++);
+ trunc--;
+ } else {
+ trunc = strrchr(name, PART_SEP[0]);
+ if (trunc == NULL) error("internal error in shorten_name");
+ if (trunc[1] == '\0') trunc--; /* force truncation */
+ }
+ strcpy(trunc, z_suffix);
+}
+
+/* ========================================================================
+ * If compressing to a file, check if ofname is not ambiguous
+ * because the operating system truncates names. Otherwise, generate
+ * a new ofname and save the original name in the compressed file.
+ * If the compressed file already exists, ask for confirmation.
+ * The check for name truncation is made dynamically, because different
+ * file systems on the same OS might use different truncation rules (on SVR4
+ * s5 truncates to 14 chars and ufs does not truncate).
+ * This function returns -1 if the file must be skipped, and
+ * updates save_orig_name if necessary.
+ * IN assertions: save_orig_name is already set if ofname has been
+ * already truncated because of NO_MULTIPLE_DOTS. The input file has
+ * already been open and istat is set.
+ */
+local int check_ofname()
+{
+ struct stat ostat; /* stat for ofname */
+
+#ifdef ENAMETOOLONG
+ /* Check for strictly conforming Posix systems (which return ENAMETOOLONG
+ * instead of silently truncating filenames).
+ */
+ errno = 0;
+ while (stat(ofname, &ostat) != 0) {
+ if (errno != ENAMETOOLONG) return 0; /* ofname does not exist */
+ shorten_name(ofname);
+ }
+#else
+ if (stat(ofname, &ostat) != 0) return 0;
+#endif
+ /* Check for name truncation on existing file. Do this even on systems
+ * defining ENAMETOOLONG, because on most systems the strict Posix
+ * behavior is disabled by default (silent name truncation allowed).
+ */
+ if (!decompress && name_too_long(ofname, &ostat)) {
+ shorten_name(ofname);
+ if (stat(ofname, &ostat) != 0) return 0;
+ }
+
+ /* Check that the input and output files are different (could be
+ * the same by name truncation or links).
+ */
+ if (same_file(&istat, &ostat)) {
+ if (strequ(ifname, ofname)) {
+ fprintf(stderr, "%s: %s: cannot %scompress onto itself\n",
+ progname, ifname, decompress ? "de" : "");
+ } else {
+ fprintf(stderr, "%s: %s and %s are the same file\n",
+ progname, ifname, ofname);
+ }
+ exit_code = ERROR;
+ return ERROR;
+ }
+ /* Ask permission to overwrite the existing file */
+ if (!force) {
+ int ok = 0;
+ fprintf(stderr, "%s: %s already exists;", progname, ofname);
+ if (foreground && isatty(fileno(stdin))) {
+ fprintf(stderr, " do you wish to overwrite (y or n)? ");
+ fflush(stderr);
+ ok = yesno();
+ }
+ if (!ok) {
+ fprintf(stderr, "\tnot overwritten\n");
+ if (exit_code == OK) exit_code = WARNING;
+ return ERROR;
+ }
+ }
+ if (xunlink (ofname)) {
+ progerror(ofname);
+ return ERROR;
+ }
+ return OK;
+}
+
+
+#ifndef NO_UTIME
+/* ========================================================================
+ * Set the access and modification times from the given stat buffer.
+ */
+local void reset_times (name, statb)
+ char *name;
+ struct stat *statb;
+{
+ struct utimbuf timep;
+
+ /* Copy the time stamp */
+ timep.actime = statb->st_atime;
+ timep.modtime = statb->st_mtime;
+
+ /* Some systems (at least OS/2) do not support utime on directories */
+ if (utime(name, &timep) && !S_ISDIR(statb->st_mode)) {
+ int e = errno;
+ WARN((stderr, "%s: ", progname));
+ if (!quiet) {
+ errno = e;
+ perror(ofname);
+ }
+ }
+}
+#endif
+
+
+/* ========================================================================
+ * Copy modes, times, ownership from input file to output file.
+ * IN assertion: to_stdout is false.
+ */
+local void copy_stat(ifstat)
+ struct stat *ifstat;
+{
+#ifndef NO_UTIME
+ if (decompress && time_stamp != 0 && ifstat->st_mtime != time_stamp) {
+ ifstat->st_mtime = time_stamp;
+ if (verbose > 1) {
+ fprintf(stderr, "%s: time stamp restored\n", ofname);
+ }
+ }
+ reset_times(ofname, ifstat);
+#endif
+ /* Copy the protection modes */
+ if (chmod(ofname, ifstat->st_mode & 07777)) {
+ int e = errno;
+ WARN((stderr, "%s: ", progname));
+ if (!quiet) {
+ errno = e;
+ perror(ofname);
+ }
+ }
+#ifndef NO_CHOWN
+ chown(ofname, ifstat->st_uid, ifstat->st_gid); /* Copy ownership */
+#endif
+ remove_ofname = 0;
+ /* It's now safe to remove the input file: */
+ if (xunlink (ifname)) {
+ int e = errno;
+ WARN((stderr, "%s: ", progname));
+ if (!quiet) {
+ errno = e;
+ perror(ifname);
+ }
+ }
+}
+
+#ifndef NO_DIR
+
+/* ========================================================================
+ * Recurse through the given directory. This code is taken from ncompress.
+ */
+local void treat_dir(dir)
+ char *dir;
+{
+ struct dirent *dp;
+ DIR *dirp;
+ char nbuf[MAX_PATH_LEN];
+ int len;
+
+ dirp = opendir(dir);
+
+ if (dirp == NULL) {
+ progerror(dir);
+ return ;
+ }
+ /*
+ ** WARNING: the following algorithm could occasionally cause
+ ** compress to produce error warnings of the form "<filename>.gz
+ ** already has .gz suffix - ignored". This occurs when the
+ ** .gz output file is inserted into the directory below
+ ** readdir's current pointer.
+ ** These warnings are harmless but annoying, so they are suppressed
+ ** with option -r (except when -v is on). An alternative
+ ** to allowing this would be to store the entire directory
+ ** list in memory, then compress the entries in the stored
+ ** list. Given the depth-first recursive algorithm used here,
+ ** this could use up a tremendous amount of memory. I don't
+ ** think it's worth it. -- Dave Mack
+ ** (An other alternative might be two passes to avoid depth-first.)
+ */
+
+ while ((errno = 0, dp = readdir(dirp)) != NULL) {
+
+ if (strequ(dp->d_name,".") || strequ(dp->d_name,"..")) {
+ continue;
+ }
+ len = strlen(dir);
+ if (len + NAMLEN(dp) + 1 < MAX_PATH_LEN - 1) {
+ strcpy(nbuf,dir);
+ if (len != 0 /* dir = "" means current dir on Amiga */
+#ifdef PATH_SEP2
+ && dir[len-1] != PATH_SEP2
+#endif
+#ifdef PATH_SEP3
+ && dir[len-1] != PATH_SEP3
+#endif
+ ) {
+ nbuf[len++] = PATH_SEP;
+ }
+ strcpy(nbuf+len, dp->d_name);
+ treat_file(nbuf);
+ } else {
+ fprintf(stderr,"%s: %s/%s: pathname too long\n",
+ progname, dir, dp->d_name);
+ exit_code = ERROR;
+ }
+ }
+ if (errno != 0)
+ progerror(dir);
+ if (CLOSEDIR(dirp) != 0)
+ progerror(dir);
+}
+#endif /* ? NO_DIR */
+
+/* ========================================================================
+ * Free all dynamically allocated variables and exit with the given code.
+ */
+local void do_exit(exitcode)
+ int exitcode;
+{
+ static int in_exit = 0;
+
+ if (in_exit) exit(exitcode);
+ in_exit = 1;
+ if (env != NULL) free(env), env = NULL;
+ if (args != NULL) free((char*)args), args = NULL;
+ FREE(inbuf);
+ FREE(outbuf);
+ FREE(d_buf);
+ FREE(window);
+#ifndef MAXSEG_64K
+ FREE(tab_prefix);
+#else
+ FREE(tab_prefix0);
+ FREE(tab_prefix1);
+#endif
+ exit(exitcode);
+}
+
+/* ========================================================================
+ * Signal and error handler.
+ */
+RETSIGTYPE abort_gzip()
+{
+ if (remove_ofname) {
+ close(ofd);
+ xunlink (ofname);
+ }
+ do_exit(ERROR);
+}
--- /dev/null
+
+User Commands GZIP(1)
+
+NAME
+ gzip, gunzip, zcat - compress or expand files
+
+SYNOPSIS
+ gzip [ -acdfhlLnNrtvV19 ] [-S suffix] [ name ... ]
+ gunzip [ -acfhlLnNrtvV ] [-S suffix] [ name ... ]
+ zcat [ -fhLV ] [ name ... ]
+
+DESCRIPTION
+ Gzip reduces the size of the named files using Lempel-Ziv
+ coding (LZ77). Whenever possible, each file is replaced by
+ one with the extension .gz, while keeping the same ownership
+ modes, access and modification times. (The default exten-
+ sion is -gz for VMS, z for MSDOS, OS/2 FAT, Windows NT FAT
+ and Atari.) If no files are specified, or if a file name is
+ "-", the standard input is compressed to the standard out-
+ put. Gzip will only attempt to compress regular files. In
+ particular, it will ignore symbolic links.
+
+ If the compressed file name is too long for its file system,
+ gzip truncates it. Gzip attempts to truncate only the parts
+ of the file name longer than 3 characters. (A part is
+ delimited by dots.) If the name consists of small parts
+ only, the longest parts are truncated. For example, if file
+ names are limited to 14 characters, gzip.msdos.exe is com-
+ pressed to gzi.msd.exe.gz. Names are not truncated on sys-
+ tems which do not have a limit on file name length.
+
+ By default, gzip keeps the original file name and timestamp
+ in the compressed file. These are used when decompressing
+ the file with the -N option. This is useful when the com-
+ pressed file name was truncated or when the time stamp was
+ not preserved after a file transfer.
+
+ Compressed files can be restored to their original form
+ using gzip -d or gunzip or zcat. If the original name saved
+ in the compressed file is not suitable for its file system,
+ a new name is constructed from the original one to make it
+ legal.
+
+ gunzip takes a list of files on its command line and
+ replaces each file whose name ends with .gz, -gz, .z, -z, _z
+ or .Z and which begins with the correct magic number with an
+ uncompressed file without the original extension. gunzip
+ also recognizes the special extensions .tgz and .taz as
+ shorthands for .tar.gz and .tar.Z respectively. When com-
+ pressing, gzip uses the .tgz extension if necessary instead
+ of truncating a file with a .tar extension.
+
+ gunzip can currently decompress files created by gzip, zip,
+ compress, compress -H or pack. The detection of the input
+ format is automatic. When using the first two formats,
+
+SunOS 5.8 Last change: local 1
+
+User Commands GZIP(1)
+
+ gunzip checks a 32 bit CRC. For pack, gunzip checks the
+ uncompressed length. The standard compress format was not
+ designed to allow consistency checks. However gunzip is
+ sometimes able to detect a bad .Z file. If you get an error
+ when uncompressing a .Z file, do not assume that the .Z file
+ is correct simply because the standard uncompress does not
+ complain. This generally means that the standard uncompress
+ does not check its input, and happily generates garbage out-
+ put. The SCO compress -H format (lzh compression method)
+ does not include a CRC but also allows some consistency
+ checks.
+
+ Files created by zip can be uncompressed by gzip only if
+ they have a single member compressed with the 'deflation'
+ method. This feature is only intended to help conversion of
+ tar.zip files to the tar.gz format. To extract zip files
+ with several members, use unzip instead of gunzip.
+
+ zcat is identical to gunzip -c. (On some systems, zcat may
+ be installed as gzcat to preserve the original link to com-
+ press.) zcat uncompresses either a list of files on the
+ command line or its standard input and writes the uncom-
+ pressed data on standard output. zcat will uncompress files
+ that have the correct magic number whether they have a .gz
+ suffix or not.
+
+ Gzip uses the Lempel-Ziv algorithm used in zip and PKZIP.
+ The amount of compression obtained depends on the size of
+ the input and the distribution of common substrings. Typi-
+ cally, text such as source code or English is reduced by
+ 60-70%. Compression is generally much better than that
+ achieved by LZW (as used in compress), Huffman coding (as
+ used in pack), or adaptive Huffman coding (compact).
+
+ Compression is always performed, even if the compressed file
+ is slightly larger than the original. The worst case expan-
+ sion is a few bytes for the gzip file header, plus 5 bytes
+ every 32K block, or an expansion ratio of 0.015% for large
+ files. Note that the actual number of used disk blocks
+ almost never increases. gzip preserves the mode, ownership
+ and timestamps of files when compressing or decompressing.
+
+OPTIONS
+ -a --ascii
+ Ascii text mode: convert end-of-lines using local con-
+ ventions. This option is supported only on some non-
+ Unix systems. For MSDOS, CR LF is converted to LF when
+ compressing, and LF is converted to CR LF when decom-
+ pressing.
+
+ -c --stdout --to-stdout
+
+SunOS 5.8 Last change: local 2
+
+User Commands GZIP(1)
+
+ Write output on standard output; keep original files
+ unchanged. If there are several input files, the out-
+ put consists of a sequence of independently compressed
+ members. To obtain better compression, concatenate all
+ input files before compressing them.
+
+ -d --decompress --uncompress
+ Decompress.
+
+ -f --force
+ Force compression or decompression even if the file has
+ multiple links or the corresponding file already
+ exists, or if the compressed data is read from or writ-
+ ten to a terminal. If the input data is not in a format
+ recognized by gzip, and if the option --stdout is also
+ given, copy the input data without change to the stan-
+ dard ouput: let zcat behave as cat. If -f is not
+ given, and when not running in the background, gzip
+ prompts to verify whether an existing file should be
+ overwritten.
+
+ -h --help
+ Display a help screen and quit.
+
+ -l --list
+ For each compressed file, list the following fields:
+
+ compressed size: size of the compressed file
+ uncompressed size: size of the uncompressed file
+ ratio: compression ratio (0.0% if unknown)
+ uncompressed_name: name of the uncompressed file
+
+ The uncompressed size is given as -1 for files not in
+ gzip format, such as compressed .Z files. To get the
+ uncompressed size for such a file, you can use:
+
+ zcat file.Z | wc -c
+
+ In combination with the --verbose option, the following
+ fields are also displayed:
+
+ method: compression method
+ crc: the 32-bit CRC of the uncompressed data
+ date & time: time stamp for the uncompressed file
+
+ The compression methods currently supported are
+ deflate, compress, lzh (SCO compress -H) and pack. The
+ crc is given as ffffffff for a file not in gzip format.
+
+ With --name, the uncompressed name, date and time are
+ those stored within the compress file if present.
+
+SunOS 5.8 Last change: local 3
+
+User Commands GZIP(1)
+
+ With --verbose, the size totals and compression ratio
+ for all files is also displayed, unless some sizes are
+ unknown. With --quiet, the title and totals lines are
+ not displayed.
+
+ -L --license
+ Display the gzip license and quit.
+
+ -n --no-name
+ When compressing, do not save the original file name
+ and time stamp by default. (The original name is always
+ saved if the name had to be truncated.) When decom-
+ pressing, do not restore the original file name if pre-
+ sent (remove only the gzip suffix from the compressed
+ file name) and do not restore the original time stamp
+ if present (copy it from the compressed file). This
+ option is the default when decompressing.
+
+ -N --name
+ When compressing, always save the original file name
+ and time stamp; this is the default. When decompress-
+ ing, restore the original file name and time stamp if
+ present. This option is useful on systems which have a
+ limit on file name length or when the time stamp has
+ been lost after a file transfer.
+
+ -q --quiet
+ Suppress all warnings.
+
+ -r --recursive
+ Travel the directory structure recursively. If any of
+ the file names specified on the command line are direc-
+ tories, gzip will descend into the directory and com-
+ press all the files it finds there (or decompress them
+ in the case of gunzip ).
+
+ -S .suf --suffix .suf
+ Use suffix .suf instead of .gz. Any suffix can be
+ given, but suffixes other than .z and .gz should be
+ avoided to avoid confusion when files are transferred
+ to other systems. A null suffix forces gunzip to try
+ decompression on all given files regardless of suffix,
+ as in:
+
+ gunzip -S "" * (*.* for MSDOS)
+
+ Previous versions of gzip used the .z suffix. This was
+ changed to avoid a conflict with pack(1).
+
+ -t --test
+ Test. Check the compressed file integrity.
+
+SunOS 5.8 Last change: local 4
+
+User Commands GZIP(1)
+
+ -v --verbose
+ Verbose. Display the name and percentage reduction for
+ each file compressed or decompressed.
+
+ -V --version
+ Version. Display the version number and compilation
+ options then quit.
+
+ -# --fast --best
+ Regulate the speed of compression using the specified
+ digit #, where -1 or --fast indicates the fastest com-
+ pression method (less compression) and -9 or --best
+ indicates the slowest compression method (best compres-
+ sion). The default compression level is -6 (that is,
+ biased towards high compression at expense of speed).
+
+ADVANCED USAGE
+ Multiple compressed files can be concatenated. In this case,
+ gunzip will extract all members at once. For example:
+
+ gzip -c file1 > foo.gz
+ gzip -c file2 >> foo.gz
+
+ Then
+
+ gunzip -c foo
+
+ is equivalent to
+
+ cat file1 file2
+
+ In case of damage to one member of a .gz file, other members
+ can still be recovered (if the damaged member is removed).
+ However, you can get better compression by compressing all
+ members at once:
+
+ cat file1 file2 | gzip > foo.gz
+
+ compresses better than
+
+ gzip -c file1 file2 > foo.gz
+
+ If you want to recompress concatenated files to get better
+ compression, do:
+
+ gzip -cd old.gz | gzip > new.gz
+
+ If a compressed file consists of several members, the uncom-
+ pressed size and CRC reported by the --list option applies
+ to the last member only. If you need the uncompressed size
+ for all members, you can use:
+
+SunOS 5.8 Last change: local 5
+
+User Commands GZIP(1)
+
+ gzip -cd file.gz | wc -c
+
+ If you wish to create a single archive file with multiple
+ members so that members can later be extracted indepen-
+ dently, use an archiver such as tar or zip. GNU tar supports
+ the -z option to invoke gzip transparently. gzip is designed
+ as a complement to tar, not as a replacement.
+
+ENVIRONMENT
+ The environment variable GZIP can hold a set of default
+ options for gzip. These options are interpreted first and
+ can be overwritten by explicit command line parameters. For
+ example:
+ for sh: GZIP="-8v --name"; export GZIP
+ for csh: setenv GZIP "-8v --name"
+ for MSDOS: set GZIP=-8v --name
+
+ On Vax/VMS, the name of the environment variable is
+ GZIP_OPT, to avoid a conflict with the symbol set for invo-
+ cation of the program.
+
+SEE ALSO
+ znew(1), zcmp(1), zmore(1), zforce(1), gzexe(1), zip(1),
+ unzip(1), compress(1), pack(1), compact(1)
+
+ The gzip file format is specified in P. Deutsch, GZIP file
+ format specification version 4.3, <ftp://ftp.isi.edu/in-
+ notes/rfc1952.txt>, Internet RFC 1952 (May 1996). The zip
+ deflation format is specified in P. Deutsch, DEFLATE Com-
+ pressed Data Format Specification version 1.3,
+ <ftp://ftp.isi.edu/in-notes/rfc1951.txt>, Internet RFC 1951
+ (May 1996).
+
+DIAGNOSTICS
+ Exit status is normally 0; if an error occurs, exit status
+ is 1. If a warning occurs, exit status is 2.
+
+ Usage: gzip [-cdfhlLnNrtvV19] [-S suffix] [file ...]
+ Invalid options were specified on the command line.
+
+ file: not in gzip format
+ The file specified to gunzip has not been compressed.
+
+ file: Corrupt input. Use zcat to recover some data.
+ The compressed file has been damaged. The data up to
+ the point of failure can be recovered using
+
+ zcat file > recover
+
+ file: compressed with xx bits, can only handle yy bits
+ File was compressed (using LZW) by a program that could
+ deal with more bits than the decompress code on this
+
+SunOS 5.8 Last change: local 6
+
+User Commands GZIP(1)
+
+ machine. Recompress the file with gzip, which com-
+ presses better and uses less memory.
+
+ file: already has .gz suffix -- no change
+ The file is assumed to be already compressed. Rename
+ the file and try again.
+
+ file already exists; do you wish to overwrite (y or n)?
+ Respond "y" if you want the output file to be replaced;
+ "n" if not.
+
+ gunzip: corrupt input
+ A SIGSEGV violation was detected which usually means
+ that the input file has been corrupted.
+
+ xx.x% Percentage of the input saved by compression.
+ (Relevant only for -v and -l.)
+
+ -- not a regular file or directory: ignored
+ When the input file is not a regular file or directory,
+ (e.g. a symbolic link, socket, FIFO, device file), it
+ is left unaltered.
+
+ -- has xx other links: unchanged
+ The input file has links; it is left unchanged. See
+ ln(1) for more information. Use the -f flag to force
+ compression of multiply-linked files.
+
+CAVEATS
+ When writing compressed data to a tape, it is generally nec-
+ essary to pad the output with zeroes up to a block boundary.
+ When the data is read and the whole block is passed to gun-
+ zip for decompression, gunzip detects that there is extra
+ trailing garbage after the compressed data and emits a warn-
+ ing by default. You have to use the --quiet option to sup-
+ press the warning. This option can be set in the GZIP envi-
+ ronment variable as in:
+ for sh: GZIP="-q" tar -xfz --block-compress /dev/rst0
+ for csh: (setenv GZIP -q; tar -xfz --block-compr /dev/rst0
+
+ In the above example, gzip is invoked implicitly by the -z
+ option of GNU tar. Make sure that the same block size (-b
+ option of tar) is used for reading and writing compressed
+ data on tapes. (This example assumes you are using the GNU
+ version of tar.)
+
+BUGS
+ The gzip format represents the the input size modulo 2^32,
+ so the --list option reports incorrect uncompressed sizes
+ and compression ratios for uncompressed files 4 GB and
+ larger. To work around this problem, you can use the fol-
+ lowing command to discover a large uncompressed file's true
+
+SunOS 5.8 Last change: local 7
+
+User Commands GZIP(1)
+
+ size:
+
+ zcat file.gz | wc -c
+
+ The --list option reports sizes as -1 and crc as ffffffff if
+ the compressed file is on a non seekable media.
+
+ In some rare cases, the --best option gives worse compres-
+ sion than the default compression level (-6). On some highly
+ redundant files, compress compresses better than gzip.
+
+COPYRIGHT NOTICE
+ Copyright (C) 1998, 1999, 2001 Free Software Foundation,
+ Inc.
+ Copyright (C) 1992, 1993 Jean-loup Gailly
+
+ Permission is granted to make and distribute verbatim copies
+ of this manual provided the copyright notice and this per-
+ mission notice are preserved on all copies.
+
+ Permission is granted to copy and distribute modified ver-
+ sions of this manual under the conditions for verbatim copy-
+ ing, provided that the entire resulting derived work is dis-
+ tributed under the terms of a permission notice identical to
+ this one.
+
+ Permission is granted to copy and distribute translations of
+ this manual into another language, under the above condi-
+ tions for modified versions, except that this permission
+ notice may be stated in a translation approved by the Foun-
+ dation.
+
+SunOS 5.8 Last change: local 8
+
--- /dev/null
+/* gzip.h -- common declarations for all gzip modules
+ * Copyright (C) 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#if defined(__STDC__) || defined(PROTO)
+# define OF(args) args
+#else
+# define OF(args) ()
+#endif
+
+#ifdef __STDC__
+ typedef void *voidp;
+#else
+ typedef char *voidp;
+#endif
+
+/* I don't like nested includes, but the following headers are used
+ * too often
+ */
+#include <stdio.h>
+#include <sys/types.h> /* for off_t, time_t */
+#if defined HAVE_STRING_H || defined STDC_HEADERS
+# include <string.h>
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H && !defined __GNUC__
+# include <memory.h>
+# endif
+# define memzero(s, n) memset ((voidp)(s), 0, (n))
+#else
+# include <strings.h>
+# define strchr index
+# define strrchr rindex
+# define memcpy(d, s, n) bcopy((s), (d), (n))
+# define memcmp(s1, s2, n) bcmp((s1), (s2), (n))
+# define memzero(s, n) bzero((s), (n))
+#endif
+
+#ifndef RETSIGTYPE
+# define RETSIGTYPE void
+#endif
+
+#define local static
+
+typedef unsigned char uch;
+typedef unsigned short ush;
+typedef unsigned long ulg;
+
+/* Return codes from gzip */
+#define OK 0
+#define ERROR 1
+#define WARNING 2
+
+/* Compression methods (see algorithm.doc) */
+#define STORED 0
+#define COMPRESSED 1
+#define PACKED 2
+#define LZHED 3
+/* methods 4 to 7 reserved */
+#define DEFLATED 8
+#define MAX_METHODS 9
+extern int method; /* compression method */
+
+/* To save memory for 16 bit systems, some arrays are overlaid between
+ * the various modules:
+ * deflate: prev+head window d_buf l_buf outbuf
+ * unlzw: tab_prefix tab_suffix stack inbuf outbuf
+ * inflate: window inbuf
+ * unpack: window inbuf prefix_len
+ * unlzh: left+right window c_table inbuf c_len
+ * For compression, input is done in window[]. For decompression, output
+ * is done in window except for unlzw.
+ */
+
+#ifndef INBUFSIZ
+# ifdef SMALL_MEM
+# define INBUFSIZ 0x2000 /* input buffer size */
+# else
+# define INBUFSIZ 0x8000 /* input buffer size */
+# endif
+#endif
+#define INBUF_EXTRA 64 /* required by unlzw() */
+
+#ifndef OUTBUFSIZ
+# ifdef SMALL_MEM
+# define OUTBUFSIZ 8192 /* output buffer size */
+# else
+# define OUTBUFSIZ 16384 /* output buffer size */
+# endif
+#endif
+#define OUTBUF_EXTRA 2048 /* required by unlzw() */
+
+#ifndef DIST_BUFSIZE
+# ifdef SMALL_MEM
+# define DIST_BUFSIZE 0x2000 /* buffer for distances, see trees.c */
+# else
+# define DIST_BUFSIZE 0x8000 /* buffer for distances, see trees.c */
+# endif
+#endif
+
+#ifdef DYN_ALLOC
+# define EXTERN(type, array) extern type * near array
+# define DECLARE(type, array, size) type * near array
+# define ALLOC(type, array, size) { \
+ array = (type*)fcalloc((size_t)(((size)+1L)/2), 2*sizeof(type)); \
+ if (array == NULL) error("insufficient memory"); \
+ }
+# define FREE(array) {if (array != NULL) fcfree(array), array=NULL;}
+#else
+# define EXTERN(type, array) extern type array[]
+# define DECLARE(type, array, size) type array[size]
+# define ALLOC(type, array, size)
+# define FREE(array)
+#endif
+
+EXTERN(uch, inbuf); /* input buffer */
+EXTERN(uch, outbuf); /* output buffer */
+EXTERN(ush, d_buf); /* buffer for distances, see trees.c */
+EXTERN(uch, window); /* Sliding window and suffix table (unlzw) */
+#define tab_suffix window
+#ifndef MAXSEG_64K
+# define tab_prefix prev /* hash link (see deflate.c) */
+# define head (prev+WSIZE) /* hash head (see deflate.c) */
+ EXTERN(ush, tab_prefix); /* prefix code (see unlzw.c) */
+#else
+# define tab_prefix0 prev
+# define head tab_prefix1
+ EXTERN(ush, tab_prefix0); /* prefix for even codes */
+ EXTERN(ush, tab_prefix1); /* prefix for odd codes */
+#endif
+
+extern unsigned insize; /* valid bytes in inbuf */
+extern unsigned inptr; /* index of next byte to be processed in inbuf */
+extern unsigned outcnt; /* bytes in output buffer */
+
+extern off_t bytes_in; /* number of input bytes */
+extern off_t bytes_out; /* number of output bytes */
+extern off_t header_bytes;/* number of bytes in gzip header */
+
+extern int ifd; /* input file descriptor */
+extern int ofd; /* output file descriptor */
+extern char ifname[]; /* input file name or "stdin" */
+extern char ofname[]; /* output file name or "stdout" */
+extern char *progname; /* program name */
+
+extern time_t time_stamp; /* original time stamp (modification time) */
+extern off_t ifile_size; /* input file size, -1 for devices (debug only) */
+
+typedef int file_t; /* Do not use stdio */
+#define NO_FILE (-1) /* in memory compression */
+
+
+#define PACK_MAGIC "\037\036" /* Magic header for packed files */
+#define GZIP_MAGIC "\037\213" /* Magic header for gzip files, 1F 8B */
+#define OLD_GZIP_MAGIC "\037\236" /* Magic header for gzip 0.5 = freeze 1.x */
+#define LZH_MAGIC "\037\240" /* Magic header for SCO LZH Compress files*/
+#define PKZIP_MAGIC "\120\113\003\004" /* Magic header for pkzip files */
+
+/* gzip flag byte */
+#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
+#define COMMENT 0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
+#define RESERVED 0xC0 /* bit 6,7: reserved */
+
+/* internal file attribute */
+#define UNKNOWN 0xffff
+#define BINARY 0
+#define ASCII 1
+
+#ifndef WSIZE
+# define WSIZE 0x8000 /* window size--must be a power of two, and */
+#endif /* at least 32K for zip's deflate method */
+
+#define MIN_MATCH 3
+#define MAX_MATCH 258
+/* The minimum and maximum match lengths */
+
+#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
+/* Minimum amount of lookahead, except at the end of the input file.
+ * See deflate.c for comments about the MIN_MATCH+1.
+ */
+
+#define MAX_DIST (WSIZE-MIN_LOOKAHEAD)
+/* In order to simplify the code, particularly on 16 bit machines, match
+ * distances are limited to MAX_DIST instead of WSIZE.
+ */
+
+extern int decrypt; /* flag to turn on decryption */
+extern int exit_code; /* program exit code */
+extern int verbose; /* be verbose (-v) */
+extern int quiet; /* be quiet (-q) */
+extern int level; /* compression level */
+extern int test; /* check .z file integrity */
+extern int to_stdout; /* output to stdout (-c) */
+extern int save_orig_name; /* set if original name must be saved */
+
+#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf(0))
+#define try_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf(1))
+
+/* put_byte is used for the compressed output, put_ubyte for the
+ * uncompressed output. However unlzw() uses window for its
+ * suffix table instead of its output buffer, so it does not use put_ubyte
+ * (to be cleaned up).
+ */
+#define put_byte(c) {outbuf[outcnt++]=(uch)(c); if (outcnt==OUTBUFSIZ)\
+ flush_outbuf();}
+#define put_ubyte(c) {window[outcnt++]=(uch)(c); if (outcnt==WSIZE)\
+ flush_window();}
+
+/* Output a 16 bit value, lsb first */
+#define put_short(w) \
+{ if (outcnt < OUTBUFSIZ-2) { \
+ outbuf[outcnt++] = (uch) ((w) & 0xff); \
+ outbuf[outcnt++] = (uch) ((ush)(w) >> 8); \
+ } else { \
+ put_byte((uch)((w) & 0xff)); \
+ put_byte((uch)((ush)(w) >> 8)); \
+ } \
+}
+
+/* Output a 32 bit value to the bit stream, lsb first */
+#define put_long(n) { \
+ put_short((n) & 0xffff); \
+ put_short(((ulg)(n)) >> 16); \
+}
+
+#define seekable() 0 /* force sequential output */
+#define translate_eol 0 /* no option -a yet */
+
+#define tolow(c) (isupper (c) ? tolower (c) : (c)) /* force to lower case */
+
+/* Macros for getting two-byte and four-byte header values */
+#define SH(p) ((ush)(uch)((p)[0]) | ((ush)(uch)((p)[1]) << 8))
+#define LG(p) ((ulg)(SH(p)) | ((ulg)(SH((p)+2)) << 16))
+
+/* Diagnostic functions */
+#ifdef DEBUG
+# define Assert(cond,msg) {if(!(cond)) error(msg);}
+# define Trace(x) fprintf x
+# define Tracev(x) {if (verbose) fprintf x ;}
+# define Tracevv(x) {if (verbose>1) fprintf x ;}
+# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+# define Assert(cond,msg)
+# define Trace(x)
+# define Tracev(x)
+# define Tracevv(x)
+# define Tracec(c,x)
+# define Tracecv(c,x)
+#endif
+
+#define WARN(msg) {if (!quiet) fprintf msg ; \
+ if (exit_code == OK) exit_code = WARNING;}
+
+ /* in zip.c: */
+extern int zip OF((int in, int out));
+extern int file_read OF((char *buf, unsigned size));
+
+ /* in unzip.c */
+extern int unzip OF((int in, int out));
+extern int check_zipfile OF((int in));
+
+ /* in unpack.c */
+extern int unpack OF((int in, int out));
+
+ /* in unlzh.c */
+extern int unlzh OF((int in, int out));
+
+ /* in gzip.c */
+RETSIGTYPE abort_gzip OF((void));
+
+ /* in deflate.c */
+void lm_init OF((int pack_level, ush *flags));
+off_t deflate OF((void));
+
+ /* in trees.c */
+void ct_init OF((ush *attr, int *method));
+int ct_tally OF((int dist, int lc));
+off_t flush_block OF((char *buf, ulg stored_len, int eof));
+
+ /* in bits.c */
+void bi_init OF((file_t zipfile));
+void send_bits OF((int value, int length));
+unsigned bi_reverse OF((unsigned value, int length));
+void bi_windup OF((void));
+void copy_block OF((char *buf, unsigned len, int header));
+extern int (*read_buf) OF((char *buf, unsigned size));
+
+ /* in util.c: */
+extern int copy OF((int in, int out));
+extern ulg updcrc OF((uch *s, unsigned n));
+extern void clear_bufs OF((void));
+extern int fill_inbuf OF((int eof_ok));
+extern void flush_outbuf OF((void));
+extern void flush_window OF((void));
+extern void write_buf OF((int fd, voidp buf, unsigned cnt));
+extern char *strlwr OF((char *s));
+extern char *base_name OF((char *fname));
+extern int xunlink OF((char *fname));
+extern void make_simple_name OF((char *name));
+extern char *add_envopt OF((int *argcp, char ***argvp, char *env));
+extern void error OF((char *m));
+extern void warning OF((char *m));
+extern void read_error OF((void));
+extern void write_error OF((void));
+extern void display_ratio OF((off_t num, off_t den, FILE *file));
+extern void fprint_off OF((FILE *, off_t, int));
+extern voidp xmalloc OF((unsigned int size));
+
+ /* in inflate.c */
+extern int inflate OF((void));
+
+ /* in yesno.c */
+extern int yesno OF((void));
--- /dev/null
+This is gzip.info, produced by makeinfo version 4.0 from gzip.texi.
+
+INFO-DIR-SECTION Utilities
+START-INFO-DIR-ENTRY
+* Gzip: (gzip). The gzip command for compressing files.
+END-INFO-DIR-ENTRY
+
+ This file documents the the GNU `gzip' command for compressing files.
+
+ Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+Copyright (C) 1992-1993 Jean-loup Gailly
+
+ Permission is granted to make and distribute verbatim copies of this
+manual provided the copyright notice and this permission notice are
+preserved on all copies.
+
+ Permission is granted to copy and distribute modified versions of
+this manual under the conditions for verbatim copying, provided that
+the entire resulting derived work is distributed under the terms of a
+permission notice identical to this one.
+
+ Permission is granted to copy and distribute translations of this
+manual into another language, under the above conditions for modified
+versions, except that this permission notice may be stated in a
+translation approved by the Foundation.
+
+\1f
+File: gzip.info, Node: Top, Up: (dir)
+
+ This file documents the `gzip' command to compress files.
+
+* Menu:
+
+* Overview:: Preliminary information.
+* Sample:: Sample output from `gzip'.
+* Invoking gzip:: How to run `gzip'.
+* Advanced usage:: Concatenated files.
+* Environment:: The `GZIP' environment variable
+* Tapes:: Using `gzip' on tapes.
+* Problems:: Reporting bugs.
+* Concept Index:: Index of concepts.
+
+\1f
+File: gzip.info, Node: Overview, Next: Sample, Up: Top
+
+Overview
+********
+
+ `gzip' reduces the size of the named files using Lempel-Ziv coding
+(LZ77). Whenever possible, each file is replaced by one with the
+extension `.gz', while keeping the same ownership modes, access and
+modification times. (The default extension is `-gz' for VMS, `z' for
+MSDOS, OS/2 FAT and Atari.) If no files are specified or if a file
+name is "-", the standard input is compressed to the standard output.
+`gzip' will only attempt to compress regular files. In particular, it
+will ignore symbolic links.
+
+ If the new file name is too long for its file system, `gzip'
+truncates it. `gzip' attempts to truncate only the parts of the file
+name longer than 3 characters. (A part is delimited by dots.) If the
+name consists of small parts only, the longest parts are truncated.
+For example, if file names are limited to 14 characters, gzip.msdos.exe
+is compressed to gzi.msd.exe.gz. Names are not truncated on systems
+which do not have a limit on file name length.
+
+ By default, `gzip' keeps the original file name and timestamp in the
+compressed file. These are used when decompressing the file with the
+`-N' option. This is useful when the compressed file name was truncated
+or when the time stamp was not preserved after a file transfer.
+
+ Compressed files can be restored to their original form using `gzip
+-d' or `gunzip' or `zcat'. If the original name saved in the
+compressed file is not suitable for its file system, a new name is
+constructed from the original one to make it legal.
+
+ `gunzip' takes a list of files on its command line and replaces each
+file whose name ends with `.gz', `.z', `.Z', `-gz', `-z' or `_z' and
+which begins with the correct magic number with an uncompressed file
+without the original extension. `gunzip' also recognizes the special
+extensions `.tgz' and `.taz' as shorthands for `.tar.gz' and `.tar.Z'
+respectively. When compressing, `gzip' uses the `.tgz' extension if
+necessary instead of truncating a file with a `.tar' extension.
+
+ `gunzip' can currently decompress files created by `gzip', `zip',
+`compress' or `pack'. The detection of the input format is automatic.
+When using the first two formats, `gunzip' checks a 32 bit CRC (cyclic
+redundancy check). For `pack', `gunzip' checks the uncompressed length.
+The `compress' format was not designed to allow consistency checks.
+However `gunzip' is sometimes able to detect a bad `.Z' file. If you
+get an error when uncompressing a `.Z' file, do not assume that the
+`.Z' file is correct simply because the standard `uncompress' does not
+complain. This generally means that the standard `uncompress' does not
+check its input, and happily generates garbage output. The SCO
+`compress -H' format (`lzh' compression method) does not include a CRC
+but also allows some consistency checks.
+
+ Files created by `zip' can be uncompressed by `gzip' only if they
+have a single member compressed with the 'deflation' method. This
+feature is only intended to help conversion of `tar.zip' files to the
+`tar.gz' format. To extract `zip' files with several members, use
+`unzip' instead of `gunzip'.
+
+ `zcat' is identical to `gunzip -c'. `zcat' uncompresses either a
+list of files on the command line or its standard input and writes the
+uncompressed data on standard output. `zcat' will uncompress files
+that have the correct magic number whether they have a `.gz' suffix or
+not.
+
+ `gzip' uses the Lempel-Ziv algorithm used in `zip' and PKZIP. The
+amount of compression obtained depends on the size of the input and the
+distribution of common substrings. Typically, text such as source code
+or English is reduced by 60-70%. Compression is generally much better
+than that achieved by LZW (as used in `compress'), Huffman coding (as
+used in `pack'), or adaptive Huffman coding (`compact').
+
+ Compression is always performed, even if the compressed file is
+slightly larger than the original. The worst case expansion is a few
+bytes for the `gzip' file header, plus 5 bytes every 32K block, or an
+expansion ratio of 0.015% for large files. Note that the actual number
+of used disk blocks almost never increases. `gzip' preserves the mode,
+ownership and timestamps of files when compressing or decompressing.
+
+ The `gzip' file format is specified in P. Deutsch, GZIP file format
+specification version 4.3, Internet RFC 1952
+(ftp://ftp.isi.edu/in-notes/rfc1952.txt) (May 1996). The `zip'
+deflation format is specified in P. Deutsch, DEFLATE Compressed Data
+Format Specification version 1.3, Internet RFC 1951
+(ftp://ftp.isi.edu/in-notes/rfc1951.txt) (May 1996).
+
+\1f
+File: gzip.info, Node: Sample, Next: Invoking gzip, Prev: Overview, Up: Top
+
+Sample Output
+*************
+
+ Here are some realistic examples of running `gzip'.
+
+ This is the output of the command `gzip -h':
+
+ gzip 1.3
+ (1999-12-21)
+ usage: gzip [-cdfhlLnNrtvV19] [-S suffix] [file ...]
+ -c --stdout write on standard output, keep original files unchanged
+ -d --decompress decompress
+ -f --force force overwrite of output file and compress links
+ -h --help give this help
+ -l --list list compressed file contents
+ -L --license display software license
+ -n --no-name do not save or restore the original name and time stamp
+ -N --name save or restore the original name and time stamp
+ -q --quiet suppress all warnings
+ -r --recursive operate recursively on directories
+ -S .suf --suffix .suf use suffix .suf on compressed files
+ -t --test test compressed file integrity
+ -v --verbose verbose mode
+ -V --version display version number
+ -1 --fast compress faster
+ -9 --best compress better
+ file... files to (de)compress. If none given, use standard input.
+ Report bugs to <bug-gzip@gnu.org>.
+
+ This is the output of the command `gzip -v texinfo.tex':
+
+ texinfo.tex: 69.7% -- replaced with texinfo.tex.gz
+
+ The following command will find all `gzip' files in the current
+directory and subdirectories, and extract them in place without
+destroying the original:
+
+ find . -name '*.gz' -print | sed 's/^\(.*\)[.]gz$/gunzip < "&" > "\1"/' | sh
+
+\1f
+File: gzip.info, Node: Invoking gzip, Next: Advanced usage, Prev: Sample, Up: Top
+
+Invoking `gzip'
+***************
+
+ The format for running the `gzip' program is:
+
+ gzip OPTION ...
+
+ `gzip' supports the following options:
+
+`--stdout'
+`--to-stdout'
+`-c'
+ Write output on standard output; keep original files unchanged.
+ If there are several input files, the output consists of a
+ sequence of independently compressed members. To obtain better
+ compression, concatenate all input files before compressing them.
+
+`--decompress'
+`--uncompress'
+`-d'
+ Decompress.
+
+`--force'
+`-f'
+ Force compression or decompression even if the file has multiple
+ links or the corresponding file already exists, or if the
+ compressed data is read from or written to a terminal. If the
+ input data is not in a format recognized by `gzip', and if the
+ option `--stdout' is also given, copy the input data without
+ change to the standard output: let `zcat' behave as `cat'. If `-f'
+ is not given, and when not running in the background, `gzip'
+ prompts to verify whether an existing file should be overwritten.
+
+`--help'
+`-h'
+ Print an informative help message describing the options then quit.
+
+`--list'
+`-l'
+ For each compressed file, list the following fields:
+
+ compressed size: size of the compressed file
+ uncompressed size: size of the uncompressed file
+ ratio: compression ratio (0.0% if unknown)
+ uncompressed_name: name of the uncompressed file
+
+ The uncompressed size is given as `-1' for files not in `gzip'
+ format, such as compressed `.Z' files. To get the uncompressed
+ size for such a file, you can use:
+
+ zcat file.Z | wc -c
+
+ In combination with the `--verbose' option, the following fields
+ are also displayed:
+
+ method: compression method (deflate,compress,lzh,pack)
+ crc: the 32-bit CRC of the uncompressed data
+ date & time: time stamp for the uncompressed file
+
+ The crc is given as ffffffff for a file not in gzip format.
+
+ With `--verbose', the size totals and compression ratio for all
+ files is also displayed, unless some sizes are unknown. With
+ `--quiet', the title and totals lines are not displayed.
+
+ The `gzip' format represents the the input size modulo 2^32, so
+ the uncompressed size and compression ratio are listed incorrectly
+ for uncompressed files 4 GB and larger. To work around this
+ problem, you can use the following command to discover a large
+ uncompressed file's true size:
+
+ zcat file.gz | wc -c
+
+`--license'
+`-L'
+ Display the `gzip' license then quit.
+
+`--no-name'
+`-n'
+ When compressing, do not save the original file name and time
+ stamp by default. (The original name is always saved if the name
+ had to be truncated.) When decompressing, do not restore the
+ original file name if present (remove only the `gzip' suffix from
+ the compressed file name) and do not restore the original time
+ stamp if present (copy it from the compressed file). This option
+ is the default when decompressing.
+
+`--name'
+`-N'
+ When compressing, always save the original file name and time
+ stamp; this is the default. When decompressing, restore the
+ original file name and time stamp if present. This option is
+ useful on systems which have a limit on file name length or when
+ the time stamp has been lost after a file transfer.
+
+`--quiet'
+`-q'
+ Suppress all warning messages.
+
+`--recursive'
+`-r'
+ Travel the directory structure recursively. If any of the file
+ names specified on the command line are directories, `gzip' will
+ descend into the directory and compress all the files it finds
+ there (or decompress them in the case of `gunzip').
+
+`--suffix SUF'
+`-S SUF'
+ Use suffix `SUF' instead of `.gz'. Any suffix can be given, but
+ suffixes other than `.z' and `.gz' should be avoided to avoid
+ confusion when files are transferred to other systems. A null
+ suffix forces gunzip to try decompression on all given files
+ regardless of suffix, as in:
+
+ gunzip -S "" * (*.* for MSDOS)
+
+ Previous versions of gzip used the `.z' suffix. This was changed to
+ avoid a conflict with `pack'.
+
+`--test'
+`-t'
+ Test. Check the compressed file integrity.
+
+`--verbose'
+`-v'
+ Verbose. Display the name and percentage reduction for each file
+ compressed.
+
+`--version'
+`-V'
+ Version. Display the version number and compilation options, then
+ quit.
+
+`--fast'
+`--best'
+`-N'
+ Regulate the speed of compression using the specified digit N,
+ where `-1' or `--fast' indicates the fastest compression method
+ (less compression) and `--best' or `-9' indicates the slowest
+ compression method (optimal compression). The default compression
+ level is `-6' (that is, biased towards high compression at expense
+ of speed).
+
+\1f
+File: gzip.info, Node: Advanced usage, Next: Environment, Prev: Invoking gzip, Up: Top
+
+Advanced usage
+**************
+
+ Multiple compressed files can be concatenated. In this case,
+`gunzip' will extract all members at once. If one member is damaged,
+other members might still be recovered after removal of the damaged
+member. Better compression can be usually obtained if all members are
+decompressed and then recompressed in a single step.
+
+ This is an example of concatenating `gzip' files:
+
+ gzip -c file1 > foo.gz
+ gzip -c file2 >> foo.gz
+
+ Then
+
+ gunzip -c foo
+
+ is equivalent to
+
+ cat file1 file2
+
+ In case of damage to one member of a `.gz' file, other members can
+still be recovered (if the damaged member is removed). However, you can
+get better compression by compressing all members at once:
+
+ cat file1 file2 | gzip > foo.gz
+
+ compresses better than
+
+ gzip -c file1 file2 > foo.gz
+
+ If you want to recompress concatenated files to get better
+compression, do:
+
+ zcat old.gz | gzip > new.gz
+
+ If a compressed file consists of several members, the uncompressed
+size and CRC reported by the `--list' option applies to the last member
+only. If you need the uncompressed size for all members, you can use:
+
+ zcat file.gz | wc -c
+
+ If you wish to create a single archive file with multiple members so
+that members can later be extracted independently, use an archiver such
+as `tar' or `zip'. GNU `tar' supports the `-z' option to invoke `gzip'
+transparently. `gzip' is designed as a complement to `tar', not as a
+replacement.
+
+\1f
+File: gzip.info, Node: Environment, Next: Tapes, Prev: Advanced usage, Up: Top
+
+Environment
+***********
+
+ The environment variable `GZIP' can hold a set of default options for
+`gzip'. These options are interpreted first and can be overwritten by
+explicit command line parameters. For example:
+
+ for sh: GZIP="-8v --name"; export GZIP
+ for csh: setenv GZIP "-8v --name"
+ for MSDOS: set GZIP=-8v --name
+
+ On Vax/VMS, the name of the environment variable is `GZIP_OPT', to
+avoid a conflict with the symbol set for invocation of the program.
+
+\1f
+File: gzip.info, Node: Tapes, Next: Problems, Prev: Environment, Up: Top
+
+Using `gzip' on tapes
+*********************
+
+ When writing compressed data to a tape, it is generally necessary to
+pad the output with zeroes up to a block boundary. When the data is
+read and the whole block is passed to `gunzip' for decompression,
+`gunzip' detects that there is extra trailing garbage after the
+compressed data and emits a warning by default if the garbage contains
+nonzero bytes. You have to use the `--quiet' option to suppress the
+warning. This option can be set in the `GZIP' environment variable, as
+in:
+
+ for sh: GZIP="-q" tar -xfz --block-compress /dev/rst0
+ for csh: (setenv GZIP "-q"; tar -xfz --block-compress /dev/rst0)
+
+ In the above example, `gzip' is invoked implicitly by the `-z'
+option of GNU `tar'. Make sure that the same block size (`-b' option
+of `tar') is used for reading and writing compressed data on tapes.
+(This example assumes you are using the GNU version of `tar'.)
+
+\1f
+File: gzip.info, Node: Problems, Next: Concept Index, Prev: Tapes, Up: Top
+
+Reporting Bugs
+**************
+
+ If you find a bug in `gzip', please send electronic mail to
+<bug-gzip@gnu.org>. Include the version number, which you can find by
+running `gzip -V'. Also include in your message the hardware and
+operating system, the compiler used to compile `gzip', a description of
+the bug behavior, and the input to `gzip' that triggered the bug.
+
+\1f
+File: gzip.info, Node: Concept Index, Prev: Problems, Up: Top
+
+Concept Index
+*************
+
+* Menu:
+
+* bugs: Problems.
+* concatenated files: Advanced usage.
+* Environment: Environment.
+* invoking: Invoking gzip.
+* options: Invoking gzip.
+* overview: Overview.
+* sample: Sample.
+* tapes: Tapes.
+
+
+\1f
+Tag Table:
+Node: Top\7f1050
+Node: Overview\7f1482
+Node: Sample\7f6128
+Node: Invoking gzip\7f7789
+Node: Advanced usage\7f12770
+Node: Environment\7f14359
+Node: Tapes\7f14927
+Node: Problems\7f15941
+Node: Concept Index\7f16393
+\1f
+End Tag Table
--- /dev/null
+\input texinfo @c -*-texinfo-*-
+@c %**start of header
+@setfilename gzip.info
+@settitle Gzip User's Manual
+@finalout
+@setchapternewpage odd
+@c %**end of header
+
+@ifinfo
+@dircategory Utilities
+@direntry
+* Gzip: (gzip). The gzip command for compressing files.
+@end direntry
+
+This file documents the the GNU @code{gzip} command for compressing files.
+
+Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+Copyright (C) 1992-1993 Jean-loup Gailly
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+are preserved on all copies.
+
+@ignore
+Permission is granted to process this file through TeX and print the
+results, provided the printed document carries copying permission
+notice identical to this one except for the removal of this paragraph
+(this paragraph not being relevant to the printed manual).
+
+@end ignore
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the entire
+resulting derived work is distributed under the terms of a permission
+notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions,
+except that this permission notice may be stated in a translation approved
+by the Foundation.
+@end ifinfo
+
+@titlepage
+@title gzip
+@subtitle The data compression program
+@subtitle Edition 1.3.2, for Gzip Version 1.3.2
+@subtitle November 2001
+@author by Jean-loup Gailly
+
+@page
+@vskip 0pt plus 1filll
+Copyright @copyright{} 1998, 1999, 2001 Free Software Foundation, Inc.
+
+Copyright @copyright{} 1992-1993 Jean-loup Gailly
+
+Permission is granted to make and distribute verbatim copies of
+this manual provided the copyright notice and this permission notice
+are preserved on all copies.
+
+Permission is granted to copy and distribute modified versions of this
+manual under the conditions for verbatim copying, provided that the entire
+resulting derived work is distributed under the terms of a permission
+notice identical to this one.
+
+Permission is granted to copy and distribute translations of this manual
+into another language, under the above conditions for modified versions,
+except that this permission notice may be stated in a translation approved
+by the Foundation.
+@end titlepage
+
+@node Top, , , (dir)
+
+@ifinfo
+This file documents the @code{gzip} command to compress files.
+@end ifinfo
+
+@menu
+* Overview:: Preliminary information.
+* Sample:: Sample output from @code{gzip}.
+* Invoking gzip:: How to run @code{gzip}.
+* Advanced usage:: Concatenated files.
+* Environment:: The @code{GZIP} environment variable
+* Tapes:: Using @code{gzip} on tapes.
+* Problems:: Reporting bugs.
+* Concept Index:: Index of concepts.
+@end menu
+
+@node Overview, Sample, , Top
+@chapter Overview
+@cindex overview
+
+@code{gzip} reduces the size of the named files using Lempel-Ziv coding
+(LZ77). Whenever possible, each file is replaced by one with the
+extension @samp{.gz}, while keeping the same ownership modes, access and
+modification times. (The default extension is @samp{-gz} for VMS,
+@samp{z} for MSDOS, OS/2 FAT and Atari.) If no files are specified or
+if a file name is "-", the standard input is compressed to the standard
+output. @code{gzip} will only attempt to compress regular files. In
+particular, it will ignore symbolic links.
+
+If the new file name is too long for its file system, @code{gzip}
+truncates it. @code{gzip} attempts to truncate only the parts of the
+file name longer than 3 characters. (A part is delimited by dots.) If
+the name consists of small parts only, the longest parts are truncated.
+For example, if file names are limited to 14 characters, gzip.msdos.exe
+is compressed to gzi.msd.exe.gz. Names are not truncated on systems
+which do not have a limit on file name length.
+
+By default, @code{gzip} keeps the original file name and timestamp in
+the compressed file. These are used when decompressing the file with the
+@samp{-N} option. This is useful when the compressed file name was
+truncated or when the time stamp was not preserved after a file
+transfer.
+
+Compressed files can be restored to their original form using @samp{gzip -d}
+or @code{gunzip} or @code{zcat}. If the original name saved in the
+compressed file is not suitable for its file system, a new name is
+constructed from the original one to make it legal.
+
+@code{gunzip} takes a list of files on its command line and replaces
+each file whose name ends with @samp{.gz}, @samp{.z}, @samp{.Z},
+@samp{-gz}, @samp{-z} or @samp{_z} and which begins with the correct
+magic number with an uncompressed file without the original extension.
+@code{gunzip} also recognizes the special extensions @samp{.tgz} and
+@samp{.taz} as shorthands for @samp{.tar.gz} and @samp{.tar.Z}
+respectively. When compressing, @code{gzip} uses the @samp{.tgz}
+extension if necessary instead of truncating a file with a @samp{.tar}
+extension.
+
+@code{gunzip} can currently decompress files created by @code{gzip},
+@code{zip}, @code{compress} or @code{pack}. The detection of the input
+format is automatic. When using the first two formats, @code{gunzip}
+checks a 32 bit CRC (cyclic redundancy check). For @code{pack},
+@code{gunzip} checks the uncompressed length. The @code{compress} format
+was not designed to allow consistency checks. However @code{gunzip} is
+sometimes able to detect a bad @samp{.Z} file. If you get an error when
+uncompressing a @samp{.Z} file, do not assume that the @samp{.Z} file is
+correct simply because the standard @code{uncompress} does not complain.
+This generally means that the standard @code{uncompress} does not check
+its input, and happily generates garbage output. The SCO @samp{compress
+-H} format (@code{lzh} compression method) does not include a CRC but
+also allows some consistency checks.
+
+Files created by @code{zip} can be uncompressed by @code{gzip} only if
+they have a single member compressed with the 'deflation' method. This
+feature is only intended to help conversion of @code{tar.zip} files to
+the @code{tar.gz} format. To extract @code{zip} files with several
+members, use @code{unzip} instead of @code{gunzip}.
+
+@code{zcat} is identical to @samp{gunzip -c}. @code{zcat}
+uncompresses either a list of files on the command line or its standard
+input and writes the uncompressed data on standard output. @code{zcat}
+will uncompress files that have the correct magic number whether they
+have a @samp{.gz} suffix or not.
+
+@code{gzip} uses the Lempel-Ziv algorithm used in @code{zip} and PKZIP.
+The amount of compression obtained depends on the size of the input and
+the distribution of common substrings. Typically, text such as source
+code or English is reduced by 60-70%. Compression is generally much
+better than that achieved by LZW (as used in @code{compress}), Huffman
+coding (as used in @code{pack}), or adaptive Huffman coding
+(@code{compact}).
+
+Compression is always performed, even if the compressed file is slightly
+larger than the original. The worst case expansion is a few bytes for
+the @code{gzip} file header, plus 5 bytes every 32K block, or an expansion
+ratio of 0.015% for large files. Note that the actual number of used
+disk blocks almost never increases. @code{gzip} preserves the mode,
+ownership and timestamps of files when compressing or decompressing.
+
+The @code{gzip} file format is specified in P. Deutsch, @sc{gzip} file
+format specification version 4.3,
+@uref{ftp://ftp.isi.edu/in-notes/rfc1952.txt, Internet RFC 1952} (May
+1996). The @code{zip} deflation format is specified in P. Deutsch,
+@sc{deflate} Compressed Data Format Specification version 1.3,
+@uref{ftp://ftp.isi.edu/in-notes/rfc1951.txt, Internet RFC 1951} (May
+1996).
+
+@node Sample, Invoking gzip, Overview, Top
+@chapter Sample Output
+@cindex sample
+
+Here are some realistic examples of running @code{gzip}.
+
+This is the output of the command @samp{gzip -h}:
+
+@example
+gzip 1.3
+(1999-12-21)
+usage: gzip [-cdfhlLnNrtvV19] [-S suffix] [file ...]
+ -c --stdout write on standard output, keep original files unchanged
+ -d --decompress decompress
+ -f --force force overwrite of output file and compress links
+ -h --help give this help
+ -l --list list compressed file contents
+ -L --license display software license
+ -n --no-name do not save or restore the original name and time stamp
+ -N --name save or restore the original name and time stamp
+ -q --quiet suppress all warnings
+ -r --recursive operate recursively on directories
+ -S .suf --suffix .suf use suffix .suf on compressed files
+ -t --test test compressed file integrity
+ -v --verbose verbose mode
+ -V --version display version number
+ -1 --fast compress faster
+ -9 --best compress better
+ file... files to (de)compress. If none given, use standard input.
+Report bugs to <bug-gzip@@gnu.org>.
+@end example
+
+This is the output of the command @samp{gzip -v texinfo.tex}:
+
+@example
+texinfo.tex: 69.7% -- replaced with texinfo.tex.gz
+@end example
+
+The following command will find all @code{gzip} files in the current
+directory and subdirectories, and extract them in place without
+destroying the original:
+
+@example
+find . -name '*.gz' -print | sed 's/^\(.*\)[.]gz$/gunzip < "&" > "\1"/' | sh
+@end example
+
+@node Invoking gzip, Advanced usage, Sample, Top
+@chapter Invoking @code{gzip}
+@cindex invoking
+@cindex options
+
+The format for running the @code{gzip} program is:
+
+@example
+gzip @var{option} @dots{}
+@end example
+
+@code{gzip} supports the following options:
+
+@table @samp
+@item --stdout
+@itemx --to-stdout
+@itemx -c
+Write output on standard output; keep original files unchanged.
+If there are several input files, the output consists of a sequence of
+independently compressed members. To obtain better compression,
+concatenate all input files before compressing them.
+
+@item --decompress
+@itemx --uncompress
+@itemx -d
+Decompress.
+
+@item --force
+@itemx -f
+Force compression or decompression even if the file has multiple links
+or the corresponding file already exists, or if the compressed data
+is read from or written to a terminal. If the input data is not in
+a format recognized by @code{gzip}, and if the option @samp{--stdout} is also
+given, copy the input data without change to the standard output: let
+@code{zcat} behave as @code{cat}. If @samp{-f} is not given, and
+when not running in the background, @code{gzip} prompts to verify
+whether an existing file should be overwritten.
+
+@item --help
+@itemx -h
+Print an informative help message describing the options then quit.
+
+@item --list
+@itemx -l
+For each compressed file, list the following fields:
+
+@example
+compressed size: size of the compressed file
+uncompressed size: size of the uncompressed file
+ratio: compression ratio (0.0% if unknown)
+uncompressed_name: name of the uncompressed file
+@end example
+
+The uncompressed size is given as @samp{-1} for files not in @code{gzip}
+format, such as compressed @samp{.Z} files. To get the uncompressed size for
+such a file, you can use:
+
+@example
+zcat file.Z | wc -c
+@end example
+
+In combination with the @samp{--verbose} option, the following fields are also
+displayed:
+
+@example
+method: compression method (deflate,compress,lzh,pack)
+crc: the 32-bit CRC of the uncompressed data
+date & time: time stamp for the uncompressed file
+@end example
+
+The crc is given as ffffffff for a file not in gzip format.
+
+With @samp{--verbose}, the size totals and compression ratio for all files
+is also displayed, unless some sizes are unknown. With @samp{--quiet},
+the title and totals lines are not displayed.
+
+The @code{gzip} format represents the the input size modulo
+@math{2^32}, so the uncompressed size and compression ratio are listed
+incorrectly for uncompressed files 4 GB and larger. To work around
+this problem, you can use the following command to discover a large
+uncompressed file's true size:
+
+@example
+zcat file.gz | wc -c
+@end example
+
+@item --license
+@itemx -L
+Display the @code{gzip} license then quit.
+
+@item --no-name
+@itemx -n
+When compressing, do not save the original file name and time stamp by
+default. (The original name is always saved if the name had to be
+truncated.) When decompressing, do not restore the original file name
+if present (remove only the @code{gzip}
+suffix from the compressed file name) and do not restore the original
+time stamp if present (copy it from the compressed file). This option
+is the default when decompressing.
+
+@item --name
+@itemx -N
+When compressing, always save the original file name and time stamp; this
+is the default. When decompressing, restore the original file name and
+time stamp if present. This option is useful on systems which have
+a limit on file name length or when the time stamp has been lost after
+a file transfer.
+
+@item --quiet
+@itemx -q
+Suppress all warning messages.
+
+@item --recursive
+@itemx -r
+Travel the directory structure recursively. If any of the file names
+specified on the command line are directories, @code{gzip} will descend
+into the directory and compress all the files it finds there (or
+decompress them in the case of @code{gunzip}).
+
+@item --suffix @var{suf}
+@itemx -S @var{suf}
+Use suffix @samp{@var{suf}} instead of @samp{.gz}. Any suffix can be
+given, but suffixes other than @samp{.z} and @samp{.gz} should be
+avoided to avoid confusion when files are transferred to other systems.
+A null suffix forces gunzip to try decompression on all given files
+regardless of suffix, as in:
+
+@example
+gunzip -S "" * (*.* for MSDOS)
+@end example
+
+Previous versions of gzip used the @samp{.z} suffix. This was changed to
+avoid a conflict with @code{pack}.
+
+@item --test
+@itemx -t
+Test. Check the compressed file integrity.
+
+@item --verbose
+@itemx -v
+Verbose. Display the name and percentage reduction for each file compressed.
+
+@item --version
+@itemx -V
+Version. Display the version number and compilation options, then quit.
+
+@item --fast
+@itemx --best
+@itemx -@var{n}
+Regulate the speed of compression using the specified digit @var{n},
+where @samp{-1} or @samp{--fast} indicates the fastest compression
+method (less compression) and @samp{--best} or @samp{-9} indicates the
+slowest compression method (optimal compression). The default
+compression level is @samp{-6} (that is, biased towards high compression at
+expense of speed).
+@end table
+
+@node Advanced usage, Environment, Invoking gzip, Top
+@chapter Advanced usage
+@cindex concatenated files
+
+Multiple compressed files can be concatenated. In this case,
+@code{gunzip} will extract all members at once. If one member is
+damaged, other members might still be recovered after removal of the
+damaged member. Better compression can be usually obtained if all
+members are decompressed and then recompressed in a single step.
+
+This is an example of concatenating @code{gzip} files:
+
+@example
+gzip -c file1 > foo.gz
+gzip -c file2 >> foo.gz
+@end example
+
+Then
+
+@example
+gunzip -c foo
+@end example
+
+is equivalent to
+
+@example
+cat file1 file2
+@end example
+
+In case of damage to one member of a @samp{.gz} file, other members can
+still be recovered (if the damaged member is removed). However,
+you can get better compression by compressing all members at once:
+
+@example
+cat file1 file2 | gzip > foo.gz
+@end example
+
+compresses better than
+
+@example
+gzip -c file1 file2 > foo.gz
+@end example
+
+If you want to recompress concatenated files to get better compression, do:
+
+@example
+zcat old.gz | gzip > new.gz
+@end example
+
+If a compressed file consists of several members, the uncompressed
+size and CRC reported by the @samp{--list} option applies to the last member
+only. If you need the uncompressed size for all members, you can use:
+
+@example
+zcat file.gz | wc -c
+@end example
+
+If you wish to create a single archive file with multiple members so
+that members can later be extracted independently, use an archiver such
+as @code{tar} or @code{zip}. GNU @code{tar} supports the @samp{-z}
+option to invoke @code{gzip} transparently. @code{gzip} is designed as a
+complement to @code{tar}, not as a replacement.
+
+@node Environment, Tapes, Advanced usage, Top
+@chapter Environment
+@cindex Environment
+
+The environment variable @code{GZIP} can hold a set of default options for
+@code{gzip}. These options are interpreted first and can be overwritten by
+explicit command line parameters. For example:
+
+@example
+for sh: GZIP="-8v --name"; export GZIP
+for csh: setenv GZIP "-8v --name"
+for MSDOS: set GZIP=-8v --name
+@end example
+
+On Vax/VMS, the name of the environment variable is @code{GZIP_OPT}, to
+avoid a conflict with the symbol set for invocation of the program.
+
+@node Tapes, Problems, Environment, Top
+@chapter Using @code{gzip} on tapes
+@cindex tapes
+
+When writing compressed data to a tape, it is generally necessary to pad
+the output with zeroes up to a block boundary. When the data is read and
+the whole block is passed to @code{gunzip} for decompression,
+@code{gunzip} detects that there is extra trailing garbage after the
+compressed data and emits a warning by default if the garbage contains
+nonzero bytes. You have to use the
+@samp{--quiet} option to suppress the warning. This option can be set in the
+@code{GZIP} environment variable, as in:
+
+@example
+for sh: GZIP="-q" tar -xfz --block-compress /dev/rst0
+for csh: (setenv GZIP "-q"; tar -xfz --block-compress /dev/rst0)
+@end example
+
+In the above example, @code{gzip} is invoked implicitly by the @samp{-z}
+option of GNU @code{tar}. Make sure that the same block size (@samp{-b}
+option of @code{tar}) is used for reading and writing compressed data on
+tapes. (This example assumes you are using the GNU version of
+@code{tar}.)
+
+@node Problems, Concept Index, Tapes, Top
+@chapter Reporting Bugs
+@cindex bugs
+
+If you find a bug in @code{gzip}, please send electronic mail to
+@email{bug-gzip@@gnu.org}. Include the version number,
+which you can find by running @w{@samp{gzip -V}}. Also include in your
+message the hardware and operating system, the compiler used to compile
+@code{gzip},
+a description of the bug behavior, and the input to @code{gzip} that triggered
+the bug.@refill
+
+@node Concept Index, , Problems, Top
+@unnumbered Concept Index
+
+@printindex cp
+
+@contents
+@bye
--- /dev/null
+/* inflate.c -- Not copyrighted 1992 by Mark Adler
+ version c10p1, 10 January 1993 */
+
+/* You can do whatever you like with this source file, though I would
+ prefer that if you modify it and redistribute it that you include
+ comments to that effect with your name and the date. Thank you.
+ [The history has been moved to the file ChangeLog.]
+ */
+
+/*
+ Inflate deflated (PKZIP's method 8 compressed) data. The compression
+ method searches for as much of the current string of bytes (up to a
+ length of 258) in the previous 32K bytes. If it doesn't find any
+ matches (of at least length 3), it codes the next byte. Otherwise, it
+ codes the length of the matched string and its distance backwards from
+ the current position. There is a single Huffman code that codes both
+ single bytes (called "literals") and match lengths. A second Huffman
+ code codes the distance information, which follows a length code. Each
+ length or distance code actually represents a base value and a number
+ of "extra" (sometimes zero) bits to get to add to the base value. At
+ the end of each deflated block is a special end-of-block (EOB) literal/
+ length code. The decoding process is basically: get a literal/length
+ code; if EOB then done; if a literal, emit the decoded byte; if a
+ length then get the distance and emit the referred-to bytes from the
+ sliding window of previously emitted data.
+
+ There are (currently) three kinds of inflate blocks: stored, fixed, and
+ dynamic. The compressor deals with some chunk of data at a time, and
+ decides which method to use on a chunk-by-chunk basis. A chunk might
+ typically be 32K or 64K. If the chunk is uncompressible, then the
+ "stored" method is used. In this case, the bytes are simply stored as
+ is, eight bits per byte, with none of the above coding. The bytes are
+ preceded by a count, since there is no longer an EOB code.
+
+ If the data is compressible, then either the fixed or dynamic methods
+ are used. In the dynamic method, the compressed data is preceded by
+ an encoding of the literal/length and distance Huffman codes that are
+ to be used to decode this block. The representation is itself Huffman
+ coded, and so is preceded by a description of that code. These code
+ descriptions take up a little space, and so for small blocks, there is
+ a predefined set of codes, called the fixed codes. The fixed method is
+ used if the block codes up smaller that way (usually for quite small
+ chunks), otherwise the dynamic method is used. In the latter case, the
+ codes are customized to the probabilities in the current block, and so
+ can code it much better than the pre-determined fixed codes.
+
+ The Huffman codes themselves are decoded using a mutli-level table
+ lookup, in order to maximize the speed of decoding plus the speed of
+ building the decoding tables. See the comments below that precede the
+ lbits and dbits tuning parameters.
+ */
+
+
+/*
+ Notes beyond the 1.93a appnote.txt:
+
+ 1. Distance pointers never point before the beginning of the output
+ stream.
+ 2. Distance pointers can point back across blocks, up to 32k away.
+ 3. There is an implied maximum of 7 bits for the bit length table and
+ 15 bits for the actual data.
+ 4. If only one code exists, then it is encoded using one bit. (Zero
+ would be more efficient, but perhaps a little confusing.) If two
+ codes exist, they are coded using one bit each (0 and 1).
+ 5. There is no way of sending zero distance codes--a dummy must be
+ sent if there are none. (History: a pre 2.0 version of PKZIP would
+ store blocks with no distance codes, but this was discovered to be
+ too harsh a criterion.) Valid only for 1.93a. 2.04c does allow
+ zero distance codes, which is sent as one code of zero bits in
+ length.
+ 6. There are up to 286 literal/length codes. Code 256 represents the
+ end-of-block. Note however that the static length tree defines
+ 288 codes just to fill out the Huffman codes. Codes 286 and 287
+ cannot be used though, since there is no length base or extra bits
+ defined for them. Similarly, there are up to 30 distance codes.
+ However, static trees define 32 codes (all 5 bits) to fill out the
+ Huffman codes, but the last two had better not show up in the data.
+ 7. Unzip can check dynamic Huffman blocks for complete code sets.
+ The exception is that a single code would not be complete (see #4).
+ 8. The five bits following the block type is really the number of
+ literal codes sent minus 257.
+ 9. Length codes 8,16,16 are interpreted as 13 length codes of 8 bits
+ (1+6+6). Therefore, to output three times the length, you output
+ three codes (1+1+1), whereas to output four times the same length,
+ you only need two codes (1+3). Hmm.
+ 10. In the tree reconstruction algorithm, Code = Code + Increment
+ only if BitLength(i) is not zero. (Pretty obvious.)
+ 11. Correction: 4 Bits: # of Bit Length codes - 4 (4 - 19)
+ 12. Note: length code 284 can represent 227-258, but length code 285
+ really is 258. The last length deserves its own, short code
+ since it gets used a lot in very redundant files. The length
+ 258 is special since 258 - 3 (the min match length) is 255.
+ 13. The literal/length and distance code bit lengths are read as a
+ single stream of lengths. It is possible (and advantageous) for
+ a repeat code (16, 17, or 18) to go across the boundary between
+ the two sets of lengths.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: inflate.c,v 0.14 1993/06/10 13:27:04 jloup Exp $";
+#endif
+
+#include <config.h>
+#include "tailor.h"
+
+#if defined STDC_HEADERS || defined HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+
+#include "gzip.h"
+#define slide window
+
+/* Huffman code lookup table entry--this entry is four bytes for machines
+ that have 16-bit pointers (e.g. PC's in the small or medium model).
+ Valid extra bits are 0..13. e == 15 is EOB (end of block), e == 16
+ means that v is a literal, 16 < e < 32 means that v is a pointer to
+ the next table, which codes e - 16 bits, and lastly e == 99 indicates
+ an unused code. If a code with e == 99 is looked up, this implies an
+ error in the data. */
+struct huft {
+ uch e; /* number of extra bits or operation */
+ uch b; /* number of bits in this code or subcode */
+ union {
+ ush n; /* literal, length base, or distance base */
+ struct huft *t; /* pointer to next level of table */
+ } v;
+};
+
+
+/* Function prototypes */
+int huft_build OF((unsigned *, unsigned, unsigned, ush *, ush *,
+ struct huft **, int *));
+int huft_free OF((struct huft *));
+int inflate_codes OF((struct huft *, struct huft *, int, int));
+int inflate_stored OF((void));
+int inflate_fixed OF((void));
+int inflate_dynamic OF((void));
+int inflate_block OF((int *));
+int inflate OF((void));
+
+
+/* The inflate algorithm uses a sliding 32K byte window on the uncompressed
+ stream to find repeated byte strings. This is implemented here as a
+ circular buffer. The index is updated simply by incrementing and then
+ and'ing with 0x7fff (32K-1). */
+/* It is left to other modules to supply the 32K area. It is assumed
+ to be usable as if it were declared "uch slide[32768];" or as just
+ "uch *slide;" and then malloc'ed in the latter case. The definition
+ must be in unzip.h, included above. */
+/* unsigned wp; current position in slide */
+#define wp outcnt
+#define flush_output(w) (wp=(w),flush_window())
+
+/* Tables for deflate from PKZIP's appnote.txt. */
+static unsigned border[] = { /* Order of the bit length code lengths */
+ 16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15};
+static ush cplens[] = { /* Copy lengths for literal codes 257..285 */
+ 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
+ 35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0};
+ /* note: see note #13 above about the 258 in this list. */
+static ush cplext[] = { /* Extra bits for literal codes 257..285 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
+ 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, 99, 99}; /* 99==invalid */
+static ush cpdist[] = { /* Copy offsets for distance codes 0..29 */
+ 1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
+ 257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
+ 8193, 12289, 16385, 24577};
+static ush cpdext[] = { /* Extra bits for distance codes */
+ 0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
+ 7, 7, 8, 8, 9, 9, 10, 10, 11, 11,
+ 12, 12, 13, 13};
+
+
+
+/* Macros for inflate() bit peeking and grabbing.
+ The usage is:
+
+ NEEDBITS(j)
+ x = b & mask_bits[j];
+ DUMPBITS(j)
+
+ where NEEDBITS makes sure that b has at least j bits in it, and
+ DUMPBITS removes the bits from b. The macros use the variable k
+ for the number of bits in b. Normally, b and k are register
+ variables for speed, and are initialized at the beginning of a
+ routine that uses these macros from a global bit buffer and count.
+
+ If we assume that EOB will be the longest code, then we will never
+ ask for bits with NEEDBITS that are beyond the end of the stream.
+ So, NEEDBITS should not read any more bytes than are needed to
+ meet the request. Then no bytes need to be "returned" to the buffer
+ at the end of the last block.
+
+ However, this assumption is not true for fixed blocks--the EOB code
+ is 7 bits, but the other literal/length codes can be 8 or 9 bits.
+ (The EOB code is shorter than other codes because fixed blocks are
+ generally short. So, while a block always has an EOB, many other
+ literal/length codes have a significantly lower probability of
+ showing up at all.) However, by making the first table have a
+ lookup of seven bits, the EOB code will be found in that first
+ lookup, and so will not require that too many bits be pulled from
+ the stream.
+ */
+
+ulg bb; /* bit buffer */
+unsigned bk; /* bits in bit buffer */
+
+ush mask_bits[] = {
+ 0x0000,
+ 0x0001, 0x0003, 0x0007, 0x000f, 0x001f, 0x003f, 0x007f, 0x00ff,
+ 0x01ff, 0x03ff, 0x07ff, 0x0fff, 0x1fff, 0x3fff, 0x7fff, 0xffff
+};
+
+#ifdef CRYPT
+ uch cc;
+# define NEXTBYTE() \
+ (decrypt ? (cc = get_byte(), zdecode(cc), cc) : get_byte())
+#else
+# define NEXTBYTE() (uch)get_byte()
+#endif
+#define NEEDBITS(n) {while(k<(n)){b|=((ulg)NEXTBYTE())<<k;k+=8;}}
+#define DUMPBITS(n) {b>>=(n);k-=(n);}
+
+
+/*
+ Huffman code decoding is performed using a multi-level table lookup.
+ The fastest way to decode is to simply build a lookup table whose
+ size is determined by the longest code. However, the time it takes
+ to build this table can also be a factor if the data being decoded
+ is not very long. The most common codes are necessarily the
+ shortest codes, so those codes dominate the decoding time, and hence
+ the speed. The idea is you can have a shorter table that decodes the
+ shorter, more probable codes, and then point to subsidiary tables for
+ the longer codes. The time it costs to decode the longer codes is
+ then traded against the time it takes to make longer tables.
+
+ This results of this trade are in the variables lbits and dbits
+ below. lbits is the number of bits the first level table for literal/
+ length codes can decode in one step, and dbits is the same thing for
+ the distance codes. Subsequent tables are also less than or equal to
+ those sizes. These values may be adjusted either when all of the
+ codes are shorter than that, in which case the longest code length in
+ bits is used, or when the shortest code is *longer* than the requested
+ table size, in which case the length of the shortest code in bits is
+ used.
+
+ There are two different values for the two tables, since they code a
+ different number of possibilities each. The literal/length table
+ codes 286 possible values, or in a flat code, a little over eight
+ bits. The distance table codes 30 possible values, or a little less
+ than five bits, flat. The optimum values for speed end up being
+ about one bit more than those, so lbits is 8+1 and dbits is 5+1.
+ The optimum values may differ though from machine to machine, and
+ possibly even between compilers. Your mileage may vary.
+ */
+
+
+int lbits = 9; /* bits in base literal/length lookup table */
+int dbits = 6; /* bits in base distance lookup table */
+
+
+/* If BMAX needs to be larger than 16, then h and x[] should be ulg. */
+#define BMAX 16 /* maximum bit length of any code (16 for explode) */
+#define N_MAX 288 /* maximum number of codes in any set */
+
+
+unsigned hufts; /* track memory usage */
+
+
+int huft_build(b, n, s, d, e, t, m)
+unsigned *b; /* code lengths in bits (all assumed <= BMAX) */
+unsigned n; /* number of codes (assumed <= N_MAX) */
+unsigned s; /* number of simple-valued codes (0..s-1) */
+ush *d; /* list of base values for non-simple codes */
+ush *e; /* list of extra bits for non-simple codes */
+struct huft **t; /* result: starting table */
+int *m; /* maximum lookup bits, returns actual */
+/* Given a list of code lengths and a maximum table size, make a set of
+ tables to decode that set of codes. Return zero on success, one if
+ the given code set is incomplete (the tables are still built in this
+ case), two if the input is invalid (all zero length codes or an
+ oversubscribed set of lengths), and three if not enough memory. */
+{
+ unsigned a; /* counter for codes of length k */
+ unsigned c[BMAX+1]; /* bit length count table */
+ unsigned f; /* i repeats in table every f entries */
+ int g; /* maximum code length */
+ int h; /* table level */
+ register unsigned i; /* counter, current code */
+ register unsigned j; /* counter */
+ register int k; /* number of bits in current code */
+ int l; /* bits per table (returned in m) */
+ register unsigned *p; /* pointer into c[], b[], or v[] */
+ register struct huft *q; /* points to current table */
+ struct huft r; /* table entry for structure assignment */
+ struct huft *u[BMAX]; /* table stack */
+ unsigned v[N_MAX]; /* values in order of bit length */
+ register int w; /* bits before this table == (l * h) */
+ unsigned x[BMAX+1]; /* bit offsets, then code stack */
+ unsigned *xp; /* pointer into x */
+ int y; /* number of dummy codes added */
+ unsigned z; /* number of entries in current table */
+
+
+ /* Generate counts for each bit length */
+ memzero(c, sizeof(c));
+ p = b; i = n;
+ do {
+ Tracecv(*p, (stderr, (n-i >= ' ' && n-i <= '~' ? "%c %d\n" : "0x%x %d\n"),
+ n-i, *p));
+ c[*p]++; /* assume all entries <= BMAX */
+ p++; /* Can't combine with above line (Solaris bug) */
+ } while (--i);
+ if (c[0] == n) /* null input--all zero length codes */
+ {
+ *t = (struct huft *)NULL;
+ *m = 0;
+ return 0;
+ }
+
+
+ /* Find minimum and maximum length, bound *m by those */
+ l = *m;
+ for (j = 1; j <= BMAX; j++)
+ if (c[j])
+ break;
+ k = j; /* minimum code length */
+ if ((unsigned)l < j)
+ l = j;
+ for (i = BMAX; i; i--)
+ if (c[i])
+ break;
+ g = i; /* maximum code length */
+ if ((unsigned)l > i)
+ l = i;
+ *m = l;
+
+
+ /* Adjust last length count to fill out codes, if needed */
+ for (y = 1 << j; j < i; j++, y <<= 1)
+ if ((y -= c[j]) < 0)
+ return 2; /* bad input: more codes than bits */
+ if ((y -= c[i]) < 0)
+ return 2;
+ c[i] += y;
+
+
+ /* Generate starting offsets into the value table for each length */
+ x[1] = j = 0;
+ p = c + 1; xp = x + 2;
+ while (--i) { /* note that i == g from above */
+ *xp++ = (j += *p++);
+ }
+
+
+ /* Make a table of values in order of bit lengths */
+ p = b; i = 0;
+ do {
+ if ((j = *p++) != 0)
+ v[x[j]++] = i;
+ } while (++i < n);
+ n = x[g]; /* set n to length of v */
+
+
+ /* Generate the Huffman codes and for each, make the table entries */
+ x[0] = i = 0; /* first Huffman code is zero */
+ p = v; /* grab values in bit order */
+ h = -1; /* no tables yet--level -1 */
+ w = -l; /* bits decoded == (l * h) */
+ u[0] = (struct huft *)NULL; /* just to keep compilers happy */
+ q = (struct huft *)NULL; /* ditto */
+ z = 0; /* ditto */
+
+ /* go through the bit lengths (k already is bits in shortest code) */
+ for (; k <= g; k++)
+ {
+ a = c[k];
+ while (a--)
+ {
+ /* here i is the Huffman code of length k bits for value *p */
+ /* make tables up to required level */
+ while (k > w + l)
+ {
+ h++;
+ w += l; /* previous table always l bits */
+
+ /* compute minimum size table less than or equal to l bits */
+ z = (z = g - w) > (unsigned)l ? l : z; /* upper limit on table size */
+ if ((f = 1 << (j = k - w)) > a + 1) /* try a k-w bit table */
+ { /* too few codes for k-w bit table */
+ f -= a + 1; /* deduct codes from patterns left */
+ xp = c + k;
+ if (j < z)
+ while (++j < z) /* try smaller tables up to z bits */
+ {
+ if ((f <<= 1) <= *++xp)
+ break; /* enough codes to use up j bits */
+ f -= *xp; /* else deduct codes from patterns */
+ }
+ }
+ z = 1 << j; /* table entries for j-bit table */
+
+ /* allocate and link in new table */
+ if ((q = (struct huft *)malloc((z + 1)*sizeof(struct huft))) ==
+ (struct huft *)NULL)
+ {
+ if (h)
+ huft_free(u[0]);
+ return 3; /* not enough memory */
+ }
+ hufts += z + 1; /* track memory usage */
+ *t = q + 1; /* link to list for huft_free() */
+ *(t = &(q->v.t)) = (struct huft *)NULL;
+ u[h] = ++q; /* table starts after link */
+
+ /* connect to last table, if there is one */
+ if (h)
+ {
+ x[h] = i; /* save pattern for backing up */
+ r.b = (uch)l; /* bits to dump before this table */
+ r.e = (uch)(16 + j); /* bits in this table */
+ r.v.t = q; /* pointer to this table */
+ j = i >> (w - l); /* (get around Turbo C bug) */
+ u[h-1][j] = r; /* connect to last table */
+ }
+ }
+
+ /* set up table entry in r */
+ r.b = (uch)(k - w);
+ if (p >= v + n)
+ r.e = 99; /* out of values--invalid code */
+ else if (*p < s)
+ {
+ r.e = (uch)(*p < 256 ? 16 : 15); /* 256 is end-of-block code */
+ r.v.n = (ush)(*p); /* simple code is just the value */
+ p++; /* one compiler does not like *p++ */
+ }
+ else
+ {
+ r.e = (uch)e[*p - s]; /* non-simple--look up in lists */
+ r.v.n = d[*p++ - s];
+ }
+
+ /* fill code-like entries with r */
+ f = 1 << (k - w);
+ for (j = i >> w; j < z; j += f)
+ q[j] = r;
+
+ /* backwards increment the k-bit code i */
+ for (j = 1 << (k - 1); i & j; j >>= 1)
+ i ^= j;
+ i ^= j;
+
+ /* backup over finished tables */
+ while ((i & ((1 << w) - 1)) != x[h])
+ {
+ h--; /* don't need to update q */
+ w -= l;
+ }
+ }
+ }
+
+
+ /* Return true (1) if we were given an incomplete table */
+ return y != 0 && g != 1;
+}
+
+
+
+int huft_free(t)
+struct huft *t; /* table to free */
+/* Free the malloc'ed tables built by huft_build(), which makes a linked
+ list of the tables it made, with the links in a dummy first entry of
+ each table. */
+{
+ register struct huft *p, *q;
+
+
+ /* Go through linked list, freeing from the malloced (t[-1]) address. */
+ p = t;
+ while (p != (struct huft *)NULL)
+ {
+ q = (--p)->v.t;
+ free((char*)p);
+ p = q;
+ }
+ return 0;
+}
+
+
+int inflate_codes(tl, td, bl, bd)
+struct huft *tl, *td; /* literal/length and distance decoder tables */
+int bl, bd; /* number of bits decoded by tl[] and td[] */
+/* inflate (decompress) the codes in a deflated (compressed) block.
+ Return an error code or zero if it all goes ok. */
+{
+ register unsigned e; /* table entry flag/number of extra bits */
+ unsigned n, d; /* length and index for copy */
+ unsigned w; /* current window position */
+ struct huft *t; /* pointer to table entry */
+ unsigned ml, md; /* masks for bl and bd bits */
+ register ulg b; /* bit buffer */
+ register unsigned k; /* number of bits in bit buffer */
+
+
+ /* make local copies of globals */
+ b = bb; /* initialize bit buffer */
+ k = bk;
+ w = wp; /* initialize window position */
+
+ /* inflate the coded data */
+ ml = mask_bits[bl]; /* precompute masks for speed */
+ md = mask_bits[bd];
+ for (;;) /* do until end of block */
+ {
+ NEEDBITS((unsigned)bl)
+ if ((e = (t = tl + ((unsigned)b & ml))->e) > 16)
+ do {
+ if (e == 99)
+ return 1;
+ DUMPBITS(t->b)
+ e -= 16;
+ NEEDBITS(e)
+ } while ((e = (t = t->v.t + ((unsigned)b & mask_bits[e]))->e) > 16);
+ DUMPBITS(t->b)
+ if (e == 16) /* then it's a literal */
+ {
+ slide[w++] = (uch)t->v.n;
+ Tracevv((stderr, "%c", slide[w-1]));
+ if (w == WSIZE)
+ {
+ flush_output(w);
+ w = 0;
+ }
+ }
+ else /* it's an EOB or a length */
+ {
+ /* exit if end of block */
+ if (e == 15)
+ break;
+
+ /* get length of block to copy */
+ NEEDBITS(e)
+ n = t->v.n + ((unsigned)b & mask_bits[e]);
+ DUMPBITS(e);
+
+ /* decode distance of block to copy */
+ NEEDBITS((unsigned)bd)
+ if ((e = (t = td + ((unsigned)b & md))->e) > 16)
+ do {
+ if (e == 99)
+ return 1;
+ DUMPBITS(t->b)
+ e -= 16;
+ NEEDBITS(e)
+ } while ((e = (t = t->v.t + ((unsigned)b & mask_bits[e]))->e) > 16);
+ DUMPBITS(t->b)
+ NEEDBITS(e)
+ d = w - t->v.n - ((unsigned)b & mask_bits[e]);
+ DUMPBITS(e)
+ Tracevv((stderr,"\\[%d,%d]", w-d, n));
+
+ /* do the copy */
+ do {
+ n -= (e = (e = WSIZE - ((d &= WSIZE-1) > w ? d : w)) > n ? n : e);
+#if !defined(NOMEMCPY) && !defined(DEBUG)
+ if (w - d >= e) /* (this test assumes unsigned comparison) */
+ {
+ memcpy(slide + w, slide + d, e);
+ w += e;
+ d += e;
+ }
+ else /* do it slow to avoid memcpy() overlap */
+#endif /* !NOMEMCPY */
+ do {
+ slide[w++] = slide[d++];
+ Tracevv((stderr, "%c", slide[w-1]));
+ } while (--e);
+ if (w == WSIZE)
+ {
+ flush_output(w);
+ w = 0;
+ }
+ } while (n);
+ }
+ }
+
+
+ /* restore the globals from the locals */
+ wp = w; /* restore global window pointer */
+ bb = b; /* restore global bit buffer */
+ bk = k;
+
+ /* done */
+ return 0;
+}
+
+
+
+int inflate_stored()
+/* "decompress" an inflated type 0 (stored) block. */
+{
+ unsigned n; /* number of bytes in block */
+ unsigned w; /* current window position */
+ register ulg b; /* bit buffer */
+ register unsigned k; /* number of bits in bit buffer */
+
+
+ /* make local copies of globals */
+ b = bb; /* initialize bit buffer */
+ k = bk;
+ w = wp; /* initialize window position */
+
+
+ /* go to byte boundary */
+ n = k & 7;
+ DUMPBITS(n);
+
+
+ /* get the length and its complement */
+ NEEDBITS(16)
+ n = ((unsigned)b & 0xffff);
+ DUMPBITS(16)
+ NEEDBITS(16)
+ if (n != (unsigned)((~b) & 0xffff))
+ return 1; /* error in compressed data */
+ DUMPBITS(16)
+
+
+ /* read and output the compressed data */
+ while (n--)
+ {
+ NEEDBITS(8)
+ slide[w++] = (uch)b;
+ if (w == WSIZE)
+ {
+ flush_output(w);
+ w = 0;
+ }
+ DUMPBITS(8)
+ }
+
+
+ /* restore the globals from the locals */
+ wp = w; /* restore global window pointer */
+ bb = b; /* restore global bit buffer */
+ bk = k;
+ return 0;
+}
+
+
+
+int inflate_fixed()
+/* decompress an inflated type 1 (fixed Huffman codes) block. We should
+ either replace this with a custom decoder, or at least precompute the
+ Huffman tables. */
+{
+ int i; /* temporary variable */
+ struct huft *tl; /* literal/length code table */
+ struct huft *td; /* distance code table */
+ int bl; /* lookup bits for tl */
+ int bd; /* lookup bits for td */
+ unsigned l[288]; /* length list for huft_build */
+
+
+ /* set up literal table */
+ for (i = 0; i < 144; i++)
+ l[i] = 8;
+ for (; i < 256; i++)
+ l[i] = 9;
+ for (; i < 280; i++)
+ l[i] = 7;
+ for (; i < 288; i++) /* make a complete, but wrong code set */
+ l[i] = 8;
+ bl = 7;
+ if ((i = huft_build(l, 288, 257, cplens, cplext, &tl, &bl)) != 0)
+ return i;
+
+
+ /* set up distance table */
+ for (i = 0; i < 30; i++) /* make an incomplete code set */
+ l[i] = 5;
+ bd = 5;
+ if ((i = huft_build(l, 30, 0, cpdist, cpdext, &td, &bd)) > 1)
+ {
+ huft_free(tl);
+ return i;
+ }
+
+
+ /* decompress until an end-of-block code */
+ if (inflate_codes(tl, td, bl, bd))
+ return 1;
+
+
+ /* free the decoding tables, return */
+ huft_free(tl);
+ huft_free(td);
+ return 0;
+}
+
+
+
+int inflate_dynamic()
+/* decompress an inflated type 2 (dynamic Huffman codes) block. */
+{
+ int i; /* temporary variables */
+ unsigned j;
+ unsigned l; /* last length */
+ unsigned m; /* mask for bit lengths table */
+ unsigned n; /* number of lengths to get */
+ struct huft *tl; /* literal/length code table */
+ struct huft *td; /* distance code table */
+ int bl; /* lookup bits for tl */
+ int bd; /* lookup bits for td */
+ unsigned nb; /* number of bit length codes */
+ unsigned nl; /* number of literal/length codes */
+ unsigned nd; /* number of distance codes */
+#ifdef PKZIP_BUG_WORKAROUND
+ unsigned ll[288+32]; /* literal/length and distance code lengths */
+#else
+ unsigned ll[286+30]; /* literal/length and distance code lengths */
+#endif
+ register ulg b; /* bit buffer */
+ register unsigned k; /* number of bits in bit buffer */
+
+
+ /* make local bit buffer */
+ b = bb;
+ k = bk;
+
+
+ /* read in table lengths */
+ NEEDBITS(5)
+ nl = 257 + ((unsigned)b & 0x1f); /* number of literal/length codes */
+ DUMPBITS(5)
+ NEEDBITS(5)
+ nd = 1 + ((unsigned)b & 0x1f); /* number of distance codes */
+ DUMPBITS(5)
+ NEEDBITS(4)
+ nb = 4 + ((unsigned)b & 0xf); /* number of bit length codes */
+ DUMPBITS(4)
+#ifdef PKZIP_BUG_WORKAROUND
+ if (nl > 288 || nd > 32)
+#else
+ if (nl > 286 || nd > 30)
+#endif
+ return 1; /* bad lengths */
+
+
+ /* read in bit-length-code lengths */
+ for (j = 0; j < nb; j++)
+ {
+ NEEDBITS(3)
+ ll[border[j]] = (unsigned)b & 7;
+ DUMPBITS(3)
+ }
+ for (; j < 19; j++)
+ ll[border[j]] = 0;
+
+
+ /* build decoding table for trees--single level, 7 bit lookup */
+ bl = 7;
+ if ((i = huft_build(ll, 19, 19, NULL, NULL, &tl, &bl)) != 0)
+ {
+ if (i == 1)
+ huft_free(tl);
+ return i; /* incomplete code set */
+ }
+
+ if (tl == NULL) /* Grrrhhh */
+ return 2;
+
+ /* read in literal and distance code lengths */
+ n = nl + nd;
+ m = mask_bits[bl];
+ i = l = 0;
+ while ((unsigned)i < n)
+ {
+ NEEDBITS((unsigned)bl)
+ j = (td = tl + ((unsigned)b & m))->b;
+ DUMPBITS(j)
+ j = td->v.n;
+ if (j < 16) /* length of code in bits (0..15) */
+ ll[i++] = l = j; /* save last length in l */
+ else if (j == 16) /* repeat last length 3 to 6 times */
+ {
+ NEEDBITS(2)
+ j = 3 + ((unsigned)b & 3);
+ DUMPBITS(2)
+ if ((unsigned)i + j > n)
+ return 1;
+ while (j--)
+ ll[i++] = l;
+ }
+ else if (j == 17) /* 3 to 10 zero length codes */
+ {
+ NEEDBITS(3)
+ j = 3 + ((unsigned)b & 7);
+ DUMPBITS(3)
+ if ((unsigned)i + j > n)
+ return 1;
+ while (j--)
+ ll[i++] = 0;
+ l = 0;
+ }
+ else /* j == 18: 11 to 138 zero length codes */
+ {
+ NEEDBITS(7)
+ j = 11 + ((unsigned)b & 0x7f);
+ DUMPBITS(7)
+ if ((unsigned)i + j > n)
+ return 1;
+ while (j--)
+ ll[i++] = 0;
+ l = 0;
+ }
+ }
+
+
+ /* free decoding table for trees */
+ huft_free(tl);
+
+
+ /* restore the global bit buffer */
+ bb = b;
+ bk = k;
+
+
+ /* build the decoding tables for literal/length and distance codes */
+ bl = lbits;
+ if ((i = huft_build(ll, nl, 257, cplens, cplext, &tl, &bl)) != 0)
+ {
+ if (i == 1) {
+ fprintf(stderr, " incomplete literal tree\n");
+ huft_free(tl);
+ }
+ return i; /* incomplete code set */
+ }
+ bd = dbits;
+ if ((i = huft_build(ll + nl, nd, 0, cpdist, cpdext, &td, &bd)) != 0)
+ {
+ if (i == 1) {
+ fprintf(stderr, " incomplete distance tree\n");
+#ifdef PKZIP_BUG_WORKAROUND
+ i = 0;
+ }
+#else
+ huft_free(td);
+ }
+ huft_free(tl);
+ return i; /* incomplete code set */
+#endif
+ }
+
+
+ /* decompress until an end-of-block code */
+ if (inflate_codes(tl, td, bl, bd))
+ return 1;
+
+
+ /* free the decoding tables, return */
+ huft_free(tl);
+ huft_free(td);
+ return 0;
+}
+
+
+
+int inflate_block(e)
+int *e; /* last block flag */
+/* decompress an inflated block */
+{
+ unsigned t; /* block type */
+ register ulg b; /* bit buffer */
+ register unsigned k; /* number of bits in bit buffer */
+
+
+ /* make local bit buffer */
+ b = bb;
+ k = bk;
+
+
+ /* read in last block bit */
+ NEEDBITS(1)
+ *e = (int)b & 1;
+ DUMPBITS(1)
+
+
+ /* read in block type */
+ NEEDBITS(2)
+ t = (unsigned)b & 3;
+ DUMPBITS(2)
+
+
+ /* restore the global bit buffer */
+ bb = b;
+ bk = k;
+
+
+ /* inflate that block type */
+ if (t == 2)
+ return inflate_dynamic();
+ if (t == 0)
+ return inflate_stored();
+ if (t == 1)
+ return inflate_fixed();
+
+
+ /* bad block type */
+ return 2;
+}
+
+
+
+int inflate()
+/* decompress an inflated entry */
+{
+ int e; /* last block flag */
+ int r; /* result code */
+ unsigned h; /* maximum struct huft's malloc'ed */
+
+
+ /* initialize window, bit buffer */
+ wp = 0;
+ bk = 0;
+ bb = 0;
+
+
+ /* decompress until the last block */
+ h = 0;
+ do {
+ hufts = 0;
+ if ((r = inflate_block(&e)) != 0)
+ return r;
+ if (hufts > h)
+ h = hufts;
+ } while (!e);
+
+ /* Undo too much lookahead. The next read will be byte aligned so we
+ * can discard unused bits in the last meaningful byte.
+ */
+ while (bk >= 8) {
+ bk -= 8;
+ inptr--;
+ }
+
+ /* flush out slide */
+ flush_output(wp);
+
+
+ /* return success */
+#ifdef DEBUG
+ fprintf(stderr, "<%u> ", h);
+#endif /* DEBUG */
+ return 0;
+}
--- /dev/null
+#!/bin/sh
+#
+# install - install a program, script, or datafile
+# This comes from X11R5 (mit/util/scripts/install.sh).
+#
+# Copyright 1991 by the Massachusetts Institute of Technology
+#
+# Permission to use, copy, modify, distribute, and sell this software and its
+# documentation for any purpose is hereby granted without fee, provided that
+# the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of M.I.T. not be used in advertising or
+# publicity pertaining to distribution of the software without specific,
+# written prior permission. M.I.T. makes no representations about the
+# suitability of this software for any purpose. It is provided "as is"
+# without express or implied warranty.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# `make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch. It can only install one file at a time, a restriction
+# shared with many OS's install programs.
+
+
+# set DOITPROG to echo to test this script
+
+# Don't use :- since 4.3BSD and earlier shells don't like it.
+doit="${DOITPROG-}"
+
+
+# put in absolute paths if you don't have them in your path; or use env. vars.
+
+mvprog="${MVPROG-mv}"
+cpprog="${CPPROG-cp}"
+chmodprog="${CHMODPROG-chmod}"
+chownprog="${CHOWNPROG-chown}"
+chgrpprog="${CHGRPPROG-chgrp}"
+stripprog="${STRIPPROG-strip}"
+rmprog="${RMPROG-rm}"
+mkdirprog="${MKDIRPROG-mkdir}"
+
+transformbasename=""
+transform_arg=""
+instcmd="$mvprog"
+chmodcmd="$chmodprog 0755"
+chowncmd=""
+chgrpcmd=""
+stripcmd=""
+rmcmd="$rmprog -f"
+mvcmd="$mvprog"
+src=""
+dst=""
+dir_arg=""
+
+while [ x"$1" != x ]; do
+ case "$1" in
+ -c) instcmd=$cpprog
+ shift
+ continue;;
+
+ -d) dir_arg=true
+ shift
+ continue;;
+
+ -m) chmodcmd="$chmodprog $2"
+ shift
+ shift
+ continue;;
+
+ -o) chowncmd="$chownprog $2"
+ shift
+ shift
+ continue;;
+
+ -g) chgrpcmd="$chgrpprog $2"
+ shift
+ shift
+ continue;;
+
+ -s) stripcmd=$stripprog
+ shift
+ continue;;
+
+ -t=*) transformarg=`echo $1 | sed 's/-t=//'`
+ shift
+ continue;;
+
+ -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
+ shift
+ continue;;
+
+ *) if [ x"$src" = x ]
+ then
+ src=$1
+ else
+ # this colon is to work around a 386BSD /bin/sh bug
+ :
+ dst=$1
+ fi
+ shift
+ continue;;
+ esac
+done
+
+if [ x"$src" = x ]
+then
+ echo "install: no input file specified" >&2
+ exit 1
+else
+ true
+fi
+
+if [ x"$dir_arg" != x ]; then
+ dst=$src
+ src=""
+
+ if [ -d "$dst" ]; then
+ instcmd=:
+ chmodcmd=""
+ else
+ instcmd=$mkdirprog
+ fi
+else
+
+# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
+# might cause directories to be created, which would be especially bad
+# if $src (and thus $dsttmp) contains '*'.
+
+ if [ -f "$src" -o -d "$src" ]
+ then
+ true
+ else
+ echo "install: $src does not exist" >&2
+ exit 1
+ fi
+
+ if [ x"$dst" = x ]
+ then
+ echo "install: no destination specified" >&2
+ exit 1
+ else
+ true
+ fi
+
+# If destination is a directory, append the input filename; if your system
+# does not like double slashes in filenames, you may need to add some logic
+
+ if [ -d "$dst" ]
+ then
+ dst=$dst/`basename "$src"`
+ else
+ true
+ fi
+fi
+
+## this sed command emulates the dirname command
+dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
+
+# Make sure that the destination directory exists.
+# this part is taken from Noah Friedman's mkinstalldirs script
+
+# Skip lots of stat calls in the usual case.
+if [ ! -d "$dstdir" ]; then
+defaultIFS='
+ '
+IFS="${IFS-$defaultIFS}"
+
+oIFS=$IFS
+# Some sh's can't handle IFS=/ for some reason.
+IFS='%'
+set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
+IFS=$oIFS
+
+pathcomp=''
+
+while [ $# -ne 0 ] ; do
+ pathcomp=$pathcomp$1
+ shift
+
+ if [ ! -d "$pathcomp" ] ;
+ then
+ $mkdirprog "$pathcomp"
+ else
+ true
+ fi
+
+ pathcomp=$pathcomp/
+done
+fi
+
+if [ x"$dir_arg" != x ]
+then
+ $doit $instcmd "$dst" &&
+
+ if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else true ; fi &&
+ if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else true ; fi &&
+ if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else true ; fi &&
+ if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else true ; fi
+else
+
+# If we're going to rename the final executable, determine the name now.
+
+ if [ x"$transformarg" = x ]
+ then
+ dstfile=`basename "$dst"`
+ else
+ dstfile=`basename "$dst" $transformbasename |
+ sed $transformarg`$transformbasename
+ fi
+
+# don't allow the sed command to completely eliminate the filename
+
+ if [ x"$dstfile" = x ]
+ then
+ dstfile=`basename "$dst"`
+ else
+ true
+ fi
+
+# Make a couple of temp file names in the proper directory.
+
+ dsttmp=$dstdir/#inst.$$#
+ rmtmp=$dstdir/#rm.$$#
+
+# Trap to clean up temp files at exit.
+
+ trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
+ trap '(exit $?); exit' 1 2 13 15
+
+# Move or copy the file name to the temp name
+
+ $doit $instcmd $src "$dsttmp" &&
+
+# and set any options; do chmod last to preserve setuid bits
+
+# If any of these fail, we abort the whole thing. If we want to
+# ignore errors from any of these, just make sure not to ignore
+# errors from the above "$doit $instcmd $src $dsttmp" command.
+
+ if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp";else true;fi &&
+ if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp";else true;fi &&
+ if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp";else true;fi &&
+ if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp";else true;fi &&
+
+# Now remove or move any old file at destination location. We try this
+# two ways since rm can't unlink itself on some systems and the destination
+# file might be busy for other reasons. In this case, the final cleanup
+# might fail but the new file should still install successfully.
+
+{
+ if [ -f "$dstdir/$dstfile" ]
+ then
+ $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
+ $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
+ {
+ echo "install: cannot unlink or rename $dstdir/$dstfile" >&2
+ (exit 1); exit
+ }
+ else
+ true
+ fi
+} &&
+
+# Now rename the file to the real destination.
+
+ $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
+
+fi &&
+
+# The final little trick to "correctly" pass the exit status to the exit trap.
+
+{
+ (exit 0); exit
+}
--- /dev/null
+/* lzw.c -- compress files in LZW format.
+ * This is a dummy version avoiding patent problems.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: lzw.c,v 0.9 1993/06/10 13:27:31 jloup Exp $";
+#endif
+
+#include <config.h>
+#include "tailor.h"
+#include "gzip.h"
+#include "lzw.h"
+
+static int msg_done = 0;
+
+/* Compress in to out with lzw method. */
+int lzw(in, out)
+ int in, out;
+{
+ if (msg_done) return ERROR;
+ msg_done = 1;
+ fprintf(stderr,"output in compress .Z format not supported\n");
+ if (in != out) { /* avoid warnings on unused variables */
+ exit_code = ERROR;
+ }
+ return ERROR;
+}
--- /dev/null
+/* lzw.h -- define the lzw functions.
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#if !defined(OF) && defined(lint)
+# include "gzip.h"
+#endif
+
+#ifndef BITS
+# define BITS 16
+#endif
+#define INIT_BITS 9 /* Initial number of bits per code */
+
+#define LZW_MAGIC "\037\235" /* Magic header for lzw files, 1F 9D */
+
+#define BIT_MASK 0x1f /* Mask for 'number of compression bits' */
+/* Mask 0x20 is reserved to mean a fourth header byte, and 0x40 is free.
+ * It's a pity that old uncompress does not check bit 0x20. That makes
+ * extension of the format actually undesirable because old compress
+ * would just crash on the new format instead of giving a meaningful
+ * error message. It does check the number of bits, but it's more
+ * helpful to say "unsupported format, get a new version" than
+ * "can only handle 16 bits".
+ */
+
+#define BLOCK_MODE 0x80
+/* Block compression: if table is full and compression rate is dropping,
+ * clear the dictionary.
+ */
+
+#define LZW_RESERVED 0x60 /* reserved bits */
+
+#define CLEAR 256 /* flush the dictionary */
+#define FIRST (CLEAR+1) /* first free entry */
+
+extern int maxbits; /* max bits per code for LZW */
+extern int block_mode; /* block compress mode -C compatible with 2.0 */
+
+extern int lzw OF((int in, int out));
+extern int unlzw OF((int in, int out));
--- /dev/null
+#serial 4
+
+# AC_PROG_SHELL
+# -------------
+# Check for a working (i.e. POSIX-compatible) shell.
+# Written by Paul Eggert <eggert@twinsun.com>,
+# from an idea suggested by Albert Chin-A-Young <china@thewrittenword.com>.
+AC_DEFUN([AC_PROG_SHELL],
+ [AC_MSG_CHECKING([for a POSIX-compliant shell])
+ AC_CACHE_VAL(ac_cv_path_shell,
+ [ac_command='
+ # Test the noclobber option, using the portable POSIX.2 syntax.
+ set -C
+ rm -f conftest.c
+ >conftest.c || exit
+ >|conftest.c || exit
+ !>conftest.c || exit
+ '
+ ac_cv_path_shell=no
+
+ case $SHELL in
+ /*)
+ rm -f conftest.c
+ if ("$SHELL" -c "$ac_command") 2>/dev/null; then
+ ac_cv_path_shell=$SHELL
+ fi;;
+ esac
+
+ case $ac_cv_path_shell in
+ no)
+ # Prefer shells that are more likely to be installed in the
+ # same place on all hosts of this platform. Therefore, prefer
+ # shells in /bin and /usr/bin to shells in the installer's
+ # PATH. Also, loop through PATH first and then through
+ # shells, since less-"nice" shells in /bin and /usr/bin are
+ # more likely to be installed than "nicer" shells elsewhere.
+ as_save_IFS=$IFS; IFS=:
+ for as_dir in /bin /usr/bin $PATH
+ do
+ IFS=$as_save_IFS
+ case $as_dir in
+ /*)
+ for ac_base in sh bash ksh sh5; do
+ rm -f conftest.c
+ if ("$as_dir/$ac_base" -c "$ac_command") 2>/dev/null; then
+ ac_cv_path_shell=$as_dir/$ac_base
+ break
+ fi
+ done
+ case $ac_cv_path_shell in
+ /*) break;;
+ esac;;
+ esac
+ done
+ rm -f conftest.c;;
+ esac])
+ AC_MSG_RESULT($ac_cv_path_shell)
+ SHELL=$ac_cv_path_shell
+ if test "$SHELL" = no; then
+ SHELL=/bin/sh
+ AC_MSG_WARN([using $SHELL, even though it does not conform to POSIX])
+ fi
+ AC_SUBST(SHELL)])
--- /dev/null
+/* match.s -- optional optimized asm version of longest match in deflate.c
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ *
+ * The 68020 version has been written by Francesco Potorti` <pot@cnuce.cnr.it>
+ * with adaptations by Carsten Steger <stegerc@informatik.tu-muenchen.de>,
+ * Andreas Schwab <schwab@lamothe.informatik.uni-dortmund.de> and
+ * Kristoffer Eriksson <ske@pkmab.se>
+ */
+
+/* $Id: match.S,v 0.14 1993/06/11 18:33:24 jloup Exp $ */
+
+/* Preprocess with -DNO_UNDERLINE if your C compiler does not prefix
+ * external symbols with an underline character '_'.
+ */
+#ifdef NO_UNDERLINE
+# define _prev prev
+# define _window window
+# define _match_start match_start
+# define _prev_length prev_length
+# define _good_match good_match
+# define _nice_match nice_match
+# define _strstart strstart
+# define _max_chain_length max_chain_length
+
+# define _match_init match_init
+# define _longest_match longest_match
+#endif
+
+#ifdef DYN_ALLOC
+ error: DYN_ALLOC not yet supported in match.s
+#endif
+
+#if defined(i386) || defined(_I386)
+
+/* This version is for 386 Unix or OS/2 in 32 bit mode.
+ * Warning: it uses the AT&T syntax: mov source,dest
+ * This file is only optional. If you want to force the C version,
+ * add -DNO_ASM to CFLAGS in Makefile and set OBJA to an empty string.
+ * If you have reduced WSIZE in gzip.h, then change its value below.
+ * This version assumes static allocation of the arrays (-DDYN_ALLOC not used).
+ */
+
+ .file "match.S"
+
+#define MAX_MATCH 258
+#define MAX_MATCH2 $128 /* MAX_MATCH/2-1 */
+#define MIN_MATCH 3
+#define WSIZE $32768
+#define MAX_DIST WSIZE - MAX_MATCH - MIN_MATCH - 1
+
+ .globl _match_init
+ .globl _longest_match
+
+ .text
+
+_match_init:
+ ret
+
+/*-----------------------------------------------------------------------
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ */
+
+_longest_match: /* int longest_match(cur_match) */
+
+#define cur_match 20(%esp)
+ /* return address */ /* esp+16 */
+ push %ebp /* esp+12 */
+ push %edi /* esp+8 */
+ push %esi /* esp+4 */
+ push %ebx /* esp */
+
+/*
+ * match equ esi
+ * scan equ edi
+ * chain_length equ ebp
+ * best_len equ ebx
+ * limit equ edx
+ */
+ mov cur_match,%esi
+ mov _max_chain_length,%ebp /* chain_length = max_chain_length */
+ mov _strstart,%edi
+ mov %edi,%edx
+ sub MAX_DIST,%edx /* limit = strstart-MAX_DIST */
+ jae limit_ok
+ sub %edx,%edx /* limit = NIL */
+limit_ok:
+ add $2+_window,%edi /* edi = offset(window+strstart+2) */
+ mov _prev_length,%ebx /* best_len = prev_length */
+ movw -3(%ebx,%edi),%ax /* ax = scan[best_len-1..best_len] */
+ movw -2(%edi),%cx /* cx = scan[0..1] */
+ cmp _good_match,%ebx /* do we have a good match already? */
+ jb do_scan
+ shr $2,%ebp /* chain_length >>= 2 */
+ jmp do_scan
+
+ .align 4
+long_loop:
+/* at this point, edi == scan+2, esi == cur_match */
+ movw -3(%ebx,%edi),%ax /* ax = scan[best_len-1..best_len] */
+ movw -2(%edi),%cx /* cx = scan[0..1] */
+short_loop:
+/*
+ * at this point, di == scan+2, si == cur_match,
+ * ax = scan[best_len-1..best_len] and cx = scan[0..1]
+ */
+ and WSIZE-1, %esi
+ movw _prev(%esi,%esi),%si /* cur_match = prev[cur_match] */
+ /* top word of esi is still 0 */
+ cmp %edx,%esi /* cur_match <= limit ? */
+ jbe the_end
+ dec %ebp /* --chain_length */
+ jz the_end
+do_scan:
+ cmpw _window-1(%ebx,%esi),%ax/* check match at best_len-1 */
+ jne short_loop
+ cmpw _window(%esi),%cx /* check min_match_length match */
+ jne short_loop
+
+ lea _window+2(%esi),%esi /* si = match */
+ mov %edi,%eax /* ax = scan+2 */
+ mov MAX_MATCH2,%ecx /* scan for at most MAX_MATCH bytes */
+ rep; cmpsw /* loop until mismatch */
+ je maxmatch /* match of length MAX_MATCH? */
+mismatch:
+ movb -2(%edi),%cl /* mismatch on first or second byte? */
+ subb -2(%esi),%cl /* cl = 0 if first bytes equal */
+ xchg %edi,%eax /* edi = scan+2, eax = end of scan */
+ sub %edi,%eax /* eax = len */
+ sub %eax,%esi /* esi = cur_match + 2 + offset(window) */
+ sub $2+_window,%esi /* esi = cur_match */
+ subb $1,%cl /* set carry if cl == 0 (cannot use DEC) */
+ adc $0,%eax /* eax = carry ? len+1 : len */
+ cmp %ebx,%eax /* len > best_len ? */
+ jle long_loop
+ mov %esi,_match_start /* match_start = cur_match */
+ mov %eax,%ebx /* ebx = best_len = len */
+ cmp _nice_match,%eax /* len >= nice_match ? */
+ jl long_loop
+the_end:
+ mov %ebx,%eax /* result = eax = best_len */
+ pop %ebx
+ pop %esi
+ pop %edi
+ pop %ebp
+ ret
+maxmatch:
+ cmpsb
+ jmp mismatch
+
+#else
+
+/* ======================== 680x0 version ================================= */
+
+#if defined(m68k)||defined(mc68k)||defined(__mc68000__)||defined(__MC68000__)
+# ifndef mc68000
+# define mc68000
+# endif
+#endif
+
+#if defined(__mc68020__) || defined(__MC68020__) || defined(sysV68)
+# ifndef mc68020
+# define mc68020
+# endif
+#endif
+
+#if defined(mc68020) || defined(mc68000)
+
+#if (defined(mc68020) || defined(NeXT)) && !defined(UNALIGNED_OK)
+# define UNALIGNED_OK
+#endif
+
+#ifdef sysV68 /* Try Motorola Delta style */
+
+# define GLOBAL(symbol) global symbol
+# define TEXT text
+# define FILE(filename) file filename
+# define invert_maybe(src,dst) dst,src
+# define imm(data) &data
+# define reg(register) %register
+
+# define addl add.l
+# define addql addq.l
+# define blos blo.b
+# define bhis bhi.b
+# define bras bra.b
+# define clrl clr.l
+# define cmpmb cmpm.b
+# define cmpw cmp.w
+# define cmpl cmp.l
+# define lslw lsl.w
+# define lsrl lsr.l
+# define movel move.l
+# define movew move.w
+# define moveb move.b
+# define moveml movem.l
+# define subl sub.l
+# define subw sub.w
+# define subql subq.l
+
+# define IndBase(bd,An) (bd,An)
+# define IndBaseNdxl(bd,An,Xn) (bd,An,Xn.l)
+# define IndBaseNdxw(bd,An,Xn) (bd,An,Xn.w)
+# define predec(An) -(An)
+# define postinc(An) (An)+
+
+#else /* default style (Sun 3, NeXT, Amiga, Atari) */
+
+# define GLOBAL(symbol) .globl symbol
+# define TEXT .text
+# define FILE(filename) .even
+# define invert_maybe(src,dst) src,dst
+# if defined(sun) || defined(mc68k)
+# define imm(data) #data
+# else
+# define imm(data) \#data
+# endif
+# define reg(register) register
+
+# define blos bcss
+# if defined(sun) || defined(mc68k)
+# define movel movl
+# define movew movw
+# define moveb movb
+# endif
+# define IndBase(bd,An) An@(bd)
+# define IndBaseNdxl(bd,An,Xn) An@(bd,Xn:l)
+# define IndBaseNdxw(bd,An,Xn) An@(bd,Xn:w)
+# define predec(An) An@-
+# define postinc(An) An@+
+
+#endif /* styles */
+
+#define Best_Len reg(d0) /* unsigned */
+#define Cur_Match reg(d1) /* Ipos */
+#define Loop_Counter reg(d2) /* int */
+#define Scan_Start reg(d3) /* unsigned short */
+#define Scan_End reg(d4) /* unsigned short */
+#define Limit reg(d5) /* IPos */
+#define Chain_Length reg(d6) /* unsigned */
+#define Scan_Test reg(d7)
+#define Scan reg(a0) /* *uch */
+#define Match reg(a1) /* *uch */
+#define Prev_Address reg(a2) /* *Pos */
+#define Scan_Ini reg(a3) /* *uch */
+#define Match_Ini reg(a4) /* *uch */
+#define Stack_Pointer reg(sp)
+
+#define MAX_MATCH 258
+#define MIN_MATCH 3
+#define WSIZE 32768
+#define MAX_DIST (WSIZE - MAX_MATCH - MIN_MATCH - 1)
+
+ GLOBAL (_match_init)
+ GLOBAL (_longest_match)
+
+ TEXT
+
+ FILE ("match.S")
+
+_match_init:
+ rts
+
+/*-----------------------------------------------------------------------
+ * Set match_start to the longest match starting at the given string and
+ * return its length. Matches shorter or equal to prev_length are discarded,
+ * in which case the result is equal to prev_length and match_start is
+ * garbage.
+ * IN assertions: cur_match is the head of the hash chain for the current
+ * string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+ */
+
+/* int longest_match (cur_match) */
+
+#ifdef UNALIGNED_OK
+# define pushreg 15928 /* d2-d6/a2-a4 */
+# define popreg 7292
+#else
+# define pushreg 16184 /* d2-d7/a2-a4 */
+# define popreg 7420
+#endif
+
+_longest_match:
+ movel IndBase(4,Stack_Pointer),Cur_Match
+ moveml imm(pushreg),predec(Stack_Pointer)
+ movel _max_chain_length,Chain_Length
+ movel _prev_length,Best_Len
+ movel imm(_prev),Prev_Address
+ movel imm(_window+MIN_MATCH),Match_Ini
+ movel _strstart,Limit
+ movel Match_Ini,Scan_Ini
+ addl Limit,Scan_Ini
+ subw imm(MAX_DIST),Limit
+ bhis L__limit_ok
+ clrl Limit
+L__limit_ok:
+ cmpl invert_maybe(_good_match,Best_Len)
+ blos L__length_ok
+ lsrl imm(2),Chain_Length
+L__length_ok:
+ subql imm(1),Chain_Length
+#ifdef UNALIGNED_OK
+ movew IndBase(-MIN_MATCH,Scan_Ini),Scan_Start
+ movew IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
+#else
+ moveb IndBase(-MIN_MATCH,Scan_Ini),Scan_Start
+ lslw imm(8),Scan_Start
+ moveb IndBase(-MIN_MATCH+1,Scan_Ini),Scan_Start
+ moveb IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
+ lslw imm(8),Scan_End
+ moveb IndBaseNdxw(-MIN_MATCH,Scan_Ini,Best_Len),Scan_End
+#endif
+ bras L__do_scan
+
+L__long_loop:
+#ifdef UNALIGNED_OK
+ movew IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
+#else
+ moveb IndBaseNdxw(-MIN_MATCH-1,Scan_Ini,Best_Len),Scan_End
+ lslw imm(8),Scan_End
+ moveb IndBaseNdxw(-MIN_MATCH,Scan_Ini,Best_Len),Scan_End
+#endif
+
+L__short_loop:
+ lslw imm(1),Cur_Match
+ movew IndBaseNdxl(0,Prev_Address,Cur_Match),Cur_Match
+ cmpw invert_maybe(Limit,Cur_Match)
+ dbls Chain_Length,L__do_scan
+ bras L__return
+
+L__do_scan:
+ movel Match_Ini,Match
+ addl Cur_Match,Match
+#ifdef UNALIGNED_OK
+ cmpw invert_maybe(IndBaseNdxw(-MIN_MATCH-1,Match,Best_Len),Scan_End)
+ bne L__short_loop
+ cmpw invert_maybe(IndBase(-MIN_MATCH,Match),Scan_Start)
+ bne L__short_loop
+#else
+ moveb IndBaseNdxw(-MIN_MATCH-1,Match,Best_Len),Scan_Test
+ lslw imm(8),Scan_Test
+ moveb IndBaseNdxw(-MIN_MATCH,Match,Best_Len),Scan_Test
+ cmpw invert_maybe(Scan_Test,Scan_End)
+ bne L__short_loop
+ moveb IndBase(-MIN_MATCH,Match),Scan_Test
+ lslw imm(8),Scan_Test
+ moveb IndBase(-MIN_MATCH+1,Match),Scan_Test
+ cmpw invert_maybe(Scan_Test,Scan_Start)
+ bne L__short_loop
+#endif
+
+ movew imm((MAX_MATCH-MIN_MATCH+1)-1),Loop_Counter
+ movel Scan_Ini,Scan
+L__scan_loop:
+ cmpmb postinc(Match),postinc(Scan)
+ dbne Loop_Counter,L__scan_loop
+
+ subl Scan_Ini,Scan
+ addql imm(MIN_MATCH-1),Scan
+ cmpl invert_maybe(Best_Len,Scan)
+ bls L__short_loop
+ movel Scan,Best_Len
+ movel Cur_Match,_match_start
+ cmpl invert_maybe(_nice_match,Best_Len)
+ blos L__long_loop
+L__return:
+ moveml postinc(Stack_Pointer),imm(popreg)
+ rts
+
+#else
+ error: this asm version is for 386 or 680x0 only
+#endif /* mc68000 || mc68020 */
+#endif /* i386 || _I386 */
--- /dev/null
+#! /bin/sh
+# Common stub for a few missing GNU programs while installing.
+# Copyright 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
+# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+ echo 1>&2 "Try \`$0 --help' for more information"
+ exit 1
+fi
+
+run=:
+
+# In the cases where this matters, `missing' is being run in the
+# srcdir already.
+if test -f configure.ac; then
+ configure_ac=configure.ac
+else
+ configure_ac=configure.in
+fi
+
+case "$1" in
+--run)
+ # Try to run requested program, and just exit if it succeeds.
+ run=
+ shift
+ "$@" && exit 0
+ ;;
+esac
+
+# If it does not exist, or fails to run (possibly an outdated version),
+# try to emulate it.
+case "$1" in
+
+ -h|--h|--he|--hel|--help)
+ echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
+error status if there is no known handling for PROGRAM.
+
+Options:
+ -h, --help display this help and exit
+ -v, --version output version information and exit
+ --run try to run the given command, and emulate it if it fails
+
+Supported PROGRAM values:
+ aclocal touch file \`aclocal.m4'
+ autoconf touch file \`configure'
+ autoheader touch file \`config.h.in'
+ automake touch all \`Makefile.in' files
+ bison create \`y.tab.[ch]', if possible, from existing .[ch]
+ flex create \`lex.yy.c', if possible, from existing .c
+ help2man touch the output file
+ lex create \`lex.yy.c', if possible, from existing .c
+ makeinfo touch the output file
+ tar try tar, gnutar, gtar, then tar without non-portable flags
+ yacc create \`y.tab.[ch]', if possible, from existing .[ch]"
+ ;;
+
+ -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+ echo "missing 0.4 - GNU automake"
+ ;;
+
+ -*)
+ echo 1>&2 "$0: Unknown \`$1' option"
+ echo 1>&2 "Try \`$0 --help' for more information"
+ exit 1
+ ;;
+
+ aclocal)
+ if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+ # We have it, but it failed.
+ exit 1
+ fi
+
+ echo 1>&2 "\
+WARNING: \`$1' is missing on your system. You should only need it if
+ you modified \`acinclude.m4' or \`${configure_ac}'. You might want
+ to install the \`Automake' and \`Perl' packages. Grab them from
+ any GNU archive site."
+ touch aclocal.m4
+ ;;
+
+ autoconf)
+ if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+ # We have it, but it failed.
+ exit 1
+ fi
+
+ echo 1>&2 "\
+WARNING: \`$1' is missing on your system. You should only need it if
+ you modified \`${configure_ac}'. You might want to install the
+ \`Autoconf' and \`GNU m4' packages. Grab them from any GNU
+ archive site."
+ touch configure
+ ;;
+
+ autoheader)
+ if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+ # We have it, but it failed.
+ exit 1
+ fi
+
+ echo 1>&2 "\
+WARNING: \`$1' is missing on your system. You should only need it if
+ you modified \`acconfig.h' or \`${configure_ac}'. You might want
+ to install the \`Autoconf' and \`GNU m4' packages. Grab them
+ from any GNU archive site."
+ files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
+ test -z "$files" && files="config.h"
+ touch_files=
+ for f in $files; do
+ case "$f" in
+ *:*) touch_files="$touch_files "`echo "$f" |
+ sed -e 's/^[^:]*://' -e 's/:.*//'`;;
+ *) touch_files="$touch_files $f.in";;
+ esac
+ done
+ touch $touch_files
+ ;;
+
+ automake)
+ if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+ # We have it, but it failed.
+ exit 1
+ fi
+
+ echo 1>&2 "\
+WARNING: \`$1' is missing on your system. You should only need it if
+ you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
+ You might want to install the \`Automake' and \`Perl' packages.
+ Grab them from any GNU archive site."
+ find . -type f -name Makefile.am -print |
+ sed 's/\.am$/.in/' |
+ while read f; do touch "$f"; done
+ ;;
+
+ autom4te)
+ if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+ # We have it, but it failed.
+ exit 1
+ fi
+
+ echo 1>&2 "\
+WARNING: \`$1' is needed, and you do not seem to have it handy on your
+ system. You might have modified some files without having the
+ proper tools for further handling them.
+ You can get \`$1Help2man' as part of \`Autoconf' from any GNU
+ archive site."
+
+ file=`echo "$*" | sed -n 's/.*--output[ =]*\([^ ]*\).*/\1/p'`
+ test -z "$file" && file=`echo "$*" | sed -n 's/.*-o[ ]*\([^ ]*\).*/\1/p'`
+ if test -f "$file"; then
+ touch $file
+ else
+ test -z "$file" || exec >$file
+ echo "#! /bin/sh"
+ echo "# Created by GNU Automake missing as a replacement of"
+ echo "# $ $@"
+ echo "exit 0"
+ chmod +x $file
+ exit 1
+ fi
+ ;;
+
+ bison|yacc)
+ echo 1>&2 "\
+WARNING: \`$1' is missing on your system. You should only need it if
+ you modified a \`.y' file. You may need the \`Bison' package
+ in order for those modifications to take effect. You can get
+ \`Bison' from any GNU archive site."
+ rm -f y.tab.c y.tab.h
+ if [ $# -ne 1 ]; then
+ eval LASTARG="\${$#}"
+ case "$LASTARG" in
+ *.y)
+ SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
+ if [ -f "$SRCFILE" ]; then
+ cp "$SRCFILE" y.tab.c
+ fi
+ SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
+ if [ -f "$SRCFILE" ]; then
+ cp "$SRCFILE" y.tab.h
+ fi
+ ;;
+ esac
+ fi
+ if [ ! -f y.tab.h ]; then
+ echo >y.tab.h
+ fi
+ if [ ! -f y.tab.c ]; then
+ echo 'main() { return 0; }' >y.tab.c
+ fi
+ ;;
+
+ lex|flex)
+ echo 1>&2 "\
+WARNING: \`$1' is missing on your system. You should only need it if
+ you modified a \`.l' file. You may need the \`Flex' package
+ in order for those modifications to take effect. You can get
+ \`Flex' from any GNU archive site."
+ rm -f lex.yy.c
+ if [ $# -ne 1 ]; then
+ eval LASTARG="\${$#}"
+ case "$LASTARG" in
+ *.l)
+ SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
+ if [ -f "$SRCFILE" ]; then
+ cp "$SRCFILE" lex.yy.c
+ fi
+ ;;
+ esac
+ fi
+ if [ ! -f lex.yy.c ]; then
+ echo 'main() { return 0; }' >lex.yy.c
+ fi
+ ;;
+
+ help2man)
+ if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
+ # We have it, but it failed.
+ exit 1
+ fi
+
+ echo 1>&2 "\
+WARNING: \`$1' is missing on your system. You should only need it if
+ you modified a dependency of a manual page. You may need the
+ \`Help2man' package in order for those modifications to take
+ effect. You can get \`Help2man' from any GNU archive site."
+
+ file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
+ if test -z "$file"; then
+ file=`echo "$*" | sed -n 's/.*--output=\([^ ]*\).*/\1/p'`
+ fi
+ if [ -f "$file" ]; then
+ touch $file
+ else
+ test -z "$file" || exec >$file
+ echo ".ab help2man is required to generate this page"
+ exit 1
+ fi
+ ;;
+
+ makeinfo)
+ if test -z "$run" && (makeinfo --version) > /dev/null 2>&1; then
+ # We have makeinfo, but it failed.
+ exit 1
+ fi
+
+ echo 1>&2 "\
+WARNING: \`$1' is missing on your system. You should only need it if
+ you modified a \`.texi' or \`.texinfo' file, or any other file
+ indirectly affecting the aspect of the manual. The spurious
+ call might also be the consequence of using a buggy \`make' (AIX,
+ DU, IRIX). You might want to install the \`Texinfo' package or
+ the \`GNU make' package. Grab either from any GNU archive site."
+ file=`echo "$*" | sed -n 's/.*-o \([^ ]*\).*/\1/p'`
+ if test -z "$file"; then
+ file=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
+ file=`sed -n '/^@setfilename/ { s/.* \([^ ]*\) *$/\1/; p; q; }' $file`
+ fi
+ touch $file
+ ;;
+
+ tar)
+ shift
+ if test -n "$run"; then
+ echo 1>&2 "ERROR: \`tar' requires --run"
+ exit 1
+ fi
+
+ # We have already tried tar in the generic part.
+ # Look for gnutar/gtar before invocation to avoid ugly error
+ # messages.
+ if (gnutar --version > /dev/null 2>&1); then
+ gnutar ${1+"$@"} && exit 0
+ fi
+ if (gtar --version > /dev/null 2>&1); then
+ gtar ${1+"$@"} && exit 0
+ fi
+ firstarg="$1"
+ if shift; then
+ case "$firstarg" in
+ *o*)
+ firstarg=`echo "$firstarg" | sed s/o//`
+ tar "$firstarg" ${1+"$@"} && exit 0
+ ;;
+ esac
+ case "$firstarg" in
+ *h*)
+ firstarg=`echo "$firstarg" | sed s/h//`
+ tar "$firstarg" ${1+"$@"} && exit 0
+ ;;
+ esac
+ fi
+
+ echo 1>&2 "\
+WARNING: I can't seem to be able to run \`tar' with the given arguments.
+ You may want to install GNU tar or Free paxutils, or check the
+ command line arguments."
+ exit 1
+ ;;
+
+ *)
+ echo 1>&2 "\
+WARNING: \`$1' is needed, and you do not seem to have it handy on your
+ system. You might have modified some files without having the
+ proper tools for further handling them. Check the \`README' file,
+ it often tells you about the needed prerequirements for installing
+ this package. You may also peek at any GNU archive site, in case
+ some other package would contain this missing \`$1' program."
+ exit 1
+ ;;
+esac
+
+exit 0
--- /dev/null
+#! /bin/sh
+# mkinstalldirs --- make directory hierarchy
+# Author: Noah Friedman <friedman@prep.ai.mit.edu>
+# Created: 1993-05-16
+# Public domain
+
+# $Id: mkinstalldirs,v 1.13 1999/01/05 03:18:55 bje Exp $
+
+errstatus=0
+dirmode=""
+
+usage="\
+Usage: mkinstalldirs [-h] [--help] [-m mode] dir ..."
+
+# process command line arguments
+while test $# -gt 0 ; do
+ case "${1}" in
+ -h | --help | --h* ) # -h for help
+ echo "${usage}" 1>&2; exit 0 ;;
+ -m ) # -m PERM arg
+ shift
+ test $# -eq 0 && { echo "${usage}" 1>&2; exit 1; }
+ dirmode="${1}"
+ shift ;;
+ -- ) shift; break ;; # stop option processing
+ -* ) echo "${usage}" 1>&2; exit 1 ;; # unknown option
+ * ) break ;; # first non-opt arg
+ esac
+done
+
+for file
+do
+ if test -d "$file"; then
+ shift
+ else
+ break
+ fi
+done
+
+case $# in
+0) exit 0 ;;
+esac
+
+case $dirmode in
+'')
+ if mkdir -p -- . 2>/dev/null; then
+ echo "mkdir -p -- $*"
+ exec mkdir -p -- "$@"
+ fi ;;
+*)
+ if mkdir -m "$dirmode" -p -- . 2>/dev/null; then
+ echo "mkdir -m $dirmode -p -- $*"
+ exec mkdir -m "$dirmode" -p -- "$@"
+ fi ;;
+esac
+
+for file
+do
+ set fnord `echo ":$file" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`
+ shift
+
+ pathcomp=
+ for d
+ do
+ pathcomp="$pathcomp$d"
+ case "$pathcomp" in
+ -* ) pathcomp=./$pathcomp ;;
+ esac
+
+ if test ! -d "$pathcomp"; then
+ echo "mkdir $pathcomp"
+
+ mkdir "$pathcomp" || lasterr=$?
+
+ if test ! -d "$pathcomp"; then
+ errstatus=$lasterr
+ else
+ if test ! -z "$dirmode"; then
+ echo "chmod $dirmode $pathcomp"
+
+ lasterr=""
+ chmod "$dirmode" "$pathcomp" || lasterr=$?
+
+ if test ! -z "$lasterr"; then
+ errstatus=$lasterr
+ fi
+ fi
+ fi
+ fi
+
+ pathcomp="$pathcomp/"
+ done
+done
+
+exit $errstatus
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 3
+# End:
+# mkinstalldirs ends here
--- /dev/null
+# Makefile for gzip
+# Borland (Turbo) C++.
+# Warning: this file is not suitable for Turbo C 2.0. In this case, read
+# then invoke the file doturboc.bat.
+
+# To use, do "make -fmakefile.bor"
+
+# Turbo C++ 1.0 seems to have a buggy exit() function. You must add
+# to CFLAGS: -Dexit=_exit
+
+# WARNING: the small model is not supported. The compact model is used
+# here. If you want to use the large model, add -D__LARGE__ to ASFLAGS
+# Add -DSMALL_MEM to CFLAGS if you wish to reduce the memory
+# requirements. Add -DNO_ASM to CFLAGS and remove match.obj from OBJA if
+# you do not have tasm.
+
+# ------------- Turbo C++, Borland C++ -------------
+MODEL=-mc
+#CFLAGS=-w -w-eff -w-def -w-sig -w-cln -a -d -G -O -Z $(MODEL)
+CFLAGS=-O2 -Z $(MODEL)
+CC=bcc
+LD=bcc
+# replace bcc with tcc for Turbo C++ 1.0
+LDFLAGS=$(MODEL)
+AS=tasm
+ASFLAGS=-ml -t -DDYN_ALLOC -DSS_NEQ_DS
+LIB = c:\bcc\lib
+
+# ------------- Common declarations:
+STRIP=rem
+# If you don't have lzexe, get it (by ftp on wuarchive.wustl.edu
+# in /mirrors/msdos/filutl/lzexe91e.zip). Then define:
+#STRIP=lzexe
+# Or if you've registered PKLITE, then define:
+#STRIP=pklite
+# This makes a big difference in .exe size (and possibly load time)
+
+O=.obj
+OBJA=match$(O) tailor$(O) $(LIB)\wildargs.obj
+
+# ------------- Used by install rule
+# set BIN to the directory you want to install the executables to
+BIN = c:\bin
+
+# variables
+OBJ1 = gzip$(O) zip$(O) deflate$(O) trees$(O) bits$(O) unzip$(O) inflate$(O) \
+ util$(O)
+OBJ2 = crypt$(O) lzw$(O) unlzw$(O) unpack$(O) unlzh$(O) getopt$(O) $(OBJA)
+
+all: gzip.exe
+
+gzip.obj: gzip.c gzip.h tailor.h crypt.h revision.h lzw.h
+ $(CC) -c $(CFLAGS) $*.c
+
+zip.obj: zip.c gzip.h tailor.h crypt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+deflate.obj: deflate.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+trees.obj: trees.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+bits.obj: bits.c gzip.h tailor.h crypt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+unzip.obj: unzip.c gzip.h tailor.h crypt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+inflate.obj: inflate.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+util.obj: util.c gzip.h tailor.h crypt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+crypt.obj: crypt.c gzip.h tailor.h crypt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+lzw.obj: lzw.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+unlzw.obj: unlzw.c gzip.h tailor.h lzw.h
+ $(CC) -c $(CFLAGS) $*.c
+
+unpack.obj: unpack.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+unlzh.obj: unlzh.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+tailor.obj: msdos\tailor.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) msdos\$*.c
+
+getopt.obj: getopt.c getopt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+match.obj: msdos\match.asm
+ $(AS) $(ASFLAGS) msdos\match, match;
+
+# we must cut the command line to fit in the MS/DOS 128 byte limit:
+gzip.exe: $(OBJ1) $(OBJ2)
+ echo $(OBJ1) > gzip.rsp
+ echo $(OBJ2) >> gzip.rsp
+ $(LD) $(LDFLAGS) @gzip.rsp
+ del gzip.rsp
+ $(STRIP) gzip.exe
+# If you use Borland make, you can use instead:
+# $(LD) $(LDFLAGS) @&&|
+#$**
+#|
+
+install: gzip.exe
+ copy /b gzip.exe $(BIN)
+ copy /b gzip.exe $(BIN)\gunzip.exe
+
+clean:
+ del *.obj
+ del *.exe
--- /dev/null
+# Makefile for gzip (GNU zip) -*- Indented-Text -*-
+# Copyright (C) 1992-1993 Jean-loup Gailly and the Free Software Foundation
+# Modified for GNUish make/MS_SH200/DJGPP 1.09+ by Eric Backus
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+# $Id: Makefile.djg,v 1.3 1993/06/22 15:43:24 jloup Exp $
+
+#### Start of system configuration section. ####
+
+.SUFFIXES: .o
+LONGARGS = gcc:rm
+
+srcdir = .
+VPATH = .
+
+CC = gcc
+CPP = gcc -O -E
+
+INSTALL = install -c
+INSTALL_PROGRAM = $(INSTALL)
+INSTALL_DATA = $(INSTALL) -m 644
+
+# tailor.h defines things for DJGPP so nothing is needed here
+DEFS =
+LIBS =
+
+# additional assembly sources for particular systems may be required.
+OBJA = match.o
+
+SEDCMD = 1d
+
+CFLAGS = -O2 -finline-functions -fomit-frame-pointer
+LDFLAGS = -s
+
+X=.exe
+# For OS/2 or MSDOS, use: X=.exe
+
+O=.o
+# For OS/2 or MSDOS, use: O=.obj
+
+prefix = /usr/local
+exec_prefix = $(prefix)
+
+bindir = $(exec_prefix)/bin
+datadir = $(prefix)/lib
+libdir = $(prefix)/lib
+infodir = $(prefix)/info
+
+# Extension (not including `.') for the installed manual page filenames.
+manext = 1
+# Where to install the manual pages.
+mandir = $(prefix)/man/man$(manext)
+
+#### End of system configuration section. ####
+
+SHELL = /bin/sh
+
+LOADLIBES = $(LIBS)
+
+TAR = tar
+
+SRCS = gzip.c zip.c deflate.c trees.c bits.c unzip.c inflate.c util.c crypt.c\
+ lzw.c unlzw.c unpack.c unlzh.c makecrc.c getopt.c match.S
+
+OBJ1 = gzip$(O) zip$(O) deflate$(O) trees$(O) bits$(O) unzip$(O) inflate$(O) \
+ util$(O)
+OBJ2 = crypt$(O) lzw$(O) unlzw$(O) unpack$(O) unlzh$(O) getopt$(O) $(OBJA)
+
+HDRS = gzip.h lzw.h tailor.h revision.h crypt.h getopt.h
+
+.c$O:
+ $(CC) -c $(DEFS) $(CFLAGS) $<
+
+#.PHONY: default all force test check
+
+default: all
+all: gzip$X zcmp zdiff zmore znew zforce gzexe
+force:
+
+install: all
+ for f in gzip$X zcmp zdiff zmore znew zforce gzexe; do \
+ $(INSTALL_PROGRAM) $${f} $(bindir)/$${f}; done
+ for f in gunzip$X zcat$X ; do \
+ rm -f $(bindir)/$${f}; ln $(bindir)/gzip$X $(bindir)/$${f}; done
+ -cd $(srcdir); \
+ for f in gzip gunzip zcat zcmp zmore znew zforce gzexe; do \
+ rm -f $(mandir)/$${f}.$(manext); \
+ $(INSTALL_DATA) $${f}.1 $(mandir)/$${f}.$(manext); done
+ -cd $(srcdir); for f in gzip.info* ; do $(INSTALL_DATA) $${f} \
+ $(infodir)/$${f}; done
+
+uninstall: force
+ -cd $(bindir); rm -f gzip$X gunzip$X zcat$X \
+ zcmp zdiff zmore znew zforce gzexe
+ -for f in gzip gunzip zcat zcmp zmore znew gzexe; do \
+ rm -f $(mandir)/$${f}.$(manext); done
+ -cd $(infodir); rm -f gzip.info*
+
+# install all files and replace compress (not recommended)
+install_compress: install
+ -test -f $(bindir)/compress.old || \
+ mv $(bindir)/compress$X $(bindir)/compress.old
+ ln $(bindir)/gzip$X $(bindir)/compress$X
+ rm -f $(bindir)/uncompress$X
+ ln $(bindir)/gzip$X $(bindir)/uncompress$X
+
+test: check
+check: all
+ ./gzip -5 < $(srcdir)/texinfo.tex > _gztest.z
+ # Either GNUish make or MS_SH has trouble with backquotes
+ #@if test `wc -c < _gztest.z` -ne 30890; then \
+ # echo FAILED gzip test: incorrect size; rm -f _gztest*; exit 1; \
+ # else :; fi
+ @echo Should be 30890:\\c
+ @wc -c < _gztest.z
+ rm -f _gztest
+ ./gzip -d _gztest.z
+ @if cmp _gztest $(srcdir)/texinfo.tex; then \
+ echo gzip test OK; \
+ else \
+ echo FAILED gzip test: incorrect decompress; \
+ fi
+ rm -f _gztest*
+
+TAGS: $(SRCS) $(HDRS)
+ cd $(srcdir); etags $(SRCS) $(HDRS)
+
+Makefile: Makefile.in ./config.status
+ ./config.status
+
+./config.status: configure
+ $(srcdir)/configure --srcdir=$(srcdir) --no-create
+
+configure: configure.in
+ @echo Warning: configure is out of date
+# cd $(srcdir); autoconf
+
+clean:
+ rm -f *$O gzip$X gunzip$X zcat$X a.out core gzip
+ rm -f zcmp zdiff zmore znew zforce gzexe _gztest*
+ rm -f *.aux *.cp *.cps *.dvi *.fn *.fns *.ky *.kys *.log
+ rm -f *.pg *.pgs *.toc *.tp *.tps *.vr *.vrs
+
+mostlyclean: clean
+
+distclean: clean
+ rm -f Makefile config.status
+
+realclean: distclean
+ rm -f TAGS gzip.info*
+
+# Actual build-related targets
+
+gzip$X: gzip
+ aout2exe gzip
+
+gzip: $(OBJ1) $(OBJ2)
+ echo $(OBJ1) > gzip.rsp
+ echo $(OBJ2) $(LIBS) >> gzip.rsp
+ $(CC) $(LDFLAGS) -o $@ @gzip.rsp
+ del gzip.rsp
+
+gzip$O zip$O deflate$O trees$O bits$O unzip$O inflate$O: gzip.h tailor.h
+util$O lzw$O unlzw$O unpack$O unlzh$O crypt$O: gzip.h tailor.h
+
+gzip$O unlzw$O: revision.h lzw.h
+
+bits$O unzip$O util$O zip$O: crypt.h
+
+gzip$O getopt$O: getopt.h
+
+match$O: match.S
+ $(CC) -c match.S
+
+zcmp: zcmp.in
+ sed "$(SEDCMD)" $(srcdir)/zcmp.in > zcmp
+ chmod 755 zcmp
+
+zdiff: zdiff.in
+ sed "$(SEDCMD)" $(srcdir)/zdiff.in > zdiff
+ chmod 755 zdiff
+
+zmore: zmore.in
+ sed "$(SEDCMD)" $(srcdir)/zmore.in > zmore
+ chmod 755 zmore
+
+znew: znew.in
+ sed "$(SEDCMD)" $(srcdir)/znew.in > znew
+ chmod 755 znew
+
+zforce: zforce.in
+ sed "$(SEDCMD)" $(srcdir)/zforce.in > zforce
+ chmod 755 zforce
+
+gzexe: gzexe.in
+ sed "$(SEDCMD)" $(srcdir)/gzexe.in > gzexe
+ chmod 755 gzexe
+
+gzip.info: gzip.texi
+ cd $(srcdir); makeinfo gzip.texi
+
+gzip.dvi: gzip.texi
+ cd $(srcdir); texi2dvi gzip.texi
+
+gzip.doc: gzip.1
+ cd $(srcdir); nroff -man gzip.1 | col -b | uniq > gzip.doc
+
+# Prevent GNU make v3 from overflowing arg limit on SysV.
+.NOEXPORT:
+
+# end of file
--- /dev/null
+# Makefile for gzip
+# Microsoft C 5.1 or 6.0.
+
+# To use, do "make makefile.msc"
+
+# WARNING: the small model is not supported. The compact model is used
+# here. If you want to use the large model, add -D__LARGE__ to ASFLAGS
+# Add -DSMALL_MEM to CFLAGS if you wish to reduce the memory
+# requirements. Add -DNO_ASM to CFLAGS and remove match.obj from OBJI if
+# you do not have masm.
+
+# ------------- Microsoft C 5.1 and later -------------
+MODEL=-AC
+FP=
+CFLAGS=-Ox -nologo $(MODEL)
+BFLAGS=-Oait -Gs -nologo $(MODEL)
+# BFLAGS are the 'bug workaround' flags.
+CC=cl
+LD=link
+LDFLAGS=/e/st:0x1000/noe
+# If you use lzexe as recommended, remove /e from LDFLAGS
+AS=masm
+# For MSC 6.0, use: AS=ml
+ASFLAGS=-ml -t
+# Add -DDYN_ALLOC to ASFLAGS if you have defined it in tailor.h or CFLAGS
+LIB = c:\c51\lib
+
+# ------------- Common declarations:
+STRIP=rem
+# If you don't have lzexe, get it (by ftp on wuarchive.wustl.edu
+# in /mirrors/msdos/filutl/lzexe91e.zip). Then define:
+#STRIP=lzexe
+# Or if you've registered PKLITE, then define:
+#STRIP=pklite
+# This makes a big difference in .exe size (and possibly load time)
+
+O=.obj
+OBJA=match$(O) $(LIB)\setargv$(O)
+
+# ------------- Used by install rule
+# set BIN to the directory you want to install the executables to
+BIN = c:\bin
+
+# variables
+OBJ1 = gzip$(O) zip$(O) deflate$(O) trees$(O) bits$(O) unzip$(O) inflate$(O) \
+ util$(O)
+OBJ2 = crypt$(O) lzw$(O) unlzw$(O) unpack$(O) unlzh$(O) getopt$(O) $(OBJA)
+
+gzip.obj: gzip.c gzip.h tailor.h crypt.h revision.h lzw.h
+ $(CC) -c $(CFLAGS) $*.c
+
+zip.obj: zip.c gzip.h tailor.h crypt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+deflate.obj: deflate.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+trees.obj: trees.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+bits.obj: bits.c gzip.h tailor.h crypt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+unzip.obj: unzip.c gzip.h tailor.h crypt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+inflate.obj: inflate.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+util.obj: util.c gzip.h tailor.h crypt.h
+ $(CC) -c $(BFLAGS) $*.c
+
+crypt.obj: crypt.c gzip.h tailor.h crypt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+lzw.obj: lzw.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+unlzw.obj: unlzw.c gzip.h tailor.h lzw.h
+ $(CC) -c $(CFLAGS) $*.c
+
+unpack.obj: unpack.c gzip.h tailor.h
+ $(CC) -c $(CFLAGS) $*.c
+
+unlzh.obj: unlzh.c gzip.h tailor.h
+ $(CC) -c $(BFLAGS) $*.c
+
+getopt.obj: getopt.c getopt.h
+ $(CC) -c $(CFLAGS) $*.c
+
+match.obj: msdos\match.asm
+ $(AS) $(ASFLAGS) msdos\match, match;
+
+# we must cut the command line to fit in the MS/DOS 128 byte limit:
+gzip.exe: $(OBJ1) $(OBJ2)
+ echo $(OBJ1)+ > gzip.rsp
+ echo $(OBJ2); >> gzip.rsp
+ $(LD) $(LDFLAGS) @gzip.rsp
+ del gzip.rsp
+ $(STRIP) gzip.exe
+
+install: gzip.exe
+ copy /b gzip.exe $(BIN)
+ copy /b gzip.exe $(BIN)\gunzip.exe
+
+#clean:
+# del *.obj
+# del *.exe
--- /dev/null
+: This file is a complement to gzip.prj for Turbo C 2.0 users.
+: To construct gzip, first transform all files to msdos CR LF format.
+: (Use utilities such as flip or do file transfers in ascii mode.)
+: Then invoke this file. Then enter Turbo C, set the the
+: compilation model to compact, and the project file to gzip.prj.
+: Change the compilation flags if you wish (add SMALL_MEM
+: to reduce the memory requirements), and press F9...
+: WARNING: you must use the compact or large model in this version.
+: To use the large model, add -D__LARGE__ in the tasm command below.
+: To get the file wildargs.obj, do:
+:
+: pkunpak \tcc\startup wildargs.obj
+:
+: pkunpak is available in wuarchive.wustl.edu:/mirrors/msdos/starter/pk361.exe
+:
+: After compiling gzip.exe, do: copy gzip.exe gunzip.exe
+:
+tasm -ml -DDYN_ALLOC -DSS_NEQ_DS msdos\match, match;
--- /dev/null
+gzip.c (gzip.h tailor.h crypt.h revision.h lzw.h)
+zip.c (gzip.h tailor.h crypt.h)
+deflate.c (gzip.h tailor.h)
+trees.c (gzip.h tailor.h)
+bits.c (gzip.h tailor.h crypt.h)
+unzip.c (gzip.h tailor.h crypt.h)
+inflate.c (gzip.h tailor.h)
+util.c (gzip.h tailor.h crypt.h)
+crypt.c (gzip.h tailor.h crypt.h)
+lzw.c (gzip.h tailor.h)
+unlzw.c (gzip.h tailor.h lzw.h)
+unpack.c (gzip.h tailor.h)
+unlzh.c (gzip.h tailor.h)
+msdos\tailor.c (gzip.h tailor.h)
+getopt.c (getopt.h)
+match.obj
+wildargs.obj
--- /dev/null
+; match.asm -- optional optimized asm version of longest match in deflate.c
+; Copyright (C) 1992-1993 Jean-loup Gailly
+; This is free software; you can redistribute it and/or modify it under the
+; terms of the GNU General Public License, see the file COPYING.
+;
+; Must be assembled with masm -ml. To be used only with C compact model
+; or large model. (For large model, assemble with -D__LARGE__).
+; This file is only optional. If you don't have masm or tasm, use the
+; C version (add -DNO_ASM to CFLAGS in makefile.msc and remove match.obj
+; from OBJI). If you have reduced WSIZE in zip.h, then change its value
+; below.
+;
+; Turbo C 2.0 does not support static allocation of more than 64K bytes per
+; file, and does not have SS == DS. So TC and BC++ users must use:
+; tasm -ml -DDYN_ALLOC -DSS_NEQ_DS match;
+;
+; To simplify the code, the option -DDYN_ALLOC is supported for OS/2
+; only if the arrays are guaranteed to have zero offset (allocated by
+; halloc). We also require SS==DS. This is satisfied for MSC but not Turbo C.
+
+; $Id: match.asm,v 0.6 1993/01/21 18:49:05 jloup Exp $
+
+ name match
+
+ifndef DYN_ALLOC
+ extrn _prev : word
+ extrn _window : byte
+ prev equ _prev ; offset part
+ window equ _window
+endif
+
+_DATA segment word public 'DATA'
+ extrn _nice_match : word
+ extrn _match_start : word
+ extrn _prev_length : word
+ extrn _good_match : word
+ extrn _strstart : word
+ extrn _max_chain_length : word
+ifdef DYN_ALLOC
+ extrn _prev : word
+ extrn _window : word
+ prev equ 0 ; offset forced to zero
+ window equ 0
+ window_seg equ _window[2]
+ window_off equ 0
+else
+ wseg dw seg _window
+ window_seg equ wseg
+ window_off equ offset _window
+endif
+_DATA ends
+
+DGROUP group _DATA
+
+_TEXT segment word public 'CODE'
+ assume cs: _TEXT, ds: DGROUP
+
+ public _match_init
+ public _longest_match
+
+ MIN_MATCH equ 3
+ MAX_MATCH equ 258
+ WSIZE equ 32768 ; keep in sync with zip.h !
+ MIN_LOOKAHEAD equ (MAX_MATCH+MIN_MATCH+1)
+ MAX_DIST equ (WSIZE-MIN_LOOKAHEAD)
+
+prev_ptr dw seg _prev ; pointer to the prev array
+ifdef SS_NEQ_DS
+ match_start dw 0 ; copy of _match_start if SS != DS
+ nice_match dw 0 ; copy of _nice_match if SS != DS
+endif
+
+; initialize or check the variables used in match.asm.
+
+ifdef __LARGE__
+_match_init proc far ; 'proc far' for large model
+else
+_match_init proc near ; 'proc near' for compact model
+endif
+ifdef SS_NEQ_DS
+ ma_start equ cs:match_start ; does not work on OS/2
+ nice equ cs:nice_match
+ mov ax,_nice_match
+ mov cs:nice_match,ax ; ugly write to code, crash on OS/2
+else
+ assume ss: DGROUP
+ ma_start equ ss:_match_start
+ nice equ ss:_nice_match
+ mov ax,ds
+ mov bx,ss
+ cmp ax,bx ; SS == DS?
+ jne error
+endif
+ifdef DYN_ALLOC
+ cmp _prev[0],0 ; verify zero offset
+ jne error
+ cmp _window[0],0
+ jne error
+ ifdef SS_NEQ_DS
+ mov ax,_prev[2] ; segment value
+ mov cs:prev_ptr,ax ; ugly write to code, crash on OS/2
+ prev_seg equ cs:prev_ptr
+ else
+ prev_seg equ ss:_prev[2] ; works on OS/2 if SS == DS
+ endif
+else
+ prev_seg equ cs:prev_ptr
+endif
+ ret
+ifdef __LARGE__
+ extrn _exit : far ; 'far' for large model
+else
+ extrn _exit : near ; 'near' for compact model
+endif
+error: call _exit
+
+_match_init endp
+
+; -----------------------------------------------------------------------
+; Set match_start to the longest match starting at the given string and
+; return its length. Matches shorter or equal to prev_length are discarded,
+; in which case the result is equal to prev_length and match_start is
+; garbage.
+; IN assertions: cur_match is the head of the hash chain for the current
+; string (strstart) and its distance is <= MAX_DIST, and prev_length >= 1
+
+; int longest_match(cur_match)
+
+ifdef __LARGE__
+_longest_match proc far ; 'proc far' for large model
+else
+_longest_match proc near ; 'proc near' for compact model
+endif
+ push bp
+ mov bp,sp
+ push di
+ push si
+ push ds
+
+ifdef __LARGE__
+ cur_match equ word ptr [bp+6] ; [bp+6] for large model
+else
+ cur_match equ word ptr [bp+4] ; [bp+4] for compact model
+endif
+
+; window equ es:window (es:0 for DYN_ALLOC)
+; prev equ ds:prev
+; match equ es:si
+; scan equ es:di
+; chain_length equ bp
+; best_len equ bx
+; limit equ dx
+
+ mov si,cur_match ; use bp before it is destroyed
+ mov bp,_max_chain_length ; chain_length = max_chain_length
+ mov di,_strstart
+ mov dx,di
+ sub dx,MAX_DIST ; limit = strstart-MAX_DIST
+ jae limit_ok
+ sub dx,dx ; limit = NIL
+limit_ok:
+ add di,2+window_off ; di = offset(window + strstart + 2)
+ mov bx,_prev_length ; best_len = prev_length
+ mov es,window_seg
+ mov ax,es:[bx+di-3] ; ax = scan[best_len-1..best_len]
+ mov cx,es:[di-2] ; cx = scan[0..1]
+ cmp bx,_good_match ; do we have a good match already?
+ mov ds,prev_seg ; (does not destroy the flags)
+ assume ds: nothing
+ jb do_scan ; good match?
+ shr bp,1 ; chain_length >>= 2
+ shr bp,1
+ jmp short do_scan
+
+ even ; align destination of branch
+long_loop:
+; at this point, ds:di == scan+2, ds:si == cur_match
+ mov ax,[bx+di-3] ; ax = scan[best_len-1..best_len]
+ mov cx,[di-2] ; cx = scan[0..1]
+ mov ds,prev_seg ; reset ds to address the prev array
+short_loop:
+; at this point, di == scan+2, si = cur_match,
+; ax = scan[best_len-1..best_len] and cx = scan[0..1]
+if (WSIZE-32768)
+ and si,WSIZE-1 ; not needed if WSIZE=32768
+endif
+ shl si,1 ; cur_match as word index
+ mov si,prev[si] ; cur_match = prev[cur_match]
+ cmp si,dx ; cur_match <= limit ?
+ jbe the_end
+ dec bp ; --chain_length
+ jz the_end
+do_scan:
+ cmp ax,word ptr es:window[bx+si-1] ; check match at best_len-1
+ jne short_loop
+ cmp cx,word ptr es:window[si] ; check min_match_length match
+ jne short_loop
+
+ lea si,window[si+2] ; si = match
+ mov ax,di ; ax = scan+2
+ mov cx,es
+ mov ds,cx ; ds = es = window
+ mov cx,(MAX_MATCH-2)/2 ; scan for at most MAX_MATCH bytes
+ repe cmpsw ; loop until mismatch
+ je maxmatch ; match of length MAX_MATCH?
+mismatch:
+ mov cl,[di-2] ; mismatch on first or second byte?
+ sub cl,[si-2] ; cl = 0 if first bytes equal
+ xchg ax,di ; di = scan+2, ax = end of scan
+ sub ax,di ; ax = len
+ sub si,ax ; si = cur_match + 2 + offset(window)
+ sub si,2+window_off ; si = cur_match
+ sub cl,1 ; set carry if cl == 0 (can't use DEC)
+ adc ax,0 ; ax = carry ? len+1 : len
+ cmp ax,bx ; len > best_len ?
+ jle long_loop
+ mov ma_start,si ; match_start = cur_match
+ mov bx,ax ; bx = best_len = len
+ cmp ax,nice ; len >= nice_match ?
+ jl long_loop
+the_end:
+ pop ds
+ assume ds: DGROUP
+ifdef SS_NEQ_DS
+ mov ax,ma_start ; garbage if no match found
+ mov ds:_match_start,ax
+endif
+ pop si
+ pop di
+ pop bp
+ mov ax,bx ; result = ax = best_len
+ ret
+maxmatch: ; come here if maximum match
+ cmpsb ; increment si and di
+ jmp mismatch ; force match_length = MAX_LENGTH
+
+_longest_match endp
+
+_TEXT ends
+end
--- /dev/null
+/* tailor.c -- target dependent functions
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/* tailor.c is a bunch of non portable routines.
+ * It should be kept to a minimum.
+ */
+
+#include "tailor.h"
+#include "gzip.h"
+
+#ifndef lint
+static char rcsid[] = "$Id: tailor.c,v 0.8 1993/02/24 18:24:54 jloup Exp $";
+#endif
+
+#ifdef __TURBOC__
+
+/************************/
+/* Function fcalloc() */
+/************************/
+
+/* Turbo C malloc() does not allow dynamic allocation of 64K bytes
+ * and farmalloc(64K) returns a pointer with an offset of 8, so we
+ * must fix the pointer. Warning: the pointer must be put back to its
+ * original form in order to free it, use fcfree().
+ * For MSC, use halloc instead of this function (see tailor.h).
+ */
+static ush ptr_offset = 0;
+
+void * fcalloc(items, size)
+ unsigned items; /* number of items */
+ unsigned size; /* item size */
+{
+ void * buf = farmalloc((ulg)items*size + 16L);
+ if (buf == NULL) return NULL;
+ /* Normalize the pointer to seg:0 */
+ if (ptr_offset == 0) {
+ ptr_offset = (ush)((uch*)buf-0);
+ } else if (ptr_offset != (ush)((uch*)buf-0)) {
+ error("inconsistent ptr_offset");
+ }
+ *((ush*)&buf+1) += (ptr_offset + 15) >> 4;
+ *(ush*)&buf = 0;
+ return buf;
+}
+
+void fcfree(ptr)
+ void *ptr; /* region allocated with fcalloc() */
+{
+ /* Put the pointer back to its original form: */
+ *((ush*)&ptr+1) -= (ptr_offset + 15) >> 4;
+ *(ush*)&ptr = ptr_offset;
+ farfree(ptr);
+ }
+
+#endif /* __TURBOC__ */
--- /dev/null
+# Simple makefile for Windows NT
+# Written by Ron Cox <roncox@indirect.com>
+
+# This is free software; you can redistribute it and/or modify it under the
+# terms of the GNU General Public License, see the file COPYING.
+
+# This makefile is suitable for NTFS only. To build a gzip executable suitable
+# for a FAT file system, add -DNTFAT to DEFS.
+
+# To build debug version, define environment variable DEBUG, or include a
+# -DDEBUG on the commandline (i.e.: nmake -DDEBUG)
+
+.silent:
+
+!include <ntwin32.mak>
+
+#
+# Object files
+#
+OBJS = gzip.obj zip.obj deflate.obj trees.obj bits.obj unzip.obj inflate.obj \
+ util.obj crypt.obj lzw.obj unlzw.obj unpack.obj getopt.obj unlzh.obj
+
+DEFS =
+# for FAT support, set: DEFS = -DNTFAT
+
+#
+# How to build .obj's from .c's
+#
+.c.obj:
+ $(cc) $(DEFS) -Ox $(cflags) $(cvarsdll) $<
+
+#
+# Main target
+#
+all: gzip.exe
+
+#
+# Link target. setargv.obj is provided in the compiler library directory.
+#
+gzip.exe: $(OBJS)
+ $(link) $(linkdebug) $(conflags) -out:gzip.exe $(OBJS) setargv.obj \
+ $(conlibsdll)
+
+#
+# Dependencies
+#
+gzip.obj: gzip.c gzip.h tailor.h
+zip.obj: zip.c gzip.h tailor.h crypt.h
+deflate.obj: deflate.c gzip.h tailor.h
+trees.obj: trees.c gzip.h tailor.h
+bits.obj: bits.c gzip.h tailor.h crypt.h
+unzip.obj: unzip.c gzip.h tailor.h crypt.h
+inflate.obj: inflate.c gzip.h tailor.h crypt.h
+util.obj: util.c gzip.h tailor.h
+lzw.obj: lzw.c gzip.h tailor.h
+unlzw.obj: unlzw.c gzip.h tailor.h revision.h lzw.h
+unpack.obj: unpack.c gzip.h tailor.h
+crypt.obj: crypt.c gzip.h tailor.h
+unlzh.obj: unlzh.c gzip.h tailor.h lzw.h
+
+
+clean:
+ -rm $(OBJS)
+
+clobber: clean
+ -rm gzip.exe
--- /dev/null
+# Makefile for gzip (GNU zip), OS/2 version -*- Indented-Text -*-
+# Written by Kai Uwe Rommel <rommel@informatik.tu-muenchen.de>
+
+# specialized version for OS/2
+
+default:
+ @echo "Enter $(MAKE) -f makefile.os2 target"
+ @echo "where target is one of:"
+ @echo " msc mscdebug gcc gccdyn gccdebug"
+
+# compilation with emx 0.8f (gcc 2.3.3) or newer
+#
+# release version, statically linked C runtime
+gcc:
+ $(MAKE) -f Makefile.os2 all \
+ CC="gcc -Zomf -Zsys" O=".obj" S=".S" \
+ AS="gcc -Zomf -xassembler-with-cpp -c -o" \
+ CFLAGS="-O" LDFLAGS="gzip.def -s"
+#
+# release version, dynamically linked C runtime
+gccdyn:
+ $(MAKE) -f Makefile.os2 all \
+ CC="gcc -Zomf -Zmt" O=".obj" S=".S" \
+ AS="gcc -Zomf -xassembler-with-cpp -c -o" \
+ CFLAGS="-O" LDFLAGS="gzip.def -s"
+#
+# debugging version
+gccdebug:
+ $(MAKE) -f Makefile.os2 all \
+ CC="gcc -g" O=".o" S=".S" \
+ AS="gcc -g -xassembler-with-cpp -c -o" \
+ CFLAGS="" LDFLAGS="gzip.def"
+
+# compilation with MS C 6.00
+#
+# release version
+msc:
+ $(MAKE) -f Makefile.os2 all \
+ CC="cl -nologo -AC" O=".obj" S=".asm" \
+ AS="ml -nologo -Zm -Cp -c -Fo" \
+ CFLAGS=" -W1 -Zap -J -G2s -Ocegit" \
+ LDFLAGS="-Lp -F 2000 setargv.obj gzip16.def -link /noe"
+#
+# debugging version
+mscdebug:
+ $(MAKE) -f Makefile.os2 all \
+ CC="cl -nologo -AC -Zi" O=".obj" S=".asm" \
+ AS="ml -nologo -Zm -Zi -Cp -c -Fo" \
+ CFLAGS="-W1 -Zap -J -G2 -Od" \
+ LDFLAGS="-Lp -F 2000 setargv.obj gzip16.def -link /noe /exe"
+
+DEFS = -DOS2 -DASMV
+
+OBJS = gzip$O zip$O deflate$O trees$O bits$O unzip$O inflate$O util$O \
+ crypt$O lzw$O unlzw$O unpack$O unlzh$O getopt$O match$O
+
+.SUFFIXES: .c $O
+
+.c$O:
+ $(CC) $(CFLAGS) $(DEFS) -c $<
+
+all: gzip.exe gzip.info gzip.doc
+
+gzip.exe: $(OBJS)
+ $(CC) -o $@ $(OBJS) $(LDFLAGS)
+
+gzip$O zip$O deflate$O trees$O bits$O unzip$O inflate$O: gzip.h tailor.h
+util$O lzw$O unlzw$O unpack$O unlzh$O crypt$O: gzip.h tailor.h
+
+gzip$O unlzw$O: revision.h lzw.h
+
+bits$O unzip$O util$O zip$O: crypt.h
+
+match$O: match$S
+ $(AS) $@ match$S
+
+gzip.info: gzip.texi gpl.texinfo
+ makeinfo gzip.texi
+
+gzip.doc: gzip.1
+ groff -man gzip.1 > $@
--- /dev/null
+NAME GZIP WINDOWCOMPAT
+DESCRIPTION 'GNU gzip file compression program'
+STACKSIZE 0x80000
--- /dev/null
+NAME GZIP WINDOWCOMPAT NEWFILES
+DESCRIPTION 'GNU gzip file compression program'
--- /dev/null
+/* Gzip build file for Primos.
+/* author: Peter Eriksson, pen@lysator.liu.se
+/*
+type
+type 'Building GZIP for PRIMOS - Please Wait...'
+type
+&if ^ [exists *>PRIMOS>OBJ -dir] &then &do
+ type 'Creating *>PRIMOS>OBJ directory...'
+ type
+ create *>PRIMOS>OBJ
+ &end
+
+type 'Compiling...
+
+&set_var unit := 0
+
+/*
+&set_var cdefines := -debug
+
+como *>primos>compile.como
+&do file &items [wild *>@@.c -single unit]
+ &set_var filebase := [before %file% .]
+ &if ^ [exists *>primos>obj>%filebase%.bin] &then &do
+ type 'Compiling "'%file%'"...'
+ ci *>%file% -binary *>primos>obj>=.bin %cdefines% -optionsfile *>primos>ci.opts
+ &end
+&end
+close -unit %unit%
+&set_var unit := 0
+
+&do file &items [wild *>primos>@@.c -single unit]
+ &set_var filebase := [before %file% .]
+ &if ^ [exists *>primos>obj>%filebase%.bin] &then &do
+ type 'Compiling "'%file%'"...'
+ ci *>primos>%file% -binary *>primos>obj>=.bin %cdefines% -optionsfile *>primos>ci.opts
+ &end
+&end
+como -end
+
+type
+type
+type 'Binding...'
+
+&set_var unit := 0
+&data bind
+ li ccmain
+ load *>primos>obj>gzip
+ load *>primos>obj>bits
+ load *>primos>obj>crypt
+ load *>primos>obj>deflate
+ load *>primos>obj>getopt
+ load *>primos>obj>inflate
+ load *>primos>obj>lzw
+ load *>primos>obj>makecrc
+ load *>primos>obj>primos
+ load *>primos>obj>trees
+ load *>primos>obj>unlzw
+ load *>primos>obj>unpack
+ load *>primos>obj>unlzh
+ load *>primos>obj>unzip
+ load *>primos>obj>util
+ load *>primos>obj>zip
+ li c_lib
+ li
+ dynt -all
+ nwc
+ nitr
+ ntw
+ compress
+ file *>primos>gzip.run
+&end
+
+type
+type
+type 'All done. (Hopefully). The executable should be in *>PRIMOS>GZIP.RUN'
+&return
--- /dev/null
+-define PRIMOS
+-include *>PRIMOS>INCLUDE
+-ignoreregister
+-packbytes
+-sof
+
--- /dev/null
+/*
+** errno.h
+**
+** Emulation of the Unix errno.h header file for PRIMOS
+**
+** Author: Peter Eriksson <pen@lysator.liu.se>
+*/
+
+#ifndef __ERRNO_H__
+#define __ERRNO_H__
+
+#include <errd.h>
+
+#define ENOENT e$fntf
+
+#endif
+
--- /dev/null
+/*
+** fcntl.h
+**
+** Emulation of the Unix fcntl.h header file for PRIMOS
+**
+** Author: Peter Eriksson <pen@lysator.liu.se>
+*/
+
+#ifndef __FCNTL_H__
+#define __FCNTL_H__
+
+#define O_RDONLY 0
+#define O_WRONLY 1
+#define O_RDWR 2
+
+#define O_BINARY 0
+#define O_EXCL 0
+#define O_NDELAY 0
+#define O_CREAT 0
+#define O_TRUNC 0
+
+#endif
--- /dev/null
+/*
+** stdlib.h
+**
+** Emulation of the Unix stdlib.h header file for PRIMOS
+**
+** Author: Peter Eriksson <pen@lysator.liu.se>
+*/
+
+#ifndef __STDLIB_H__
+#define __STDLIB_H__
+
+extern char *malloc();
+extern char *calloc();
+
+#endif
+
--- /dev/null
+/*
+** sys/stat.h
+**
+** Emulation of the Unix sys/stat.h header file for PRIMOS
+**
+** Author: Peter Eriksson <pen@lysator.liu.se>
+*/
+
+#ifndef __SYS_STAT_H__
+#define __SYS_STAT_H__
+
+
+#include <sys/types.h>
+
+struct stat {
+ /* First some PRIMOS standard entries */
+ off_t st_size;
+ time_t st_mtime;
+ short st_type; /* Primos file type */
+ short st_rwlock; /* Primos read/write lock */
+
+ /* Begin Unix compatibility - don't believe these entries! */
+ dev_t st_dev;
+ ino_t st_ino;
+ mode_t st_mode;
+ short st_nlink;
+ uid_t st_uid;
+ gid_t st_gid;
+ dev_t st_rdev;
+ time_t st_atime;
+ time_t st_ctime;
+ long st_blksize;
+ long st_blocks;
+};
+
+#define _IFMT 0170000 /* type of file */
+#define _IFREG 0100000 /* regular */
+#define _IFDIR 0040000 /* directory */
+
+/* Some stupid programs check if these are defined and then
+ believe these are supported in the OS - not so in PRIMOS ... */
+#ifndef __50SERIES
+# define _IFCHR 0020000
+# define _IFBLK 0060000
+# define _IFLNK 0120000
+# define _IFSOCK 0140000
+# define _IFIFO 0010000
+#endif
+
+#define S_ISUID 0004000
+#define S_ISGID 0002000
+#define S_ISVTX 0001000
+#define S_IREAD 0000400
+#define S_IWRITE 0000200
+#define S_IEXEC 0000100
+
+#define S_ENFMT 0002000
+
+#define S_IFMT _IFMT
+#define S_IFREG _IFREG
+#define S_IFDIR _IFDIR
+#ifndef __50SERIES
+# define S_IFCHR _IFCHR
+# define S_IFBLK _IFBLK
+# define S_IFLNK _IFLNK
+# define S_IFSOCK _IFSOCK
+# define S_IFIFO _IFIFO
+#endif
+
+#define S_IRWXU 0000700
+#define S_IRUSR 0000400
+#define S_IWUSR 0000200
+#define S_IXUSR 0000100
+#define S_IRWXG 0000070
+#define S_IRGRP 0000040
+#define S_IWGRP 0000020
+#define S_IXGRP 0000010
+#define S_IRWXO 0000007
+#define S_IROTH 0000004
+#define S_IWOTH 0000002
+#define S_IXOTH 0000001
+
+#define S_ISREG(m) (((m) & _IFMT) == _IFREG)
+#define S_ISDIR(m) (((m) & _IFMT) == _IFDIR)
+#ifndef __50SERIES
+# define S_ISBLK(m) (((m) & _IFMT) == _IFBLK)
+# define S_ISCHR(m) (((m) & _IFMT) == _IFCHR)
+# define S_ISFIFO(m) (((m) & _IFMT) == _IFIFO)
+#endif
+
+
+#endif
--- /dev/null
+/*
+** sys/types.h
+**
+** Emulation of the Unix sys/types.h header file for PRIMOS
+**
+** Author: Peter Eriksson <pen@lysator.liu.se>
+*/
+
+#ifndef __SYS_TYPES_H__
+#define __SYS_TYPES_H__
+
+typedef long size_t;
+typedef long time_t;
+
+typedef long off_t;
+typedef short dev_t;
+typedef short ino_t;
+typedef short mode_t;
+typedef short uid_t;
+typedef short gid_t;
+
+typedef char *caddr_t;
+
+#endif
+
--- /dev/null
+/*
+** primos.c
+**
+** This file contains emulation routines for some common Unix functions
+**
+** Author: Peter Eriksson <pen@lysator.liu.se>
+*/
+
+#ifdef __50SERIES
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+
+uid_t primos_uid = 42;
+gid_t primos_gid = 42;
+mode_t primos_mode = 600;
+
+/* Dummy do-nothing routine for chmod() */
+int chmod(path, mode)
+ char *path;
+ int mode;
+{
+ return 0;
+}
+
+char *getenv(var)
+ char *var;
+{
+ char buf[256];
+ extern char *gvget();
+
+ buf[0] = '.';
+ strcpy(buf+1, var);
+
+ return gvget(buf);
+}
+
+
+unlink(path)
+ char *path;
+{
+ return delete(path);
+}
+
+int lstat(path, buf)
+ char *path;
+ struct stat *buf;
+{
+ return stat(path, buf);
+}
+
+int stat(path, buf)
+ char *path;
+ struct stat *buf;
+{
+ buf->st_dev = 1;
+ buf->st_ino = 1;
+ buf->st_nlink = 1;
+ buf->st_uid = primos_uid;
+ buf->st_gid = primos_gid;
+ buf->st_rdev = 1;
+ buf->st_blksize = 2048;
+
+ buf->st_rwlock = frwlock(path);
+ switch (buf->st_type = ftype(path))
+ {
+ case 0:
+ case 1:
+ /* Regular file (SAM or DAM) */
+ buf->st_size = fsize(path);
+ buf->st_mtime = fdtm(path);
+
+ buf->st_mode = S_IFREG|primos_mode;
+ break;
+
+ case 4:
+ buf->st_size = 0;
+ buf->st_mtime = fdtm(path);
+
+ buf->st_mode = S_IFDIR|primos_mode;
+ break;
+
+ case -1:
+ return -1;
+
+ default:
+ buf->st_mode = primos_mode;
+ buf->st_size = fsize(path);
+ buf->st_mtime = fdtm(path);
+ }
+
+ buf->st_blocks = (buf->st_size-1) / buf->st_blksize + 1;
+
+ /* Should be fixed to really fetch these values, but that
+ * would require calling some PRIMOS subroutines and I don't have
+ * a copy of the Primos Subroutine reference manuals here..
+ */
+ buf->st_atime = buf->st_mtime;
+ buf->st_ctime = buf->st_mtime;
+
+ return 0;
+}
+
+int fstat(fd, buf)
+ int fd;
+ struct stat *buf;
+{
+ char path[1025];
+
+ return stat(getname(fd, path), buf);
+}
+
+int ascii2pascii(c)
+ int c;
+{
+ return (c ? (c | 0x80) : '\0');
+}
+
+
+#endif /* __50SERIES */
--- /dev/null
+To build GZIP for PRIMOS you should just have to type:
+
+ r *>primos>build
+
+while standing in the directory above this PRIMOS subdirectory.
+
+If the files in these directories looks strange, then it might be
+because they are in normal ASCII. You'll need to convert them into
+PASCII before you will be able to build the GZIP executable.
+
+You can find a simple ASCII to PASCII converter via anonymous FTP
+from "ftp.lysator.liu.se" in the directory "pub/primos/run" as
+the file "topascii.run".
+
+You can reach me at a number of places in case there are any bugs
+in this port to report...
+
+ Email:
+
+ pen@signum.se Signum is a company giving support for
+ Free Software. Call/Mail us if you're
+ interrested! (Phone: +46-13-21-46-00)
+
+ pen@lysator.liu.se Lysator is a computer society at the
+ Linkoping University in Sweden.
+
+Peter Eriksson, 25 May 1993
--- /dev/null
+/* revision.h -- define the version number
+ * Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#define PATCHLEVEL 0
+#define REVDATE "2001-11-03"
+
+/* This version does not support compression into old compress format: */
+#ifdef LZW
+# undef LZW
+#endif
+
+/* $Id: revision.h,v 0.25 1993/06/24 08:29:52 jloup Exp $ */
--- /dev/null
+/* Determine whether string value is affirmation or negative response
+ according to current locale's data.
+ Copyright (C) 1996, 1998, 2000 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#if STDC_HEADERS || _LIBC
+# include <stddef.h>
+# include <stdlib.h>
+#else
+# ifndef NULL
+# define NULL 0
+# endif
+#endif
+
+#if ENABLE_NLS
+# include <sys/types.h>
+# if HAVE_LIMITS_H
+# include <limits.h>
+# endif
+# include <regex.h>
+# include <libintl.h>
+# define _(Text) gettext (Text)
+
+static int
+try (const char *response, const char *pattern, const int match,
+ const int nomatch, const char **lastp, regex_t *re)
+{
+ if (pattern != *lastp)
+ {
+ /* The pattern has changed. */
+ if (*lastp)
+ {
+ /* Free the old compiled pattern. */
+ regfree (re);
+ *lastp = NULL;
+ }
+ /* Compile the pattern and cache it for future runs. */
+ if (regcomp (re, pattern, REG_EXTENDED) != 0)
+ return -1;
+ *lastp = pattern;
+ }
+
+ /* See if the regular expression matches RESPONSE. */
+ return regexec (re, response, 0, NULL, 0) == 0 ? match : nomatch;
+}
+#endif
+
+
+int
+rpmatch (const char *response)
+{
+#if ENABLE_NLS
+ /* Match against one of the response patterns, compiling the pattern
+ first if necessary. */
+
+ /* We cache the response patterns and compiled regexps here. */
+ static const char *yesexpr, *noexpr;
+ static regex_t yesre, nore;
+ int result;
+
+ return ((result = try (response, _("^[yY]"), 1, 0,
+ &yesexpr, &yesre))
+ ? result
+ : try (response, _("^[nN]"), 0, -1, &noexpr, &nore));
+#else
+ /* Test against "^[yY]" and "^[nN]", hardcoded to avoid requiring regex */
+ return (*response == 'y' || *response == 'Y' ? 1
+ : *response == 'n' || *response == 'N' ? 0 : -1);
+#endif
+}
--- /dev/null
+/* add.c not copyrighted (n) 1993 by Mark Adler */
+/* version 1.1 11 Jun 1993 */
+
+/* This filter reverses the effect of the sub filter. It requires no
+ arguments, since sub puts the information necessary for extraction
+ in the stream. See sub.c for what the filtering is and what it's
+ good for. */
+
+#include <stdio.h>
+
+#define MAGIC1 'S' /* sub data */
+#define MAGIC2 26 /* ^Z */
+#define MAX_DIST 16384
+
+char a[MAX_DIST]; /* last byte buffer for up to MAX_DIST differences */
+
+int main()
+{
+ int n; /* number of differences */
+ int i; /* difference counter */
+ int c; /* byte from input */
+
+ /* check magic word */
+ if (getchar() != MAGIC1 || getchar() != MAGIC2)
+ {
+ fputs("add: input stream not made by sub\n", stderr);
+ exit(1);
+ }
+
+ /* get number of differences from data */
+ if ((n = getchar()) == EOF || (i = getchar()) == EOF) {
+ fputs("add: unexpected end of file\n", stderr);
+ exit(1);
+ }
+ n += (i<<8);
+ if (n <= 0 || n > MAX_DIST) {
+ fprintf(stderr, "add: incorrect distance %d\n", n);
+ exit(1);
+ }
+
+ /* initialize last byte */
+ i = n;
+ do {
+ a[--i] = 0;
+ } while (i);
+
+ /* read differenced data and restore original */
+ while ((c = getchar()) != EOF)
+ {
+ c = (a[i++] += c) & 0xff; /* restore data, save last byte */
+ putchar(c); /* write original */
+ if (i == n) /* cycle on n differences */
+ i = 0;
+ }
+ exit(0);
+ return 0; /* avoid warning */
+}
--- /dev/null
+/* Not copyrighted 1990 Mark Adler */
+
+#ifndef lint
+static char rcsid[] = "$Id: makecrc.c,v 0.6 1993/05/28 07:42:59 jloup Exp $";
+#endif
+
+#include <stdio.h>
+
+main()
+/*
+ Generate a table for a byte-wise 32-bit CRC calculation on the polynomial:
+ x^32+x^26+x^23+x^22+x^16+x^12+x^11+x^10+x^8+x^7+x^5+x^4+x^2+x+1.
+
+ Polynomials over GF(2) are represented in binary, one bit per coefficient,
+ with the lowest powers in the most significant bit. Then adding polynomials
+ is just exclusive-or, and multiplying a polynomial by x is a right shift by
+ one. If we call the above polynomial p, and represent a byte as the
+ polynomial q, also with the lowest power in the most significant bit (so the
+ byte 0xb1 is the polynomial x^7+x^3+x+1), then the CRC is (q*x^32) mod p,
+ where a mod b means the remainder after dividing a by b.
+
+ This calculation is done using the shift-register method of multiplying and
+ taking the remainder. The register is initialized to zero, and for each
+ incoming bit, x^32 is added mod p to the register if the bit is a one (where
+ x^32 mod p is p+x^32 = x^26+...+1), and the register is multiplied mod p by
+ x (which is shifting right by one and adding x^32 mod p if the bit shifted
+ out is a one). We start with the highest power (least significant bit) of
+ q and repeat for all eight bits of q.
+
+ The table is simply the CRC of all possible eight bit values. This is all
+ the information needed to generate CRC's on data a byte at a time for all
+ combinations of CRC register values and incoming bytes. The table is
+ written to stdout as 256 long hexadecimal values in C language format.
+*/
+{
+ unsigned long c; /* crc shift register */
+ unsigned long e; /* polynomial exclusive-or pattern */
+ int i; /* counter for all possible eight bit values */
+ int k; /* byte being shifted into crc apparatus */
+
+ /* terms of polynomial defining this crc (except x^32): */
+ static int p[] = {0,1,2,4,5,7,8,10,11,12,16,22,23,26};
+
+ /* Make exclusive-or pattern from polynomial (0xedb88320) */
+ e = 0;
+ for (i = 0; i < sizeof(p)/sizeof(int); i++)
+ e |= 1L << (31 - p[i]);
+
+ /* Compute and print table of CRC's, five per line */
+ printf(" 0x00000000L");
+ for (i = 1; i < 256; i++)
+ {
+ c = i;
+ /* The idea to initialize the register with the byte instead of
+ * zero was stolen from Haruhiko Okumura's ar002
+ */
+ for (k = 8; k; k--)
+ c = c & 1 ? (c >> 1) ^ e : c >> 1;
+ printf(i % 5 ? ", 0x%08lxL" : ",\n 0x%08lxL", c);
+ }
+ putchar('\n');
+ return 0;
+}
--- /dev/null
+/* sub.c not copyrighted (n) 1993 by Mark Adler */
+/* version 1.1 11 Jun 1993 */
+
+/* sub is a simple filter to preprocess a data file before compression.
+ It can increase compression for data whose points tend to be close to
+ the last point. The output is the difference of successive bytes of
+ the input. The add filter is used to undo what sub does. This could
+ be used on 8-bit sound or graphics data.
+
+ sub can also take an argument to apply this to interleaved sets of
+ bytes. For example, if the data are 16-bit sound samples, then you
+ can use "sub 2" to take differences on the low-byte stream and the
+ high-byte stream. (This gives nearly the same effect as subtracting
+ the 16-bit values, but avoids the complexities of endianess of the
+ data.) The concept extends to RGB image data (sub 3), 16-bit stereo
+ data (sub 4), floating point data (sub 4 or sub 8), etc.
+
+ add takes no options, since the number of interleaved byte streams
+ is put in the first two bytes of the output stream for add to use
+ (in little-endian format).
+
+ Examples:
+
+ sub < graph.vga | gzip -9 > graph.vga.sgz
+ sub < phone.snd | gzip -9 > phone.snd.sgz
+ sub 2 < audio.snd | gzip -9 > audio.snd.sgz
+ sub 3 < picture.rgb | gzip -9 > picture.rgb.sgz
+ sub 4 < stereo.snd | gzip -9 > stereo.snd.sgz
+ sub 8 < double.data | gzip -9 > double.data.sgz
+
+ To expand, use the reverse operation, as in:
+
+ gunzip < double.data.sgz | add > double.data
+*/
+
+#include <stdio.h>
+
+#define MAGIC1 'S' /* sub data */
+#define MAGIC2 26 /* ^Z */
+#define MAX_DIST 16384
+
+char a[MAX_DIST]; /* last byte buffer for up to MAX_DIST differences */
+
+int main(argc, argv)
+ int argc;
+ char **argv;
+{
+ int n = 1; /* number of differences */
+ int i; /* difference counter */
+ int c; /* byte from input */
+ int atoi(); /* (avoid including stdlib for portability) */
+
+ /* process arguments */
+ if (argc > 2)
+ {
+ fputs("sub: only one argument needed--# of differences\n", stderr);
+ exit(1);
+ }
+ if (argc > 1)
+ n = atoi(argv[1]);
+
+ if (n < 0) n = -n; /* tolerate "sub -2" */
+ if (n == 0 || n > MAX_DIST) {
+ fputs("sub: incorrect distance\n", stderr);
+ exit(1);
+ }
+
+ /* initialize last byte */
+ i = n;
+ do {
+ a[--i] = 0;
+ } while (i);
+
+ /* write differenced data */
+ putchar(MAGIC1); putchar(MAGIC2); /* magic word for add */
+ putchar(n & 0xff); /* so add knows what to do */
+ putchar((n>>8) & 0xff);
+
+ while ((c = getchar()) != EOF)
+ {
+ putchar((c - a[i]) & 0xff); /* write difference */
+ a[i++] = c; /* save last byte */
+ if (i == n) /* cycle on n differences */
+ i = 0;
+ }
+ exit(0);
+ return 0; /* avoid warning */
+}
--- /dev/null
+#!/bin/sh
+
+if test $# = 0; then
+ echo 'zfile: file(1) for programs which may be compressed with gzexe'
+ echo usage: `basename $0` files...
+ exit 1
+fi
+
+tmp=/tmp/gz$$
+
+for i do
+ if test ! -f "$i" ; then
+ echo `basename $0`: $i not a file
+ res=1
+ continue
+ fi
+ skip=18
+ if sed -e 1d -e 2q "$i" | grep "^skip=[0-9]*$" >/dev/null; then
+ eval `sed -e 1d -e 2q "$i"`
+ fi
+ if tail +$skip "$i" | gzip --list >/dev/null 2>&1; then
+ tail +$skip "$i" | gzip -cd | dd count=1 >$tmp 2>/dev/null
+ file $tmp | sed "s|^$tmp|$i|"
+ else
+ file "$i"
+ fi
+ rm -f $tmp
+done
--- /dev/null
+#include <stdio.h>
+
+/* Trivial example of reading a gzip'ed file or gzip'ed standard input
+ * using stdio functions fread(), getc(), etc... fseek() is not supported.
+ * Modify according to your needs. You can easily construct the symmetric
+ * zwrite program.
+ *
+ * Usage: zread [file[.gz]]
+ * This programs assumes that gzip is somewhere in your path.
+ */
+int main(argc, argv)
+ int argc;
+ char **argv;
+{
+ FILE *infile;
+ char cmd[256];
+ char buf[BUFSIZ];
+ int n;
+
+ if (argc < 1 || argc > 2) {
+ fprintf(stderr, "usage: %s [file[.gz]]\n", argv[0]);
+ exit(1);
+ }
+ strcpy(cmd, "gzip -dc "); /* use "gzip -c" for zwrite */
+ if (argc == 2) {
+ strncat(cmd, argv[1], sizeof(cmd)-strlen(cmd));
+ }
+ infile = popen(cmd, "r"); /* use "w" for zwrite */
+ if (infile == NULL) {
+ fprintf(stderr, "%s: popen('%s', 'r') failed\n", argv[0], cmd);
+ exit(1);
+ }
+ /* Read one byte using getc: */
+ n = getc(infile);
+ if (n == EOF) {
+ pclose(infile);
+ exit(0);
+ }
+ putchar(n);
+
+ /* Read the rest using fread: */
+ for (;;) {
+ n = fread(buf, 1, BUFSIZ, infile);
+ if (n <= 0) break;
+ fwrite(buf, 1, n, stdout);
+ }
+ if (pclose(infile) != 0) {
+ fprintf(stderr, "%s: pclose failed\n", argv[0]);
+ exit(1);
+ }
+ exit(0);
+ return 0; /* just to make compiler happy */
+}
--- /dev/null
+#! /usr/local/bin/perl
+# Set the time stamp of a gzip'ed file from that stored in the file.
+# usage: ztouch files...
+
+foreach $file (@ARGV) {
+ open (FILE, $file);
+ read (FILE, $_, 8);
+ ($magic, $method, $flags, $time) = unpack ("A2C2V", $_);
+ if ($magic eq "\037\213") {
+ utime ($time, $time, $file);
+ }
+ else {
+ warn "$file is not compressed with gzip!\n";
+ }
+}
--- /dev/null
+/* tailor.h -- target dependent definitions
+ * Copyright (C) 1992-1993 Jean-loup Gailly.
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/* The target dependent definitions should be defined here only.
+ * The target dependent functions should be defined in tailor.c.
+ */
+
+/* $Id: tailor.h,v 0.18 1993/06/14 19:32:20 jloup Exp $ */
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+# define MSDOS
+#endif
+
+#if defined(__OS2__) && !defined(OS2)
+# define OS2
+#endif
+
+#if defined(OS2) && defined(MSDOS) /* MS C under OS/2 */
+# undef MSDOS
+#endif
+
+#ifdef MSDOS
+# ifdef __GNUC__
+ /* DJGPP version 1.09+ on MS-DOS.
+ * The DJGPP 1.09 stat() function must be upgraded before gzip will
+ * fully work.
+ * No need for HAVE_DIRENT_H, since <unistd.h> defines POSIX_SOURCE which
+ * implies HAVE_DIRENT_H.
+ */
+# define near
+# else
+# define MAXSEG_64K
+# ifdef __TURBOC__
+# define off_t long
+# ifdef __BORLANDC__
+# define HAVE_DIRENT_H
+# define HAVE_UTIME
+# endif
+# define HAVE_UTIME_H
+# else /* MSC */
+# define HAVE_SYS_UTIME_H
+# endif
+# endif
+# define PATH_SEP2 '\\'
+# define PATH_SEP3 ':'
+# define MAX_PATH_LEN 128
+# define NO_MULTIPLE_DOTS
+# define MAX_EXT_CHARS 3
+# define Z_SUFFIX "z"
+# define PROTO
+# define STDC_HEADERS
+# define NO_SIZE_CHECK
+# define UNLINK_READONLY_BUG
+# define casemap(c) tolow(c) /* Force file names to lower case */
+# include <io.h>
+# define OS_CODE 0x00
+# define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
+# if !defined(NO_ASM) && !defined(ASMV)
+# define ASMV
+# endif
+#else
+# define near
+#endif
+
+#ifdef OS2
+# define PATH_SEP2 '\\'
+# define PATH_SEP3 ':'
+# define MAX_PATH_LEN 260
+# ifdef OS2FAT
+# define NO_MULTIPLE_DOTS
+# define MAX_EXT_CHARS 3
+# define Z_SUFFIX "z"
+# define casemap(c) tolow(c)
+# endif
+# define PROTO
+# define STDC_HEADERS
+# define UNLINK_READONLY_BUG
+# include <io.h>
+# define OS_CODE 0x06
+# define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
+# ifdef _MSC_VER
+# define HAVE_SYS_UTIME_H
+# define MAXSEG_64K
+# undef near
+# define near _near
+# endif
+# ifdef __EMX__
+# define HAVE_SYS_UTIME_H
+# define HAVE_DIRENT_H
+# define EXPAND(argc,argv) \
+ {_response(&argc, &argv); _wildcard(&argc, &argv);}
+# endif
+# ifdef __BORLANDC__
+# define HAVE_DIRENT_H
+# define HAVE_UTIME_H
+# endif
+# ifdef __ZTC__
+# define NO_DIR
+# include <dos.h>
+# define EXPAND(argc,argv) \
+ {response_expand(&argc, &argv);}
+# endif
+#endif
+
+#ifdef WIN32 /* Windows NT */
+# define HAVE_SYS_UTIME_H
+# define PATH_SEP2 '\\'
+# define PATH_SEP3 ':'
+# define MAX_PATH_LEN 260
+# define PROTO
+# define STDC_HEADERS
+# define SET_BINARY_MODE(fd) setmode(fd, O_BINARY)
+# define UNLINK_READONLY_BUG
+# include <io.h>
+# include <malloc.h>
+# ifdef NTFAT
+# define NO_MULTIPLE_DOTS
+# define MAX_EXT_CHARS 3
+# define Z_SUFFIX "z"
+# define casemap(c) tolow(c) /* Force file names to lower case */
+# endif
+# define OS_CODE 0x0b
+#endif
+
+#ifdef MSDOS
+# ifdef __TURBOC__
+# include <alloc.h>
+# define DYN_ALLOC
+ /* Turbo C 2.0 does not accept static allocations of large arrays */
+ void * fcalloc (unsigned items, unsigned size);
+ void fcfree (void *ptr);
+# else /* MSC */
+# include <malloc.h>
+# define fcalloc(nitems,itemsize) halloc((long)(nitems),(itemsize))
+# define fcfree(ptr) hfree(ptr)
+# endif
+#else
+# ifdef MAXSEG_64K
+# define fcalloc(items,size) calloc((items),(size))
+# else
+# define fcalloc(items,size) malloc((size_t)(items)*(size_t)(size))
+# endif
+# define fcfree(ptr) free(ptr)
+#endif
+
+#if defined(VAXC) || defined(VMS)
+# define PATH_SEP ']'
+# define PATH_SEP2 ':'
+# define SUFFIX_SEP ';'
+# define NO_MULTIPLE_DOTS
+# define Z_SUFFIX "-gz"
+# define RECORD_IO 1
+# define casemap(c) tolow(c)
+# define OS_CODE 0x02
+# define OPTIONS_VAR "GZIP_OPT"
+# define STDC_HEADERS
+# define EXPAND(argc,argv) vms_expand_args(&argc,&argv);
+# include <file.h>
+# define unlink delete
+# ifdef VAXC
+# include <unixio.h>
+# else
+# define HAVE_FCNTL_H
+# endif
+#endif
+
+#ifdef AMIGA
+# define PATH_SEP2 ':'
+# define STDC_HEADERS
+# define OS_CODE 0x01
+# define ASMV
+# ifdef __GNUC__
+# define HAVE_DIRENT_H
+# define HAVE_FCNTL_H
+# define HAVE_UNISTD_H
+# define HAVE_CHOWN
+# define HAVE_LSTAT
+# else /* SASC */
+# define NO_STDIN_FSTAT
+# define HAVE_SYS_DIR_H
+# include <fcntl.h> /* for read() and write() */
+# define direct dirent
+ extern void _expand_args(int *argc, char ***argv);
+# define EXPAND(argc,argv) _expand_args(&argc,&argv);
+# undef O_BINARY /* disable useless --ascii option */
+# endif
+#endif
+
+#if defined(ATARI) || defined(atarist)
+# ifndef STDC_HEADERS
+# define STDC_HEADERS
+# define HAVE_UNISTD_H
+# define HAVE_DIRENT_H
+# endif
+# define ASMV
+# define OS_CODE 0x05
+# ifdef TOSFS
+# define PATH_SEP2 '\\'
+# define PATH_SEP3 ':'
+# define MAX_PATH_LEN 128
+# define NO_MULTIPLE_DOTS
+# define MAX_EXT_CHARS 3
+# define Z_SUFFIX "z"
+# define casemap(c) tolow(c) /* Force file names to lower case */
+# endif
+#endif
+
+#ifdef MACOS
+# define PATH_SEP ':'
+# define DYN_ALLOC
+# define PROTO
+# define NO_STDIN_FSTAT
+# define chmod(file, mode) (0)
+# define OPEN(name, flags, mode) open(name, flags)
+# define OS_CODE 0x07
+# ifdef MPW
+# define isatty(fd) ((fd) <= 2)
+# endif
+#endif
+
+#ifdef __50SERIES /* Prime/PRIMOS */
+# define PATH_SEP '>'
+# define STDC_HEADERS
+# define NO_STDIN_FSTAT
+# define NO_SIZE_CHECK
+# define RECORD_IO 1
+# define casemap(c) tolow(c) /* Force file names to lower case */
+# define put_char(c) put_byte((c) & 0x7F)
+# define get_char(c) ascii2pascii(get_byte())
+# define OS_CODE 0x0F /* temporary, subject to change */
+# ifdef SIGTERM
+# undef SIGTERM /* We don't want a signal handler for SIGTERM */
+# endif
+#endif
+
+#if defined(pyr) && !defined(NOMEMCPY) /* Pyramid */
+# define NOMEMCPY /* problem with overlapping copies */
+#endif
+
+#ifdef TOPS20
+# define OS_CODE 0x0a
+#endif
+
+#ifndef unix
+# define NO_ST_INO /* don't rely on inode numbers */
+#endif
+
+
+ /* Common defaults */
+
+#ifndef OS_CODE
+# define OS_CODE 0x03 /* assume Unix */
+#endif
+
+#ifndef PATH_SEP
+# define PATH_SEP '/'
+#endif
+
+#ifndef casemap
+# define casemap(c) (c)
+#endif
+
+#ifndef OPTIONS_VAR
+# define OPTIONS_VAR "GZIP"
+#endif
+
+#ifndef Z_SUFFIX
+# define Z_SUFFIX ".gz"
+#endif
+
+#ifdef MAX_EXT_CHARS
+# define MAX_SUFFIX MAX_EXT_CHARS
+#else
+# define MAX_SUFFIX 30
+#endif
+
+#ifndef MAKE_LEGAL_NAME
+# ifdef NO_MULTIPLE_DOTS
+# define MAKE_LEGAL_NAME(name) make_simple_name(name)
+# else
+# define MAKE_LEGAL_NAME(name)
+# endif
+#endif
+
+#ifndef MIN_PART
+# define MIN_PART 3
+ /* keep at least MIN_PART chars between dots in a file name. */
+#endif
+
+#ifndef EXPAND
+# define EXPAND(argc,argv)
+#endif
+
+#ifndef RECORD_IO
+# define RECORD_IO 0
+#endif
+
+#ifndef SET_BINARY_MODE
+# define SET_BINARY_MODE(fd)
+#endif
+
+#ifndef OPEN
+# define OPEN(name, flags, mode) open(name, flags, mode)
+#endif
+
+#ifndef get_char
+# define get_char() get_byte()
+#endif
+
+#ifndef put_char
+# define put_char(c) put_byte(c)
+#endif
--- /dev/null
+% texinfo.tex -- TeX macros to handle Texinfo files.
+%
+% Load plain if necessary, i.e., if running under initex.
+\expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
+%
+\def\texinfoversion{2001-07-25.07}
+%
+% Copyright (C) 1985, 86, 88, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
+% 2000, 01 Free Software Foundation, Inc.
+%
+% This texinfo.tex file is free software; you can redistribute it and/or
+% modify it under the terms of the GNU General Public License as
+% published by the Free Software Foundation; either version 2, or (at
+% your option) any later version.
+%
+% This texinfo.tex file is distributed in the hope that it will be
+% useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+% of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+% General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this texinfo.tex file; see the file COPYING. If not, write
+% to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+% Boston, MA 02111-1307, USA.
+%
+% In other words, you are welcome to use, share and improve this program.
+% You are forbidden to forbid anyone else to use, share and improve
+% what you give them. Help stamp out software-hoarding!
+%
+% Please try the latest version of texinfo.tex before submitting bug
+% reports; you can get the latest version from:
+% ftp://ftp.gnu.org/gnu/texinfo.tex
+% (and all GNU mirrors, see http://www.gnu.org/order/ftp.html)
+% ftp://texinfo.org/tex/texinfo.tex
+% ftp://us.ctan.org/macros/texinfo/texinfo.tex
+% (and all CTAN mirrors, finger ctan@us.ctan.org for a list).
+% /home/gd/gnu/doc/texinfo.tex on the GNU machines.
+% The texinfo.tex in any given Texinfo distribution could well be out
+% of date, so if that's what you're using, please check.
+% Texinfo has a small home page at http://texinfo.org/.
+%
+% Send bug reports to bug-texinfo@gnu.org. Please include including a
+% complete document in each bug report with which we can reproduce the
+% problem. Patches are, of course, greatly appreciated.
+%
+% To process a Texinfo manual with TeX, it's most reliable to use the
+% texi2dvi shell script that comes with the distribution. For a simple
+% manual foo.texi, however, you can get away with this:
+% tex foo.texi
+% texindex foo.??
+% tex foo.texi
+% tex foo.texi
+% dvips foo.dvi -o # or whatever, to process the dvi file; this makes foo.ps.
+% The extra runs of TeX get the cross-reference information correct.
+% Sometimes one run after texindex suffices, and sometimes you need more
+% than two; texi2dvi does it as many times as necessary.
+%
+% It is possible to adapt texinfo.tex for other languages. You can get
+% the existing language-specific files from ftp://ftp.gnu.org/gnu/texinfo/.
+
+\message{Loading texinfo [version \texinfoversion]:}
+
+% If in a .fmt file, print the version number
+% and turn on active characters that we couldn't do earlier because
+% they might have appeared in the input file name.
+\everyjob{\message{[Texinfo version \texinfoversion]}%
+ \catcode`+=\active \catcode`\_=\active}
+
+% Save some parts of plain tex whose names we will redefine.
+\let\ptexb=\b
+\let\ptexbullet=\bullet
+\let\ptexc=\c
+\let\ptexcomma=\,
+\let\ptexdot=\.
+\let\ptexdots=\dots
+\let\ptexend=\end
+\let\ptexequiv=\equiv
+\let\ptexexclam=\!
+\let\ptexi=\i
+\let\ptexlbrace=\{
+\let\ptexrbrace=\}
+\let\ptexstar=\*
+\let\ptext=\t
+
+% We never want plain's outer \+ definition in Texinfo.
+% For @tex, we can use \tabalign.
+\let\+ = \relax
+
+\message{Basics,}
+\chardef\other=12
+
+% If this character appears in an error message or help string, it
+% starts a new line in the output.
+\newlinechar = `^^J
+
+% Set up fixed words for English if not already set.
+\ifx\putwordAppendix\undefined \gdef\putwordAppendix{Appendix}\fi
+\ifx\putwordChapter\undefined \gdef\putwordChapter{Chapter}\fi
+\ifx\putwordfile\undefined \gdef\putwordfile{file}\fi
+\ifx\putwordin\undefined \gdef\putwordin{in}\fi
+\ifx\putwordIndexIsEmpty\undefined \gdef\putwordIndexIsEmpty{(Index is empty)}\fi
+\ifx\putwordIndexNonexistent\undefined \gdef\putwordIndexNonexistent{(Index is nonexistent)}\fi
+\ifx\putwordInfo\undefined \gdef\putwordInfo{Info}\fi
+\ifx\putwordInstanceVariableof\undefined \gdef\putwordInstanceVariableof{Instance Variable of}\fi
+\ifx\putwordMethodon\undefined \gdef\putwordMethodon{Method on}\fi
+\ifx\putwordNoTitle\undefined \gdef\putwordNoTitle{No Title}\fi
+\ifx\putwordof\undefined \gdef\putwordof{of}\fi
+\ifx\putwordon\undefined \gdef\putwordon{on}\fi
+\ifx\putwordpage\undefined \gdef\putwordpage{page}\fi
+\ifx\putwordsection\undefined \gdef\putwordsection{section}\fi
+\ifx\putwordSection\undefined \gdef\putwordSection{Section}\fi
+\ifx\putwordsee\undefined \gdef\putwordsee{see}\fi
+\ifx\putwordSee\undefined \gdef\putwordSee{See}\fi
+\ifx\putwordShortTOC\undefined \gdef\putwordShortTOC{Short Contents}\fi
+\ifx\putwordTOC\undefined \gdef\putwordTOC{Table of Contents}\fi
+%
+\ifx\putwordMJan\undefined \gdef\putwordMJan{January}\fi
+\ifx\putwordMFeb\undefined \gdef\putwordMFeb{February}\fi
+\ifx\putwordMMar\undefined \gdef\putwordMMar{March}\fi
+\ifx\putwordMApr\undefined \gdef\putwordMApr{April}\fi
+\ifx\putwordMMay\undefined \gdef\putwordMMay{May}\fi
+\ifx\putwordMJun\undefined \gdef\putwordMJun{June}\fi
+\ifx\putwordMJul\undefined \gdef\putwordMJul{July}\fi
+\ifx\putwordMAug\undefined \gdef\putwordMAug{August}\fi
+\ifx\putwordMSep\undefined \gdef\putwordMSep{September}\fi
+\ifx\putwordMOct\undefined \gdef\putwordMOct{October}\fi
+\ifx\putwordMNov\undefined \gdef\putwordMNov{November}\fi
+\ifx\putwordMDec\undefined \gdef\putwordMDec{December}\fi
+%
+\ifx\putwordDefmac\undefined \gdef\putwordDefmac{Macro}\fi
+\ifx\putwordDefspec\undefined \gdef\putwordDefspec{Special Form}\fi
+\ifx\putwordDefvar\undefined \gdef\putwordDefvar{Variable}\fi
+\ifx\putwordDefopt\undefined \gdef\putwordDefopt{User Option}\fi
+\ifx\putwordDeftypevar\undefined\gdef\putwordDeftypevar{Variable}\fi
+\ifx\putwordDeffunc\undefined \gdef\putwordDeffunc{Function}\fi
+\ifx\putwordDeftypefun\undefined\gdef\putwordDeftypefun{Function}\fi
+
+% Ignore a token.
+%
+\def\gobble#1{}
+
+\hyphenation{ap-pen-dix}
+\hyphenation{mini-buf-fer mini-buf-fers}
+\hyphenation{eshell}
+\hyphenation{white-space}
+
+% Margin to add to right of even pages, to left of odd pages.
+\newdimen \bindingoffset
+\newdimen \normaloffset
+\newdimen\pagewidth \newdimen\pageheight
+
+% Sometimes it is convenient to have everything in the transcript file
+% and nothing on the terminal. We don't just call \tracingall here,
+% since that produces some useless output on the terminal.
+%
+\def\gloggingall{\begingroup \globaldefs = 1 \loggingall \endgroup}%
+\ifx\eTeXversion\undefined
+\def\loggingall{\tracingcommands2 \tracingstats2
+ \tracingpages1 \tracingoutput1 \tracinglostchars1
+ \tracingmacros2 \tracingparagraphs1 \tracingrestores1
+ \showboxbreadth\maxdimen\showboxdepth\maxdimen
+}%
+\else
+\def\loggingall{\tracingcommands3 \tracingstats2
+ \tracingpages1 \tracingoutput1 \tracinglostchars1
+ \tracingmacros2 \tracingparagraphs1 \tracingrestores1
+ \tracingscantokens1 \tracingassigns1 \tracingifs1
+ \tracinggroups1 \tracingnesting2
+ \showboxbreadth\maxdimen\showboxdepth\maxdimen
+}%
+\fi
+
+% add check for \lastpenalty to plain's definitions. If the last thing
+% we did was a \nobreak, we don't want to insert more space.
+%
+\def\smallbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\smallskipamount
+ \removelastskip\penalty-50\smallskip\fi\fi}
+\def\medbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\medskipamount
+ \removelastskip\penalty-100\medskip\fi\fi}
+\def\bigbreak{\ifnum\lastpenalty<10000\par\ifdim\lastskip<\bigskipamount
+ \removelastskip\penalty-200\bigskip\fi\fi}
+
+% For @cropmarks command.
+% Do @cropmarks to get crop marks.
+%
+\newif\ifcropmarks
+\let\cropmarks = \cropmarkstrue
+%
+% Dimensions to add cropmarks at corners.
+% Added by P. A. MacKay, 12 Nov. 1986
+%
+\newdimen\outerhsize \newdimen\outervsize % set by the paper size routines
+\newdimen\cornerlong \cornerlong=1pc
+\newdimen\cornerthick \cornerthick=.3pt
+\newdimen\topandbottommargin \topandbottommargin=.75in
+
+% Main output routine.
+\chardef\PAGE = 255
+\output = {\onepageout{\pagecontents\PAGE}}
+
+\newbox\headlinebox
+\newbox\footlinebox
+
+% \onepageout takes a vbox as an argument. Note that \pagecontents
+% does insertions, but you have to call it yourself.
+\def\onepageout#1{%
+ \ifcropmarks \hoffset=0pt \else \hoffset=\normaloffset \fi
+ %
+ \ifodd\pageno \advance\hoffset by \bindingoffset
+ \else \advance\hoffset by -\bindingoffset\fi
+ %
+ % Do this outside of the \shipout so @code etc. will be expanded in
+ % the headline as they should be, not taken literally (outputting ''code).
+ \setbox\headlinebox = \vbox{\let\hsize=\pagewidth \makeheadline}%
+ \setbox\footlinebox = \vbox{\let\hsize=\pagewidth \makefootline}%
+ %
+ {%
+ % Have to do this stuff outside the \shipout because we want it to
+ % take effect in \write's, yet the group defined by the \vbox ends
+ % before the \shipout runs.
+ %
+ \escapechar = `\\ % use backslash in output files.
+ \indexdummies % don't expand commands in the output.
+ \normalturnoffactive % \ in index entries must not stay \, e.g., if
+ % the page break happens to be in the middle of an example.
+ \shipout\vbox{%
+ % Do this early so pdf references go to the beginning of the page.
+ \ifpdfmakepagedest \pdfmkdest{\the\pageno} \fi
+ %
+ \ifcropmarks \vbox to \outervsize\bgroup
+ \hsize = \outerhsize
+ \vskip-\topandbottommargin
+ \vtop to0pt{%
+ \line{\ewtop\hfil\ewtop}%
+ \nointerlineskip
+ \line{%
+ \vbox{\moveleft\cornerthick\nstop}%
+ \hfill
+ \vbox{\moveright\cornerthick\nstop}%
+ }%
+ \vss}%
+ \vskip\topandbottommargin
+ \line\bgroup
+ \hfil % center the page within the outer (page) hsize.
+ \ifodd\pageno\hskip\bindingoffset\fi
+ \vbox\bgroup
+ \fi
+ %
+ \unvbox\headlinebox
+ \pagebody{#1}%
+ \ifdim\ht\footlinebox > 0pt
+ % Only leave this space if the footline is nonempty.
+ % (We lessened \vsize for it in \oddfootingxxx.)
+ % The \baselineskip=24pt in plain's \makefootline has no effect.
+ \vskip 2\baselineskip
+ \unvbox\footlinebox
+ \fi
+ %
+ \ifcropmarks
+ \egroup % end of \vbox\bgroup
+ \hfil\egroup % end of (centering) \line\bgroup
+ \vskip\topandbottommargin plus1fill minus1fill
+ \boxmaxdepth = \cornerthick
+ \vbox to0pt{\vss
+ \line{%
+ \vbox{\moveleft\cornerthick\nsbot}%
+ \hfill
+ \vbox{\moveright\cornerthick\nsbot}%
+ }%
+ \nointerlineskip
+ \line{\ewbot\hfil\ewbot}%
+ }%
+ \egroup % \vbox from first cropmarks clause
+ \fi
+ }% end of \shipout\vbox
+ }% end of group with \turnoffactive
+ \advancepageno
+ \ifnum\outputpenalty>-20000 \else\dosupereject\fi
+}
+
+\newinsert\margin \dimen\margin=\maxdimen
+
+\def\pagebody#1{\vbox to\pageheight{\boxmaxdepth=\maxdepth #1}}
+{\catcode`\@ =11
+\gdef\pagecontents#1{\ifvoid\topins\else\unvbox\topins\fi
+% marginal hacks, juha@viisa.uucp (Juha Takala)
+\ifvoid\margin\else % marginal info is present
+ \rlap{\kern\hsize\vbox to\z@{\kern1pt\box\margin \vss}}\fi
+\dimen@=\dp#1 \unvbox#1
+\ifvoid\footins\else\vskip\skip\footins\footnoterule \unvbox\footins\fi
+\ifr@ggedbottom \kern-\dimen@ \vfil \fi}
+}
+
+% Here are the rules for the cropmarks. Note that they are
+% offset so that the space between them is truly \outerhsize or \outervsize
+% (P. A. MacKay, 12 November, 1986)
+%
+\def\ewtop{\vrule height\cornerthick depth0pt width\cornerlong}
+\def\nstop{\vbox
+ {\hrule height\cornerthick depth\cornerlong width\cornerthick}}
+\def\ewbot{\vrule height0pt depth\cornerthick width\cornerlong}
+\def\nsbot{\vbox
+ {\hrule height\cornerlong depth\cornerthick width\cornerthick}}
+
+% Parse an argument, then pass it to #1. The argument is the rest of
+% the input line (except we remove a trailing comment). #1 should be a
+% macro which expects an ordinary undelimited TeX argument.
+%
+\def\parsearg#1{%
+ \let\next = #1%
+ \begingroup
+ \obeylines
+ \futurelet\temp\parseargx
+}
+
+% If the next token is an obeyed space (from an @example environment or
+% the like), remove it and recurse. Otherwise, we're done.
+\def\parseargx{%
+ % \obeyedspace is defined far below, after the definition of \sepspaces.
+ \ifx\obeyedspace\temp
+ \expandafter\parseargdiscardspace
+ \else
+ \expandafter\parseargline
+ \fi
+}
+
+% Remove a single space (as the delimiter token to the macro call).
+{\obeyspaces %
+ \gdef\parseargdiscardspace {\futurelet\temp\parseargx}}
+
+{\obeylines %
+ \gdef\parseargline#1^^M{%
+ \endgroup % End of the group started in \parsearg.
+ %
+ % First remove any @c comment, then any @comment.
+ % Result of each macro is put in \toks0.
+ \argremovec #1\c\relax %
+ \expandafter\argremovecomment \the\toks0 \comment\relax %
+ %
+ % Call the caller's macro, saved as \next in \parsearg.
+ \expandafter\next\expandafter{\the\toks0}%
+ }%
+}
+
+% Since all \c{,omment} does is throw away the argument, we can let TeX
+% do that for us. The \relax here is matched by the \relax in the call
+% in \parseargline; it could be more or less anything, its purpose is
+% just to delimit the argument to the \c.
+\def\argremovec#1\c#2\relax{\toks0 = {#1}}
+\def\argremovecomment#1\comment#2\relax{\toks0 = {#1}}
+
+% \argremovec{,omment} might leave us with trailing spaces, though; e.g.,
+% @end itemize @c foo
+% will have two active spaces as part of the argument with the
+% `itemize'. Here we remove all active spaces from #1, and assign the
+% result to \toks0.
+%
+% This loses if there are any *other* active characters besides spaces
+% in the argument -- _ ^ +, for example -- since they get expanded.
+% Fortunately, Texinfo does not define any such commands. (If it ever
+% does, the catcode of the characters in questionwill have to be changed
+% here.) But this means we cannot call \removeactivespaces as part of
+% \argremovec{,omment}, since @c uses \parsearg, and thus the argument
+% that \parsearg gets might well have any character at all in it.
+%
+\def\removeactivespaces#1{%
+ \begingroup
+ \ignoreactivespaces
+ \edef\temp{#1}%
+ \global\toks0 = \expandafter{\temp}%
+ \endgroup
+}
+
+% Change the active space to expand to nothing.
+%
+\begingroup
+ \obeyspaces
+ \gdef\ignoreactivespaces{\obeyspaces\let =\empty}
+\endgroup
+
+
+\def\flushcr{\ifx\par\lisppar \def\next##1{}\else \let\next=\relax \fi \next}
+
+%% These are used to keep @begin/@end levels from running away
+%% Call \inENV within environments (after a \begingroup)
+\newif\ifENV \ENVfalse \def\inENV{\ifENV\relax\else\ENVtrue\fi}
+\def\ENVcheck{%
+\ifENV\errmessage{Still within an environment; press RETURN to continue}
+\endgroup\fi} % This is not perfect, but it should reduce lossage
+
+% @begin foo is the same as @foo, for now.
+\newhelp\EMsimple{Press RETURN to continue.}
+
+\outer\def\begin{\parsearg\beginxxx}
+
+\def\beginxxx #1{%
+\expandafter\ifx\csname #1\endcsname\relax
+{\errhelp=\EMsimple \errmessage{Undefined command @begin #1}}\else
+\csname #1\endcsname\fi}
+
+% @end foo executes the definition of \Efoo.
+%
+\def\end{\parsearg\endxxx}
+\def\endxxx #1{%
+ \removeactivespaces{#1}%
+ \edef\endthing{\the\toks0}%
+ %
+ \expandafter\ifx\csname E\endthing\endcsname\relax
+ \expandafter\ifx\csname \endthing\endcsname\relax
+ % There's no \foo, i.e., no ``environment'' foo.
+ \errhelp = \EMsimple
+ \errmessage{Undefined command `@end \endthing'}%
+ \else
+ \unmatchedenderror\endthing
+ \fi
+ \else
+ % Everything's ok; the right environment has been started.
+ \csname E\endthing\endcsname
+ \fi
+}
+
+% There is an environment #1, but it hasn't been started. Give an error.
+%
+\def\unmatchedenderror#1{%
+ \errhelp = \EMsimple
+ \errmessage{This `@end #1' doesn't have a matching `@#1'}%
+}
+
+% Define the control sequence \E#1 to give an unmatched @end error.
+%
+\def\defineunmatchedend#1{%
+ \expandafter\def\csname E#1\endcsname{\unmatchedenderror{#1}}%
+}
+
+
+% Single-spacing is done by various environments (specifically, in
+% \nonfillstart and \quotations).
+\newskip\singlespaceskip \singlespaceskip = 12.5pt
+\def\singlespace{%
+ % Why was this kern here? It messes up equalizing space above and below
+ % environments. --karl, 6may93
+ %{\advance \baselineskip by -\singlespaceskip
+ %\kern \baselineskip}%
+ \setleading\singlespaceskip
+}
+
+%% Simple single-character @ commands
+
+% @@ prints an @
+% Kludge this until the fonts are right (grr).
+\def\@{{\tt\char64}}
+
+% This is turned off because it was never documented
+% and you can use @w{...} around a quote to suppress ligatures.
+%% Define @` and @' to be the same as ` and '
+%% but suppressing ligatures.
+%\def\`{{`}}
+%\def\'{{'}}
+
+% Used to generate quoted braces.
+\def\mylbrace {{\tt\char123}}
+\def\myrbrace {{\tt\char125}}
+\let\{=\mylbrace
+\let\}=\myrbrace
+\begingroup
+ % Definitions to produce actual \{ & \} command in an index.
+ \catcode`\{ = 12 \catcode`\} = 12
+ \catcode`\[ = 1 \catcode`\] = 2
+ \catcode`\@ = 0 \catcode`\\ = 12
+ @gdef@lbracecmd[\{]%
+ @gdef@rbracecmd[\}]%
+@endgroup
+
+% Accents: @, @dotaccent @ringaccent @ubaraccent @udotaccent
+% Others are defined by plain TeX: @` @' @" @^ @~ @= @v @H.
+\let\, = \c
+\let\dotaccent = \.
+\def\ringaccent#1{{\accent23 #1}}
+\let\tieaccent = \t
+\let\ubaraccent = \b
+\let\udotaccent = \d
+
+% Other special characters: @questiondown @exclamdown
+% Plain TeX defines: @AA @AE @O @OE @L (and lowercase versions) @ss.
+\def\questiondown{?`}
+\def\exclamdown{!`}
+
+% Dotless i and dotless j, used for accents.
+\def\imacro{i}
+\def\jmacro{j}
+\def\dotless#1{%
+ \def\temp{#1}%
+ \ifx\temp\imacro \ptexi
+ \else\ifx\temp\jmacro \j
+ \else \errmessage{@dotless can be used only with i or j}%
+ \fi\fi
+}
+
+% Be sure we're in horizontal mode when doing a tie, since we make space
+% equivalent to this in @example-like environments. Otherwise, a space
+% at the beginning of a line will start with \penalty -- and
+% since \penalty is valid in vertical mode, we'd end up putting the
+% penalty on the vertical list instead of in the new paragraph.
+{\catcode`@ = 11
+ % Avoid using \@M directly, because that causes trouble
+ % if the definition is written into an index file.
+ \global\let\tiepenalty = \@M
+ \gdef\tie{\leavevmode\penalty\tiepenalty\ }
+}
+
+% @: forces normal size whitespace following.
+\def\:{\spacefactor=1000 }
+
+% @* forces a line break.
+\def\*{\hfil\break\hbox{}\ignorespaces}
+
+% @. is an end-of-sentence period.
+\def\.{.\spacefactor=3000 }
+
+% @! is an end-of-sentence bang.
+\def\!{!\spacefactor=3000 }
+
+% @? is an end-of-sentence query.
+\def\?{?\spacefactor=3000 }
+
+% @w prevents a word break. Without the \leavevmode, @w at the
+% beginning of a paragraph, when TeX is still in vertical mode, would
+% produce a whole line of output instead of starting the paragraph.
+\def\w#1{\leavevmode\hbox{#1}}
+
+% @group ... @end group forces ... to be all on one page, by enclosing
+% it in a TeX vbox. We use \vtop instead of \vbox to construct the box
+% to keep its height that of a normal line. According to the rules for
+% \topskip (p.114 of the TeXbook), the glue inserted is
+% max (\topskip - \ht (first item), 0). If that height is large,
+% therefore, no glue is inserted, and the space between the headline and
+% the text is small, which looks bad.
+%
+\def\group{\begingroup
+ \ifnum\catcode13=\active \else
+ \errhelp = \groupinvalidhelp
+ \errmessage{@group invalid in context where filling is enabled}%
+ \fi
+ %
+ % The \vtop we start below produces a box with normal height and large
+ % depth; thus, TeX puts \baselineskip glue before it, and (when the
+ % next line of text is done) \lineskip glue after it. (See p.82 of
+ % the TeXbook.) Thus, space below is not quite equal to space
+ % above. But it's pretty close.
+ \def\Egroup{%
+ \egroup % End the \vtop.
+ \endgroup % End the \group.
+ }%
+ %
+ \vtop\bgroup
+ % We have to put a strut on the last line in case the @group is in
+ % the midst of an example, rather than completely enclosing it.
+ % Otherwise, the interline space between the last line of the group
+ % and the first line afterwards is too small. But we can't put the
+ % strut in \Egroup, since there it would be on a line by itself.
+ % Hence this just inserts a strut at the beginning of each line.
+ \everypar = {\strut}%
+ %
+ % Since we have a strut on every line, we don't need any of TeX's
+ % normal interline spacing.
+ \offinterlineskip
+ %
+ % OK, but now we have to do something about blank
+ % lines in the input in @example-like environments, which normally
+ % just turn into \lisppar, which will insert no space now that we've
+ % turned off the interline space. Simplest is to make them be an
+ % empty paragraph.
+ \ifx\par\lisppar
+ \edef\par{\leavevmode \par}%
+ %
+ % Reset ^^M's definition to new definition of \par.
+ \obeylines
+ \fi
+ %
+ % Do @comment since we are called inside an environment such as
+ % @example, where each end-of-line in the input causes an
+ % end-of-line in the output. We don't want the end-of-line after
+ % the `@group' to put extra space in the output. Since @group
+ % should appear on a line by itself (according to the Texinfo
+ % manual), we don't worry about eating any user text.
+ \comment
+}
+%
+% TeX puts in an \escapechar (i.e., `@') at the beginning of the help
+% message, so this ends up printing `@group can only ...'.
+%
+\newhelp\groupinvalidhelp{%
+group can only be used in environments such as @example,^^J%
+where each line of input produces a line of output.}
+
+% @need space-in-mils
+% forces a page break if there is not space-in-mils remaining.
+
+\newdimen\mil \mil=0.001in
+
+\def\need{\parsearg\needx}
+
+% Old definition--didn't work.
+%\def\needx #1{\par %
+%% This method tries to make TeX break the page naturally
+%% if the depth of the box does not fit.
+%{\baselineskip=0pt%
+%\vtop to #1\mil{\vfil}\kern -#1\mil\nobreak
+%\prevdepth=-1000pt
+%}}
+
+\def\needx#1{%
+ % Ensure vertical mode, so we don't make a big box in the middle of a
+ % paragraph.
+ \par
+ %
+ % If the @need value is less than one line space, it's useless.
+ \dimen0 = #1\mil
+ \dimen2 = \ht\strutbox
+ \advance\dimen2 by \dp\strutbox
+ \ifdim\dimen0 > \dimen2
+ %
+ % Do a \strut just to make the height of this box be normal, so the
+ % normal leading is inserted relative to the preceding line.
+ % And a page break here is fine.
+ \vtop to #1\mil{\strut\vfil}%
+ %
+ % TeX does not even consider page breaks if a penalty added to the
+ % main vertical list is 10000 or more. But in order to see if the
+ % empty box we just added fits on the page, we must make it consider
+ % page breaks. On the other hand, we don't want to actually break the
+ % page after the empty box. So we use a penalty of 9999.
+ %
+ % There is an extremely small chance that TeX will actually break the
+ % page at this \penalty, if there are no other feasible breakpoints in
+ % sight. (If the user is using lots of big @group commands, which
+ % almost-but-not-quite fill up a page, TeX will have a hard time doing
+ % good page breaking, for example.) However, I could not construct an
+ % example where a page broke at this \penalty; if it happens in a real
+ % document, then we can reconsider our strategy.
+ \penalty9999
+ %
+ % Back up by the size of the box, whether we did a page break or not.
+ \kern -#1\mil
+ %
+ % Do not allow a page break right after this kern.
+ \nobreak
+ \fi
+}
+
+% @br forces paragraph break
+
+\let\br = \par
+
+% @dots{} output an ellipsis using the current font.
+% We do .5em per period so that it has the same spacing in a typewriter
+% font as three actual period characters.
+%
+\def\dots{%
+ \leavevmode
+ \hbox to 1.5em{%
+ \hskip 0pt plus 0.25fil minus 0.25fil
+ .\hss.\hss.%
+ \hskip 0pt plus 0.5fil minus 0.5fil
+ }%
+}
+
+% @enddots{} is an end-of-sentence ellipsis.
+%
+\def\enddots{%
+ \leavevmode
+ \hbox to 2em{%
+ \hskip 0pt plus 0.25fil minus 0.25fil
+ .\hss.\hss.\hss.%
+ \hskip 0pt plus 0.5fil minus 0.5fil
+ }%
+ \spacefactor=3000
+}
+
+
+% @page forces the start of a new page
+%
+\def\page{\par\vfill\supereject}
+
+% @exdent text....
+% outputs text on separate line in roman font, starting at standard page margin
+
+% This records the amount of indent in the innermost environment.
+% That's how much \exdent should take out.
+\newskip\exdentamount
+
+% This defn is used inside fill environments such as @defun.
+\def\exdent{\parsearg\exdentyyy}
+\def\exdentyyy #1{{\hfil\break\hbox{\kern -\exdentamount{\rm#1}}\hfil\break}}
+
+% This defn is used inside nofill environments such as @example.
+\def\nofillexdent{\parsearg\nofillexdentyyy}
+\def\nofillexdentyyy #1{{\advance \leftskip by -\exdentamount
+\leftline{\hskip\leftskip{\rm#1}}}}
+
+% @inmargin{WHICH}{TEXT} puts TEXT in the WHICH margin next to the current
+% paragraph. For more general purposes, use the \margin insertion
+% class. WHICH is `l' or `r'.
+%
+\newskip\inmarginspacing \inmarginspacing=1cm
+\def\strutdepth{\dp\strutbox}
+%
+\def\doinmargin#1#2{\strut\vadjust{%
+ \nobreak
+ \kern-\strutdepth
+ \vtop to \strutdepth{%
+ \baselineskip=\strutdepth
+ \vss
+ % if you have multiple lines of stuff to put here, you'll need to
+ % make the vbox yourself of the appropriate size.
+ \ifx#1l%
+ \llap{\ignorespaces #2\hskip\inmarginspacing}%
+ \else
+ \rlap{\hskip\hsize \hskip\inmarginspacing \ignorespaces #2}%
+ \fi
+ \null
+ }%
+}}
+\def\inleftmargin{\doinmargin l}
+\def\inrightmargin{\doinmargin r}
+%
+% @inmargin{TEXT [, RIGHT-TEXT]}
+% (if RIGHT-TEXT is given, use TEXT for left page, RIGHT-TEXT for right;
+% else use TEXT for both).
+%
+\def\inmargin#1{\parseinmargin #1,,\finish}
+\def\parseinmargin#1,#2,#3\finish{% not perfect, but better than nothing.
+ \setbox0 = \hbox{\ignorespaces #2}%
+ \ifdim\wd0 > 0pt
+ \def\lefttext{#1}% have both texts
+ \def\righttext{#2}%
+ \else
+ \def\lefttext{#1}% have only one text
+ \def\righttext{#1}%
+ \fi
+ %
+ \ifodd\pageno
+ \def\temp{\inrightmargin\righttext}% odd page -> outside is right margin
+ \else
+ \def\temp{\inleftmargin\lefttext}%
+ \fi
+ \temp
+}
+
+% @include file insert text of that file as input.
+% Allow normal characters that we make active in the argument (a file name).
+\def\include{\begingroup
+ \catcode`\\=12
+ \catcode`~=12
+ \catcode`^=12
+ \catcode`_=12
+ \catcode`|=12
+ \catcode`<=12
+ \catcode`>=12
+ \catcode`+=12
+ \parsearg\includezzz}
+% Restore active chars for included file.
+\def\includezzz#1{\endgroup\begingroup
+ % Read the included file in a group so nested @include's work.
+ \def\thisfile{#1}%
+ \input\thisfile
+\endgroup}
+
+\def\thisfile{}
+
+% @center line outputs that line, centered
+
+\def\center{\parsearg\centerzzz}
+\def\centerzzz #1{{\advance\hsize by -\leftskip
+\advance\hsize by -\rightskip
+\centerline{#1}}}
+
+% @sp n outputs n lines of vertical space
+
+\def\sp{\parsearg\spxxx}
+\def\spxxx #1{\vskip #1\baselineskip}
+
+% @comment ...line which is ignored...
+% @c is the same as @comment
+% @ignore ... @end ignore is another way to write a comment
+
+\def\comment{\begingroup \catcode`\^^M=\other%
+\catcode`\@=\other \catcode`\{=\other \catcode`\}=\other%
+\commentxxx}
+{\catcode`\^^M=\other \gdef\commentxxx#1^^M{\endgroup}}
+
+\let\c=\comment
+
+% @paragraphindent NCHARS
+% We'll use ems for NCHARS, close enough.
+% We cannot implement @paragraphindent asis, though.
+%
+\def\asisword{asis} % no translation, these are keywords
+\def\noneword{none}
+%
+\def\paragraphindent{\parsearg\doparagraphindent}
+\def\doparagraphindent#1{%
+ \def\temp{#1}%
+ \ifx\temp\asisword
+ \else
+ \ifx\temp\noneword
+ \defaultparindent = 0pt
+ \else
+ \defaultparindent = #1em
+ \fi
+ \fi
+ \parindent = \defaultparindent
+}
+
+% @exampleindent NCHARS
+% We'll use ems for NCHARS like @paragraphindent.
+% It seems @exampleindent asis isn't necessary, but
+% I preserve it to make it similar to @paragraphindent.
+\def\exampleindent{\parsearg\doexampleindent}
+\def\doexampleindent#1{%
+ \def\temp{#1}%
+ \ifx\temp\asisword
+ \else
+ \ifx\temp\noneword
+ \lispnarrowing = 0pt
+ \else
+ \lispnarrowing = #1em
+ \fi
+ \fi
+}
+
+% @asis just yields its argument. Used with @table, for example.
+%
+\def\asis#1{#1}
+
+% @math means output in math mode.
+% We don't use $'s directly in the definition of \math because control
+% sequences like \math are expanded when the toc file is written. Then,
+% we read the toc file back, the $'s will be normal characters (as they
+% should be, according to the definition of Texinfo). So we must use a
+% control sequence to switch into and out of math mode.
+%
+% This isn't quite enough for @math to work properly in indices, but it
+% seems unlikely it will ever be needed there.
+%
+\let\implicitmath = $
+\def\math#1{\implicitmath #1\implicitmath}
+
+% @bullet and @minus need the same treatment as @math, just above.
+\def\bullet{\implicitmath\ptexbullet\implicitmath}
+\def\minus{\implicitmath-\implicitmath}
+
+% @refill is a no-op.
+\let\refill=\relax
+
+% If working on a large document in chapters, it is convenient to
+% be able to disable indexing, cross-referencing, and contents, for test runs.
+% This is done with @novalidate (before @setfilename).
+%
+\newif\iflinks \linkstrue % by default we want the aux files.
+\let\novalidate = \linksfalse
+
+% @setfilename is done at the beginning of every texinfo file.
+% So open here the files we need to have open while reading the input.
+% This makes it possible to make a .fmt file for texinfo.
+\def\setfilename{%
+ \iflinks
+ \readauxfile
+ \fi % \openindices needs to do some work in any case.
+ \openindices
+ \fixbackslash % Turn off hack to swallow `\input texinfo'.
+ \global\let\setfilename=\comment % Ignore extra @setfilename cmds.
+ %
+ % If texinfo.cnf is present on the system, read it.
+ % Useful for site-wide @afourpaper, etc.
+ % Just to be on the safe side, close the input stream before the \input.
+ \openin 1 texinfo.cnf
+ \ifeof1 \let\temp=\relax \else \def\temp{\input texinfo.cnf }\fi
+ \closein1
+ \temp
+ %
+ \comment % Ignore the actual filename.
+}
+
+% Called from \setfilename.
+%
+\def\openindices{%
+ \newindex{cp}%
+ \newcodeindex{fn}%
+ \newcodeindex{vr}%
+ \newcodeindex{tp}%
+ \newcodeindex{ky}%
+ \newcodeindex{pg}%
+}
+
+% @bye.
+\outer\def\bye{\pagealignmacro\tracingstats=1\ptexend}
+
+
+\message{pdf,}
+% adobe `portable' document format
+\newcount\tempnum
+\newcount\lnkcount
+\newtoks\filename
+\newcount\filenamelength
+\newcount\pgn
+\newtoks\toksA
+\newtoks\toksB
+\newtoks\toksC
+\newtoks\toksD
+\newbox\boxA
+\newcount\countA
+\newif\ifpdf
+\newif\ifpdfmakepagedest
+
+\ifx\pdfoutput\undefined
+ \pdffalse
+ \let\pdfmkdest = \gobble
+ \let\pdfurl = \gobble
+ \let\endlink = \relax
+ \let\linkcolor = \relax
+ \let\pdfmakeoutlines = \relax
+\else
+ \pdftrue
+ \pdfoutput = 1
+ \input pdfcolor
+ \def\dopdfimage#1#2#3{%
+ \def\imagewidth{#2}%
+ \def\imageheight{#3}%
+ \ifnum\pdftexversion < 14
+ \pdfimage
+ \else
+ \pdfximage
+ \fi
+ \ifx\empty\imagewidth\else width \imagewidth \fi
+ \ifx\empty\imageheight\else height \imageheight \fi
+ \ifnum\pdftexversion<13
+ #1.pdf%
+ \else
+ {#1.pdf}%
+ \fi
+ \ifnum\pdftexversion < 14 \else
+ \pdfrefximage \pdflastximage
+ \fi}
+ \def\pdfmkdest#1{{\normalturnoffactive \pdfdest name{#1} xyz}}
+ \def\pdfmkpgn#1{#1@}
+ \let\linkcolor = \Blue % was Cyan, but that seems light?
+ \def\endlink{\Black\pdfendlink}
+ % Adding outlines to PDF; macros for calculating structure of outlines
+ % come from Petr Olsak
+ \def\expnumber#1{\expandafter\ifx\csname#1\endcsname\relax 0%
+ \else \csname#1\endcsname \fi}
+ \def\advancenumber#1{\tempnum=\expnumber{#1}\relax
+ \advance\tempnum by1
+ \expandafter\xdef\csname#1\endcsname{\the\tempnum}}
+ \def\pdfmakeoutlines{{%
+ \openin 1 \jobname.toc
+ \ifeof 1\else\bgroup
+ \closein 1
+ \indexnofonts
+ \def\tt{}
+ \let\_ = \normalunderscore
+ % Thanh's hack / proper braces in bookmarks
+ \edef\mylbrace{\iftrue \string{\else}\fi}\let\{=\mylbrace
+ \edef\myrbrace{\iffalse{\else\string}\fi}\let\}=\myrbrace
+ %
+ \def\chapentry ##1##2##3{}
+ \def\unnumbchapentry ##1##2{}
+ \def\secentry ##1##2##3##4{\advancenumber{chap##2}}
+ \def\unnumbsecentry ##1##2{}
+ \def\subsecentry ##1##2##3##4##5{\advancenumber{sec##2.##3}}
+ \def\unnumbsubsecentry ##1##2{}
+ \def\subsubsecentry ##1##2##3##4##5##6{\advancenumber{subsec##2.##3.##4}}
+ \def\unnumbsubsubsecentry ##1##2{}
+ \input \jobname.toc
+ \def\chapentry ##1##2##3{%
+ \pdfoutline goto name{\pdfmkpgn{##3}}count-\expnumber{chap##2}{##1}}
+ \def\unnumbchapentry ##1##2{%
+ \pdfoutline goto name{\pdfmkpgn{##2}}{##1}}
+ \def\secentry ##1##2##3##4{%
+ \pdfoutline goto name{\pdfmkpgn{##4}}count-\expnumber{sec##2.##3}{##1}}
+ \def\unnumbsecentry ##1##2{%
+ \pdfoutline goto name{\pdfmkpgn{##2}}{##1}}
+ \def\subsecentry ##1##2##3##4##5{%
+ \pdfoutline goto name{\pdfmkpgn{##5}}count-\expnumber{subsec##2.##3.##4}{##1}}
+ \def\unnumbsubsecentry ##1##2{%
+ \pdfoutline goto name{\pdfmkpgn{##2}}{##1}}
+ \def\subsubsecentry ##1##2##3##4##5##6{%
+ \pdfoutline goto name{\pdfmkpgn{##6}}{##1}}
+ \def\unnumbsubsubsecentry ##1##2{%
+ \pdfoutline goto name{\pdfmkpgn{##2}}{##1}}
+ \input \jobname.toc
+ \egroup\fi
+ }}
+ \def\makelinks #1,{%
+ \def\params{#1}\def\E{END}%
+ \ifx\params\E
+ \let\nextmakelinks=\relax
+ \else
+ \let\nextmakelinks=\makelinks
+ \ifnum\lnkcount>0,\fi
+ \picknum{#1}%
+ \startlink attr{/Border [0 0 0]}
+ goto name{\pdfmkpgn{\the\pgn}}%
+ \linkcolor #1%
+ \advance\lnkcount by 1%
+ \endlink
+ \fi
+ \nextmakelinks
+ }
+ \def\picknum#1{\expandafter\pn#1}
+ \def\pn#1{%
+ \def\p{#1}%
+ \ifx\p\lbrace
+ \let\nextpn=\ppn
+ \else
+ \let\nextpn=\ppnn
+ \def\first{#1}
+ \fi
+ \nextpn
+ }
+ \def\ppn#1{\pgn=#1\gobble}
+ \def\ppnn{\pgn=\first}
+ \def\pdfmklnk#1{\lnkcount=0\makelinks #1,END,}
+ \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
+ \def\skipspaces#1{\def\PP{#1}\def\D{|}%
+ \ifx\PP\D\let\nextsp\relax
+ \else\let\nextsp\skipspaces
+ \ifx\p\space\else\addtokens{\filename}{\PP}%
+ \advance\filenamelength by 1
+ \fi
+ \fi
+ \nextsp}
+ \def\getfilename#1{\filenamelength=0\expandafter\skipspaces#1|\relax}
+ \ifnum\pdftexversion < 14
+ \let \startlink \pdfannotlink
+ \else
+ \let \startlink \pdfstartlink
+ \fi
+ \def\pdfurl#1{%
+ \begingroup
+ \normalturnoffactive\def\@{@}%
+ \let\value=\expandablevalue
+ \leavevmode\Red
+ \startlink attr{/Border [0 0 0]}%
+ user{/Subtype /Link /A << /S /URI /URI (#1) >>}%
+ % #1
+ \endgroup}
+ \def\pdfgettoks#1.{\setbox\boxA=\hbox{\toksA={#1.}\toksB={}\maketoks}}
+ \def\addtokens#1#2{\edef\addtoks{\noexpand#1={\the#1#2}}\addtoks}
+ \def\adn#1{\addtokens{\toksC}{#1}\global\countA=1\let\next=\maketoks}
+ \def\poptoks#1#2|ENDTOKS|{\let\first=#1\toksD={#1}\toksA={#2}}
+ \def\maketoks{%
+ \expandafter\poptoks\the\toksA|ENDTOKS|
+ \ifx\first0\adn0
+ \else\ifx\first1\adn1 \else\ifx\first2\adn2 \else\ifx\first3\adn3
+ \else\ifx\first4\adn4 \else\ifx\first5\adn5 \else\ifx\first6\adn6
+ \else\ifx\first7\adn7 \else\ifx\first8\adn8 \else\ifx\first9\adn9
+ \else
+ \ifnum0=\countA\else\makelink\fi
+ \ifx\first.\let\next=\done\else
+ \let\next=\maketoks
+ \addtokens{\toksB}{\the\toksD}
+ \ifx\first,\addtokens{\toksB}{\space}\fi
+ \fi
+ \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
+ \next}
+ \def\makelink{\addtokens{\toksB}%
+ {\noexpand\pdflink{\the\toksC}}\toksC={}\global\countA=0}
+ \def\pdflink#1{%
+ \startlink attr{/Border [0 0 0]} goto name{\pdfmkpgn{#1}}
+ \linkcolor #1\endlink}
+ \def\done{\edef\st{\global\noexpand\toksA={\the\toksB}}\st}
+\fi % \ifx\pdfoutput
+
+
+\message{fonts,}
+% Font-change commands.
+
+% Texinfo sort of supports the sans serif font style, which plain TeX does not.
+% So we set up a \sf analogous to plain's \rm, etc.
+\newfam\sffam
+\def\sf{\fam=\sffam \tensf}
+\let\li = \sf % Sometimes we call it \li, not \sf.
+
+% We don't need math for this one.
+\def\ttsl{\tenttsl}
+
+% Default leading.
+\newdimen\textleading \textleading = 13.2pt
+
+% Set the baselineskip to #1, and the lineskip and strut size
+% correspondingly. There is no deep meaning behind these magic numbers
+% used as factors; they just match (closely enough) what Knuth defined.
+%
+\def\lineskipfactor{.08333}
+\def\strutheightpercent{.70833}
+\def\strutdepthpercent {.29167}
+%
+\def\setleading#1{%
+ \normalbaselineskip = #1\relax
+ \normallineskip = \lineskipfactor\normalbaselineskip
+ \normalbaselines
+ \setbox\strutbox =\hbox{%
+ \vrule width0pt height\strutheightpercent\baselineskip
+ depth \strutdepthpercent \baselineskip
+ }%
+}
+
+% Use Computer Modern fonts at \magstephalf (11pt).
+\newcount\mainmagstep \mainmagstep=\magstephalf
+
+% Set the font macro #1 to the font named #2, adding on the
+% specified font prefix (normally `cm').
+% #3 is the font's design size, #4 is a scale factor
+\def\setfont#1#2#3#4{\font#1=\fontprefix#2#3 scaled #4}
+
+% Use cm as the default font prefix.
+% To specify the font prefix, you must define \fontprefix
+% before you read in texinfo.tex.
+\ifx\fontprefix\undefined
+\def\fontprefix{cm}
+\fi
+% Support font families that don't use the same naming scheme as CM.
+\def\rmshape{r}
+\def\rmbshape{bx} %where the normal face is bold
+\def\bfshape{b}
+\def\bxshape{bx}
+\def\ttshape{tt}
+\def\ttbshape{tt}
+\def\ttslshape{sltt}
+\def\itshape{ti}
+\def\itbshape{bxti}
+\def\slshape{sl}
+\def\slbshape{bxsl}
+\def\sfshape{ss}
+\def\sfbshape{ss}
+\def\scshape{csc}
+\def\scbshape{csc}
+
+\ifx\bigger\relax
+\let\mainmagstep=\magstep1
+\setfont\textrm\rmshape{12}{1000}
+\setfont\texttt\ttshape{12}{1000}
+\else
+\setfont\textrm\rmshape{10}{\mainmagstep}
+\setfont\texttt\ttshape{10}{\mainmagstep}
+\fi
+% Instead of cmb10, you many want to use cmbx10.
+% cmbx10 is a prettier font on its own, but cmb10
+% looks better when embedded in a line with cmr10.
+\setfont\textbf\bfshape{10}{\mainmagstep}
+\setfont\textit\itshape{10}{\mainmagstep}
+\setfont\textsl\slshape{10}{\mainmagstep}
+\setfont\textsf\sfshape{10}{\mainmagstep}
+\setfont\textsc\scshape{10}{\mainmagstep}
+\setfont\textttsl\ttslshape{10}{\mainmagstep}
+\font\texti=cmmi10 scaled \mainmagstep
+\font\textsy=cmsy10 scaled \mainmagstep
+
+% A few fonts for @defun, etc.
+\setfont\defbf\bxshape{10}{\magstep1} %was 1314
+\setfont\deftt\ttshape{10}{\magstep1}
+\def\df{\let\tentt=\deftt \let\tenbf = \defbf \bf}
+
+% Fonts for indices, footnotes, small examples (9pt).
+\setfont\smallrm\rmshape{9}{1000}
+\setfont\smalltt\ttshape{9}{1000}
+\setfont\smallbf\bfshape{10}{900}
+\setfont\smallit\itshape{9}{1000}
+\setfont\smallsl\slshape{9}{1000}
+\setfont\smallsf\sfshape{9}{1000}
+\setfont\smallsc\scshape{10}{900}
+\setfont\smallttsl\ttslshape{10}{900}
+\font\smalli=cmmi9
+\font\smallsy=cmsy9
+
+% Fonts for small examples (8pt).
+\setfont\smallerrm\rmshape{8}{1000}
+\setfont\smallertt\ttshape{8}{1000}
+\setfont\smallerbf\bfshape{10}{800}
+\setfont\smallerit\itshape{8}{1000}
+\setfont\smallersl\slshape{8}{1000}
+\setfont\smallersf\sfshape{8}{1000}
+\setfont\smallersc\scshape{10}{800}
+\setfont\smallerttsl\ttslshape{10}{800}
+\font\smalleri=cmmi8
+\font\smallersy=cmsy8
+
+% Fonts for title page:
+\setfont\titlerm\rmbshape{12}{\magstep3}
+\setfont\titleit\itbshape{10}{\magstep4}
+\setfont\titlesl\slbshape{10}{\magstep4}
+\setfont\titlett\ttbshape{12}{\magstep3}
+\setfont\titlettsl\ttslshape{10}{\magstep4}
+\setfont\titlesf\sfbshape{17}{\magstep1}
+\let\titlebf=\titlerm
+\setfont\titlesc\scbshape{10}{\magstep4}
+\font\titlei=cmmi12 scaled \magstep3
+\font\titlesy=cmsy10 scaled \magstep4
+\def\authorrm{\secrm}
+
+% Chapter (and unnumbered) fonts (17.28pt).
+\setfont\chaprm\rmbshape{12}{\magstep2}
+\setfont\chapit\itbshape{10}{\magstep3}
+\setfont\chapsl\slbshape{10}{\magstep3}
+\setfont\chaptt\ttbshape{12}{\magstep2}
+\setfont\chapttsl\ttslshape{10}{\magstep3}
+\setfont\chapsf\sfbshape{17}{1000}
+\let\chapbf=\chaprm
+\setfont\chapsc\scbshape{10}{\magstep3}
+\font\chapi=cmmi12 scaled \magstep2
+\font\chapsy=cmsy10 scaled \magstep3
+
+% Section fonts (14.4pt).
+\setfont\secrm\rmbshape{12}{\magstep1}
+\setfont\secit\itbshape{10}{\magstep2}
+\setfont\secsl\slbshape{10}{\magstep2}
+\setfont\sectt\ttbshape{12}{\magstep1}
+\setfont\secttsl\ttslshape{10}{\magstep2}
+\setfont\secsf\sfbshape{12}{\magstep1}
+\let\secbf\secrm
+\setfont\secsc\scbshape{10}{\magstep2}
+\font\seci=cmmi12 scaled \magstep1
+\font\secsy=cmsy10 scaled \magstep2
+
+% \setfont\ssecrm\bxshape{10}{\magstep1} % This size an font looked bad.
+% \setfont\ssecit\itshape{10}{\magstep1} % The letters were too crowded.
+% \setfont\ssecsl\slshape{10}{\magstep1}
+% \setfont\ssectt\ttshape{10}{\magstep1}
+% \setfont\ssecsf\sfshape{10}{\magstep1}
+
+%\setfont\ssecrm\bfshape{10}{1315} % Note the use of cmb rather than cmbx.
+%\setfont\ssecit\itshape{10}{1315} % Also, the size is a little larger than
+%\setfont\ssecsl\slshape{10}{1315} % being scaled magstep1.
+%\setfont\ssectt\ttshape{10}{1315}
+%\setfont\ssecsf\sfshape{10}{1315}
+
+%\let\ssecbf=\ssecrm
+
+% Subsection fonts (13.15pt).
+\setfont\ssecrm\rmbshape{12}{\magstephalf}
+\setfont\ssecit\itbshape{10}{1315}
+\setfont\ssecsl\slbshape{10}{1315}
+\setfont\ssectt\ttbshape{12}{\magstephalf}
+\setfont\ssecttsl\ttslshape{10}{1315}
+\setfont\ssecsf\sfbshape{12}{\magstephalf}
+\let\ssecbf\ssecrm
+\setfont\ssecsc\scbshape{10}{\magstep1}
+\font\sseci=cmmi12 scaled \magstephalf
+\font\ssecsy=cmsy10 scaled 1315
+% The smallcaps and symbol fonts should actually be scaled \magstep1.5,
+% but that is not a standard magnification.
+
+% In order for the font changes to affect most math symbols and letters,
+% we have to define the \textfont of the standard families. Since
+% texinfo doesn't allow for producing subscripts and superscripts, we
+% don't bother to reset \scriptfont and \scriptscriptfont (which would
+% also require loading a lot more fonts).
+%
+\def\resetmathfonts{%
+ \textfont0 = \tenrm \textfont1 = \teni \textfont2 = \tensy
+ \textfont\itfam = \tenit \textfont\slfam = \tensl \textfont\bffam = \tenbf
+ \textfont\ttfam = \tentt \textfont\sffam = \tensf
+}
+
+
+% The font-changing commands redefine the meanings of \tenSTYLE, instead
+% of just \STYLE. We do this so that font changes will continue to work
+% in math mode, where it is the current \fam that is relevant in most
+% cases, not the current font. Plain TeX does \def\bf{\fam=\bffam
+% \tenbf}, for example. By redefining \tenbf, we obviate the need to
+% redefine \bf itself.
+\def\textfonts{%
+ \let\tenrm=\textrm \let\tenit=\textit \let\tensl=\textsl
+ \let\tenbf=\textbf \let\tentt=\texttt \let\smallcaps=\textsc
+ \let\tensf=\textsf \let\teni=\texti \let\tensy=\textsy \let\tenttsl=\textttsl
+ \resetmathfonts \setleading{\textleading}}
+\def\titlefonts{%
+ \let\tenrm=\titlerm \let\tenit=\titleit \let\tensl=\titlesl
+ \let\tenbf=\titlebf \let\tentt=\titlett \let\smallcaps=\titlesc
+ \let\tensf=\titlesf \let\teni=\titlei \let\tensy=\titlesy
+ \let\tenttsl=\titlettsl
+ \resetmathfonts \setleading{25pt}}
+\def\titlefont#1{{\titlefonts\rm #1}}
+\def\chapfonts{%
+ \let\tenrm=\chaprm \let\tenit=\chapit \let\tensl=\chapsl
+ \let\tenbf=\chapbf \let\tentt=\chaptt \let\smallcaps=\chapsc
+ \let\tensf=\chapsf \let\teni=\chapi \let\tensy=\chapsy \let\tenttsl=\chapttsl
+ \resetmathfonts \setleading{19pt}}
+\def\secfonts{%
+ \let\tenrm=\secrm \let\tenit=\secit \let\tensl=\secsl
+ \let\tenbf=\secbf \let\tentt=\sectt \let\smallcaps=\secsc
+ \let\tensf=\secsf \let\teni=\seci \let\tensy=\secsy \let\tenttsl=\secttsl
+ \resetmathfonts \setleading{16pt}}
+\def\subsecfonts{%
+ \let\tenrm=\ssecrm \let\tenit=\ssecit \let\tensl=\ssecsl
+ \let\tenbf=\ssecbf \let\tentt=\ssectt \let\smallcaps=\ssecsc
+ \let\tensf=\ssecsf \let\teni=\sseci \let\tensy=\ssecsy \let\tenttsl=\ssecttsl
+ \resetmathfonts \setleading{15pt}}
+\let\subsubsecfonts = \subsecfonts % Maybe make sssec fonts scaled magstephalf?
+\def\smallfonts{%
+ \let\tenrm=\smallrm \let\tenit=\smallit \let\tensl=\smallsl
+ \let\tenbf=\smallbf \let\tentt=\smalltt \let\smallcaps=\smallsc
+ \let\tensf=\smallsf \let\teni=\smalli \let\tensy=\smallsy
+ \let\tenttsl=\smallttsl
+ \resetmathfonts \setleading{10.5pt}}
+\def\smallerfonts{%
+ \let\tenrm=\smallerrm \let\tenit=\smallerit \let\tensl=\smallersl
+ \let\tenbf=\smallerbf \let\tentt=\smallertt \let\smallcaps=\smallersc
+ \let\tensf=\smallersf \let\teni=\smalleri \let\tensy=\smallersy
+ \let\tenttsl=\smallerttsl
+ \resetmathfonts \setleading{9.5pt}}
+\let\smallexamplefonts = \smallerfonts
+
+% Set up the default fonts, so we can use them for creating boxes.
+%
+\textfonts
+
+% Define these so they can be easily changed for other fonts.
+\def\angleleft{$\langle$}
+\def\angleright{$\rangle$}
+
+% Count depth in font-changes, for error checks
+\newcount\fontdepth \fontdepth=0
+
+% Fonts for short table of contents.
+\setfont\shortcontrm\rmshape{12}{1000}
+\setfont\shortcontbf\bxshape{12}{1000}
+\setfont\shortcontsl\slshape{12}{1000}
+
+%% Add scribe-like font environments, plus @l for inline lisp (usually sans
+%% serif) and @ii for TeX italic
+
+% \smartitalic{ARG} outputs arg in italics, followed by an italic correction
+% unless the following character is such as not to need one.
+\def\smartitalicx{\ifx\next,\else\ifx\next-\else\ifx\next.\else\/\fi\fi\fi}
+\def\smartslanted#1{{\sl #1}\futurelet\next\smartitalicx}
+\def\smartitalic#1{{\it #1}\futurelet\next\smartitalicx}
+
+\let\i=\smartitalic
+\let\var=\smartslanted
+\let\dfn=\smartslanted
+\let\emph=\smartitalic
+\let\cite=\smartslanted
+
+\def\b#1{{\bf #1}}
+\let\strong=\b
+
+% We can't just use \exhyphenpenalty, because that only has effect at
+% the end of a paragraph. Restore normal hyphenation at the end of the
+% group within which \nohyphenation is presumably called.
+%
+\def\nohyphenation{\hyphenchar\font = -1 \aftergroup\restorehyphenation}
+\def\restorehyphenation{\hyphenchar\font = `- }
+
+\def\t#1{%
+ {\tt \rawbackslash \frenchspacing #1}%
+ \null
+}
+\let\ttfont=\t
+\def\samp#1{`\tclose{#1}'\null}
+\setfont\keyrm\rmshape{8}{1000}
+\font\keysy=cmsy9
+\def\key#1{{\keyrm\textfont2=\keysy \leavevmode\hbox{%
+ \raise0.4pt\hbox{\angleleft}\kern-.08em\vtop{%
+ \vbox{\hrule\kern-0.4pt
+ \hbox{\raise0.4pt\hbox{\vphantom{\angleleft}}#1}}%
+ \kern-0.4pt\hrule}%
+ \kern-.06em\raise0.4pt\hbox{\angleright}}}}
+% The old definition, with no lozenge:
+%\def\key #1{{\ttsl \nohyphenation \uppercase{#1}}\null}
+\def\ctrl #1{{\tt \rawbackslash \hat}#1}
+
+% @file, @option are the same as @samp.
+\let\file=\samp
+\let\option=\samp
+
+% @code is a modification of @t,
+% which makes spaces the same size as normal in the surrounding text.
+\def\tclose#1{%
+ {%
+ % Change normal interword space to be same as for the current font.
+ \spaceskip = \fontdimen2\font
+ %
+ % Switch to typewriter.
+ \tt
+ %
+ % But `\ ' produces the large typewriter interword space.
+ \def\ {{\spaceskip = 0pt{} }}%
+ %
+ % Turn off hyphenation.
+ \nohyphenation
+ %
+ \rawbackslash
+ \frenchspacing
+ #1%
+ }%
+ \null
+}
+
+% We *must* turn on hyphenation at `-' and `_' in \code.
+% Otherwise, it is too hard to avoid overfull hboxes
+% in the Emacs manual, the Library manual, etc.
+
+% Unfortunately, TeX uses one parameter (\hyphenchar) to control
+% both hyphenation at - and hyphenation within words.
+% We must therefore turn them both off (\tclose does that)
+% and arrange explicitly to hyphenate at a dash.
+% -- rms.
+{
+ \catcode`\-=\active
+ \catcode`\_=\active
+ %
+ \global\def\code{\begingroup
+ \catcode`\-=\active \let-\codedash
+ \catcode`\_=\active \let_\codeunder
+ \codex
+ }
+ %
+ % If we end up with any active - characters when handling the index,
+ % just treat them as a normal -.
+ \global\def\indexbreaks{\catcode`\-=\active \let-\realdash}
+}
+
+\def\realdash{-}
+\def\codedash{-\discretionary{}{}{}}
+\def\codeunder{\ifusingtt{\normalunderscore\discretionary{}{}{}}{\_}}
+\def\codex #1{\tclose{#1}\endgroup}
+
+%\let\exp=\tclose %Was temporary
+
+% @kbd is like @code, except that if the argument is just one @key command,
+% then @kbd has no effect.
+
+% @kbdinputstyle -- arg is `distinct' (@kbd uses slanted tty font always),
+% `example' (@kbd uses ttsl only inside of @example and friends),
+% or `code' (@kbd uses normal tty font always).
+\def\kbdinputstyle{\parsearg\kbdinputstylexxx}
+\def\kbdinputstylexxx#1{%
+ \def\arg{#1}%
+ \ifx\arg\worddistinct
+ \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}%
+ \else\ifx\arg\wordexample
+ \gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\tt}%
+ \else\ifx\arg\wordcode
+ \gdef\kbdexamplefont{\tt}\gdef\kbdfont{\tt}%
+ \fi\fi\fi
+}
+\def\worddistinct{distinct}
+\def\wordexample{example}
+\def\wordcode{code}
+
+% Default is kbdinputdistinct. (Too much of a hassle to call the macro,
+% the catcodes are wrong for parsearg to work.)
+\gdef\kbdexamplefont{\ttsl}\gdef\kbdfont{\ttsl}
+
+\def\xkey{\key}
+\def\kbdfoo#1#2#3\par{\def\one{#1}\def\three{#3}\def\threex{??}%
+\ifx\one\xkey\ifx\threex\three \key{#2}%
+\else{\tclose{\kbdfont\look}}\fi
+\else{\tclose{\kbdfont\look}}\fi}
+
+% For @url, @env, @command quotes seem unnecessary, so use \code.
+\let\url=\code
+\let\env=\code
+\let\command=\code
+
+% @uref (abbreviation for `urlref') takes an optional (comma-separated)
+% second argument specifying the text to display and an optional third
+% arg as text to display instead of (rather than in addition to) the url
+% itself. First (mandatory) arg is the url. Perhaps eventually put in
+% a hypertex \special here.
+%
+\def\uref#1{\douref #1,,,\finish}
+\def\douref#1,#2,#3,#4\finish{\begingroup
+ \unsepspaces
+ \pdfurl{#1}%
+ \setbox0 = \hbox{\ignorespaces #3}%
+ \ifdim\wd0 > 0pt
+ \unhbox0 % third arg given, show only that
+ \else
+ \setbox0 = \hbox{\ignorespaces #2}%
+ \ifdim\wd0 > 0pt
+ \ifpdf
+ \unhbox0 % PDF: 2nd arg given, show only it
+ \else
+ \unhbox0\ (\code{#1})% DVI: 2nd arg given, show both it and url
+ \fi
+ \else
+ \code{#1}% only url given, so show it
+ \fi
+ \fi
+ \endlink
+\endgroup}
+
+% rms does not like angle brackets --karl, 17may97.
+% So now @email is just like @uref, unless we are pdf.
+%
+%\def\email#1{\angleleft{\tt #1}\angleright}
+\ifpdf
+ \def\email#1{\doemail#1,,\finish}
+ \def\doemail#1,#2,#3\finish{\begingroup
+ \unsepspaces
+ \pdfurl{mailto:#1}%
+ \setbox0 = \hbox{\ignorespaces #2}%
+ \ifdim\wd0>0pt\unhbox0\else\code{#1}\fi
+ \endlink
+ \endgroup}
+\else
+ \let\email=\uref
+\fi
+
+% Check if we are currently using a typewriter font. Since all the
+% Computer Modern typewriter fonts have zero interword stretch (and
+% shrink), and it is reasonable to expect all typewriter fonts to have
+% this property, we can check that font parameter.
+%
+\def\ifmonospace{\ifdim\fontdimen3\font=0pt }
+
+% Typeset a dimension, e.g., `in' or `pt'. The only reason for the
+% argument is to make the input look right: @dmn{pt} instead of @dmn{}pt.
+%
+\def\dmn#1{\thinspace #1}
+
+\def\kbd#1{\def\look{#1}\expandafter\kbdfoo\look??\par}
+
+% @l was never documented to mean ``switch to the Lisp font'',
+% and it is not used as such in any manual I can find. We need it for
+% Polish suppressed-l. --karl, 22sep96.
+%\def\l#1{{\li #1}\null}
+
+% Explicit font changes: @r, @sc, undocumented @ii.
+\def\r#1{{\rm #1}} % roman font
+\def\sc#1{{\smallcaps#1}} % smallcaps font
+\def\ii#1{{\it #1}} % italic font
+
+% @acronym downcases the argument and prints in smallcaps.
+\def\acronym#1{{\smallcaps \lowercase{#1}}}
+
+% @pounds{} is a sterling sign.
+\def\pounds{{\it\$}}
+
+
+\message{page headings,}
+
+\newskip\titlepagetopglue \titlepagetopglue = 1.5in
+\newskip\titlepagebottomglue \titlepagebottomglue = 2pc
+
+% First the title page. Must do @settitle before @titlepage.
+\newif\ifseenauthor
+\newif\iffinishedtitlepage
+
+% Do an implicit @contents or @shortcontents after @end titlepage if the
+% user says @setcontentsaftertitlepage or @setshortcontentsaftertitlepage.
+%
+\newif\ifsetcontentsaftertitlepage
+ \let\setcontentsaftertitlepage = \setcontentsaftertitlepagetrue
+\newif\ifsetshortcontentsaftertitlepage
+ \let\setshortcontentsaftertitlepage = \setshortcontentsaftertitlepagetrue
+
+\def\shorttitlepage{\parsearg\shorttitlepagezzz}
+\def\shorttitlepagezzz #1{\begingroup\hbox{}\vskip 1.5in \chaprm \centerline{#1}%
+ \endgroup\page\hbox{}\page}
+
+\def\titlepage{\begingroup \parindent=0pt \textfonts
+ \let\subtitlerm=\tenrm
+ \def\subtitlefont{\subtitlerm \normalbaselineskip = 13pt \normalbaselines}%
+ %
+ \def\authorfont{\authorrm \normalbaselineskip = 16pt \normalbaselines}%
+ %
+ % Leave some space at the very top of the page.
+ \vglue\titlepagetopglue
+ %
+ % Now you can print the title using @title.
+ \def\title{\parsearg\titlezzz}%
+ \def\titlezzz##1{\leftline{\titlefonts\rm ##1}
+ % print a rule at the page bottom also.
+ \finishedtitlepagefalse
+ \vskip4pt \hrule height 4pt width \hsize \vskip4pt}%
+ % No rule at page bottom unless we print one at the top with @title.
+ \finishedtitlepagetrue
+ %
+ % Now you can put text using @subtitle.
+ \def\subtitle{\parsearg\subtitlezzz}%
+ \def\subtitlezzz##1{{\subtitlefont \rightline{##1}}}%
+ %
+ % @author should come last, but may come many times.
+ \def\author{\parsearg\authorzzz}%
+ \def\authorzzz##1{\ifseenauthor\else\vskip 0pt plus 1filll\seenauthortrue\fi
+ {\authorfont \leftline{##1}}}%
+ %
+ % Most title ``pages'' are actually two pages long, with space
+ % at the top of the second. We don't want the ragged left on the second.
+ \let\oldpage = \page
+ \def\page{%
+ \iffinishedtitlepage\else
+ \finishtitlepage
+ \fi
+ \oldpage
+ \let\page = \oldpage
+ \hbox{}}%
+% \def\page{\oldpage \hbox{}}
+}
+
+\def\Etitlepage{%
+ \iffinishedtitlepage\else
+ \finishtitlepage
+ \fi
+ % It is important to do the page break before ending the group,
+ % because the headline and footline are only empty inside the group.
+ % If we use the new definition of \page, we always get a blank page
+ % after the title page, which we certainly don't want.
+ \oldpage
+ \endgroup
+ %
+ % Need this before the \...aftertitlepage checks so that if they are
+ % in effect the toc pages will come out with page numbers.
+ \HEADINGSon
+ %
+ % If they want short, they certainly want long too.
+ \ifsetshortcontentsaftertitlepage
+ \shortcontents
+ \contents
+ \global\let\shortcontents = \relax
+ \global\let\contents = \relax
+ \fi
+ %
+ \ifsetcontentsaftertitlepage
+ \contents
+ \global\let\contents = \relax
+ \global\let\shortcontents = \relax
+ \fi
+ %
+ \ifpdf \pdfmakepagedesttrue \fi
+}
+
+\def\finishtitlepage{%
+ \vskip4pt \hrule height 2pt width \hsize
+ \vskip\titlepagebottomglue
+ \finishedtitlepagetrue
+}
+
+%%% Set up page headings and footings.
+
+\let\thispage=\folio
+
+\newtoks\evenheadline % headline on even pages
+\newtoks\oddheadline % headline on odd pages
+\newtoks\evenfootline % footline on even pages
+\newtoks\oddfootline % footline on odd pages
+
+% Now make Tex use those variables
+\headline={{\textfonts\rm \ifodd\pageno \the\oddheadline
+ \else \the\evenheadline \fi}}
+\footline={{\textfonts\rm \ifodd\pageno \the\oddfootline
+ \else \the\evenfootline \fi}\HEADINGShook}
+\let\HEADINGShook=\relax
+
+% Commands to set those variables.
+% For example, this is what @headings on does
+% @evenheading @thistitle|@thispage|@thischapter
+% @oddheading @thischapter|@thispage|@thistitle
+% @evenfooting @thisfile||
+% @oddfooting ||@thisfile
+
+\def\evenheading{\parsearg\evenheadingxxx}
+\def\oddheading{\parsearg\oddheadingxxx}
+\def\everyheading{\parsearg\everyheadingxxx}
+
+\def\evenfooting{\parsearg\evenfootingxxx}
+\def\oddfooting{\parsearg\oddfootingxxx}
+\def\everyfooting{\parsearg\everyfootingxxx}
+
+{\catcode`\@=0 %
+
+\gdef\evenheadingxxx #1{\evenheadingyyy #1@|@|@|@|\finish}
+\gdef\evenheadingyyy #1@|#2@|#3@|#4\finish{%
+\global\evenheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
+
+\gdef\oddheadingxxx #1{\oddheadingyyy #1@|@|@|@|\finish}
+\gdef\oddheadingyyy #1@|#2@|#3@|#4\finish{%
+\global\oddheadline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
+
+\gdef\everyheadingxxx#1{\oddheadingxxx{#1}\evenheadingxxx{#1}}%
+
+\gdef\evenfootingxxx #1{\evenfootingyyy #1@|@|@|@|\finish}
+\gdef\evenfootingyyy #1@|#2@|#3@|#4\finish{%
+\global\evenfootline={\rlap{\centerline{#2}}\line{#1\hfil#3}}}
+
+\gdef\oddfootingxxx #1{\oddfootingyyy #1@|@|@|@|\finish}
+\gdef\oddfootingyyy #1@|#2@|#3@|#4\finish{%
+ \global\oddfootline = {\rlap{\centerline{#2}}\line{#1\hfil#3}}%
+ %
+ % Leave some space for the footline. Hopefully ok to assume
+ % @evenfooting will not be used by itself.
+ \global\advance\pageheight by -\baselineskip
+ \global\advance\vsize by -\baselineskip
+}
+
+\gdef\everyfootingxxx#1{\oddfootingxxx{#1}\evenfootingxxx{#1}}
+%
+}% unbind the catcode of @.
+
+% @headings double turns headings on for double-sided printing.
+% @headings single turns headings on for single-sided printing.
+% @headings off turns them off.
+% @headings on same as @headings double, retained for compatibility.
+% @headings after turns on double-sided headings after this page.
+% @headings doubleafter turns on double-sided headings after this page.
+% @headings singleafter turns on single-sided headings after this page.
+% By default, they are off at the start of a document,
+% and turned `on' after @end titlepage.
+
+\def\headings #1 {\csname HEADINGS#1\endcsname}
+
+\def\HEADINGSoff{
+\global\evenheadline={\hfil} \global\evenfootline={\hfil}
+\global\oddheadline={\hfil} \global\oddfootline={\hfil}}
+\HEADINGSoff
+% When we turn headings on, set the page number to 1.
+% For double-sided printing, put current file name in lower left corner,
+% chapter name on inside top of right hand pages, document
+% title on inside top of left hand pages, and page numbers on outside top
+% edge of all pages.
+\def\HEADINGSdouble{
+\global\pageno=1
+\global\evenfootline={\hfil}
+\global\oddfootline={\hfil}
+\global\evenheadline={\line{\folio\hfil\thistitle}}
+\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\let\contentsalignmacro = \chapoddpage
+}
+\let\contentsalignmacro = \chappager
+
+% For single-sided printing, chapter title goes across top left of page,
+% page number on top right.
+\def\HEADINGSsingle{
+\global\pageno=1
+\global\evenfootline={\hfil}
+\global\oddfootline={\hfil}
+\global\evenheadline={\line{\thischapter\hfil\folio}}
+\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\let\contentsalignmacro = \chappager
+}
+\def\HEADINGSon{\HEADINGSdouble}
+
+\def\HEADINGSafter{\let\HEADINGShook=\HEADINGSdoublex}
+\let\HEADINGSdoubleafter=\HEADINGSafter
+\def\HEADINGSdoublex{%
+\global\evenfootline={\hfil}
+\global\oddfootline={\hfil}
+\global\evenheadline={\line{\folio\hfil\thistitle}}
+\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\let\contentsalignmacro = \chapoddpage
+}
+
+\def\HEADINGSsingleafter{\let\HEADINGShook=\HEADINGSsinglex}
+\def\HEADINGSsinglex{%
+\global\evenfootline={\hfil}
+\global\oddfootline={\hfil}
+\global\evenheadline={\line{\thischapter\hfil\folio}}
+\global\oddheadline={\line{\thischapter\hfil\folio}}
+\global\let\contentsalignmacro = \chappager
+}
+
+% Subroutines used in generating headings
+% This produces Day Month Year style of output.
+% Only define if not already defined, in case a txi-??.tex file has set
+% up a different format (e.g., txi-cs.tex does this).
+\ifx\today\undefined
+\def\today{%
+ \number\day\space
+ \ifcase\month
+ \or\putwordMJan\or\putwordMFeb\or\putwordMMar\or\putwordMApr
+ \or\putwordMMay\or\putwordMJun\or\putwordMJul\or\putwordMAug
+ \or\putwordMSep\or\putwordMOct\or\putwordMNov\or\putwordMDec
+ \fi
+ \space\number\year}
+\fi
+
+% @settitle line... specifies the title of the document, for headings.
+% It generates no output of its own.
+\def\thistitle{\putwordNoTitle}
+\def\settitle{\parsearg\settitlezzz}
+\def\settitlezzz #1{\gdef\thistitle{#1}}
+
+
+\message{tables,}
+% Tables -- @table, @ftable, @vtable, @item(x), @kitem(x), @xitem(x).
+
+% default indentation of table text
+\newdimen\tableindent \tableindent=.8in
+% default indentation of @itemize and @enumerate text
+\newdimen\itemindent \itemindent=.3in
+% margin between end of table item and start of table text.
+\newdimen\itemmargin \itemmargin=.1in
+
+% used internally for \itemindent minus \itemmargin
+\newdimen\itemmax
+
+% Note @table, @vtable, and @vtable define @item, @itemx, etc., with
+% these defs.
+% They also define \itemindex
+% to index the item name in whatever manner is desired (perhaps none).
+
+\newif\ifitemxneedsnegativevskip
+
+\def\itemxpar{\par\ifitemxneedsnegativevskip\nobreak\vskip-\parskip\nobreak\fi}
+
+\def\internalBitem{\smallbreak \parsearg\itemzzz}
+\def\internalBitemx{\itemxpar \parsearg\itemzzz}
+
+\def\internalBxitem "#1"{\def\xitemsubtopix{#1} \smallbreak \parsearg\xitemzzz}
+\def\internalBxitemx "#1"{\def\xitemsubtopix{#1} \itemxpar \parsearg\xitemzzz}
+
+\def\internalBkitem{\smallbreak \parsearg\kitemzzz}
+\def\internalBkitemx{\itemxpar \parsearg\kitemzzz}
+
+\def\kitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \lastfunction}}%
+ \itemzzz {#1}}
+
+\def\xitemzzz #1{\dosubind {kw}{\code{#1}}{for {\bf \xitemsubtopic}}%
+ \itemzzz {#1}}
+
+\def\itemzzz #1{\begingroup %
+ \advance\hsize by -\rightskip
+ \advance\hsize by -\tableindent
+ \setbox0=\hbox{\itemfont{#1}}%
+ \itemindex{#1}%
+ \nobreak % This prevents a break before @itemx.
+ %
+ % If the item text does not fit in the space we have, put it on a line
+ % by itself, and do not allow a page break either before or after that
+ % line. We do not start a paragraph here because then if the next
+ % command is, e.g., @kindex, the whatsit would get put into the
+ % horizontal list on a line by itself, resulting in extra blank space.
+ \ifdim \wd0>\itemmax
+ %
+ % Make this a paragraph so we get the \parskip glue and wrapping,
+ % but leave it ragged-right.
+ \begingroup
+ \advance\leftskip by-\tableindent
+ \advance\hsize by\tableindent
+ \advance\rightskip by0pt plus1fil
+ \leavevmode\unhbox0\par
+ \endgroup
+ %
+ % We're going to be starting a paragraph, but we don't want the
+ % \parskip glue -- logically it's part of the @item we just started.
+ \nobreak \vskip-\parskip
+ %
+ % Stop a page break at the \parskip glue coming up. Unfortunately
+ % we can't prevent a possible page break at the following
+ % \baselineskip glue.
+ \nobreak
+ \endgroup
+ \itemxneedsnegativevskipfalse
+ \else
+ % The item text fits into the space. Start a paragraph, so that the
+ % following text (if any) will end up on the same line.
+ \noindent
+ % Do this with kerns and \unhbox so that if there is a footnote in
+ % the item text, it can migrate to the main vertical list and
+ % eventually be printed.
+ \nobreak\kern-\tableindent
+ \dimen0 = \itemmax \advance\dimen0 by \itemmargin \advance\dimen0 by -\wd0
+ \unhbox0
+ \nobreak\kern\dimen0
+ \endgroup
+ \itemxneedsnegativevskiptrue
+ \fi
+}
+
+\def\item{\errmessage{@item while not in a table}}
+\def\itemx{\errmessage{@itemx while not in a table}}
+\def\kitem{\errmessage{@kitem while not in a table}}
+\def\kitemx{\errmessage{@kitemx while not in a table}}
+\def\xitem{\errmessage{@xitem while not in a table}}
+\def\xitemx{\errmessage{@xitemx while not in a table}}
+
+% Contains a kludge to get @end[description] to work.
+\def\description{\tablez{\dontindex}{1}{}{}{}{}}
+
+% @table, @ftable, @vtable.
+\def\table{\begingroup\inENV\obeylines\obeyspaces\tablex}
+{\obeylines\obeyspaces%
+\gdef\tablex #1^^M{%
+\tabley\dontindex#1 \endtabley}}
+
+\def\ftable{\begingroup\inENV\obeylines\obeyspaces\ftablex}
+{\obeylines\obeyspaces%
+\gdef\ftablex #1^^M{%
+\tabley\fnitemindex#1 \endtabley
+\def\Eftable{\endgraf\afterenvbreak\endgroup}%
+\let\Etable=\relax}}
+
+\def\vtable{\begingroup\inENV\obeylines\obeyspaces\vtablex}
+{\obeylines\obeyspaces%
+\gdef\vtablex #1^^M{%
+\tabley\vritemindex#1 \endtabley
+\def\Evtable{\endgraf\afterenvbreak\endgroup}%
+\let\Etable=\relax}}
+
+\def\dontindex #1{}
+\def\fnitemindex #1{\doind {fn}{\code{#1}}}%
+\def\vritemindex #1{\doind {vr}{\code{#1}}}%
+
+{\obeyspaces %
+\gdef\tabley#1#2 #3 #4 #5 #6 #7\endtabley{\endgroup%
+\tablez{#1}{#2}{#3}{#4}{#5}{#6}}}
+
+\def\tablez #1#2#3#4#5#6{%
+\aboveenvbreak %
+\begingroup %
+\def\Edescription{\Etable}% Necessary kludge.
+\let\itemindex=#1%
+\ifnum 0#3>0 \advance \leftskip by #3\mil \fi %
+\ifnum 0#4>0 \tableindent=#4\mil \fi %
+\ifnum 0#5>0 \advance \rightskip by #5\mil \fi %
+\def\itemfont{#2}%
+\itemmax=\tableindent %
+\advance \itemmax by -\itemmargin %
+\advance \leftskip by \tableindent %
+\exdentamount=\tableindent
+\parindent = 0pt
+\parskip = \smallskipamount
+\ifdim \parskip=0pt \parskip=2pt \fi%
+\def\Etable{\endgraf\afterenvbreak\endgroup}%
+\let\item = \internalBitem %
+\let\itemx = \internalBitemx %
+\let\kitem = \internalBkitem %
+\let\kitemx = \internalBkitemx %
+\let\xitem = \internalBxitem %
+\let\xitemx = \internalBxitemx %
+}
+
+% This is the counter used by @enumerate, which is really @itemize
+
+\newcount \itemno
+
+\def\itemize{\parsearg\itemizezzz}
+
+\def\itemizezzz #1{%
+ \begingroup % ended by the @end itemize
+ \itemizey {#1}{\Eitemize}
+}
+
+\def\itemizey #1#2{%
+\aboveenvbreak %
+\itemmax=\itemindent %
+\advance \itemmax by -\itemmargin %
+\advance \leftskip by \itemindent %
+\exdentamount=\itemindent
+\parindent = 0pt %
+\parskip = \smallskipamount %
+\ifdim \parskip=0pt \parskip=2pt \fi%
+\def#2{\endgraf\afterenvbreak\endgroup}%
+\def\itemcontents{#1}%
+\let\item=\itemizeitem}
+
+% Set sfcode to normal for the chars that usually have another value.
+% These are `.?!:;,'
+\def\frenchspacing{\sfcode46=1000 \sfcode63=1000 \sfcode33=1000
+ \sfcode58=1000 \sfcode59=1000 \sfcode44=1000 }
+
+% \splitoff TOKENS\endmark defines \first to be the first token in
+% TOKENS, and \rest to be the remainder.
+%
+\def\splitoff#1#2\endmark{\def\first{#1}\def\rest{#2}}%
+
+% Allow an optional argument of an uppercase letter, lowercase letter,
+% or number, to specify the first label in the enumerated list. No
+% argument is the same as `1'.
+%
+\def\enumerate{\parsearg\enumeratezzz}
+\def\enumeratezzz #1{\enumeratey #1 \endenumeratey}
+\def\enumeratey #1 #2\endenumeratey{%
+ \begingroup % ended by the @end enumerate
+ %
+ % If we were given no argument, pretend we were given `1'.
+ \def\thearg{#1}%
+ \ifx\thearg\empty \def\thearg{1}\fi
+ %
+ % Detect if the argument is a single token. If so, it might be a
+ % letter. Otherwise, the only valid thing it can be is a number.
+ % (We will always have one token, because of the test we just made.
+ % This is a good thing, since \splitoff doesn't work given nothing at
+ % all -- the first parameter is undelimited.)
+ \expandafter\splitoff\thearg\endmark
+ \ifx\rest\empty
+ % Only one token in the argument. It could still be anything.
+ % A ``lowercase letter'' is one whose \lccode is nonzero.
+ % An ``uppercase letter'' is one whose \lccode is both nonzero, and
+ % not equal to itself.
+ % Otherwise, we assume it's a number.
+ %
+ % We need the \relax at the end of the \ifnum lines to stop TeX from
+ % continuing to look for a <number>.
+ %
+ \ifnum\lccode\expandafter`\thearg=0\relax
+ \numericenumerate % a number (we hope)
+ \else
+ % It's a letter.
+ \ifnum\lccode\expandafter`\thearg=\expandafter`\thearg\relax
+ \lowercaseenumerate % lowercase letter
+ \else
+ \uppercaseenumerate % uppercase letter
+ \fi
+ \fi
+ \else
+ % Multiple tokens in the argument. We hope it's a number.
+ \numericenumerate
+ \fi
+}
+
+% An @enumerate whose labels are integers. The starting integer is
+% given in \thearg.
+%
+\def\numericenumerate{%
+ \itemno = \thearg
+ \startenumeration{\the\itemno}%
+}
+
+% The starting (lowercase) letter is in \thearg.
+\def\lowercaseenumerate{%
+ \itemno = \expandafter`\thearg
+ \startenumeration{%
+ % Be sure we're not beyond the end of the alphabet.
+ \ifnum\itemno=0
+ \errmessage{No more lowercase letters in @enumerate; get a bigger
+ alphabet}%
+ \fi
+ \char\lccode\itemno
+ }%
+}
+
+% The starting (uppercase) letter is in \thearg.
+\def\uppercaseenumerate{%
+ \itemno = \expandafter`\thearg
+ \startenumeration{%
+ % Be sure we're not beyond the end of the alphabet.
+ \ifnum\itemno=0
+ \errmessage{No more uppercase letters in @enumerate; get a bigger
+ alphabet}
+ \fi
+ \char\uccode\itemno
+ }%
+}
+
+% Call itemizey, adding a period to the first argument and supplying the
+% common last two arguments. Also subtract one from the initial value in
+% \itemno, since @item increments \itemno.
+%
+\def\startenumeration#1{%
+ \advance\itemno by -1
+ \itemizey{#1.}\Eenumerate\flushcr
+}
+
+% @alphaenumerate and @capsenumerate are abbreviations for giving an arg
+% to @enumerate.
+%
+\def\alphaenumerate{\enumerate{a}}
+\def\capsenumerate{\enumerate{A}}
+\def\Ealphaenumerate{\Eenumerate}
+\def\Ecapsenumerate{\Eenumerate}
+
+% Definition of @item while inside @itemize.
+
+\def\itemizeitem{%
+\advance\itemno by 1
+{\let\par=\endgraf \smallbreak}%
+\ifhmode \errmessage{In hmode at itemizeitem}\fi
+{\parskip=0in \hskip 0pt
+\hbox to 0pt{\hss \itemcontents\hskip \itemmargin}%
+\vadjust{\penalty 1200}}%
+\flushcr}
+
+% @multitable macros
+% Amy Hendrickson, 8/18/94, 3/6/96
+%
+% @multitable ... @end multitable will make as many columns as desired.
+% Contents of each column will wrap at width given in preamble. Width
+% can be specified either with sample text given in a template line,
+% or in percent of \hsize, the current width of text on page.
+
+% Table can continue over pages but will only break between lines.
+
+% To make preamble:
+%
+% Either define widths of columns in terms of percent of \hsize:
+% @multitable @columnfractions .25 .3 .45
+% @item ...
+%
+% Numbers following @columnfractions are the percent of the total
+% current hsize to be used for each column. You may use as many
+% columns as desired.
+
+
+% Or use a template:
+% @multitable {Column 1 template} {Column 2 template} {Column 3 template}
+% @item ...
+% using the widest term desired in each column.
+%
+% For those who want to use more than one line's worth of words in
+% the preamble, break the line within one argument and it
+% will parse correctly, i.e.,
+%
+% @multitable {Column 1 template} {Column 2 template} {Column 3
+% template}
+% Not:
+% @multitable {Column 1 template} {Column 2 template}
+% {Column 3 template}
+
+% Each new table line starts with @item, each subsequent new column
+% starts with @tab. Empty columns may be produced by supplying @tab's
+% with nothing between them for as many times as empty columns are needed,
+% ie, @tab@tab@tab will produce two empty columns.
+
+% @item, @tab, @multitable or @end multitable do not need to be on their
+% own lines, but it will not hurt if they are.
+
+% Sample multitable:
+
+% @multitable {Column 1 template} {Column 2 template} {Column 3 template}
+% @item first col stuff @tab second col stuff @tab third col
+% @item
+% first col stuff
+% @tab
+% second col stuff
+% @tab
+% third col
+% @item first col stuff @tab second col stuff
+% @tab Many paragraphs of text may be used in any column.
+%
+% They will wrap at the width determined by the template.
+% @item@tab@tab This will be in third column.
+% @end multitable
+
+% Default dimensions may be reset by user.
+% @multitableparskip is vertical space between paragraphs in table.
+% @multitableparindent is paragraph indent in table.
+% @multitablecolmargin is horizontal space to be left between columns.
+% @multitablelinespace is space to leave between table items, baseline
+% to baseline.
+% 0pt means it depends on current normal line spacing.
+%
+\newskip\multitableparskip
+\newskip\multitableparindent
+\newdimen\multitablecolspace
+\newskip\multitablelinespace
+\multitableparskip=0pt
+\multitableparindent=6pt
+\multitablecolspace=12pt
+\multitablelinespace=0pt
+
+% Macros used to set up halign preamble:
+%
+\let\endsetuptable\relax
+\def\xendsetuptable{\endsetuptable}
+\let\columnfractions\relax
+\def\xcolumnfractions{\columnfractions}
+\newif\ifsetpercent
+
+% #1 is the part of the @columnfraction before the decimal point, which
+% is presumably either 0 or the empty string (but we don't check, we
+% just throw it away). #2 is the decimal part, which we use as the
+% percent of \hsize for this column.
+\def\pickupwholefraction#1.#2 {%
+ \global\advance\colcount by 1
+ \expandafter\xdef\csname col\the\colcount\endcsname{.#2\hsize}%
+ \setuptable
+}
+
+\newcount\colcount
+\def\setuptable#1{%
+ \def\firstarg{#1}%
+ \ifx\firstarg\xendsetuptable
+ \let\go = \relax
+ \else
+ \ifx\firstarg\xcolumnfractions
+ \global\setpercenttrue
+ \else
+ \ifsetpercent
+ \let\go\pickupwholefraction
+ \else
+ \global\advance\colcount by 1
+ \setbox0=\hbox{#1\unskip }% Add a normal word space as a separator;
+ % typically that is always in the input, anyway.
+ \expandafter\xdef\csname col\the\colcount\endcsname{\the\wd0}%
+ \fi
+ \fi
+ \ifx\go\pickupwholefraction
+ % Put the argument back for the \pickupwholefraction call, so
+ % we'll always have a period there to be parsed.
+ \def\go{\pickupwholefraction#1}%
+ \else
+ \let\go = \setuptable
+ \fi%
+ \fi
+ \go
+}
+
+% This used to have \hskip1sp. But then the space in a template line is
+% not enough. That is bad. So let's go back to just & until we
+% encounter the problem it was intended to solve again.
+% --karl, nathan@acm.org, 20apr99.
+\def\tab{&}
+
+% @multitable ... @end multitable definitions:
+%
+\def\multitable{\parsearg\dotable}
+\def\dotable#1{\bgroup
+ \vskip\parskip
+ \let\item\crcr
+ \tolerance=9500
+ \hbadness=9500
+ \setmultitablespacing
+ \parskip=\multitableparskip
+ \parindent=\multitableparindent
+ \overfullrule=0pt
+ \global\colcount=0
+ \def\Emultitable{\global\setpercentfalse\cr\egroup\egroup}%
+ %
+ % To parse everything between @multitable and @item:
+ \setuptable#1 \endsetuptable
+ %
+ % \everycr will reset column counter, \colcount, at the end of
+ % each line. Every column entry will cause \colcount to advance by one.
+ % The table preamble
+ % looks at the current \colcount to find the correct column width.
+ \everycr{\noalign{%
+ %
+ % \filbreak%% keeps underfull box messages off when table breaks over pages.
+ % Maybe so, but it also creates really weird page breaks when the table
+ % breaks over pages. Wouldn't \vfil be better? Wait until the problem
+ % manifests itself, so it can be fixed for real --karl.
+ \global\colcount=0\relax}}%
+ %
+ % This preamble sets up a generic column definition, which will
+ % be used as many times as user calls for columns.
+ % \vtop will set a single line and will also let text wrap and
+ % continue for many paragraphs if desired.
+ \halign\bgroup&\global\advance\colcount by 1\relax
+ \multistrut\vtop{\hsize=\expandafter\csname col\the\colcount\endcsname
+ %
+ % In order to keep entries from bumping into each other
+ % we will add a \leftskip of \multitablecolspace to all columns after
+ % the first one.
+ %
+ % If a template has been used, we will add \multitablecolspace
+ % to the width of each template entry.
+ %
+ % If the user has set preamble in terms of percent of \hsize we will
+ % use that dimension as the width of the column, and the \leftskip
+ % will keep entries from bumping into each other. Table will start at
+ % left margin and final column will justify at right margin.
+ %
+ % Make sure we don't inherit \rightskip from the outer environment.
+ \rightskip=0pt
+ \ifnum\colcount=1
+ % The first column will be indented with the surrounding text.
+ \advance\hsize by\leftskip
+ \else
+ \ifsetpercent \else
+ % If user has not set preamble in terms of percent of \hsize
+ % we will advance \hsize by \multitablecolspace.
+ \advance\hsize by \multitablecolspace
+ \fi
+ % In either case we will make \leftskip=\multitablecolspace:
+ \leftskip=\multitablecolspace
+ \fi
+ % Ignoring space at the beginning and end avoids an occasional spurious
+ % blank line, when TeX decides to break the line at the space before the
+ % box from the multistrut, so the strut ends up on a line by itself.
+ % For example:
+ % @multitable @columnfractions .11 .89
+ % @item @code{#}
+ % @tab Legal holiday which is valid in major parts of the whole country.
+ % Is automatically provided with highlighting sequences respectively marking
+ % characters.
+ \noindent\ignorespaces##\unskip\multistrut}\cr
+}
+
+\def\setmultitablespacing{% test to see if user has set \multitablelinespace.
+% If so, do nothing. If not, give it an appropriate dimension based on
+% current baselineskip.
+\ifdim\multitablelinespace=0pt
+\setbox0=\vbox{X}\global\multitablelinespace=\the\baselineskip
+\global\advance\multitablelinespace by-\ht0
+%% strut to put in table in case some entry doesn't have descenders,
+%% to keep lines equally spaced
+\let\multistrut = \strut
+\else
+%% FIXME: what is \box0 supposed to be?
+\gdef\multistrut{\vrule height\multitablelinespace depth\dp0
+width0pt\relax} \fi
+%% Test to see if parskip is larger than space between lines of
+%% table. If not, do nothing.
+%% If so, set to same dimension as multitablelinespace.
+\ifdim\multitableparskip>\multitablelinespace
+\global\multitableparskip=\multitablelinespace
+\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
+ %% than skip between lines in the table.
+\fi%
+\ifdim\multitableparskip=0pt
+\global\multitableparskip=\multitablelinespace
+\global\advance\multitableparskip-7pt %% to keep parskip somewhat smaller
+ %% than skip between lines in the table.
+\fi}
+
+
+\message{conditionals,}
+% Prevent errors for section commands.
+% Used in @ignore and in failing conditionals.
+\def\ignoresections{%
+ \let\chapter=\relax
+ \let\unnumbered=\relax
+ \let\top=\relax
+ \let\unnumberedsec=\relax
+ \let\unnumberedsection=\relax
+ \let\unnumberedsubsec=\relax
+ \let\unnumberedsubsection=\relax
+ \let\unnumberedsubsubsec=\relax
+ \let\unnumberedsubsubsection=\relax
+ \let\section=\relax
+ \let\subsec=\relax
+ \let\subsubsec=\relax
+ \let\subsection=\relax
+ \let\subsubsection=\relax
+ \let\appendix=\relax
+ \let\appendixsec=\relax
+ \let\appendixsection=\relax
+ \let\appendixsubsec=\relax
+ \let\appendixsubsection=\relax
+ \let\appendixsubsubsec=\relax
+ \let\appendixsubsubsection=\relax
+ \let\contents=\relax
+ \let\smallbook=\relax
+ \let\titlepage=\relax
+}
+
+% Used in nested conditionals, where we have to parse the Texinfo source
+% and so want to turn off most commands, in case they are used
+% incorrectly.
+%
+\def\ignoremorecommands{%
+ \let\defcodeindex = \relax
+ \let\defcv = \relax
+ \let\deffn = \relax
+ \let\deffnx = \relax
+ \let\defindex = \relax
+ \let\defivar = \relax
+ \let\defmac = \relax
+ \let\defmethod = \relax
+ \let\defop = \relax
+ \let\defopt = \relax
+ \let\defspec = \relax
+ \let\deftp = \relax
+ \let\deftypefn = \relax
+ \let\deftypefun = \relax
+ \let\deftypeivar = \relax
+ \let\deftypeop = \relax
+ \let\deftypevar = \relax
+ \let\deftypevr = \relax
+ \let\defun = \relax
+ \let\defvar = \relax
+ \let\defvr = \relax
+ \let\ref = \relax
+ \let\xref = \relax
+ \let\printindex = \relax
+ \let\pxref = \relax
+ \let\settitle = \relax
+ \let\setchapternewpage = \relax
+ \let\setchapterstyle = \relax
+ \let\everyheading = \relax
+ \let\evenheading = \relax
+ \let\oddheading = \relax
+ \let\everyfooting = \relax
+ \let\evenfooting = \relax
+ \let\oddfooting = \relax
+ \let\headings = \relax
+ \let\include = \relax
+ \let\lowersections = \relax
+ \let\down = \relax
+ \let\raisesections = \relax
+ \let\up = \relax
+ \let\set = \relax
+ \let\clear = \relax
+ \let\item = \relax
+}
+
+% Ignore @ignore ... @end ignore.
+%
+\def\ignore{\doignore{ignore}}
+
+% Also ignore @ifinfo, @ifhtml, @ifnottex, @html, @menu,
+% @documentdescription, and @direntry text.
+%
+\def\ifinfo{\doignore{ifinfo}}
+\def\ifhtml{\doignore{ifhtml}}
+\def\ifnottex{\doignore{ifnottex}}
+\def\html{\doignore{html}}
+\def\menu{\doignore{menu}}
+\def\documentdescription{\doignore{documentdescription}}
+\def\direntry{\doignore{direntry}}
+
+% @dircategory CATEGORY -- specify a category of the dir file
+% which this file should belong to. Ignore this in TeX.
+\let\dircategory = \comment
+
+% Ignore text until a line `@end #1'.
+%
+\def\doignore#1{\begingroup
+ % Don't complain about control sequences we have declared \outer.
+ \ignoresections
+ %
+ % Define a command to swallow text until we reach `@end #1'.
+ % This @ is a catcode 12 token (that is the normal catcode of @ in
+ % this texinfo.tex file). We change the catcode of @ below to match.
+ \long\def\doignoretext##1@end #1{\enddoignore}%
+ %
+ % Make sure that spaces turn into tokens that match what \doignoretext wants.
+ \catcode32 = 10
+ %
+ % Ignore braces, too, so mismatched braces don't cause trouble.
+ \catcode`\{ = 9
+ \catcode`\} = 9
+ %
+ % We must not have @c interpreted as a control sequence.
+ \catcode`\@ = 12
+ %
+ % Make the letter c a comment character so that the rest of the line
+ % will be ignored. This way, the document can have (for example)
+ % @c @end ifinfo
+ % and the @end ifinfo will be properly ignored.
+ % (We've just changed @ to catcode 12.)
+ \catcode`\c = 14
+ %
+ % And now expand that command.
+ \doignoretext
+}
+
+% What we do to finish off ignored text.
+%
+\def\enddoignore{\endgroup\ignorespaces}%
+
+\newif\ifwarnedobs\warnedobsfalse
+\def\obstexwarn{%
+ \ifwarnedobs\relax\else
+ % We need to warn folks that they may have trouble with TeX 3.0.
+ % This uses \immediate\write16 rather than \message to get newlines.
+ \immediate\write16{}
+ \immediate\write16{WARNING: for users of Unix TeX 3.0!}
+ \immediate\write16{This manual trips a bug in TeX version 3.0 (tex hangs).}
+ \immediate\write16{If you are running another version of TeX, relax.}
+ \immediate\write16{If you are running Unix TeX 3.0, kill this TeX process.}
+ \immediate\write16{ Then upgrade your TeX installation if you can.}
+ \immediate\write16{ (See ftp://ftp.gnu.org/pub/gnu/TeX.README.)}
+ \immediate\write16{If you are stuck with version 3.0, run the}
+ \immediate\write16{ script ``tex3patch'' from the Texinfo distribution}
+ \immediate\write16{ to use a workaround.}
+ \immediate\write16{}
+ \global\warnedobstrue
+ \fi
+}
+
+% **In TeX 3.0, setting text in \nullfont hangs tex. For a
+% workaround (which requires the file ``dummy.tfm'' to be installed),
+% uncomment the following line:
+%%%%%\font\nullfont=dummy\let\obstexwarn=\relax
+
+% Ignore text, except that we keep track of conditional commands for
+% purposes of nesting, up to an `@end #1' command.
+%
+\def\nestedignore#1{%
+ \obstexwarn
+ % We must actually expand the ignored text to look for the @end
+ % command, so that nested ignore constructs work. Thus, we put the
+ % text into a \vbox and then do nothing with the result. To minimize
+ % the change of memory overflow, we follow the approach outlined on
+ % page 401 of the TeXbook: make the current font be a dummy font.
+ %
+ \setbox0 = \vbox\bgroup
+ % Don't complain about control sequences we have declared \outer.
+ \ignoresections
+ %
+ % Define `@end #1' to end the box, which will in turn undefine the
+ % @end command again.
+ \expandafter\def\csname E#1\endcsname{\egroup\ignorespaces}%
+ %
+ % We are going to be parsing Texinfo commands. Most cause no
+ % trouble when they are used incorrectly, but some commands do
+ % complicated argument parsing or otherwise get confused, so we
+ % undefine them.
+ %
+ % We can't do anything about stray @-signs, unfortunately;
+ % they'll produce `undefined control sequence' errors.
+ \ignoremorecommands
+ %
+ % Set the current font to be \nullfont, a TeX primitive, and define
+ % all the font commands to also use \nullfont. We don't use
+ % dummy.tfm, as suggested in the TeXbook, because not all sites
+ % might have that installed. Therefore, math mode will still
+ % produce output, but that should be an extremely small amount of
+ % stuff compared to the main input.
+ %
+ \nullfont
+ \let\tenrm=\nullfont \let\tenit=\nullfont \let\tensl=\nullfont
+ \let\tenbf=\nullfont \let\tentt=\nullfont \let\smallcaps=\nullfont
+ \let\tensf=\nullfont
+ % Similarly for index fonts.
+ \let\smallrm=\nullfont \let\smallit=\nullfont \let\smallsl=\nullfont
+ \let\smallbf=\nullfont \let\smalltt=\nullfont \let\smallsc=\nullfont
+ \let\smallsf=\nullfont
+ % Similarly for smallexample fonts.
+ \let\smallerrm=\nullfont \let\smallerit=\nullfont \let\smallersl=\nullfont
+ \let\smallerbf=\nullfont \let\smallertt=\nullfont \let\smallersc=\nullfont
+ \let\smallersf=\nullfont
+ %
+ % Don't complain when characters are missing from the fonts.
+ \tracinglostchars = 0
+ %
+ % Don't bother to do space factor calculations.
+ \frenchspacing
+ %
+ % Don't report underfull hboxes.
+ \hbadness = 10000
+ %
+ % Do minimal line-breaking.
+ \pretolerance = 10000
+ %
+ % Do not execute instructions in @tex
+ \def\tex{\doignore{tex}}%
+ % Do not execute macro definitions.
+ % `c' is a comment character, so the word `macro' will get cut off.
+ \def\macro{\doignore{ma}}%
+}
+
+% @set VAR sets the variable VAR to an empty value.
+% @set VAR REST-OF-LINE sets VAR to the value REST-OF-LINE.
+%
+% Since we want to separate VAR from REST-OF-LINE (which might be
+% empty), we can't just use \parsearg; we have to insert a space of our
+% own to delimit the rest of the line, and then take it out again if we
+% didn't need it. Make sure the catcode of space is correct to avoid
+% losing inside @example, for instance.
+%
+\def\set{\begingroup\catcode` =10
+ \catcode`\-=12 \catcode`\_=12 % Allow - and _ in VAR.
+ \parsearg\setxxx}
+\def\setxxx#1{\setyyy#1 \endsetyyy}
+\def\setyyy#1 #2\endsetyyy{%
+ \def\temp{#2}%
+ \ifx\temp\empty \global\expandafter\let\csname SET#1\endcsname = \empty
+ \else \setzzz{#1}#2\endsetzzz % Remove the trailing space \setxxx inserted.
+ \fi
+ \endgroup
+}
+% Can't use \xdef to pre-expand #2 and save some time, since \temp or
+% \next or other control sequences that we've defined might get us into
+% an infinite loop. Consider `@set foo @cite{bar}'.
+\def\setzzz#1#2 \endsetzzz{\expandafter\gdef\csname SET#1\endcsname{#2}}
+
+% @clear VAR clears (i.e., unsets) the variable VAR.
+%
+\def\clear{\parsearg\clearxxx}
+\def\clearxxx#1{\global\expandafter\let\csname SET#1\endcsname=\relax}
+
+% @value{foo} gets the text saved in variable foo.
+{
+ \catcode`\_ = \active
+ %
+ % We might end up with active _ or - characters in the argument if
+ % we're called from @code, as @code{@value{foo-bar_}}. So \let any
+ % such active characters to their normal equivalents.
+ \gdef\value{\begingroup
+ \catcode`\-=12 \catcode`\_=12
+ \indexbreaks \let_\normalunderscore
+ \valuexxx}
+}
+\def\valuexxx#1{\expandablevalue{#1}\endgroup}
+
+% We have this subroutine so that we can handle at least some @value's
+% properly in indexes (we \let\value to this in \indexdummies). Ones
+% whose names contain - or _ still won't work, but we can't do anything
+% about that. The command has to be fully expandable, since the result
+% winds up in the index file. This means that if the variable's value
+% contains other Texinfo commands, it's almost certain it will fail
+% (although perhaps we could fix that with sufficient work to do a
+% one-level expansion on the result, instead of complete).
+%
+\def\expandablevalue#1{%
+ \expandafter\ifx\csname SET#1\endcsname\relax
+ {[No value for ``#1'']}%
+ \else
+ \csname SET#1\endcsname
+ \fi
+}
+
+% @ifset VAR ... @end ifset reads the `...' iff VAR has been defined
+% with @set.
+%
+\def\ifset{\parsearg\ifsetxxx}
+\def\ifsetxxx #1{%
+ \expandafter\ifx\csname SET#1\endcsname\relax
+ \expandafter\ifsetfail
+ \else
+ \expandafter\ifsetsucceed
+ \fi
+}
+\def\ifsetsucceed{\conditionalsucceed{ifset}}
+\def\ifsetfail{\nestedignore{ifset}}
+\defineunmatchedend{ifset}
+
+% @ifclear VAR ... @end ifclear reads the `...' iff VAR has never been
+% defined with @set, or has been undefined with @clear.
+%
+\def\ifclear{\parsearg\ifclearxxx}
+\def\ifclearxxx #1{%
+ \expandafter\ifx\csname SET#1\endcsname\relax
+ \expandafter\ifclearsucceed
+ \else
+ \expandafter\ifclearfail
+ \fi
+}
+\def\ifclearsucceed{\conditionalsucceed{ifclear}}
+\def\ifclearfail{\nestedignore{ifclear}}
+\defineunmatchedend{ifclear}
+
+% @iftex, @ifnothtml, @ifnotinfo always succeed; we read the text
+% following, through the first @end iftex (etc.). Make `@end iftex'
+% (etc.) valid only after an @iftex.
+%
+\def\iftex{\conditionalsucceed{iftex}}
+\def\ifnothtml{\conditionalsucceed{ifnothtml}}
+\def\ifnotinfo{\conditionalsucceed{ifnotinfo}}
+\defineunmatchedend{iftex}
+\defineunmatchedend{ifnothtml}
+\defineunmatchedend{ifnotinfo}
+
+% We can't just want to start a group at @iftex (for example) and end it
+% at @end iftex, since then @set commands inside the conditional have no
+% effect (they'd get reverted at the end of the group). So we must
+% define \Eiftex to redefine itself to be its previous value. (We can't
+% just define it to fail again with an ``unmatched end'' error, since
+% the @ifset might be nested.)
+%
+\def\conditionalsucceed#1{%
+ \edef\temp{%
+ % Remember the current value of \E#1.
+ \let\nece{prevE#1} = \nece{E#1}%
+ %
+ % At the `@end #1', redefine \E#1 to be its previous value.
+ \def\nece{E#1}{\let\nece{E#1} = \nece{prevE#1}}%
+ }%
+ \temp
+}
+
+% We need to expand lots of \csname's, but we don't want to expand the
+% control sequences after we've constructed them.
+%
+\def\nece#1{\expandafter\noexpand\csname#1\endcsname}
+
+% @defininfoenclose.
+\let\definfoenclose=\comment
+
+
+\message{indexing,}
+% Index generation facilities
+
+% Define \newwrite to be identical to plain tex's \newwrite
+% except not \outer, so it can be used within \newindex.
+{\catcode`\@=11
+\gdef\newwrite{\alloc@7\write\chardef\sixt@@n}}
+
+% \newindex {foo} defines an index named foo.
+% It automatically defines \fooindex such that
+% \fooindex ...rest of line... puts an entry in the index foo.
+% It also defines \fooindfile to be the number of the output channel for
+% the file that accumulates this index. The file's extension is foo.
+% The name of an index should be no more than 2 characters long
+% for the sake of vms.
+%
+\def\newindex#1{%
+ \iflinks
+ \expandafter\newwrite \csname#1indfile\endcsname
+ \openout \csname#1indfile\endcsname \jobname.#1 % Open the file
+ \fi
+ \expandafter\xdef\csname#1index\endcsname{% % Define @#1index
+ \noexpand\doindex{#1}}
+}
+
+% @defindex foo == \newindex{foo}
+%
+\def\defindex{\parsearg\newindex}
+
+% Define @defcodeindex, like @defindex except put all entries in @code.
+%
+\def\defcodeindex{\parsearg\newcodeindex}
+%
+\def\newcodeindex#1{%
+ \iflinks
+ \expandafter\newwrite \csname#1indfile\endcsname
+ \openout \csname#1indfile\endcsname \jobname.#1
+ \fi
+ \expandafter\xdef\csname#1index\endcsname{%
+ \noexpand\docodeindex{#1}}%
+}
+
+
+% @synindex foo bar makes index foo feed into index bar.
+% Do this instead of @defindex foo if you don't want it as a separate index.
+%
+% @syncodeindex foo bar similar, but put all entries made for index foo
+% inside @code.
+%
+\def\synindex#1 #2 {\dosynindex\doindex{#1}{#2}}
+\def\syncodeindex#1 #2 {\dosynindex\docodeindex{#1}{#2}}
+
+% #1 is \doindex or \docodeindex, #2 the index getting redefined (foo),
+% #3 the target index (bar).
+\def\dosynindex#1#2#3{%
+ % Only do \closeout if we haven't already done it, else we'll end up
+ % closing the target index.
+ \expandafter \ifx\csname donesynindex#2\endcsname \undefined
+ % The \closeout helps reduce unnecessary open files; the limit on the
+ % Acorn RISC OS is a mere 16 files.
+ \expandafter\closeout\csname#2indfile\endcsname
+ \expandafter\let\csname\donesynindex#2\endcsname = 1
+ \fi
+ % redefine \fooindfile:
+ \expandafter\let\expandafter\temp\expandafter=\csname#3indfile\endcsname
+ \expandafter\let\csname#2indfile\endcsname=\temp
+ % redefine \fooindex:
+ \expandafter\xdef\csname#2index\endcsname{\noexpand#1{#3}}%
+}
+
+% Define \doindex, the driver for all \fooindex macros.
+% Argument #1 is generated by the calling \fooindex macro,
+% and it is "foo", the name of the index.
+
+% \doindex just uses \parsearg; it calls \doind for the actual work.
+% This is because \doind is more useful to call from other macros.
+
+% There is also \dosubind {index}{topic}{subtopic}
+% which makes an entry in a two-level index such as the operation index.
+
+\def\doindex#1{\edef\indexname{#1}\parsearg\singleindexer}
+\def\singleindexer #1{\doind{\indexname}{#1}}
+
+% like the previous two, but they put @code around the argument.
+\def\docodeindex#1{\edef\indexname{#1}\parsearg\singlecodeindexer}
+\def\singlecodeindexer #1{\doind{\indexname}{\code{#1}}}
+
+\def\indexdummies{%
+\def\ { }%
+% Take care of the plain tex accent commands.
+\def\"{\realbackslash "}%
+\def\`{\realbackslash `}%
+\def\'{\realbackslash '}%
+\def\^{\realbackslash ^}%
+\def\~{\realbackslash ~}%
+\def\={\realbackslash =}%
+\def\b{\realbackslash b}%
+\def\c{\realbackslash c}%
+\def\d{\realbackslash d}%
+\def\u{\realbackslash u}%
+\def\v{\realbackslash v}%
+\def\H{\realbackslash H}%
+% Take care of the plain tex special European modified letters.
+\def\oe{\realbackslash oe}%
+\def\ae{\realbackslash ae}%
+\def\aa{\realbackslash aa}%
+\def\OE{\realbackslash OE}%
+\def\AE{\realbackslash AE}%
+\def\AA{\realbackslash AA}%
+\def\o{\realbackslash o}%
+\def\O{\realbackslash O}%
+\def\l{\realbackslash l}%
+\def\L{\realbackslash L}%
+\def\ss{\realbackslash ss}%
+% Take care of texinfo commands likely to appear in an index entry.
+% (Must be a way to avoid doing expansion at all, and thus not have to
+% laboriously list every single command here.)
+\def\@{@}% will be @@ when we switch to @ as escape char.
+% Need these in case \tex is in effect and \{ is a \delimiter again.
+% But can't use \lbracecmd and \rbracecmd because texindex assumes
+% braces and backslashes are used only as delimiters.
+\let\{ = \mylbrace
+\let\} = \myrbrace
+\def\_{{\realbackslash _}}%
+\def\w{\realbackslash w }%
+\def\bf{\realbackslash bf }%
+%\def\rm{\realbackslash rm }%
+\def\sl{\realbackslash sl }%
+\def\sf{\realbackslash sf}%
+\def\tt{\realbackslash tt}%
+\def\gtr{\realbackslash gtr}%
+\def\less{\realbackslash less}%
+\def\hat{\realbackslash hat}%
+\def\TeX{\realbackslash TeX}%
+\def\dots{\realbackslash dots }%
+\def\result{\realbackslash result}%
+\def\equiv{\realbackslash equiv}%
+\def\expansion{\realbackslash expansion}%
+\def\print{\realbackslash print}%
+\def\error{\realbackslash error}%
+\def\point{\realbackslash point}%
+\def\copyright{\realbackslash copyright}%
+\def\tclose##1{\realbackslash tclose {##1}}%
+\def\code##1{\realbackslash code {##1}}%
+\def\uref##1{\realbackslash uref {##1}}%
+\def\url##1{\realbackslash url {##1}}%
+\def\env##1{\realbackslash env {##1}}%
+\def\command##1{\realbackslash command {##1}}%
+\def\option##1{\realbackslash option {##1}}%
+\def\dotless##1{\realbackslash dotless {##1}}%
+\def\samp##1{\realbackslash samp {##1}}%
+\def\,##1{\realbackslash ,{##1}}%
+\def\t##1{\realbackslash t {##1}}%
+\def\r##1{\realbackslash r {##1}}%
+\def\i##1{\realbackslash i {##1}}%
+\def\b##1{\realbackslash b {##1}}%
+\def\sc##1{\realbackslash sc {##1}}%
+\def\cite##1{\realbackslash cite {##1}}%
+\def\key##1{\realbackslash key {##1}}%
+\def\file##1{\realbackslash file {##1}}%
+\def\var##1{\realbackslash var {##1}}%
+\def\kbd##1{\realbackslash kbd {##1}}%
+\def\dfn##1{\realbackslash dfn {##1}}%
+\def\emph##1{\realbackslash emph {##1}}%
+\def\acronym##1{\realbackslash acronym {##1}}%
+%
+% Handle some cases of @value -- where the variable name does not
+% contain - or _, and the value does not contain any
+% (non-fully-expandable) commands.
+\let\value = \expandablevalue
+%
+\unsepspaces
+% Turn off macro expansion
+\turnoffmacros
+}
+
+% If an index command is used in an @example environment, any spaces
+% therein should become regular spaces in the raw index file, not the
+% expansion of \tie (\\leavevmode \penalty \@M \ ).
+{\obeyspaces
+ \gdef\unsepspaces{\obeyspaces\let =\space}}
+
+% \indexnofonts no-ops all font-change commands.
+% This is used when outputting the strings to sort the index by.
+\def\indexdummyfont#1{#1}
+\def\indexdummytex{TeX}
+\def\indexdummydots{...}
+
+\def\indexnofonts{%
+% Just ignore accents.
+\let\,=\indexdummyfont
+\let\"=\indexdummyfont
+\let\`=\indexdummyfont
+\let\'=\indexdummyfont
+\let\^=\indexdummyfont
+\let\~=\indexdummyfont
+\let\==\indexdummyfont
+\let\b=\indexdummyfont
+\let\c=\indexdummyfont
+\let\d=\indexdummyfont
+\let\u=\indexdummyfont
+\let\v=\indexdummyfont
+\let\H=\indexdummyfont
+\let\dotless=\indexdummyfont
+% Take care of the plain tex special European modified letters.
+\def\oe{oe}%
+\def\ae{ae}%
+\def\aa{aa}%
+\def\OE{OE}%
+\def\AE{AE}%
+\def\AA{AA}%
+\def\o{o}%
+\def\O{O}%
+\def\l{l}%
+\def\L{L}%
+\def\ss{ss}%
+\let\w=\indexdummyfont
+\let\t=\indexdummyfont
+\let\r=\indexdummyfont
+\let\i=\indexdummyfont
+\let\b=\indexdummyfont
+\let\emph=\indexdummyfont
+\let\strong=\indexdummyfont
+\let\cite=\indexdummyfont
+\let\sc=\indexdummyfont
+%Don't no-op \tt, since it isn't a user-level command
+% and is used in the definitions of the active chars like <, >, |...
+%\let\tt=\indexdummyfont
+\let\tclose=\indexdummyfont
+\let\code=\indexdummyfont
+\let\url=\indexdummyfont
+\let\uref=\indexdummyfont
+\let\env=\indexdummyfont
+\let\acronym=\indexdummyfont
+\let\command=\indexdummyfont
+\let\option=\indexdummyfont
+\let\file=\indexdummyfont
+\let\samp=\indexdummyfont
+\let\kbd=\indexdummyfont
+\let\key=\indexdummyfont
+\let\var=\indexdummyfont
+\let\TeX=\indexdummytex
+\let\dots=\indexdummydots
+\def\@{@}%
+}
+
+% To define \realbackslash, we must make \ not be an escape.
+% We must first make another character (@) an escape
+% so we do not become unable to do a definition.
+
+{\catcode`\@=0 \catcode`\\=\other
+ @gdef@realbackslash{\}}
+
+\let\indexbackslash=0 %overridden during \printindex.
+\let\SETmarginindex=\relax % put index entries in margin (undocumented)?
+
+% For \ifx comparisons.
+\def\emptymacro{\empty}
+
+% Most index entries go through here, but \dosubind is the general case.
+%
+\def\doind#1#2{\dosubind{#1}{#2}\empty}
+
+% Workhorse for all \fooindexes.
+% #1 is name of index, #2 is stuff to put there, #3 is subentry --
+% \empty if called from \doind, as we usually are. The main exception
+% is with defuns, which call us directly.
+%
+\def\dosubind#1#2#3{%
+ % Put the index entry in the margin if desired.
+ \ifx\SETmarginindex\relax\else
+ \insert\margin{\hbox{\vrule height8pt depth3pt width0pt #2}}%
+ \fi
+ {%
+ \count255=\lastpenalty
+ {%
+ \indexdummies % Must do this here, since \bf, etc expand at this stage
+ \escapechar=`\\
+ {%
+ \let\folio = 0% We will expand all macros now EXCEPT \folio.
+ \def\rawbackslashxx{\indexbackslash}% \indexbackslash isn't defined now
+ % so it will be output as is; and it will print as backslash.
+ %
+ \def\thirdarg{#3}%
+ %
+ % If third arg is present, precede it with space in sort key.
+ \ifx\thirdarg\emptymacro
+ \let\subentry = \empty
+ \else
+ \def\subentry{ #3}%
+ \fi
+ %
+ % First process the index entry with all font commands turned
+ % off to get the string to sort by.
+ {\indexnofonts \xdef\indexsorttmp{#2\subentry}}%
+ %
+ % Now the real index entry with the fonts.
+ \toks0 = {#2}%
+ %
+ % If the third (subentry) arg is present, add it to the index
+ % line to write.
+ \ifx\thirdarg\emptymacro \else
+ \toks0 = \expandafter{\the\toks0{#3}}%
+ \fi
+ %
+ % Set up the complete index entry, with both the sort key and
+ % the original text, including any font commands. We write
+ % three arguments to \entry to the .?? file (four in the
+ % subentry case), texindex reduces to two when writing the .??s
+ % sorted result.
+ \edef\temp{%
+ \write\csname#1indfile\endcsname{%
+ \realbackslash entry{\indexsorttmp}{\folio}{\the\toks0}}%
+ }%
+ %
+ % If a skip is the last thing on the list now, preserve it
+ % by backing up by \lastskip, doing the \write, then inserting
+ % the skip again. Otherwise, the whatsit generated by the
+ % \write will make \lastskip zero. The result is that sequences
+ % like this:
+ % @end defun
+ % @tindex whatever
+ % @defun ...
+ % will have extra space inserted, because the \medbreak in the
+ % start of the @defun won't see the skip inserted by the @end of
+ % the previous defun.
+ %
+ % But don't do any of this if we're not in vertical mode. We
+ % don't want to do a \vskip and prematurely end a paragraph.
+ %
+ % Avoid page breaks due to these extra skips, too.
+ %
+ \iflinks
+ \ifvmode
+ \skip0 = \lastskip
+ \ifdim\lastskip = 0pt \else \nobreak\vskip-\lastskip \fi
+ \fi
+ %
+ \temp % do the write
+ %
+ %
+ \ifvmode \ifdim\skip0 = 0pt \else \nobreak\vskip\skip0 \fi \fi
+ \fi
+ }%
+ }%
+ \penalty\count255
+ }%
+}
+
+% The index entry written in the file actually looks like
+% \entry {sortstring}{page}{topic}
+% or
+% \entry {sortstring}{page}{topic}{subtopic}
+% The texindex program reads in these files and writes files
+% containing these kinds of lines:
+% \initial {c}
+% before the first topic whose initial is c
+% \entry {topic}{pagelist}
+% for a topic that is used without subtopics
+% \primary {topic}
+% for the beginning of a topic that is used with subtopics
+% \secondary {subtopic}{pagelist}
+% for each subtopic.
+
+% Define the user-accessible indexing commands
+% @findex, @vindex, @kindex, @cindex.
+
+\def\findex {\fnindex}
+\def\kindex {\kyindex}
+\def\cindex {\cpindex}
+\def\vindex {\vrindex}
+\def\tindex {\tpindex}
+\def\pindex {\pgindex}
+
+\def\cindexsub {\begingroup\obeylines\cindexsub}
+{\obeylines %
+\gdef\cindexsub "#1" #2^^M{\endgroup %
+\dosubind{cp}{#2}{#1}}}
+
+% Define the macros used in formatting output of the sorted index material.
+
+% @printindex causes a particular index (the ??s file) to get printed.
+% It does not print any chapter heading (usually an @unnumbered).
+%
+\def\printindex{\parsearg\doprintindex}
+\def\doprintindex#1{\begingroup
+ \dobreak \chapheadingskip{10000}%
+ %
+ \smallfonts \rm
+ \tolerance = 9500
+ \indexbreaks
+ %
+ % See if the index file exists and is nonempty.
+ % Change catcode of @ here so that if the index file contains
+ % \initial {@}
+ % as its first line, TeX doesn't complain about mismatched braces
+ % (because it thinks @} is a control sequence).
+ \catcode`\@ = 11
+ \openin 1 \jobname.#1s
+ \ifeof 1
+ % \enddoublecolumns gets confused if there is no text in the index,
+ % and it loses the chapter title and the aux file entries for the
+ % index. The easiest way to prevent this problem is to make sure
+ % there is some text.
+ \putwordIndexNonexistent
+ \else
+ %
+ % If the index file exists but is empty, then \openin leaves \ifeof
+ % false. We have to make TeX try to read something from the file, so
+ % it can discover if there is anything in it.
+ \read 1 to \temp
+ \ifeof 1
+ \putwordIndexIsEmpty
+ \else
+ % Index files are almost Texinfo source, but we use \ as the escape
+ % character. It would be better to use @, but that's too big a change
+ % to make right now.
+ \def\indexbackslash{\rawbackslashxx}%
+ \catcode`\\ = 0
+ \escapechar = `\\
+ \begindoublecolumns
+ \input \jobname.#1s
+ \enddoublecolumns
+ \fi
+ \fi
+ \closein 1
+\endgroup}
+
+% These macros are used by the sorted index file itself.
+% Change them to control the appearance of the index.
+
+\def\initial#1{{%
+ % Some minor font changes for the special characters.
+ \let\tentt=\sectt \let\tt=\sectt \let\sf=\sectt
+ %
+ % Remove any glue we may have, we'll be inserting our own.
+ \removelastskip
+ %
+ % We like breaks before the index initials, so insert a bonus.
+ \penalty -300
+ %
+ % Typeset the initial. Making this add up to a whole number of
+ % baselineskips increases the chance of the dots lining up from column
+ % to column. It still won't often be perfect, because of the stretch
+ % we need before each entry, but it's better.
+ %
+ % No shrink because it confuses \balancecolumns.
+ \vskip 1.67\baselineskip plus .5\baselineskip
+ \leftline{\secbf #1}%
+ \vskip .33\baselineskip plus .1\baselineskip
+ %
+ % Do our best not to break after the initial.
+ \nobreak
+}}
+
+% This typesets a paragraph consisting of #1, dot leaders, and then #2
+% flush to the right margin. It is used for index and table of contents
+% entries. The paragraph is indented by \leftskip.
+%
+\def\entry#1#2{\begingroup
+ %
+ % Start a new paragraph if necessary, so our assignments below can't
+ % affect previous text.
+ \par
+ %
+ % Do not fill out the last line with white space.
+ \parfillskip = 0in
+ %
+ % No extra space above this paragraph.
+ \parskip = 0in
+ %
+ % Do not prefer a separate line ending with a hyphen to fewer lines.
+ \finalhyphendemerits = 0
+ %
+ % \hangindent is only relevant when the entry text and page number
+ % don't both fit on one line. In that case, bob suggests starting the
+ % dots pretty far over on the line. Unfortunately, a large
+ % indentation looks wrong when the entry text itself is broken across
+ % lines. So we use a small indentation and put up with long leaders.
+ %
+ % \hangafter is reset to 1 (which is the value we want) at the start
+ % of each paragraph, so we need not do anything with that.
+ \hangindent = 2em
+ %
+ % When the entry text needs to be broken, just fill out the first line
+ % with blank space.
+ \rightskip = 0pt plus1fil
+ %
+ % A bit of stretch before each entry for the benefit of balancing columns.
+ \vskip 0pt plus1pt
+ %
+ % Start a ``paragraph'' for the index entry so the line breaking
+ % parameters we've set above will have an effect.
+ \noindent
+ %
+ % Insert the text of the index entry. TeX will do line-breaking on it.
+ #1%
+ % The following is kludged to not output a line of dots in the index if
+ % there are no page numbers. The next person who breaks this will be
+ % cursed by a Unix daemon.
+ \def\tempa{{\rm }}%
+ \def\tempb{#2}%
+ \edef\tempc{\tempa}%
+ \edef\tempd{\tempb}%
+ \ifx\tempc\tempd\ \else%
+ %
+ % If we must, put the page number on a line of its own, and fill out
+ % this line with blank space. (The \hfil is overwhelmed with the
+ % fill leaders glue in \indexdotfill if the page number does fit.)
+ \hfil\penalty50
+ \null\nobreak\indexdotfill % Have leaders before the page number.
+ %
+ % The `\ ' here is removed by the implicit \unskip that TeX does as
+ % part of (the primitive) \par. Without it, a spurious underfull
+ % \hbox ensues.
+ \ifpdf
+ \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph.
+ \else
+ \ #2% The page number ends the paragraph.
+ \fi
+ \fi%
+ \par
+\endgroup}
+
+% Like \dotfill except takes at least 1 em.
+\def\indexdotfill{\cleaders
+ \hbox{$\mathsurround=0pt \mkern1.5mu ${\it .}$ \mkern1.5mu$}\hskip 1em plus 1fill}
+
+\def\primary #1{\line{#1\hfil}}
+
+\newskip\secondaryindent \secondaryindent=0.5cm
+\def\secondary#1#2{{%
+ \parfillskip=0in
+ \parskip=0in
+ \hangindent=1in
+ \hangafter=1
+ \noindent\hskip\secondaryindent\hbox{#1}\indexdotfill
+ \ifpdf
+ \pdfgettoks#2.\ \the\toksA % The page number ends the paragraph.
+ \else
+ #2
+ \fi
+ \par
+}}
+
+% Define two-column mode, which we use to typeset indexes.
+% Adapted from the TeXbook, page 416, which is to say,
+% the manmac.tex format used to print the TeXbook itself.
+\catcode`\@=11
+
+\newbox\partialpage
+\newdimen\doublecolumnhsize
+
+\def\begindoublecolumns{\begingroup % ended by \enddoublecolumns
+ % Grab any single-column material above us.
+ \output = {%
+ %
+ % Here is a possibility not foreseen in manmac: if we accumulate a
+ % whole lot of material, we might end up calling this \output
+ % routine twice in a row (see the doublecol-lose test, which is
+ % essentially a couple of indexes with @setchapternewpage off). In
+ % that case we just ship out what is in \partialpage with the normal
+ % output routine. Generally, \partialpage will be empty when this
+ % runs and this will be a no-op. See the indexspread.tex test case.
+ \ifvoid\partialpage \else
+ \onepageout{\pagecontents\partialpage}%
+ \fi
+ %
+ \global\setbox\partialpage = \vbox{%
+ % Unvbox the main output page.
+ \unvbox\PAGE
+ \kern-\topskip \kern\baselineskip
+ }%
+ }%
+ \eject % run that output routine to set \partialpage
+ %
+ % Use the double-column output routine for subsequent pages.
+ \output = {\doublecolumnout}%
+ %
+ % Change the page size parameters. We could do this once outside this
+ % routine, in each of @smallbook, @afourpaper, and the default 8.5x11
+ % format, but then we repeat the same computation. Repeating a couple
+ % of assignments once per index is clearly meaningless for the
+ % execution time, so we may as well do it in one place.
+ %
+ % First we halve the line length, less a little for the gutter between
+ % the columns. We compute the gutter based on the line length, so it
+ % changes automatically with the paper format. The magic constant
+ % below is chosen so that the gutter has the same value (well, +-<1pt)
+ % as it did when we hard-coded it.
+ %
+ % We put the result in a separate register, \doublecolumhsize, so we
+ % can restore it in \pagesofar, after \hsize itself has (potentially)
+ % been clobbered.
+ %
+ \doublecolumnhsize = \hsize
+ \advance\doublecolumnhsize by -.04154\hsize
+ \divide\doublecolumnhsize by 2
+ \hsize = \doublecolumnhsize
+ %
+ % Double the \vsize as well. (We don't need a separate register here,
+ % since nobody clobbers \vsize.)
+ \vsize = 2\vsize
+}
+
+% The double-column output routine for all double-column pages except
+% the last.
+%
+\def\doublecolumnout{%
+ \splittopskip=\topskip \splitmaxdepth=\maxdepth
+ % Get the available space for the double columns -- the normal
+ % (undoubled) page height minus any material left over from the
+ % previous page.
+ \dimen@ = \vsize
+ \divide\dimen@ by 2
+ \advance\dimen@ by -\ht\partialpage
+ %
+ % box0 will be the left-hand column, box2 the right.
+ \setbox0=\vsplit255 to\dimen@ \setbox2=\vsplit255 to\dimen@
+ \onepageout\pagesofar
+ \unvbox255
+ \penalty\outputpenalty
+}
+%
+% Re-output the contents of the output page -- any previous material,
+% followed by the two boxes we just split, in box0 and box2.
+\def\pagesofar{%
+ \unvbox\partialpage
+ %
+ \hsize = \doublecolumnhsize
+ \wd0=\hsize \wd2=\hsize
+ \hbox to\pagewidth{\box0\hfil\box2}%
+}
+%
+% All done with double columns.
+\def\enddoublecolumns{%
+ \output = {%
+ % Split the last of the double-column material. Leave it on the
+ % current page, no automatic page break.
+ \balancecolumns
+ %
+ % If we end up splitting too much material for the current page,
+ % though, there will be another page break right after this \output
+ % invocation ends. Having called \balancecolumns once, we do not
+ % want to call it again. Therefore, reset \output to its normal
+ % definition right away. (We hope \balancecolumns will never be
+ % called on to balance too much material, but if it is, this makes
+ % the output somewhat more palatable.)
+ \global\output = {\onepageout{\pagecontents\PAGE}}%
+ }%
+ \eject
+ \endgroup % started in \begindoublecolumns
+ %
+ % \pagegoal was set to the doubled \vsize above, since we restarted
+ % the current page. We're now back to normal single-column
+ % typesetting, so reset \pagegoal to the normal \vsize (after the
+ % \endgroup where \vsize got restored).
+ \pagegoal = \vsize
+}
+%
+% Called at the end of the double column material.
+\def\balancecolumns{%
+ \setbox0 = \vbox{\unvbox255}% like \box255 but more efficient, see p.120.
+ \dimen@ = \ht0
+ \advance\dimen@ by \topskip
+ \advance\dimen@ by-\baselineskip
+ \divide\dimen@ by 2 % target to split to
+ %debug\message{final 2-column material height=\the\ht0, target=\the\dimen@.}%
+ \splittopskip = \topskip
+ % Loop until we get a decent breakpoint.
+ {%
+ \vbadness = 10000
+ \loop
+ \global\setbox3 = \copy0
+ \global\setbox1 = \vsplit3 to \dimen@
+ \ifdim\ht3>\dimen@
+ \global\advance\dimen@ by 1pt
+ \repeat
+ }%
+ %debug\message{split to \the\dimen@, column heights: \the\ht1, \the\ht3.}%
+ \setbox0=\vbox to\dimen@{\unvbox1}%
+ \setbox2=\vbox to\dimen@{\unvbox3}%
+ %
+ \pagesofar
+}
+\catcode`\@ = \other
+
+
+\message{sectioning,}
+% Chapters, sections, etc.
+
+\newcount\chapno
+\newcount\secno \secno=0
+\newcount\subsecno \subsecno=0
+\newcount\subsubsecno \subsubsecno=0
+
+% This counter is funny since it counts through charcodes of letters A, B, ...
+\newcount\appendixno \appendixno = `\@
+% \def\appendixletter{\char\the\appendixno}
+% We do the following for the sake of pdftex, which needs the actual
+% letter in the expansion, not just typeset.
+\def\appendixletter{%
+ \ifnum\appendixno=`A A%
+ \else\ifnum\appendixno=`B B%
+ \else\ifnum\appendixno=`C C%
+ \else\ifnum\appendixno=`D D%
+ \else\ifnum\appendixno=`E E%
+ \else\ifnum\appendixno=`F F%
+ \else\ifnum\appendixno=`G G%
+ \else\ifnum\appendixno=`H H%
+ \else\ifnum\appendixno=`I I%
+ \else\ifnum\appendixno=`J J%
+ \else\ifnum\appendixno=`K K%
+ \else\ifnum\appendixno=`L L%
+ \else\ifnum\appendixno=`M M%
+ \else\ifnum\appendixno=`N N%
+ \else\ifnum\appendixno=`O O%
+ \else\ifnum\appendixno=`P P%
+ \else\ifnum\appendixno=`Q Q%
+ \else\ifnum\appendixno=`R R%
+ \else\ifnum\appendixno=`S S%
+ \else\ifnum\appendixno=`T T%
+ \else\ifnum\appendixno=`U U%
+ \else\ifnum\appendixno=`V V%
+ \else\ifnum\appendixno=`W W%
+ \else\ifnum\appendixno=`X X%
+ \else\ifnum\appendixno=`Y Y%
+ \else\ifnum\appendixno=`Z Z%
+ % The \the is necessary, despite appearances, because \appendixletter is
+ % expanded while writing the .toc file. \char\appendixno is not
+ % expandable, thus it is written literally, thus all appendixes come out
+ % with the same letter (or @) in the toc without it.
+ \else\char\the\appendixno
+ \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi
+ \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
+
+% Each @chapter defines this as the name of the chapter.
+% page headings and footings can use it. @section does likewise.
+\def\thischapter{}
+\def\thissection{}
+
+\newcount\absseclevel % used to calculate proper heading level
+\newcount\secbase\secbase=0 % @raise/lowersections modify this count
+
+% @raisesections: treat @section as chapter, @subsection as section, etc.
+\def\raisesections{\global\advance\secbase by -1}
+\let\up=\raisesections % original BFox name
+
+% @lowersections: treat @chapter as section, @section as subsection, etc.
+\def\lowersections{\global\advance\secbase by 1}
+\let\down=\lowersections % original BFox name
+
+% Choose a numbered-heading macro
+% #1 is heading level if unmodified by @raisesections or @lowersections
+% #2 is text for heading
+\def\numhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
+\ifcase\absseclevel
+ \chapterzzz{#2}
+\or
+ \seczzz{#2}
+\or
+ \numberedsubseczzz{#2}
+\or
+ \numberedsubsubseczzz{#2}
+\else
+ \ifnum \absseclevel<0
+ \chapterzzz{#2}
+ \else
+ \numberedsubsubseczzz{#2}
+ \fi
+\fi
+}
+
+% like \numhead, but chooses appendix heading levels
+\def\apphead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
+\ifcase\absseclevel
+ \appendixzzz{#2}
+\or
+ \appendixsectionzzz{#2}
+\or
+ \appendixsubseczzz{#2}
+\or
+ \appendixsubsubseczzz{#2}
+\else
+ \ifnum \absseclevel<0
+ \appendixzzz{#2}
+ \else
+ \appendixsubsubseczzz{#2}
+ \fi
+\fi
+}
+
+% like \numhead, but chooses numberless heading levels
+\def\unnmhead#1#2{\absseclevel=\secbase\advance\absseclevel by #1
+\ifcase\absseclevel
+ \unnumberedzzz{#2}
+\or
+ \unnumberedseczzz{#2}
+\or
+ \unnumberedsubseczzz{#2}
+\or
+ \unnumberedsubsubseczzz{#2}
+\else
+ \ifnum \absseclevel<0
+ \unnumberedzzz{#2}
+ \else
+ \unnumberedsubsubseczzz{#2}
+ \fi
+\fi
+}
+
+% @chapter, @appendix, @unnumbered.
+\def\thischaptername{No Chapter Title}
+\outer\def\chapter{\parsearg\chapteryyy}
+\def\chapteryyy #1{\numhead0{#1}} % normally numhead0 calls chapterzzz
+\def\chapterzzz #1{%
+\secno=0 \subsecno=0 \subsubsecno=0
+\global\advance \chapno by 1 \message{\putwordChapter\space \the\chapno}%
+\chapmacro {#1}{\the\chapno}%
+\gdef\thissection{#1}%
+\gdef\thischaptername{#1}%
+% We don't substitute the actual chapter name into \thischapter
+% because we don't want its macros evaluated now.
+\xdef\thischapter{\putwordChapter{} \the\chapno: \noexpand\thischaptername}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash chapentry{\the\toks0}%
+ {\the\chapno}}}%
+\temp
+\donoderef
+\global\let\section = \numberedsec
+\global\let\subsection = \numberedsubsec
+\global\let\subsubsection = \numberedsubsubsec
+}
+
+\outer\def\appendix{\parsearg\appendixyyy}
+\def\appendixyyy #1{\apphead0{#1}} % normally apphead0 calls appendixzzz
+\def\appendixzzz #1{%
+\secno=0 \subsecno=0 \subsubsecno=0
+\global\advance \appendixno by 1
+\message{\putwordAppendix\space \appendixletter}%
+\chapmacro {#1}{\putwordAppendix{} \appendixletter}%
+\gdef\thissection{#1}%
+\gdef\thischaptername{#1}%
+\xdef\thischapter{\putwordAppendix{} \appendixletter: \noexpand\thischaptername}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash chapentry{\the\toks0}%
+ {\putwordAppendix{} \appendixletter}}}%
+\temp
+\appendixnoderef
+\global\let\section = \appendixsec
+\global\let\subsection = \appendixsubsec
+\global\let\subsubsection = \appendixsubsubsec
+}
+
+% @centerchap is like @unnumbered, but the heading is centered.
+\outer\def\centerchap{\parsearg\centerchapyyy}
+\def\centerchapyyy #1{{\let\unnumbchapmacro=\centerchapmacro \unnumberedyyy{#1}}}
+
+% @top is like @unnumbered.
+\outer\def\top{\parsearg\unnumberedyyy}
+
+\outer\def\unnumbered{\parsearg\unnumberedyyy}
+\def\unnumberedyyy #1{\unnmhead0{#1}} % normally unnmhead0 calls unnumberedzzz
+\def\unnumberedzzz #1{%
+\secno=0 \subsecno=0 \subsubsecno=0
+%
+% This used to be simply \message{#1}, but TeX fully expands the
+% argument to \message. Therefore, if #1 contained @-commands, TeX
+% expanded them. For example, in `@unnumbered The @cite{Book}', TeX
+% expanded @cite (which turns out to cause errors because \cite is meant
+% to be executed, not expanded).
+%
+% Anyway, we don't want the fully-expanded definition of @cite to appear
+% as a result of the \message, we just want `@cite' itself. We use
+% \the<toks register> to achieve this: TeX expands \the<toks> only once,
+% simply yielding the contents of <toks register>. (We also do this for
+% the toc entries.)
+\toks0 = {#1}\message{(\the\toks0)}%
+%
+\unnumbchapmacro {#1}%
+\gdef\thischapter{#1}\gdef\thissection{#1}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash unnumbchapentry{\the\toks0}}}%
+\temp
+\unnumbnoderef
+\global\let\section = \unnumberedsec
+\global\let\subsection = \unnumberedsubsec
+\global\let\subsubsection = \unnumberedsubsubsec
+}
+
+% Sections.
+\outer\def\numberedsec{\parsearg\secyyy}
+\def\secyyy #1{\numhead1{#1}} % normally calls seczzz
+\def\seczzz #1{%
+\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
+\gdef\thissection{#1}\secheading {#1}{\the\chapno}{\the\secno}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash secentry{\the\toks0}%
+ {\the\chapno}{\the\secno}}}%
+\temp
+\donoderef
+\nobreak
+}
+
+\outer\def\appendixsection{\parsearg\appendixsecyyy}
+\outer\def\appendixsec{\parsearg\appendixsecyyy}
+\def\appendixsecyyy #1{\apphead1{#1}} % normally calls appendixsectionzzz
+\def\appendixsectionzzz #1{%
+\subsecno=0 \subsubsecno=0 \global\advance \secno by 1 %
+\gdef\thissection{#1}\secheading {#1}{\appendixletter}{\the\secno}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash secentry{\the\toks0}%
+ {\appendixletter}{\the\secno}}}%
+\temp
+\appendixnoderef
+\nobreak
+}
+
+\outer\def\unnumberedsec{\parsearg\unnumberedsecyyy}
+\def\unnumberedsecyyy #1{\unnmhead1{#1}} % normally calls unnumberedseczzz
+\def\unnumberedseczzz #1{%
+\plainsecheading {#1}\gdef\thissection{#1}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash unnumbsecentry{\the\toks0}}}%
+\temp
+\unnumbnoderef
+\nobreak
+}
+
+% Subsections.
+\outer\def\numberedsubsec{\parsearg\numberedsubsecyyy}
+\def\numberedsubsecyyy #1{\numhead2{#1}} % normally calls numberedsubseczzz
+\def\numberedsubseczzz #1{%
+\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
+\subsecheading {#1}{\the\chapno}{\the\secno}{\the\subsecno}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash subsecentry{\the\toks0}%
+ {\the\chapno}{\the\secno}{\the\subsecno}}}%
+\temp
+\donoderef
+\nobreak
+}
+
+\outer\def\appendixsubsec{\parsearg\appendixsubsecyyy}
+\def\appendixsubsecyyy #1{\apphead2{#1}} % normally calls appendixsubseczzz
+\def\appendixsubseczzz #1{%
+\gdef\thissection{#1}\subsubsecno=0 \global\advance \subsecno by 1 %
+\subsecheading {#1}{\appendixletter}{\the\secno}{\the\subsecno}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash subsecentry{\the\toks0}%
+ {\appendixletter}{\the\secno}{\the\subsecno}}}%
+\temp
+\appendixnoderef
+\nobreak
+}
+
+\outer\def\unnumberedsubsec{\parsearg\unnumberedsubsecyyy}
+\def\unnumberedsubsecyyy #1{\unnmhead2{#1}} %normally calls unnumberedsubseczzz
+\def\unnumberedsubseczzz #1{%
+\plainsubsecheading {#1}\gdef\thissection{#1}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash unnumbsubsecentry%
+ {\the\toks0}}}%
+\temp
+\unnumbnoderef
+\nobreak
+}
+
+% Subsubsections.
+\outer\def\numberedsubsubsec{\parsearg\numberedsubsubsecyyy}
+\def\numberedsubsubsecyyy #1{\numhead3{#1}} % normally numberedsubsubseczzz
+\def\numberedsubsubseczzz #1{%
+\gdef\thissection{#1}\global\advance \subsubsecno by 1 %
+\subsubsecheading {#1}
+ {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash subsubsecentry{\the\toks0}%
+ {\the\chapno}{\the\secno}{\the\subsecno}{\the\subsubsecno}}}%
+\temp
+\donoderef
+\nobreak
+}
+
+\outer\def\appendixsubsubsec{\parsearg\appendixsubsubsecyyy}
+\def\appendixsubsubsecyyy #1{\apphead3{#1}} % normally appendixsubsubseczzz
+\def\appendixsubsubseczzz #1{%
+\gdef\thissection{#1}\global\advance \subsubsecno by 1 %
+\subsubsecheading {#1}
+ {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash subsubsecentry{\the\toks0}%
+ {\appendixletter}{\the\secno}{\the\subsecno}{\the\subsubsecno}}}%
+\temp
+\appendixnoderef
+\nobreak
+}
+
+\outer\def\unnumberedsubsubsec{\parsearg\unnumberedsubsubsecyyy}
+\def\unnumberedsubsubsecyyy #1{\unnmhead3{#1}} %normally unnumberedsubsubseczzz
+\def\unnumberedsubsubseczzz #1{%
+\plainsubsubsecheading {#1}\gdef\thissection{#1}%
+\toks0 = {#1}%
+\edef\temp{\noexpand\writetocentry{\realbackslash unnumbsubsubsecentry%
+ {\the\toks0}}}%
+\temp
+\unnumbnoderef
+\nobreak
+}
+
+% These are variants which are not "outer", so they can appear in @ifinfo.
+% Actually, they should now be obsolete; ordinary section commands should work.
+\def\infotop{\parsearg\unnumberedzzz}
+\def\infounnumbered{\parsearg\unnumberedzzz}
+\def\infounnumberedsec{\parsearg\unnumberedseczzz}
+\def\infounnumberedsubsec{\parsearg\unnumberedsubseczzz}
+\def\infounnumberedsubsubsec{\parsearg\unnumberedsubsubseczzz}
+
+\def\infoappendix{\parsearg\appendixzzz}
+\def\infoappendixsec{\parsearg\appendixseczzz}
+\def\infoappendixsubsec{\parsearg\appendixsubseczzz}
+\def\infoappendixsubsubsec{\parsearg\appendixsubsubseczzz}
+
+\def\infochapter{\parsearg\chapterzzz}
+\def\infosection{\parsearg\sectionzzz}
+\def\infosubsection{\parsearg\subsectionzzz}
+\def\infosubsubsection{\parsearg\subsubsectionzzz}
+
+% These macros control what the section commands do, according
+% to what kind of chapter we are in (ordinary, appendix, or unnumbered).
+% Define them by default for a numbered chapter.
+\global\let\section = \numberedsec
+\global\let\subsection = \numberedsubsec
+\global\let\subsubsection = \numberedsubsubsec
+
+% Define @majorheading, @heading and @subheading
+
+% NOTE on use of \vbox for chapter headings, section headings, and such:
+% 1) We use \vbox rather than the earlier \line to permit
+% overlong headings to fold.
+% 2) \hyphenpenalty is set to 10000 because hyphenation in a
+% heading is obnoxious; this forbids it.
+% 3) Likewise, headings look best if no \parindent is used, and
+% if justification is not attempted. Hence \raggedright.
+
+
+\def\majorheading{\parsearg\majorheadingzzz}
+\def\majorheadingzzz #1{%
+{\advance\chapheadingskip by 10pt \chapbreak }%
+{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt\raggedright
+ \rm #1\hfill}}\bigskip \par\penalty 200}
+
+\def\chapheading{\parsearg\chapheadingzzz}
+\def\chapheadingzzz #1{\chapbreak %
+{\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt\raggedright
+ \rm #1\hfill}}\bigskip \par\penalty 200}
+
+% @heading, @subheading, @subsubheading.
+\def\heading{\parsearg\plainsecheading}
+\def\subheading{\parsearg\plainsubsecheading}
+\def\subsubheading{\parsearg\plainsubsubsecheading}
+
+% These macros generate a chapter, section, etc. heading only
+% (including whitespace, linebreaking, etc. around it),
+% given all the information in convenient, parsed form.
+
+%%% Args are the skip and penalty (usually negative)
+\def\dobreak#1#2{\par\ifdim\lastskip<#1\removelastskip\penalty#2\vskip#1\fi}
+
+\def\setchapterstyle #1 {\csname CHAPF#1\endcsname}
+
+%%% Define plain chapter starts, and page on/off switching for it
+% Parameter controlling skip before chapter headings (if needed)
+
+\newskip\chapheadingskip
+
+\def\chapbreak{\dobreak \chapheadingskip {-4000}}
+\def\chappager{\par\vfill\supereject}
+\def\chapoddpage{\chappager \ifodd\pageno \else \hbox to 0pt{} \chappager\fi}
+
+\def\setchapternewpage #1 {\csname CHAPPAG#1\endcsname}
+
+\def\CHAPPAGoff{%
+\global\let\contentsalignmacro = \chappager
+\global\let\pchapsepmacro=\chapbreak
+\global\let\pagealignmacro=\chappager}
+
+\def\CHAPPAGon{%
+\global\let\contentsalignmacro = \chappager
+\global\let\pchapsepmacro=\chappager
+\global\let\pagealignmacro=\chappager
+\global\def\HEADINGSon{\HEADINGSsingle}}
+
+\def\CHAPPAGodd{
+\global\let\contentsalignmacro = \chapoddpage
+\global\let\pchapsepmacro=\chapoddpage
+\global\let\pagealignmacro=\chapoddpage
+\global\def\HEADINGSon{\HEADINGSdouble}}
+
+\CHAPPAGon
+
+\def\CHAPFplain{
+\global\let\chapmacro=\chfplain
+\global\let\unnumbchapmacro=\unnchfplain
+\global\let\centerchapmacro=\centerchfplain}
+
+% Plain chapter opening.
+% #1 is the text, #2 the chapter number or empty if unnumbered.
+\def\chfplain#1#2{%
+ \pchapsepmacro
+ {%
+ \chapfonts \rm
+ \def\chapnum{#2}%
+ \setbox0 = \hbox{#2\ifx\chapnum\empty\else\enspace\fi}%
+ \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
+ \hangindent = \wd0 \centerparametersmaybe
+ \unhbox0 #1\par}%
+ }%
+ \nobreak\bigskip % no page break after a chapter title
+ \nobreak
+}
+
+% Plain opening for unnumbered.
+\def\unnchfplain#1{\chfplain{#1}{}}
+
+% @centerchap -- centered and unnumbered.
+\let\centerparametersmaybe = \relax
+\def\centerchfplain#1{{%
+ \def\centerparametersmaybe{%
+ \advance\rightskip by 3\rightskip
+ \leftskip = \rightskip
+ \parfillskip = 0pt
+ }%
+ \chfplain{#1}{}%
+}}
+
+\CHAPFplain % The default
+
+\def\unnchfopen #1{%
+\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt\raggedright
+ \rm #1\hfill}}\bigskip \par\nobreak
+}
+
+\def\chfopen #1#2{\chapoddpage {\chapfonts
+\vbox to 3in{\vfil \hbox to\hsize{\hfil #2} \hbox to\hsize{\hfil #1} \vfil}}%
+\par\penalty 5000 %
+}
+
+\def\centerchfopen #1{%
+\chapoddpage {\chapfonts \vbox{\hyphenpenalty=10000\tolerance=5000
+ \parindent=0pt
+ \hfill {\rm #1}\hfill}}\bigskip \par\nobreak
+}
+
+\def\CHAPFopen{
+\global\let\chapmacro=\chfopen
+\global\let\unnumbchapmacro=\unnchfopen
+\global\let\centerchapmacro=\centerchfopen}
+
+
+% Section titles.
+\newskip\secheadingskip
+\def\secheadingbreak{\dobreak \secheadingskip {-1000}}
+\def\secheading#1#2#3{\sectionheading{sec}{#2.#3}{#1}}
+\def\plainsecheading#1{\sectionheading{sec}{}{#1}}
+
+% Subsection titles.
+\newskip \subsecheadingskip
+\def\subsecheadingbreak{\dobreak \subsecheadingskip {-500}}
+\def\subsecheading#1#2#3#4{\sectionheading{subsec}{#2.#3.#4}{#1}}
+\def\plainsubsecheading#1{\sectionheading{subsec}{}{#1}}
+
+% Subsubsection titles.
+\let\subsubsecheadingskip = \subsecheadingskip
+\let\subsubsecheadingbreak = \subsecheadingbreak
+\def\subsubsecheading#1#2#3#4#5{\sectionheading{subsubsec}{#2.#3.#4.#5}{#1}}
+\def\plainsubsubsecheading#1{\sectionheading{subsubsec}{}{#1}}
+
+
+% Print any size section title.
+%
+% #1 is the section type (sec/subsec/subsubsec), #2 is the section
+% number (maybe empty), #3 the text.
+\def\sectionheading#1#2#3{%
+ {%
+ \expandafter\advance\csname #1headingskip\endcsname by \parskip
+ \csname #1headingbreak\endcsname
+ }%
+ {%
+ % Switch to the right set of fonts.
+ \csname #1fonts\endcsname \rm
+ %
+ % Only insert the separating space if we have a section number.
+ \def\secnum{#2}%
+ \setbox0 = \hbox{#2\ifx\secnum\empty\else\enspace\fi}%
+ %
+ \vbox{\hyphenpenalty=10000 \tolerance=5000 \parindent=0pt \raggedright
+ \hangindent = \wd0 % zero if no section number
+ \unhbox0 #3}%
+ }%
+ \ifdim\parskip<10pt \nobreak\kern10pt\nobreak\kern-\parskip\fi \nobreak
+}
+
+
+\message{toc,}
+% Table of contents.
+\newwrite\tocfile
+
+% Write an entry to the toc file, opening it if necessary.
+% Called from @chapter, etc. We supply {\folio} at the end of the
+% argument, which will end up as the last argument to the \...entry macro.
+%
+% We open the .toc file here instead of at @setfilename or any other
+% given time so that @contents can be put in the document anywhere.
+%
+\newif\iftocfileopened
+\def\writetocentry#1{%
+ \iftocfileopened\else
+ \immediate\openout\tocfile = \jobname.toc
+ \global\tocfileopenedtrue
+ \fi
+ \iflinks \write\tocfile{#1{\folio}}\fi
+}
+
+\newskip\contentsrightmargin \contentsrightmargin=1in
+\newcount\savepageno
+\newcount\lastnegativepageno \lastnegativepageno = -1
+
+% Finish up the main text and prepare to read what we've written
+% to \tocfile.
+%
+\def\startcontents#1{%
+ % If @setchapternewpage on, and @headings double, the contents should
+ % start on an odd page, unlike chapters. Thus, we maintain
+ % \contentsalignmacro in parallel with \pagealignmacro.
+ % From: Torbjorn Granlund <tege@matematik.su.se>
+ \contentsalignmacro
+ \immediate\closeout\tocfile
+ %
+ % Don't need to put `Contents' or `Short Contents' in the headline.
+ % It is abundantly clear what they are.
+ \unnumbchapmacro{#1}\def\thischapter{}%
+ \savepageno = \pageno
+ \begingroup % Set up to handle contents files properly.
+ \catcode`\\=0 \catcode`\{=1 \catcode`\}=2 \catcode`\@=11
+ % We can't do this, because then an actual ^ in a section
+ % title fails, e.g., @chapter ^ -- exponentiation. --karl, 9jul97.
+ %\catcode`\^=7 % to see ^^e4 as \"a etc. juha@piuha.ydi.vtt.fi
+ \raggedbottom % Worry more about breakpoints than the bottom.
+ \advance\hsize by -\contentsrightmargin % Don't use the full line length.
+ %
+ % Roman numerals for page numbers.
+ \ifnum \pageno>0 \pageno = \lastnegativepageno \fi
+}
+
+
+% Normal (long) toc.
+\def\contents{%
+ \startcontents{\putwordTOC}%
+ \openin 1 \jobname.toc
+ \ifeof 1 \else
+ \closein 1
+ \input \jobname.toc
+ \fi
+ \vfill \eject
+ \contentsalignmacro % in case @setchapternewpage odd is in effect
+ \pdfmakeoutlines
+ \endgroup
+ \lastnegativepageno = \pageno
+ \pageno = \savepageno
+}
+
+% And just the chapters.
+\def\summarycontents{%
+ \startcontents{\putwordShortTOC}%
+ %
+ \let\chapentry = \shortchapentry
+ \let\unnumbchapentry = \shortunnumberedentry
+ % We want a true roman here for the page numbers.
+ \secfonts
+ \let\rm=\shortcontrm \let\bf=\shortcontbf \let\sl=\shortcontsl
+ \rm
+ \hyphenpenalty = 10000
+ \advance\baselineskip by 1pt % Open it up a little.
+ \def\secentry ##1##2##3##4{}
+ \def\unnumbsecentry ##1##2{}
+ \def\subsecentry ##1##2##3##4##5{}
+ \def\unnumbsubsecentry ##1##2{}
+ \def\subsubsecentry ##1##2##3##4##5##6{}
+ \def\unnumbsubsubsecentry ##1##2{}
+ \openin 1 \jobname.toc
+ \ifeof 1 \else
+ \closein 1
+ \input \jobname.toc
+ \fi
+ \vfill \eject
+ \contentsalignmacro % in case @setchapternewpage odd is in effect
+ \endgroup
+ \lastnegativepageno = \pageno
+ \pageno = \savepageno
+}
+\let\shortcontents = \summarycontents
+
+\ifpdf
+ \pdfcatalog{/PageMode /UseOutlines}%
+\fi
+
+% These macros generate individual entries in the table of contents.
+% The first argument is the chapter or section name.
+% The last argument is the page number.
+% The arguments in between are the chapter number, section number, ...
+
+% Chapter-level things, for both the long and short contents.
+\def\chapentry#1#2#3{\dochapentry{#2\labelspace#1}{#3}}
+
+% See comments in \dochapentry re vbox and related settings
+\def\shortchapentry#1#2#3{%
+ \tocentry{\shortchaplabel{#2}\labelspace #1}{\doshortpageno\bgroup#3\egroup}%
+}
+
+% Typeset the label for a chapter or appendix for the short contents.
+% The arg is, e.g. `Appendix A' for an appendix, or `3' for a chapter.
+% We could simplify the code here by writing out an \appendixentry
+% command in the toc file for appendices, instead of using \chapentry
+% for both, but it doesn't seem worth it.
+%
+\newdimen\shortappendixwidth
+%
+\def\shortchaplabel#1{%
+ % Compute width of word "Appendix", may change with language.
+ \setbox0 = \hbox{\shortcontrm \putwordAppendix}%
+ \shortappendixwidth = \wd0
+ %
+ % We typeset #1 in a box of constant width, regardless of the text of
+ % #1, so the chapter titles will come out aligned.
+ \setbox0 = \hbox{#1}%
+ \dimen0 = \ifdim\wd0 > \shortappendixwidth \shortappendixwidth \else 0pt \fi
+ %
+ % This space should be plenty, since a single number is .5em, and the
+ % widest letter (M) is 1em, at least in the Computer Modern fonts.
+ % (This space doesn't include the extra space that gets added after
+ % the label; that gets put in by \shortchapentry above.)
+ \advance\dimen0 by 1.1em
+ \hbox to \dimen0{#1\hfil}%
+}
+
+\def\unnumbchapentry#1#2{\dochapentry{#1}{#2}}
+\def\shortunnumberedentry#1#2{\tocentry{#1}{\doshortpageno\bgroup#2\egroup}}
+
+% Sections.
+\def\secentry#1#2#3#4{\dosecentry{#2.#3\labelspace#1}{#4}}
+\def\unnumbsecentry#1#2{\dosecentry{#1}{#2}}
+
+% Subsections.
+\def\subsecentry#1#2#3#4#5{\dosubsecentry{#2.#3.#4\labelspace#1}{#5}}
+\def\unnumbsubsecentry#1#2{\dosubsecentry{#1}{#2}}
+
+% And subsubsections.
+\def\subsubsecentry#1#2#3#4#5#6{%
+ \dosubsubsecentry{#2.#3.#4.#5\labelspace#1}{#6}}
+\def\unnumbsubsubsecentry#1#2{\dosubsubsecentry{#1}{#2}}
+
+% This parameter controls the indentation of the various levels.
+\newdimen\tocindent \tocindent = 3pc
+
+% Now for the actual typesetting. In all these, #1 is the text and #2 is the
+% page number.
+%
+% If the toc has to be broken over pages, we want it to be at chapters
+% if at all possible; hence the \penalty.
+\def\dochapentry#1#2{%
+ \penalty-300 \vskip1\baselineskip plus.33\baselineskip minus.25\baselineskip
+ \begingroup
+ \chapentryfonts
+ \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+ \endgroup
+ \nobreak\vskip .25\baselineskip plus.1\baselineskip
+}
+
+\def\dosecentry#1#2{\begingroup
+ \secentryfonts \leftskip=\tocindent
+ \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+\endgroup}
+
+\def\dosubsecentry#1#2{\begingroup
+ \subsecentryfonts \leftskip=2\tocindent
+ \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+\endgroup}
+
+\def\dosubsubsecentry#1#2{\begingroup
+ \subsubsecentryfonts \leftskip=3\tocindent
+ \tocentry{#1}{\dopageno\bgroup#2\egroup}%
+\endgroup}
+
+% Final typesetting of a toc entry; we use the same \entry macro as for
+% the index entries, but we want to suppress hyphenation here. (We
+% can't do that in the \entry macro, since index entries might consist
+% of hyphenated-identifiers-that-do-not-fit-on-a-line-and-nothing-else.)
+\def\tocentry#1#2{\begingroup
+ \vskip 0pt plus1pt % allow a little stretch for the sake of nice page breaks
+ % Do not use \turnoffactive in these arguments. Since the toc is
+ % typeset in cmr, so characters such as _ would come out wrong; we
+ % have to do the usual translation tricks.
+ \entry{#1}{#2}%
+\endgroup}
+
+% Space between chapter (or whatever) number and the title.
+\def\labelspace{\hskip1em \relax}
+
+\def\dopageno#1{{\rm #1}}
+\def\doshortpageno#1{{\rm #1}}
+
+\def\chapentryfonts{\secfonts \rm}
+\def\secentryfonts{\textfonts}
+\let\subsecentryfonts = \textfonts
+\let\subsubsecentryfonts = \textfonts
+
+
+\message{environments,}
+% @foo ... @end foo.
+
+% Since these characters are used in examples, it should be an even number of
+% \tt widths. Each \tt character is 1en, so two makes it 1em.
+% Furthermore, these definitions must come after we define our fonts.
+\newbox\dblarrowbox \newbox\longdblarrowbox
+\newbox\pushcharbox \newbox\bullbox
+\newbox\equivbox \newbox\errorbox
+
+%{\tentt
+%\global\setbox\dblarrowbox = \hbox to 1em{\hfil$\Rightarrow$\hfil}
+%\global\setbox\longdblarrowbox = \hbox to 1em{\hfil$\mapsto$\hfil}
+%\global\setbox\pushcharbox = \hbox to 1em{\hfil$\dashv$\hfil}
+%\global\setbox\equivbox = \hbox to 1em{\hfil$\ptexequiv$\hfil}
+% Adapted from the manmac format (p.420 of TeXbook)
+%\global\setbox\bullbox = \hbox to 1em{\kern.15em\vrule height .75ex width .85ex
+% depth .1ex\hfil}
+%}
+
+% @point{}, @result{}, @expansion{}, @print{}, @equiv{}.
+\def\point{$\star$}
+\def\result{\leavevmode\raise.15ex\hbox to 1em{\hfil$\Rightarrow$\hfil}}
+\def\expansion{\leavevmode\raise.1ex\hbox to 1em{\hfil$\mapsto$\hfil}}
+\def\print{\leavevmode\lower.1ex\hbox to 1em{\hfil$\dashv$\hfil}}
+\def\equiv{\leavevmode\lower.1ex\hbox to 1em{\hfil$\ptexequiv$\hfil}}
+
+% Adapted from the TeXbook's \boxit.
+{\tentt \global\dimen0 = 3em}% Width of the box.
+\dimen2 = .55pt % Thickness of rules
+% The text. (`r' is open on the right, `e' somewhat less so on the left.)
+\setbox0 = \hbox{\kern-.75pt \tensf error\kern-1.5pt}
+
+\global\setbox\errorbox=\hbox to \dimen0{\hfil
+ \hsize = \dimen0 \advance\hsize by -5.8pt % Space to left+right.
+ \advance\hsize by -2\dimen2 % Rules.
+ \vbox{
+ \hrule height\dimen2
+ \hbox{\vrule width\dimen2 \kern3pt % Space to left of text.
+ \vtop{\kern2.4pt \box0 \kern2.4pt}% Space above/below.
+ \kern3pt\vrule width\dimen2}% Space to right.
+ \hrule height\dimen2}
+ \hfil}
+
+% The @error{} command.
+\def\error{\leavevmode\lower.7ex\copy\errorbox}
+
+% @tex ... @end tex escapes into raw Tex temporarily.
+% One exception: @ is still an escape character, so that @end tex works.
+% But \@ or @@ will get a plain tex @ character.
+
+\def\tex{\begingroup
+ \catcode `\\=0 \catcode `\{=1 \catcode `\}=2
+ \catcode `\$=3 \catcode `\&=4 \catcode `\#=6
+ \catcode `\^=7 \catcode `\_=8 \catcode `\~=13 \let~=\tie
+ \catcode `\%=14
+ \catcode 43=12 % plus
+ \catcode`\"=12
+ \catcode`\==12
+ \catcode`\|=12
+ \catcode`\<=12
+ \catcode`\>=12
+ \escapechar=`\\
+ %
+ \let\b=\ptexb
+ \let\bullet=\ptexbullet
+ \let\c=\ptexc
+ \let\,=\ptexcomma
+ \let\.=\ptexdot
+ \let\dots=\ptexdots
+ \let\equiv=\ptexequiv
+ \let\!=\ptexexclam
+ \let\i=\ptexi
+ \let\{=\ptexlbrace
+ \let\+=\tabalign
+ \let\}=\ptexrbrace
+ \let\*=\ptexstar
+ \let\t=\ptext
+ %
+ \def\endldots{\mathinner{\ldots\ldots\ldots\ldots}}%
+ \def\enddots{\relax\ifmmode\endldots\else$\mathsurround=0pt \endldots\,$\fi}%
+ \def\@{@}%
+\let\Etex=\endgroup}
+
+% Define @lisp ... @endlisp.
+% @lisp does a \begingroup so it can rebind things,
+% including the definition of @endlisp (which normally is erroneous).
+
+% Amount to narrow the margins by for @lisp.
+\newskip\lispnarrowing \lispnarrowing=0.4in
+
+% This is the definition that ^^M gets inside @lisp, @example, and other
+% such environments. \null is better than a space, since it doesn't
+% have any width.
+\def\lisppar{\null\endgraf}
+
+% Make each space character in the input produce a normal interword
+% space in the output. Don't allow a line break at this space, as this
+% is used only in environments like @example, where each line of input
+% should produce a line of output anyway.
+%
+{\obeyspaces %
+\gdef\sepspaces{\obeyspaces\let =\tie}}
+
+% Define \obeyedspace to be our active space, whatever it is. This is
+% for use in \parsearg.
+{\sepspaces%
+\global\let\obeyedspace= }
+
+% This space is always present above and below environments.
+\newskip\envskipamount \envskipamount = 0pt
+
+% Make spacing and below environment symmetrical. We use \parskip here
+% to help in doing that, since in @example-like environments \parskip
+% is reset to zero; thus the \afterenvbreak inserts no space -- but the
+% start of the next paragraph will insert \parskip
+%
+\def\aboveenvbreak{{%
+ \ifnum\lastpenalty < 10000
+ \advance\envskipamount by \parskip
+ \endgraf
+ \ifdim\lastskip<\envskipamount
+ \removelastskip
+ \penalty-50
+ \vskip\envskipamount
+ \fi
+ \fi
+}}
+
+\let\afterenvbreak = \aboveenvbreak
+
+% \nonarrowing is a flag. If "set", @lisp etc don't narrow margins.
+\let\nonarrowing=\relax
+
+% @cartouche ... @end cartouche: draw rectangle w/rounded corners around
+% environment contents.
+\font\circle=lcircle10
+\newdimen\circthick
+\newdimen\cartouter\newdimen\cartinner
+\newskip\normbskip\newskip\normpskip\newskip\normlskip
+\circthick=\fontdimen8\circle
+%
+\def\ctl{{\circle\char'013\hskip -6pt}}% 6pt from pl file: 1/2charwidth
+\def\ctr{{\hskip 6pt\circle\char'010}}
+\def\cbl{{\circle\char'012\hskip -6pt}}
+\def\cbr{{\hskip 6pt\circle\char'011}}
+\def\carttop{\hbox to \cartouter{\hskip\lskip
+ \ctl\leaders\hrule height\circthick\hfil\ctr
+ \hskip\rskip}}
+\def\cartbot{\hbox to \cartouter{\hskip\lskip
+ \cbl\leaders\hrule height\circthick\hfil\cbr
+ \hskip\rskip}}
+%
+\newskip\lskip\newskip\rskip
+
+\long\def\cartouche{%
+\begingroup
+ \lskip=\leftskip \rskip=\rightskip
+ \leftskip=0pt\rightskip=0pt %we want these *outside*.
+ \cartinner=\hsize \advance\cartinner by-\lskip
+ \advance\cartinner by-\rskip
+ \cartouter=\hsize
+ \advance\cartouter by 18.4pt % allow for 3pt kerns on either
+% side, and for 6pt waste from
+% each corner char, and rule thickness
+ \normbskip=\baselineskip \normpskip=\parskip \normlskip=\lineskip
+ % Flag to tell @lisp, etc., not to narrow margin.
+ \let\nonarrowing=\comment
+ \vbox\bgroup
+ \baselineskip=0pt\parskip=0pt\lineskip=0pt
+ \carttop
+ \hbox\bgroup
+ \hskip\lskip
+ \vrule\kern3pt
+ \vbox\bgroup
+ \hsize=\cartinner
+ \kern3pt
+ \begingroup
+ \baselineskip=\normbskip
+ \lineskip=\normlskip
+ \parskip=\normpskip
+ \vskip -\parskip
+\def\Ecartouche{%
+ \endgroup
+ \kern3pt
+ \egroup
+ \kern3pt\vrule
+ \hskip\rskip
+ \egroup
+ \cartbot
+ \egroup
+\endgroup
+}}
+
+
+% This macro is called at the beginning of all the @example variants,
+% inside a group.
+\def\nonfillstart{%
+ \aboveenvbreak
+ \inENV % This group ends at the end of the body
+ \hfuzz = 12pt % Don't be fussy
+ \sepspaces % Make spaces be word-separators rather than space tokens.
+ \singlespace
+ \let\par = \lisppar % don't ignore blank lines
+ \obeylines % each line of input is a line of output
+ \parskip = 0pt
+ \parindent = 0pt
+ \emergencystretch = 0pt % don't try to avoid overfull boxes
+ % @cartouche defines \nonarrowing to inhibit narrowing
+ % at next level down.
+ \ifx\nonarrowing\relax
+ \advance \leftskip by \lispnarrowing
+ \exdentamount=\lispnarrowing
+ \let\exdent=\nofillexdent
+ \let\nonarrowing=\relax
+ \fi
+}
+
+% Define the \E... control sequence only if we are inside the particular
+% environment, so the error checking in \end will work.
+%
+% To end an @example-like environment, we first end the paragraph (via
+% \afterenvbreak's vertical glue), and then the group. That way we keep
+% the zero \parskip that the environments set -- \parskip glue will be
+% inserted at the beginning of the next paragraph in the document, after
+% the environment.
+%
+\def\nonfillfinish{\afterenvbreak\endgroup}
+
+% @lisp: indented, narrowed, typewriter font.
+\def\lisp{\begingroup
+ \nonfillstart
+ \let\Elisp = \nonfillfinish
+ \tt
+ \let\kbdfont = \kbdexamplefont % Allow @kbd to do something special.
+ \gobble % eat return
+}
+
+% @example: Same as @lisp.
+\def\example{\begingroup \def\Eexample{\nonfillfinish\endgroup}\lisp}
+
+% @small... is usually equivalent to the non-small (@smallbook
+% redefines). We must call \example (or whatever) last in the
+% definition, since it reads the return following the @example (or
+% whatever) command.
+%
+% This actually allows (for example) @end display inside an
+% @smalldisplay. Too bad, but makeinfo will catch the error anyway.
+%
+\def\smalldisplay{\begingroup\def\Esmalldisplay{\nonfillfinish\endgroup}\display}
+\def\smallexample{\begingroup\def\Esmallexample{\nonfillfinish\endgroup}\lisp}
+\def\smallformat{\begingroup\def\Esmallformat{\nonfillfinish\endgroup}\format}
+\def\smalllisp{\begingroup\def\Esmalllisp{\nonfillfinish\endgroup}\lisp}
+
+% Real @smallexample and @smalllisp (when @smallbook): use smaller fonts.
+% Originally contributed by Pavel@xerox.
+\def\smalllispx{\begingroup
+ \def\Esmalllisp{\nonfillfinish\endgroup}%
+ \def\Esmallexample{\nonfillfinish\endgroup}%
+ \smallexamplefonts
+ \lisp
+}
+
+% @display: same as @lisp except keep current font.
+%
+\def\display{\begingroup
+ \nonfillstart
+ \let\Edisplay = \nonfillfinish
+ \gobble
+}
+%
+% @smalldisplay (when @smallbook): @display plus smaller fonts.
+%
+\def\smalldisplayx{\begingroup
+ \def\Esmalldisplay{\nonfillfinish\endgroup}%
+ \smallexamplefonts \rm
+ \display
+}
+
+% @format: same as @display except don't narrow margins.
+%
+\def\format{\begingroup
+ \let\nonarrowing = t
+ \nonfillstart
+ \let\Eformat = \nonfillfinish
+ \gobble
+}
+%
+% @smallformat (when @smallbook): @format plus smaller fonts.
+%
+\def\smallformatx{\begingroup
+ \def\Esmallformat{\nonfillfinish\endgroup}%
+ \smallexamplefonts \rm
+ \format
+}
+
+% @flushleft (same as @format).
+%
+\def\flushleft{\begingroup \def\Eflushleft{\nonfillfinish\endgroup}\format}
+
+% @flushright.
+%
+\def\flushright{\begingroup
+ \let\nonarrowing = t
+ \nonfillstart
+ \let\Eflushright = \nonfillfinish
+ \advance\leftskip by 0pt plus 1fill
+ \gobble
+}
+
+
+% @quotation does normal linebreaking (hence we can't use \nonfillstart)
+% and narrows the margins.
+%
+\def\quotation{%
+ \begingroup\inENV %This group ends at the end of the @quotation body
+ {\parskip=0pt \aboveenvbreak}% because \aboveenvbreak inserts \parskip
+ \singlespace
+ \parindent=0pt
+ % We have retained a nonzero parskip for the environment, since we're
+ % doing normal filling. So to avoid extra space below the environment...
+ \def\Equotation{\parskip = 0pt \nonfillfinish}%
+ %
+ % @cartouche defines \nonarrowing to inhibit narrowing at next level down.
+ \ifx\nonarrowing\relax
+ \advance\leftskip by \lispnarrowing
+ \advance\rightskip by \lispnarrowing
+ \exdentamount = \lispnarrowing
+ \let\nonarrowing = \relax
+ \fi
+}
+
+
+% LaTeX-like @verbatim...@end verbatim and @verb{<char>...<char>}
+% If we want to allow any <char> as delimiter,
+% we need the curly braces so that makeinfo sees the @verb command, eg:
+% `@verbx...x' would look like the '@verbx' command. --janneke@gnu.org
+%
+% [Knuth]: Donald Ervin Knuth, 1996. The TeXbook.
+%
+% [Knuth] p. 344; only we need to do '@' too
+\def\dospecials{%
+ \do\ \do\\\do\@\do\{\do\}\do\$\do\&%
+ \do\#\do\^\do\^^K\do\_\do\^^A\do\%\do\~}
+%
+% [Knuth] p. 380
+\def\uncatcodespecials{%
+ \def\do##1{\catcode`##1=12}\dospecials}
+%
+% [Knuth] pp. 380,381,391
+% Disable Spanish ligatures ?` and !` of \tt font
+\begingroup
+ \catcode`\`=\active\gdef`{\relax\lq}
+\endgroup
+%
+% Setup for the @verb command.
+%
+% Eight spaces for a tab
+\begingroup
+ \catcode`\^^I=\active
+ \gdef\tabeightspaces{\catcode`\^^I=\active\def^^I{\ \ \ \ \ \ \ \ }}
+\endgroup
+%
+\def\setupverb{%
+ \tt % easiest (and conventionally used) font for verbatim
+ \def\par{\leavevmode\endgraf}%
+ \catcode`\`=\active
+ \tabeightspaces
+ % Respect line breaks,
+ % print special symbols as themselves, and
+ % make each space count
+ % must do in this order:
+ \obeylines \uncatcodespecials \sepspaces
+}
+
+% Setup for the @verbatim environment
+%
+% Real tab expansion
+\newdimen\tabw \setbox0=\hbox{\tt\space} \tabw=8\wd0 % tab amount
+%
+\def\starttabbox{\setbox0=\hbox\bgroup}
+\begingroup
+ \catcode`\^^I=\active
+ \gdef\tabexpand{%
+ \catcode`\^^I=\active
+ \def^^I{\leavevmode\egroup
+ \dimen0=\wd0 % the width so far, or since the previous tab
+ \divide\dimen0 by\tabw
+ \multiply\dimen0 by\tabw % compute previous multiple of \tabw
+ \advance\dimen0 by\tabw % advance to next multiple of \tabw
+ \wd0=\dimen0 \box0 \starttabbox
+ }%
+ }
+\endgroup
+\def\setupverbatim{%
+ % Easiest (and conventionally used) font for verbatim
+ \tt
+ \def\par{\leavevmode\egroup\box0\endgraf}%
+ \catcode`\`=\active
+ \tabexpand
+ % Respect line breaks,
+ % print special symbols as themselves, and
+ % make each space count
+ % must do in this order:
+ \obeylines \uncatcodespecials \sepspaces
+ \everypar{\starttabbox}%
+}
+
+% Do the @verb magic: verbatim text is quoted by unique
+% delimiter characters. Before first delimiter expect a
+% right brace, after last delimiter expect closing brace:
+%
+% \def\doverb'{'<char>#1<char>'}'{#1}
+%
+% [Knuth] p. 382; only eat outer {}
+\begingroup
+ \catcode`[=1\catcode`]=2\catcode`\{=12\catcode`\}=12
+ \gdef\doverb{#1[\def\next##1#1}[##1\endgroup]\next]
+\endgroup
+%
+\def\verb{\begingroup\setupverb\doverb}
+%
+%
+% Do the @verbatim magic: define the macro \doverbatim so that
+% the (first) argument ends when '@end verbatim' is reached, ie:
+%
+% \def\doverbatim#1@end verbatim{#1}
+%
+% For Texinfo it's a lot easier than for LaTeX,
+% because texinfo's \verbatim doesn't stop at '\end{verbatim}':
+% we need not redefine '\', '{' and '}'
+%
+% Inspired by LaTeX's verbatim command set [latex.ltx]
+%% Include LaTeX hack for completeness -- never know
+%% \begingroup
+%% \catcode`|=0 \catcode`[=1
+%% \catcode`]=2\catcode`\{=12\catcode`\}=12\catcode`\ =\active
+%% \catcode`\\=12|gdef|doverbatim#1@end verbatim[
+%% #1|endgroup|def|Everbatim[]|end[verbatim]]
+%% |endgroup
+\begingroup
+ \catcode`\ =\active
+ \gdef\doverbatim#1@end verbatim{#1\end{verbatim}}
+\endgroup
+%
+\def\verbatim{%
+ \def\Everbatim{\nonfillfinish\endgroup}%
+ \begingroup
+ \nonfillstart
+ \advance\leftskip by -\defbodyindent
+ \begingroup\setupverbatim\doverbatim
+}
+
+% @verbatiminclude FILE - insert text of file in verbatim environment.
+%
+% Allow normal characters that we make active in the argument (a file name).
+\def\verbatiminclude{%
+ \begingroup
+ \catcode`\\=12
+ \catcode`~=12
+ \catcode`^=12
+ \catcode`_=12
+ \catcode`|=12
+ \catcode`<=12
+ \catcode`>=12
+ \catcode`+=12
+ \parsearg\doverbatiminclude
+}
+\def\setupverbatiminclude{%
+ \begingroup
+ \nonfillstart
+ \advance\leftskip by -\defbodyindent
+ \begingroup\setupverbatim
+}
+%
+\def\doverbatiminclude#1{%
+ % Restore active chars for included file.
+ \endgroup
+ \begingroup
+ \def\thisfile{#1}%
+ \expandafter\expandafter\setupverbatiminclude\input\thisfile
+ \endgroup\nonfillfinish\endgroup
+}
+
+
+\message{defuns,}
+% @defun etc.
+
+% Allow user to change definition object font (\df) internally
+\def\setdeffont #1 {\csname DEF#1\endcsname}
+
+\newskip\defbodyindent \defbodyindent=.4in
+\newskip\defargsindent \defargsindent=50pt
+\newskip\deftypemargin \deftypemargin=12pt
+\newskip\deflastargmargin \deflastargmargin=18pt
+
+\newcount\parencount
+% define \functionparens, which makes ( and ) and & do special things.
+% \functionparens affects the group it is contained in.
+\def\activeparens{%
+\catcode`\(=\active \catcode`\)=\active \catcode`\&=\active
+\catcode`\[=\active \catcode`\]=\active}
+
+% Make control sequences which act like normal parenthesis chars.
+\let\lparen = ( \let\rparen = )
+
+{\activeparens % Now, smart parens don't turn on until &foo (see \amprm)
+
+% Be sure that we always have a definition for `(', etc. For example,
+% if the fn name has parens in it, \boldbrax will not be in effect yet,
+% so TeX would otherwise complain about undefined control sequence.
+\global\let(=\lparen \global\let)=\rparen
+\global\let[=\lbrack \global\let]=\rbrack
+
+\gdef\functionparens{\boldbrax\let&=\amprm\parencount=0 }
+\gdef\boldbrax{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb}
+% This is used to turn on special parens
+% but make & act ordinary (given that it's active).
+\gdef\boldbraxnoamp{\let(=\opnr\let)=\clnr\let[=\lbrb\let]=\rbrb\let&=\ampnr}
+
+% Definitions of (, ) and & used in args for functions.
+% This is the definition of ( outside of all parentheses.
+\gdef\oprm#1 {{\rm\char`\(}#1 \bf \let(=\opnested
+ \global\advance\parencount by 1
+}
+%
+% This is the definition of ( when already inside a level of parens.
+\gdef\opnested{\char`\(\global\advance\parencount by 1 }
+%
+\gdef\clrm{% Print a paren in roman if it is taking us back to depth of 0.
+ % also in that case restore the outer-level definition of (.
+ \ifnum \parencount=1 {\rm \char `\)}\sl \let(=\oprm \else \char `\) \fi
+ \global\advance \parencount by -1 }
+% If we encounter &foo, then turn on ()-hacking afterwards
+\gdef\amprm#1 {{\rm\}\let(=\oprm \let)=\clrm\ }
+%
+\gdef\normalparens{\boldbrax\let&=\ampnr}
+} % End of definition inside \activeparens
+%% These parens (in \boldbrax) actually are a little bolder than the
+%% contained text. This is especially needed for [ and ]
+\def\opnr{{\sf\char`\(}\global\advance\parencount by 1 }
+\def\clnr{{\sf\char`\)}\global\advance\parencount by -1 }
+\let\ampnr = \&
+\def\lbrb{{\bf\char`\[}}
+\def\rbrb{{\bf\char`\]}}
+
+% Active &'s sneak into the index arguments, so make sure it's defined.
+{
+ \catcode`& = 13
+ \global\let& = \ampnr
+}
+
+% First, defname, which formats the header line itself.
+% #1 should be the function name.
+% #2 should be the type of definition, such as "Function".
+
+\def\defname #1#2{%
+% Get the values of \leftskip and \rightskip as they were
+% outside the @def...
+\dimen2=\leftskip
+\advance\dimen2 by -\defbodyindent
+\noindent
+\setbox0=\hbox{\hskip \deflastargmargin{\rm #2}\hskip \deftypemargin}%
+\dimen0=\hsize \advance \dimen0 by -\wd0 % compute size for first line
+\dimen1=\hsize \advance \dimen1 by -\defargsindent %size for continuations
+\parshape 2 0in \dimen0 \defargsindent \dimen1
+% Now output arg 2 ("Function" or some such)
+% ending at \deftypemargin from the right margin,
+% but stuck inside a box of width 0 so it does not interfere with linebreaking
+{% Adjust \hsize to exclude the ambient margins,
+% so that \rightline will obey them.
+\advance \hsize by -\dimen2
+\rlap{\rightline{{\rm #2}\hskip -1.25pc }}}%
+% Make all lines underfull and no complaints:
+\tolerance=10000 \hbadness=10000
+\advance\leftskip by -\defbodyindent
+\exdentamount=\defbodyindent
+{\df #1}\enskip % Generate function name
+}
+
+% Actually process the body of a definition
+% #1 should be the terminating control sequence, such as \Edefun.
+% #2 should be the "another name" control sequence, such as \defunx.
+% #3 should be the control sequence that actually processes the header,
+% such as \defunheader.
+
+\def\defparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody
+\medbreak %
+% Define the end token that this defining construct specifies
+% so that it will exit this group.
+\def#1{\endgraf\endgroup\medbreak}%
+\def#2{\begingroup\obeylines\activeparens\spacesplit#3}%
+\parindent=0in
+\advance\leftskip by \defbodyindent
+\exdentamount=\defbodyindent
+\begingroup %
+\catcode 61=\active % 61 is `='
+\obeylines\activeparens\spacesplit#3}
+
+% #1 is the \E... control sequence to end the definition (which we define).
+% #2 is the \...x control sequence for consecutive fns (which we define).
+% #3 is the control sequence to call to resume processing.
+% #4, delimited by the space, is the class name.
+%
+\def\defmethparsebody#1#2#3#4 {\begingroup\inENV %
+\medbreak %
+% Define the end token that this defining construct specifies
+% so that it will exit this group.
+\def#1{\endgraf\endgroup\medbreak}%
+\def#2##1 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}}}%
+\parindent=0in
+\advance\leftskip by \defbodyindent
+\exdentamount=\defbodyindent
+\begingroup\obeylines\activeparens\spacesplit{#3{#4}}}
+
+% Used for @deftypemethod and @deftypeivar.
+% #1 is the \E... control sequence to end the definition (which we define).
+% #2 is the \...x control sequence for consecutive fns (which we define).
+% #3 is the control sequence to call to resume processing.
+% #4, delimited by a space, is the class name.
+% #5 is the method's return type.
+%
+\def\deftypemethparsebody#1#2#3#4 #5 {\begingroup\inENV
+ \medbreak
+ \def#1{\endgraf\endgroup\medbreak}%
+ \def#2##1 ##2 {\begingroup\obeylines\activeparens\spacesplit{#3{##1}{##2}}}%
+ \parindent=0in
+ \advance\leftskip by \defbodyindent
+ \exdentamount=\defbodyindent
+ \begingroup\obeylines\activeparens\spacesplit{#3{#4}{#5}}}
+
+% Used for @deftypeop. The change from \deftypemethparsebody is an
+% extra argument at the beginning which is the `category', instead of it
+% being the hardwired string `Method' or `Instance Variable'. We have
+% to account for this both in the \...x definition and in parsing the
+% input at hand. Thus also need a control sequence (passed as #5) for
+% the \E... definition to assign the category name to.
+%
+\def\deftypeopparsebody#1#2#3#4#5 #6 {\begingroup\inENV
+ \medbreak
+ \def#1{\endgraf\endgroup\medbreak}%
+ \def#2##1 ##2 ##3 {%
+ \def#4{##1}%
+ \begingroup\obeylines\activeparens\spacesplit{#3{##2}{##3}}}%
+ \parindent=0in
+ \advance\leftskip by \defbodyindent
+ \exdentamount=\defbodyindent
+ \begingroup\obeylines\activeparens\spacesplit{#3{#5}{#6}}}
+
+\def\defopparsebody #1#2#3#4#5 {\begingroup\inENV %
+\medbreak %
+% Define the end token that this defining construct specifies
+% so that it will exit this group.
+\def#1{\endgraf\endgroup\medbreak}%
+\def#2##1 ##2 {\def#4{##1}%
+\begingroup\obeylines\activeparens\spacesplit{#3{##2}}}%
+\parindent=0in
+\advance\leftskip by \defbodyindent
+\exdentamount=\defbodyindent
+\begingroup\obeylines\activeparens\spacesplit{#3{#5}}}
+
+% These parsing functions are similar to the preceding ones
+% except that they do not make parens into active characters.
+% These are used for "variables" since they have no arguments.
+
+\def\defvarparsebody #1#2#3{\begingroup\inENV% Environment for definitionbody
+\medbreak %
+% Define the end token that this defining construct specifies
+% so that it will exit this group.
+\def#1{\endgraf\endgroup\medbreak}%
+\def#2{\begingroup\obeylines\spacesplit#3}%
+\parindent=0in
+\advance\leftskip by \defbodyindent
+\exdentamount=\defbodyindent
+\begingroup %
+\catcode 61=\active %
+\obeylines\spacesplit#3}
+
+% This is used for \def{tp,vr}parsebody. It could probably be used for
+% some of the others, too, with some judicious conditionals.
+%
+\def\parsebodycommon#1#2#3{%
+ \begingroup\inENV %
+ \medbreak %
+ % Define the end token that this defining construct specifies
+ % so that it will exit this group.
+ \def#1{\endgraf\endgroup\medbreak}%
+ \def#2##1 {\begingroup\obeylines\spacesplit{#3{##1}}}%
+ \parindent=0in
+ \advance\leftskip by \defbodyindent
+ \exdentamount=\defbodyindent
+ \begingroup\obeylines
+}
+
+\def\defvrparsebody#1#2#3#4 {%
+ \parsebodycommon{#1}{#2}{#3}%
+ \spacesplit{#3{#4}}%
+}
+
+% This loses on `@deftp {Data Type} {struct termios}' -- it thinks the
+% type is just `struct', because we lose the braces in `{struct
+% termios}' when \spacesplit reads its undelimited argument. Sigh.
+% \let\deftpparsebody=\defvrparsebody
+%
+% So, to get around this, we put \empty in with the type name. That
+% way, TeX won't find exactly `{...}' as an undelimited argument, and
+% won't strip off the braces.
+%
+\def\deftpparsebody #1#2#3#4 {%
+ \parsebodycommon{#1}{#2}{#3}%
+ \spacesplit{\parsetpheaderline{#3{#4}}}\empty
+}
+
+% Fine, but then we have to eventually remove the \empty *and* the
+% braces (if any). That's what this does.
+%
+\def\removeemptybraces\empty#1\relax{#1}
+
+% After \spacesplit has done its work, this is called -- #1 is the final
+% thing to call, #2 the type name (which starts with \empty), and #3
+% (which might be empty) the arguments.
+%
+\def\parsetpheaderline#1#2#3{%
+ #1{\removeemptybraces#2\relax}{#3}%
+}%
+
+\def\defopvarparsebody #1#2#3#4#5 {\begingroup\inENV %
+\medbreak %
+% Define the end token that this defining construct specifies
+% so that it will exit this group.
+\def#1{\endgraf\endgroup\medbreak}%
+\def#2##1 ##2 {\def#4{##1}%
+\begingroup\obeylines\spacesplit{#3{##2}}}%
+\parindent=0in
+\advance\leftskip by \defbodyindent
+\exdentamount=\defbodyindent
+\begingroup\obeylines\spacesplit{#3{#5}}}
+
+% Split up #2 at the first space token.
+% call #1 with two arguments:
+% the first is all of #2 before the space token,
+% the second is all of #2 after that space token.
+% If #2 contains no space token, all of it is passed as the first arg
+% and the second is passed as empty.
+
+{\obeylines
+\gdef\spacesplit#1#2^^M{\endgroup\spacesplitfoo{#1}#2 \relax\spacesplitfoo}%
+\long\gdef\spacesplitfoo#1#2 #3#4\spacesplitfoo{%
+\ifx\relax #3%
+#1{#2}{}\else #1{#2}{#3#4}\fi}}
+
+% So much for the things common to all kinds of definitions.
+
+% Define @defun.
+
+% First, define the processing that is wanted for arguments of \defun
+% Use this to expand the args and terminate the paragraph they make up
+
+\def\defunargs#1{\functionparens \sl
+% Expand, preventing hyphenation at `-' chars.
+% Note that groups don't affect changes in \hyphenchar.
+% Set the font temporarily and use \font in case \setfont made \tensl a macro.
+{\tensl\hyphenchar\font=0}%
+#1%
+{\tensl\hyphenchar\font=45}%
+\ifnum\parencount=0 \else \errmessage{Unbalanced parentheses in @def}\fi%
+\interlinepenalty=10000
+\advance\rightskip by 0pt plus 1fil
+\endgraf\nobreak\vskip -\parskip\nobreak
+}
+
+\def\deftypefunargs #1{%
+% Expand, preventing hyphenation at `-' chars.
+% Note that groups don't affect changes in \hyphenchar.
+% Use \boldbraxnoamp, not \functionparens, so that & is not special.
+\boldbraxnoamp
+\tclose{#1}% avoid \code because of side effects on active chars
+\interlinepenalty=10000
+\advance\rightskip by 0pt plus 1fil
+\endgraf\nobreak\vskip -\parskip\nobreak
+}
+
+% Do complete processing of one @defun or @defunx line already parsed.
+
+% @deffn Command forward-char nchars
+
+\def\deffn{\defmethparsebody\Edeffn\deffnx\deffnheader}
+
+\def\deffnheader #1#2#3{\doind {fn}{\code{#2}}%
+\begingroup\defname {#2}{#1}\defunargs{#3}\endgroup %
+\catcode 61=\other % Turn off change made in \defparsebody
+}
+
+% @defun == @deffn Function
+
+\def\defun{\defparsebody\Edefun\defunx\defunheader}
+
+\def\defunheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
+\begingroup\defname {#1}{\putwordDeffunc}%
+\defunargs {#2}\endgroup %
+\catcode 61=\other % Turn off change made in \defparsebody
+}
+
+% @deftypefun int foobar (int @var{foo}, float @var{bar})
+
+\def\deftypefun{\defparsebody\Edeftypefun\deftypefunx\deftypefunheader}
+
+% #1 is the data type. #2 is the name and args.
+\def\deftypefunheader #1#2{\deftypefunheaderx{#1}#2 \relax}
+% #1 is the data type, #2 the name, #3 the args.
+\def\deftypefunheaderx #1#2 #3\relax{%
+\doind {fn}{\code{#2}}% Make entry in function index
+\begingroup\defname {\defheaderxcond#1\relax$$$#2}{\putwordDeftypefun}%
+\deftypefunargs {#3}\endgroup %
+\catcode 61=\other % Turn off change made in \defparsebody
+}
+
+% @deftypefn {Library Function} int foobar (int @var{foo}, float @var{bar})
+
+\def\deftypefn{\defmethparsebody\Edeftypefn\deftypefnx\deftypefnheader}
+
+% \defheaderxcond#1\relax$$$
+% puts #1 in @code, followed by a space, but does nothing if #1 is null.
+\def\defheaderxcond#1#2$$${\ifx#1\relax\else\code{#1#2} \fi}
+
+% #1 is the classification. #2 is the data type. #3 is the name and args.
+\def\deftypefnheader #1#2#3{\deftypefnheaderx{#1}{#2}#3 \relax}
+% #1 is the classification, #2 the data type, #3 the name, #4 the args.
+\def\deftypefnheaderx #1#2#3 #4\relax{%
+\doind {fn}{\code{#3}}% Make entry in function index
+\begingroup
+\normalparens % notably, turn off `&' magic, which prevents
+% at least some C++ text from working
+\defname {\defheaderxcond#2\relax$$$#3}{#1}%
+\deftypefunargs {#4}\endgroup %
+\catcode 61=\other % Turn off change made in \defparsebody
+}
+
+% @defmac == @deffn Macro
+
+\def\defmac{\defparsebody\Edefmac\defmacx\defmacheader}
+
+\def\defmacheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
+\begingroup\defname {#1}{\putwordDefmac}%
+\defunargs {#2}\endgroup %
+\catcode 61=\other % Turn off change made in \defparsebody
+}
+
+% @defspec == @deffn Special Form
+
+\def\defspec{\defparsebody\Edefspec\defspecx\defspecheader}
+
+\def\defspecheader #1#2{\doind {fn}{\code{#1}}% Make entry in function index
+\begingroup\defname {#1}{\putwordDefspec}%
+\defunargs {#2}\endgroup %
+\catcode 61=\other % Turn off change made in \defparsebody
+}
+
+% @defop CATEGORY CLASS OPERATION ARG...
+%
+\def\defop #1 {\def\defoptype{#1}%
+\defopparsebody\Edefop\defopx\defopheader\defoptype}
+%
+\def\defopheader#1#2#3{%
+\dosubind {fn}{\code{#2}}{\putwordon\ #1}% Make entry in function index
+\begingroup\defname {#2}{\defoptype\ \putwordon\ #1}%
+\defunargs {#3}\endgroup %
+}
+
+% @deftypeop CATEGORY CLASS TYPE OPERATION ARG...
+%
+\def\deftypeop #1 {\def\deftypeopcategory{#1}%
+ \deftypeopparsebody\Edeftypeop\deftypeopx\deftypeopheader
+ \deftypeopcategory}
+%
+% #1 is the class name, #2 the data type, #3 the operation name, #4 the args.
+\def\deftypeopheader#1#2#3#4{%
+ \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index
+ \begingroup
+ \defname{\defheaderxcond#2\relax$$$#3}
+ {\deftypeopcategory\ \putwordon\ \code{#1}}%
+ \deftypefunargs{#4}%
+ \endgroup
+}
+
+% @deftypemethod CLASS TYPE METHOD ARG...
+%
+\def\deftypemethod{%
+ \deftypemethparsebody\Edeftypemethod\deftypemethodx\deftypemethodheader}
+%
+% #1 is the class name, #2 the data type, #3 the method name, #4 the args.
+\def\deftypemethodheader#1#2#3#4{%
+ \dosubind{fn}{\code{#3}}{\putwordon\ \code{#1}}% entry in function index
+ \begingroup
+ \defname{\defheaderxcond#2\relax$$$#3}{\putwordMethodon\ \code{#1}}%
+ \deftypefunargs{#4}%
+ \endgroup
+}
+
+% @deftypeivar CLASS TYPE VARNAME
+%
+\def\deftypeivar{%
+ \deftypemethparsebody\Edeftypeivar\deftypeivarx\deftypeivarheader}
+%
+% #1 is the class name, #2 the data type, #3 the variable name.
+\def\deftypeivarheader#1#2#3{%
+ \dosubind{vr}{\code{#3}}{\putwordof\ \code{#1}}% entry in variable index
+ \begingroup
+ \defname{\defheaderxcond#2\relax$$$#3}
+ {\putwordInstanceVariableof\ \code{#1}}%
+ \defvarargs{#3}%
+ \endgroup
+}
+
+% @defmethod == @defop Method
+%
+\def\defmethod{\defmethparsebody\Edefmethod\defmethodx\defmethodheader}
+%
+% #1 is the class name, #2 the method name, #3 the args.
+\def\defmethodheader#1#2#3{%
+ \dosubind{fn}{\code{#2}}{\putwordon\ \code{#1}}% entry in function index
+ \begingroup
+ \defname{#2}{\putwordMethodon\ \code{#1}}%
+ \defunargs{#3}%
+ \endgroup
+}
+
+% @defcv {Class Option} foo-class foo-flag
+
+\def\defcv #1 {\def\defcvtype{#1}%
+\defopvarparsebody\Edefcv\defcvx\defcvarheader\defcvtype}
+
+\def\defcvarheader #1#2#3{%
+\dosubind {vr}{\code{#2}}{\putwordof\ #1}% Make entry in var index
+\begingroup\defname {#2}{\defcvtype\ \putwordof\ #1}%
+\defvarargs {#3}\endgroup %
+}
+
+% @defivar CLASS VARNAME == @defcv {Instance Variable} CLASS VARNAME
+%
+\def\defivar{\defvrparsebody\Edefivar\defivarx\defivarheader}
+%
+\def\defivarheader#1#2#3{%
+ \dosubind {vr}{\code{#2}}{\putwordof\ #1}% entry in var index
+ \begingroup
+ \defname{#2}{\putwordInstanceVariableof\ #1}%
+ \defvarargs{#3}%
+ \endgroup
+}
+
+% @defvar
+% First, define the processing that is wanted for arguments of @defvar.
+% This is actually simple: just print them in roman.
+% This must expand the args and terminate the paragraph they make up
+\def\defvarargs #1{\normalparens #1%
+\interlinepenalty=10000
+\endgraf\nobreak\vskip -\parskip\nobreak}
+
+% @defvr Counter foo-count
+
+\def\defvr{\defvrparsebody\Edefvr\defvrx\defvrheader}
+
+\def\defvrheader #1#2#3{\doind {vr}{\code{#2}}%
+\begingroup\defname {#2}{#1}\defvarargs{#3}\endgroup}
+
+% @defvar == @defvr Variable
+
+\def\defvar{\defvarparsebody\Edefvar\defvarx\defvarheader}
+
+\def\defvarheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
+\begingroup\defname {#1}{\putwordDefvar}%
+\defvarargs {#2}\endgroup %
+}
+
+% @defopt == @defvr {User Option}
+
+\def\defopt{\defvarparsebody\Edefopt\defoptx\defoptheader}
+
+\def\defoptheader #1#2{\doind {vr}{\code{#1}}% Make entry in var index
+\begingroup\defname {#1}{\putwordDefopt}%
+\defvarargs {#2}\endgroup %
+}
+
+% @deftypevar int foobar
+
+\def\deftypevar{\defvarparsebody\Edeftypevar\deftypevarx\deftypevarheader}
+
+% #1 is the data type. #2 is the name, perhaps followed by text that
+% is actually part of the data type, which should not be put into the index.
+\def\deftypevarheader #1#2{%
+\dovarind#2 \relax% Make entry in variables index
+\begingroup\defname {\defheaderxcond#1\relax$$$#2}{\putwordDeftypevar}%
+\interlinepenalty=10000
+\endgraf\nobreak\vskip -\parskip\nobreak
+\endgroup}
+\def\dovarind#1 #2\relax{\doind{vr}{\code{#1}}}
+
+% @deftypevr {Global Flag} int enable
+
+\def\deftypevr{\defvrparsebody\Edeftypevr\deftypevrx\deftypevrheader}
+
+\def\deftypevrheader #1#2#3{\dovarind#3 \relax%
+\begingroup\defname {\defheaderxcond#2\relax$$$#3}{#1}
+\interlinepenalty=10000
+\endgraf\nobreak\vskip -\parskip\nobreak
+\endgroup}
+
+% Now define @deftp
+% Args are printed in bold, a slight difference from @defvar.
+
+\def\deftpargs #1{\bf \defvarargs{#1}}
+
+% @deftp Class window height width ...
+
+\def\deftp{\deftpparsebody\Edeftp\deftpx\deftpheader}
+
+\def\deftpheader #1#2#3{\doind {tp}{\code{#2}}%
+\begingroup\defname {#2}{#1}\deftpargs{#3}\endgroup}
+
+% These definitions are used if you use @defunx (etc.)
+% anywhere other than immediately after a @defun or @defunx.
+%
+\def\defcvx#1 {\errmessage{@defcvx in invalid context}}
+\def\deffnx#1 {\errmessage{@deffnx in invalid context}}
+\def\defivarx#1 {\errmessage{@defivarx in invalid context}}
+\def\defmacx#1 {\errmessage{@defmacx in invalid context}}
+\def\defmethodx#1 {\errmessage{@defmethodx in invalid context}}
+\def\defoptx #1 {\errmessage{@defoptx in invalid context}}
+\def\defopx#1 {\errmessage{@defopx in invalid context}}
+\def\defspecx#1 {\errmessage{@defspecx in invalid context}}
+\def\deftpx#1 {\errmessage{@deftpx in invalid context}}
+\def\deftypefnx#1 {\errmessage{@deftypefnx in invalid context}}
+\def\deftypefunx#1 {\errmessage{@deftypefunx in invalid context}}
+\def\deftypeivarx#1 {\errmessage{@deftypeivarx in invalid context}}
+\def\deftypemethodx#1 {\errmessage{@deftypemethodx in invalid context}}
+\def\deftypeopx#1 {\errmessage{@deftypeopx in invalid context}}
+\def\deftypevarx#1 {\errmessage{@deftypevarx in invalid context}}
+\def\deftypevrx#1 {\errmessage{@deftypevrx in invalid context}}
+\def\defunx#1 {\errmessage{@defunx in invalid context}}
+\def\defvarx#1 {\errmessage{@defvarx in invalid context}}
+\def\defvrx#1 {\errmessage{@defvrx in invalid context}}
+
+
+\message{macros,}
+% @macro.
+
+% To do this right we need a feature of e-TeX, \scantokens,
+% which we arrange to emulate with a temporary file in ordinary TeX.
+\ifx\eTeXversion\undefined
+ \newwrite\macscribble
+ \def\scanmacro#1{%
+ \begingroup \newlinechar`\^^M
+ % Undo catcode changes of \startcontents and \doprintindex
+ \catcode`\@=0 \catcode`\\=12 \escapechar=`\@
+ % Append \endinput to make sure that TeX does not see the ending newline.
+ \toks0={#1\endinput}%
+ \immediate\openout\macscribble=\jobname.tmp
+ \immediate\write\macscribble{\the\toks0}%
+ \immediate\closeout\macscribble
+ \let\xeatspaces\eatspaces
+ \input \jobname.tmp
+ \endgroup
+}
+\else
+\def\scanmacro#1{%
+\begingroup \newlinechar`\^^M
+% Undo catcode changes of \startcontents and \doprintindex
+\catcode`\@=0 \catcode`\\=12 \escapechar=`\@
+\let\xeatspaces\eatspaces\scantokens{#1\endinput}\endgroup}
+\fi
+
+\newcount\paramno % Count of parameters
+\newtoks\macname % Macro name
+\newif\ifrecursive % Is it recursive?
+\def\macrolist{} % List of all defined macros in the form
+ % \do\macro1\do\macro2...
+
+% Utility routines.
+% Thisdoes \let #1 = #2, except with \csnames.
+\def\cslet#1#2{%
+\expandafter\expandafter
+\expandafter\let
+\expandafter\expandafter
+\csname#1\endcsname
+\csname#2\endcsname}
+
+% Trim leading and trailing spaces off a string.
+% Concepts from aro-bend problem 15 (see CTAN).
+{\catcode`\@=11
+\gdef\eatspaces #1{\expandafter\trim@\expandafter{#1 }}
+\gdef\trim@ #1{\trim@@ @#1 @ #1 @ @@}
+\gdef\trim@@ #1@ #2@ #3@@{\trim@@@\empty #2 @}
+\def\unbrace#1{#1}
+\unbrace{\gdef\trim@@@ #1 } #2@{#1}
+}
+
+% Trim a single trailing ^^M off a string.
+{\catcode`\^^M=12\catcode`\Q=3%
+\gdef\eatcr #1{\eatcra #1Q^^MQ}%
+\gdef\eatcra#1^^MQ{\eatcrb#1Q}%
+\gdef\eatcrb#1Q#2Q{#1}%
+}
+
+% Macro bodies are absorbed as an argument in a context where
+% all characters are catcode 10, 11 or 12, except \ which is active
+% (as in normal texinfo). It is necessary to change the definition of \.
+
+% It's necessary to have hard CRs when the macro is executed. This is
+% done by making ^^M (\endlinechar) catcode 12 when reading the macro
+% body, and then making it the \newlinechar in \scanmacro.
+
+\def\macrobodyctxt{%
+ \catcode`\~=12
+ \catcode`\^=12
+ \catcode`\_=12
+ \catcode`\|=12
+ \catcode`\<=12
+ \catcode`\>=12
+ \catcode`\+=12
+ \catcode`\{=12
+ \catcode`\}=12
+ \catcode`\@=12
+ \catcode`\^^M=12
+ \usembodybackslash}
+
+\def\macroargctxt{%
+ \catcode`\~=12
+ \catcode`\^=12
+ \catcode`\_=12
+ \catcode`\|=12
+ \catcode`\<=12
+ \catcode`\>=12
+ \catcode`\+=12
+ \catcode`\@=12
+ \catcode`\\=12}
+
+% \mbodybackslash is the definition of \ in @macro bodies.
+% It maps \foo\ => \csname macarg.foo\endcsname => #N
+% where N is the macro parameter number.
+% We define \csname macarg.\endcsname to be \realbackslash, so
+% \\ in macro replacement text gets you a backslash.
+
+{\catcode`@=0 @catcode`@\=@active
+ @gdef@usembodybackslash{@let\=@mbodybackslash}
+ @gdef@mbodybackslash#1\{@csname macarg.#1@endcsname}
+}
+\expandafter\def\csname macarg.\endcsname{\realbackslash}
+
+\def\macro{\recursivefalse\parsearg\macroxxx}
+\def\rmacro{\recursivetrue\parsearg\macroxxx}
+
+\def\macroxxx#1{%
+ \getargs{#1}% now \macname is the macname and \argl the arglist
+ \ifx\argl\empty % no arguments
+ \paramno=0%
+ \else
+ \expandafter\parsemargdef \argl;%
+ \fi
+ \if1\csname ismacro.\the\macname\endcsname
+ \message{Warning: redefining \the\macname}%
+ \else
+ \expandafter\ifx\csname \the\macname\endcsname \relax
+ \else \errmessage{The name \the\macname\space is reserved}\fi
+ \global\cslet{macsave.\the\macname}{\the\macname}%
+ \global\expandafter\let\csname ismacro.\the\macname\endcsname=1%
+ % Add the macroname to \macrolist
+ \toks0 = \expandafter{\macrolist\do}%
+ \xdef\macrolist{\the\toks0
+ \expandafter\noexpand\csname\the\macname\endcsname}%
+ \fi
+ \begingroup \macrobodyctxt
+ \ifrecursive \expandafter\parsermacbody
+ \else \expandafter\parsemacbody
+ \fi}
+
+\def\unmacro{\parsearg\unmacroxxx}
+\def\unmacroxxx#1{%
+ \if1\csname ismacro.#1\endcsname
+ \global\cslet{#1}{macsave.#1}%
+ \global\expandafter\let \csname ismacro.#1\endcsname=0%
+ % Remove the macro name from \macrolist
+ \begingroup
+ \edef\tempa{\expandafter\noexpand\csname#1\endcsname}%
+ \def\do##1{%
+ \def\tempb{##1}%
+ \ifx\tempa\tempb
+ % remove this
+ \else
+ \toks0 = \expandafter{\newmacrolist\do}%
+ \edef\newmacrolist{\the\toks0\expandafter\noexpand\tempa}%
+ \fi}%
+ \def\newmacrolist{}%
+ % Execute macro list to define \newmacrolist
+ \macrolist
+ \global\let\macrolist\newmacrolist
+ \endgroup
+ \else
+ \errmessage{Macro #1 not defined}%
+ \fi
+}
+
+% This makes use of the obscure feature that if the last token of a
+% <parameter list> is #, then the preceding argument is delimited by
+% an opening brace, and that opening brace is not consumed.
+\def\getargs#1{\getargsxxx#1{}}
+\def\getargsxxx#1#{\getmacname #1 \relax\getmacargs}
+\def\getmacname #1 #2\relax{\macname={#1}}
+\def\getmacargs#1{\def\argl{#1}}
+
+% Parse the optional {params} list. Set up \paramno and \paramlist
+% so \defmacro knows what to do. Define \macarg.blah for each blah
+% in the params list, to be ##N where N is the position in that list.
+% That gets used by \mbodybackslash (above).
+
+% We need to get `macro parameter char #' into several definitions.
+% The technique used is stolen from LaTeX: let \hash be something
+% unexpandable, insert that wherever you need a #, and then redefine
+% it to # just before using the token list produced.
+%
+% The same technique is used to protect \eatspaces till just before
+% the macro is used.
+
+\def\parsemargdef#1;{\paramno=0\def\paramlist{}%
+ \let\hash\relax\let\xeatspaces\relax\parsemargdefxxx#1,;,}
+\def\parsemargdefxxx#1,{%
+ \if#1;\let\next=\relax
+ \else \let\next=\parsemargdefxxx
+ \advance\paramno by 1%
+ \expandafter\edef\csname macarg.\eatspaces{#1}\endcsname
+ {\xeatspaces{\hash\the\paramno}}%
+ \edef\paramlist{\paramlist\hash\the\paramno,}%
+ \fi\next}
+
+% These two commands read recursive and nonrecursive macro bodies.
+% (They're different since rec and nonrec macros end differently.)
+
+\long\def\parsemacbody#1@end macro%
+{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
+\long\def\parsermacbody#1@end rmacro%
+{\xdef\temp{\eatcr{#1}}\endgroup\defmacro}%
+
+% This defines the macro itself. There are six cases: recursive and
+% nonrecursive macros of zero, one, and many arguments.
+% Much magic with \expandafter here.
+% \xdef is used so that macro definitions will survive the file
+% they're defined in; @include reads the file inside a group.
+\def\defmacro{%
+ \let\hash=##% convert placeholders to macro parameter chars
+ \ifrecursive
+ \ifcase\paramno
+ % 0
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \noexpand\scanmacro{\temp}}%
+ \or % 1
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \bgroup\noexpand\macroargctxt
+ \noexpand\braceorline
+ \expandafter\noexpand\csname\the\macname xxx\endcsname}%
+ \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
+ \egroup\noexpand\scanmacro{\temp}}%
+ \else % many
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \bgroup\noexpand\macroargctxt
+ \noexpand\csname\the\macname xx\endcsname}%
+ \expandafter\xdef\csname\the\macname xx\endcsname##1{%
+ \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
+ \expandafter\expandafter
+ \expandafter\xdef
+ \expandafter\expandafter
+ \csname\the\macname xxx\endcsname
+ \paramlist{\egroup\noexpand\scanmacro{\temp}}%
+ \fi
+ \else
+ \ifcase\paramno
+ % 0
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \noexpand\norecurse{\the\macname}%
+ \noexpand\scanmacro{\temp}\egroup}%
+ \or % 1
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \bgroup\noexpand\macroargctxt
+ \noexpand\braceorline
+ \expandafter\noexpand\csname\the\macname xxx\endcsname}%
+ \expandafter\xdef\csname\the\macname xxx\endcsname##1{%
+ \egroup
+ \noexpand\norecurse{\the\macname}%
+ \noexpand\scanmacro{\temp}\egroup}%
+ \else % many
+ \expandafter\xdef\csname\the\macname\endcsname{%
+ \bgroup\noexpand\macroargctxt
+ \expandafter\noexpand\csname\the\macname xx\endcsname}%
+ \expandafter\xdef\csname\the\macname xx\endcsname##1{%
+ \expandafter\noexpand\csname\the\macname xxx\endcsname ##1,}%
+ \expandafter\expandafter
+ \expandafter\xdef
+ \expandafter\expandafter
+ \csname\the\macname xxx\endcsname
+ \paramlist{%
+ \egroup
+ \noexpand\norecurse{\the\macname}%
+ \noexpand\scanmacro{\temp}\egroup}%
+ \fi
+ \fi}
+
+\def\norecurse#1{\bgroup\cslet{#1}{macsave.#1}}
+
+% \braceorline decides whether the next nonwhitespace character is a
+% {. If so it reads up to the closing }, if not, it reads the whole
+% line. Whatever was read is then fed to the next control sequence
+% as an argument (by \parsebrace or \parsearg)
+\def\braceorline#1{\let\next=#1\futurelet\nchar\braceorlinexxx}
+\def\braceorlinexxx{%
+ \ifx\nchar\bgroup\else
+ \expandafter\parsearg
+ \fi \next}
+
+% We mant to disable all macros during \shipout so that they are not
+% expanded by \write.
+\def\turnoffmacros{\begingroup \def\do##1{\let\noexpand##1=\relax}%
+ \edef\next{\macrolist}\expandafter\endgroup\next}
+
+
+% @alias.
+% We need some trickery to remove the optional spaces around the equal
+% sign. Just make them active and then expand them all to nothing.
+\def\alias{\begingroup\obeyspaces\parsearg\aliasxxx}
+\def\aliasxxx #1{\aliasyyy#1\relax}
+\def\aliasyyy #1=#2\relax{\ignoreactivespaces
+\edef\next{\global\let\expandafter\noexpand\csname#1\endcsname=%
+ \expandafter\noexpand\csname#2\endcsname}%
+\expandafter\endgroup\next}
+
+
+\message{cross references,}
+% @xref etc.
+
+\newwrite\auxfile
+
+\newif\ifhavexrefs % True if xref values are known.
+\newif\ifwarnedxrefs % True if we warned once that they aren't known.
+
+% @inforef is relatively simple.
+\def\inforef #1{\inforefzzz #1,,,,**}
+\def\inforefzzz #1,#2,#3,#4**{\putwordSee{} \putwordInfo{} \putwordfile{} \file{\ignorespaces #3{}},
+ node \samp{\ignorespaces#1{}}}
+
+% @node's job is to define \lastnode.
+\def\node{\ENVcheck\parsearg\nodezzz}
+\def\nodezzz#1{\nodexxx [#1,]}
+\def\nodexxx[#1,#2]{\gdef\lastnode{#1}}
+\let\nwnode=\node
+\let\lastnode=\relax
+
+% The sectioning commands (@chapter, etc.) call these.
+\def\donoderef{%
+ \ifx\lastnode\relax\else
+ \expandafter\expandafter\expandafter\setref{\lastnode}%
+ {Ysectionnumberandtype}%
+ \global\let\lastnode=\relax
+ \fi
+}
+\def\unnumbnoderef{%
+ \ifx\lastnode\relax\else
+ \expandafter\expandafter\expandafter\setref{\lastnode}{Ynothing}%
+ \global\let\lastnode=\relax
+ \fi
+}
+\def\appendixnoderef{%
+ \ifx\lastnode\relax\else
+ \expandafter\expandafter\expandafter\setref{\lastnode}%
+ {Yappendixletterandtype}%
+ \global\let\lastnode=\relax
+ \fi
+}
+
+
+% @anchor{NAME} -- define xref target at arbitrary point.
+%
+\newcount\savesfregister
+\gdef\savesf{\relax \ifhmode \savesfregister=\spacefactor \fi}
+\gdef\restoresf{\relax \ifhmode \spacefactor=\savesfregister \fi}
+\gdef\anchor#1{\savesf \setref{#1}{Ynothing}\restoresf \ignorespaces}
+
+% \setref{NAME}{SNT} defines a cross-reference point NAME, namely
+% NAME-title, NAME-pg, and NAME-SNT. Called from \foonoderef. We have
+% to set \indexdummies so commands such as @code in a section title
+% aren't expanded. It would be nicer not to expand the titles in the
+% first place, but there's so many layers that that is hard to do.
+%
+\def\setref#1#2{{%
+ \indexdummies
+ \pdfmkdest{#1}%
+ \dosetq{#1-title}{Ytitle}%
+ \dosetq{#1-pg}{Ypagenumber}%
+ \dosetq{#1-snt}{#2}%
+}}
+
+% @xref, @pxref, and @ref generate cross-references. For \xrefX, #1 is
+% the node name, #2 the name of the Info cross-reference, #3 the printed
+% node name, #4 the name of the Info file, #5 the name of the printed
+% manual. All but the node name can be omitted.
+%
+\def\pxref#1{\putwordsee{} \xrefX[#1,,,,,,,]}
+\def\xref#1{\putwordSee{} \xrefX[#1,,,,,,,]}
+\def\ref#1{\xrefX[#1,,,,,,,]}
+\def\xrefX[#1,#2,#3,#4,#5,#6]{\begingroup
+ \unsepspaces
+ \def\printedmanual{\ignorespaces #5}%
+ \def\printednodename{\ignorespaces #3}%
+ \setbox1=\hbox{\printedmanual}%
+ \setbox0=\hbox{\printednodename}%
+ \ifdim \wd0 = 0pt
+ % No printed node name was explicitly given.
+ \expandafter\ifx\csname SETxref-automatic-section-title\endcsname\relax
+ % Use the node name inside the square brackets.
+ \def\printednodename{\ignorespaces #1}%
+ \else
+ % Use the actual chapter/section title appear inside
+ % the square brackets. Use the real section title if we have it.
+ \ifdim \wd1 > 0pt
+ % It is in another manual, so we don't have it.
+ \def\printednodename{\ignorespaces #1}%
+ \else
+ \ifhavexrefs
+ % We know the real title if we have the xref values.
+ \def\printednodename{\refx{#1-title}{}}%
+ \else
+ % Otherwise just copy the Info node name.
+ \def\printednodename{\ignorespaces #1}%
+ \fi%
+ \fi
+ \fi
+ \fi
+ %
+ % If we use \unhbox0 and \unhbox1 to print the node names, TeX does not
+ % insert empty discretionaries after hyphens, which means that it will
+ % not find a line break at a hyphen in a node names. Since some manuals
+ % are best written with fairly long node names, containing hyphens, this
+ % is a loss. Therefore, we give the text of the node name again, so it
+ % is as if TeX is seeing it for the first time.
+ \ifpdf
+ \leavevmode
+ \getfilename{#4}%
+ {\normalturnoffactive
+ \ifnum\filenamelength>0
+ \startlink attr{/Border [0 0 0]}%
+ goto file{\the\filename.pdf} name{#1}%
+ \else
+ \startlink attr{/Border [0 0 0]}%
+ goto name{#1}%
+ \fi
+ }%
+ \linkcolor
+ \fi
+ %
+ \ifdim \wd1 > 0pt
+ \putwordsection{} ``\printednodename'' \putwordin{} \cite{\printedmanual}%
+ \else
+ % _ (for example) has to be the character _ for the purposes of the
+ % control sequence corresponding to the node, but it has to expand
+ % into the usual \leavevmode...\vrule stuff for purposes of
+ % printing. So we \turnoffactive for the \refx-snt, back on for the
+ % printing, back off for the \refx-pg.
+ {\normalturnoffactive
+ % Only output a following space if the -snt ref is nonempty; for
+ % @unnumbered and @anchor, it won't be.
+ \setbox2 = \hbox{\ignorespaces \refx{#1-snt}{}}%
+ \ifdim \wd2 > 0pt \refx{#1-snt}\space\fi
+ }%
+ % [mynode],
+ [\printednodename],\space
+ % page 3
+ \turnoffactive \putwordpage\tie\refx{#1-pg}{}%
+ \fi
+ \endlink
+\endgroup}
+
+% \dosetq is the interface for calls from other macros
+
+% Use \normalturnoffactive so that punctuation chars such as underscore
+% and backslash work in node names. (\turnoffactive doesn't do \.)
+\def\dosetq#1#2{%
+ {\let\folio=0%
+ \normalturnoffactive
+ \edef\next{\write\auxfile{\internalsetq{#1}{#2}}}%
+ \iflinks
+ \next
+ \fi
+ }%
+}
+
+% \internalsetq {foo}{page} expands into
+% CHARACTERS 'xrdef {foo}{...expansion of \Ypage...}
+% When the aux file is read, ' is the escape character
+
+\def\internalsetq #1#2{'xrdef {#1}{\csname #2\endcsname}}
+
+% Things to be expanded by \internalsetq
+
+\def\Ypagenumber{\folio}
+
+\def\Ytitle{\thissection}
+
+\def\Ynothing{}
+
+\def\Ysectionnumberandtype{%
+\ifnum\secno=0 \putwordChapter\xreftie\the\chapno %
+\else \ifnum \subsecno=0 \putwordSection\xreftie\the\chapno.\the\secno %
+\else \ifnum \subsubsecno=0 %
+\putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno %
+\else %
+\putwordSection\xreftie\the\chapno.\the\secno.\the\subsecno.\the\subsubsecno %
+\fi \fi \fi }
+
+\def\Yappendixletterandtype{%
+\ifnum\secno=0 \putwordAppendix\xreftie'char\the\appendixno{}%
+\else \ifnum \subsecno=0 \putwordSection\xreftie'char\the\appendixno.\the\secno %
+\else \ifnum \subsubsecno=0 %
+\putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno %
+\else %
+\putwordSection\xreftie'char\the\appendixno.\the\secno.\the\subsecno.\the\subsubsecno %
+\fi \fi \fi }
+
+\gdef\xreftie{'tie}
+
+% Use TeX 3.0's \inputlineno to get the line number, for better error
+% messages, but if we're using an old version of TeX, don't do anything.
+%
+\ifx\inputlineno\thisisundefined
+ \let\linenumber = \empty % Non-3.0.
+\else
+ \def\linenumber{\the\inputlineno:\space}
+\fi
+
+% Define \refx{NAME}{SUFFIX} to reference a cross-reference string named NAME.
+% If its value is nonempty, SUFFIX is output afterward.
+
+\def\refx#1#2{%
+ \expandafter\ifx\csname X#1\endcsname\relax
+ % If not defined, say something at least.
+ \angleleft un\-de\-fined\angleright
+ \iflinks
+ \ifhavexrefs
+ \message{\linenumber Undefined cross reference `#1'.}%
+ \else
+ \ifwarnedxrefs\else
+ \global\warnedxrefstrue
+ \message{Cross reference values unknown; you must run TeX again.}%
+ \fi
+ \fi
+ \fi
+ \else
+ % It's defined, so just use it.
+ \csname X#1\endcsname
+ \fi
+ #2% Output the suffix in any case.
+}
+
+% This is the macro invoked by entries in the aux file.
+%
+\def\xrdef#1{\begingroup
+ % Reenable \ as an escape while reading the second argument.
+ \catcode`\\ = 0
+ \afterassignment\endgroup
+ \expandafter\gdef\csname X#1\endcsname
+}
+
+% Read the last existing aux file, if any. No error if none exists.
+\def\readauxfile{\begingroup
+ \catcode`\^^@=\other
+ \catcode`\^^A=\other
+ \catcode`\^^B=\other
+ \catcode`\^^C=\other
+ \catcode`\^^D=\other
+ \catcode`\^^E=\other
+ \catcode`\^^F=\other
+ \catcode`\^^G=\other
+ \catcode`\^^H=\other
+ \catcode`\^^K=\other
+ \catcode`\^^L=\other
+ \catcode`\^^N=\other
+ \catcode`\^^P=\other
+ \catcode`\^^Q=\other
+ \catcode`\^^R=\other
+ \catcode`\^^S=\other
+ \catcode`\^^T=\other
+ \catcode`\^^U=\other
+ \catcode`\^^V=\other
+ \catcode`\^^W=\other
+ \catcode`\^^X=\other
+ \catcode`\^^Z=\other
+ \catcode`\^^[=\other
+ \catcode`\^^\=\other
+ \catcode`\^^]=\other
+ \catcode`\^^^=\other
+ \catcode`\^^_=\other
+ \catcode`\@=\other
+ \catcode`\^=\other
+ % It was suggested to define this as 7, which would allow ^^e4 etc.
+ % in xref tags, i.e., node names. But since ^^e4 notation isn't
+ % supported in the main text, it doesn't seem desirable. Furthermore,
+ % that is not enough: for node names that actually contain a ^
+ % character, we would end up writing a line like this: 'xrdef {'hat
+ % b-title}{'hat b} and \xrdef does a \csname...\endcsname on the first
+ % argument, and \hat is not an expandable control sequence. It could
+ % all be worked out, but why? Either we support ^^ or we don't.
+ %
+ % The other change necessary for this was to define \auxhat:
+ % \def\auxhat{\def^{'hat }}% extra space so ok if followed by letter
+ % and then to call \auxhat in \setq.
+ %
+ \catcode`\~=\other
+ \catcode`\[=\other
+ \catcode`\]=\other
+ \catcode`\"=\other
+ \catcode`\_=\other
+ \catcode`\|=\other
+ \catcode`\<=\other
+ \catcode`\>=\other
+ \catcode`\$=\other
+ \catcode`\#=\other
+ \catcode`\&=\other
+ \catcode`+=\other % avoid \+ for paranoia even though we've turned it off
+ % Make the characters 128-255 be printing characters
+ {%
+ \count 1=128
+ \def\loop{%
+ \catcode\count 1=\other
+ \advance\count 1 by 1
+ \ifnum \count 1<256 \loop \fi
+ }%
+ }%
+ % The aux file uses ' as the escape (for now).
+ % Turn off \ as an escape so we do not lose on
+ % entries which were dumped with control sequences in their names.
+ % For example, 'xrdef {$\leq $-fun}{page ...} made by @defun ^^
+ % Reference to such entries still does not work the way one would wish,
+ % but at least they do not bomb out when the aux file is read in.
+ \catcode`\{=1
+ \catcode`\}=2
+ \catcode`\%=\other
+ \catcode`\'=0
+ \catcode`\\=\other
+ %
+ \openin 1 \jobname.aux
+ \ifeof 1 \else
+ \closein 1
+ \input \jobname.aux
+ \global\havexrefstrue
+ \global\warnedobstrue
+ \fi
+ % Open the new aux file. TeX will close it automatically at exit.
+ \openout\auxfile=\jobname.aux
+\endgroup}
+
+
+% Footnotes.
+
+\newcount \footnoteno
+
+% The trailing space in the following definition for supereject is
+% vital for proper filling; pages come out unaligned when you do a
+% pagealignmacro call if that space before the closing brace is
+% removed. (Generally, numeric constants should always be followed by a
+% space to prevent strange expansion errors.)
+\def\supereject{\par\penalty -20000\footnoteno =0 }
+
+% @footnotestyle is meaningful for info output only.
+\let\footnotestyle=\comment
+
+\let\ptexfootnote=\footnote
+
+{\catcode `\@=11
+%
+% Auto-number footnotes. Otherwise like plain.
+\gdef\footnote{%
+ \global\advance\footnoteno by \@ne
+ \edef\thisfootno{$^{\the\footnoteno}$}%
+ %
+ % In case the footnote comes at the end of a sentence, preserve the
+ % extra spacing after we do the footnote number.
+ \let\@sf\empty
+ \ifhmode\edef\@sf{\spacefactor\the\spacefactor}\/\fi
+ %
+ % Remove inadvertent blank space before typesetting the footnote number.
+ \unskip
+ \thisfootno\@sf
+ \footnotezzz
+}%
+
+% Don't bother with the trickery in plain.tex to not require the
+% footnote text as a parameter. Our footnotes don't need to be so general.
+%
+% Oh yes, they do; otherwise, @ifset and anything else that uses
+% \parseargline fail inside footnotes because the tokens are fixed when
+% the footnote is read. --karl, 16nov96.
+%
+\long\gdef\footnotezzz{\insert\footins\bgroup
+ % We want to typeset this text as a normal paragraph, even if the
+ % footnote reference occurs in (for example) a display environment.
+ % So reset some parameters.
+ \interlinepenalty\interfootnotelinepenalty
+ \splittopskip\ht\strutbox % top baseline for broken footnotes
+ \splitmaxdepth\dp\strutbox
+ \floatingpenalty\@MM
+ \leftskip\z@skip
+ \rightskip\z@skip
+ \spaceskip\z@skip
+ \xspaceskip\z@skip
+ \parindent\defaultparindent
+ %
+ \smallfonts \rm
+ %
+ % Hang the footnote text off the number.
+ \hang
+ \textindent{\thisfootno}%
+ %
+ % Don't crash into the line above the footnote text. Since this
+ % expands into a box, it must come within the paragraph, lest it
+ % provide a place where TeX can split the footnote.
+ \footstrut
+ \futurelet\next\fo@t
+}
+\def\fo@t{\ifcat\bgroup\noexpand\next \let\next\f@@t
+ \else\let\next\f@t\fi \next}
+\def\f@@t{\bgroup\aftergroup\@foot\let\next}
+\def\f@t#1{#1\@foot}
+\def\@foot{\strut\par\egroup}
+
+}%end \catcode `\@=11
+
+% @| inserts a changebar to the left of the current line. It should
+% surround any changed text. This approach does *not* work if the
+% change spans more than two lines of output. To handle that, we would
+% have adopt a much more difficult approach (putting marks into the main
+% vertical list for the beginning and end of each change).
+%
+\def\|{%
+ % \vadjust can only be used in horizontal mode.
+ \leavevmode
+ %
+ % Append this vertical mode material after the current line in the output.
+ \vadjust{%
+ % We want to insert a rule with the height and depth of the current
+ % leading; that is exactly what \strutbox is supposed to record.
+ \vskip-\baselineskip
+ %
+ % \vadjust-items are inserted at the left edge of the type. So
+ % the \llap here moves out into the left-hand margin.
+ \llap{%
+ %
+ % For a thicker or thinner bar, change the `1pt'.
+ \vrule height\baselineskip width1pt
+ %
+ % This is the space between the bar and the text.
+ \hskip 12pt
+ }%
+ }%
+}
+
+% For a final copy, take out the rectangles
+% that mark overfull boxes (in case you have decided
+% that the text looks ok even though it passes the margin).
+%
+\def\finalout{\overfullrule=0pt}
+
+% @image. We use the macros from epsf.tex to support this.
+% If epsf.tex is not installed and @image is used, we complain.
+%
+% Check for and read epsf.tex up front. If we read it only at @image
+% time, we might be inside a group, and then its definitions would get
+% undone and the next image would fail.
+\openin 1 = epsf.tex
+\ifeof 1 \else
+ \closein 1
+ % Do not bother showing banner with post-v2.7 epsf.tex (available in
+ % doc/epsf.tex until it shows up on ctan).
+ \def\epsfannounce{\toks0 = }%
+ \input epsf.tex
+\fi
+%
+% We will only complain once about lack of epsf.tex.
+\newif\ifwarnednoepsf
+\newhelp\noepsfhelp{epsf.tex must be installed for images to
+ work. It is also included in the Texinfo distribution, or you can get
+ it from ftp://tug.org/tex/epsf.tex.}
+%
+\def\image#1{%
+ \ifx\epsfbox\undefined
+ \ifwarnednoepsf \else
+ \errhelp = \noepsfhelp
+ \errmessage{epsf.tex not found, images will be ignored}%
+ \global\warnednoepsftrue
+ \fi
+ \else
+ \imagexxx #1,,,\finish
+ \fi
+}
+%
+% Arguments to @image:
+% #1 is (mandatory) image filename; we tack on .eps extension.
+% #2 is (optional) width, #3 is (optional) height.
+% #4 is (ignored optional) html alt text.
+% #5 is (ignored optional) extension.
+% #6 is just the usual extra ignored arg for parsing this stuff.
+\def\imagexxx#1,#2,#3,#4,#5,#6\finish{%
+ \ifpdf
+ \centerline{\dopdfimage{#1}{#2}{#3}}%
+ \else
+ % \epsfbox itself resets \epsf?size at each figure.
+ \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \epsfxsize=#2\relax \fi
+ \setbox0 = \hbox{\ignorespaces #3}\ifdim\wd0 > 0pt \epsfysize=#3\relax \fi
+ \begingroup
+ \catcode`\^^M = 5 % in case we're inside an example
+ \normalturnoffactive % allow _ et al. in names
+ % If the image is by itself, center it.
+ \ifvmode
+ \nobreak\bigskip
+ % Usually we'll have text after the image which will insert
+ % \parskip glue, so insert it here too to equalize the space
+ % above and below.
+ \nobreak\vskip\parskip
+ \nobreak
+ \centerline{\epsfbox{#1.eps}}%
+ \bigbreak
+ \else
+ % In the middle of a paragraph, no extra space.
+ \epsfbox{#1.eps}%
+ \fi
+ \endgroup
+ \fi
+}
+
+
+\message{localization,}
+% and i18n.
+
+% @documentlanguage is usually given very early, just after
+% @setfilename. If done too late, it may not override everything
+% properly. Single argument is the language abbreviation.
+% It would be nice if we could set up a hyphenation file here.
+%
+\def\documentlanguage{\parsearg\dodocumentlanguage}
+\def\dodocumentlanguage#1{%
+ \tex % read txi-??.tex file in plain TeX.
+ % Read the file if it exists.
+ \openin 1 txi-#1.tex
+ \ifeof1
+ \errhelp = \nolanghelp
+ \errmessage{Cannot read language file txi-#1.tex}%
+ \let\temp = \relax
+ \else
+ \def\temp{\input txi-#1.tex }%
+ \fi
+ \temp
+ \endgroup
+}
+\newhelp\nolanghelp{The given language definition file cannot be found or
+is empty. Maybe you need to install it? In the current directory
+should work if nowhere else does.}
+
+
+% @documentencoding should change something in TeX eventually, most
+% likely, but for now just recognize it.
+\let\documentencoding = \comment
+
+
+% Page size parameters.
+%
+\newdimen\defaultparindent \defaultparindent = 15pt
+
+\chapheadingskip = 15pt plus 4pt minus 2pt
+\secheadingskip = 12pt plus 3pt minus 2pt
+\subsecheadingskip = 9pt plus 2pt minus 2pt
+
+% Prevent underfull vbox error messages.
+\vbadness = 10000
+
+% Don't be so finicky about underfull hboxes, either.
+\hbadness = 2000
+
+% Following George Bush, just get rid of widows and orphans.
+\widowpenalty=10000
+\clubpenalty=10000
+
+% Use TeX 3.0's \emergencystretch to help line breaking, but if we're
+% using an old version of TeX, don't do anything. We want the amount of
+% stretch added to depend on the line length, hence the dependence on
+% \hsize. We call this whenever the paper size is set.
+%
+\def\setemergencystretch{%
+ \ifx\emergencystretch\thisisundefined
+ % Allow us to assign to \emergencystretch anyway.
+ \def\emergencystretch{\dimen0}%
+ \else
+ \emergencystretch = .15\hsize
+ \fi
+}
+
+% Parameters in order: 1) textheight; 2) textwidth; 3) voffset;
+% 4) hoffset; 5) binding offset; 6) topskip. We also call
+% \setleading{\textleading}, so the caller should define \textleading.
+% The caller should also set \parskip.
+%
+\def\internalpagesizes#1#2#3#4#5#6{%
+ \voffset = #3\relax
+ \topskip = #6\relax
+ \splittopskip = \topskip
+ %
+ \vsize = #1\relax
+ \advance\vsize by \topskip
+ \outervsize = \vsize
+ \advance\outervsize by 2\topandbottommargin
+ \pageheight = \vsize
+ %
+ \hsize = #2\relax
+ \outerhsize = \hsize
+ \advance\outerhsize by 0.5in
+ \pagewidth = \hsize
+ %
+ \normaloffset = #4\relax
+ \bindingoffset = #5\relax
+ %
+ \setleading{\textleading}
+ %
+ \parindent = \defaultparindent
+ \setemergencystretch
+}
+
+% Use `small' versions.
+%
+\def\smallenvironments{%
+ \let\smalldisplay = \smalldisplayx
+ \let\smallexample = \smalllispx
+ \let\smallformat = \smallformatx
+ \let\smalllisp = \smalllispx
+}
+
+% @letterpaper (the default).
+\def\letterpaper{{\globaldefs = 1
+ \parskip = 3pt plus 2pt minus 1pt
+ \textleading = 13.2pt
+ %
+ % If page is nothing but text, make it come out even.
+ \internalpagesizes{46\baselineskip}{6in}{\voffset}{.25in}{\bindingoffset}{36pt}%
+}}
+
+% Use @smallbook to reset parameters for 7x9.5 (or so) format.
+\def\smallbook{{\globaldefs = 1
+ \parskip = 2pt plus 1pt
+ \textleading = 12pt
+ %
+ \internalpagesizes{7.5in}{5.in}{\voffset}{.25in}{\bindingoffset}{16pt}%
+ %
+ \lispnarrowing = 0.3in
+ \tolerance = 700
+ \hfuzz = 1pt
+ \contentsrightmargin = 0pt
+ \deftypemargin = 0pt
+ \defbodyindent = .5cm
+ \smallenvironments
+}}
+
+% Use @afourpaper to print on European A4 paper.
+\def\afourpaper{{\globaldefs = 1
+ \parskip = 3pt plus 2pt minus 1pt
+ \textleading = 12pt
+ %
+ \internalpagesizes{53\baselineskip}{160mm}{\voffset}{4mm}{\bindingoffset}{44pt}%
+ %
+ \tolerance = 700
+ \hfuzz = 1pt
+}}
+
+% Use @afivepaper to print on European A5 paper.
+% From romildo@urano.iceb.ufop.br, 2 July 2000.
+% He also recommends making @example and @lisp be small.
+\def\afivepaper{{\globaldefs = 1
+ \parskip = 2pt plus 1pt minus 0.1pt
+ \textleading = 12.5pt
+ %
+ \internalpagesizes{166mm}{120mm}{\voffset}{-8mm}{\bindingoffset}{8pt}%
+ %
+ \lispnarrowing = 0.2in
+ \tolerance = 800
+ \hfuzz = 1.2pt
+ \contentsrightmargin = 0mm
+ \deftypemargin = 0pt
+ \defbodyindent = 2mm
+ \tableindent = 12mm
+ %
+ \smallenvironments
+}}
+
+% A specific text layout, 24x15cm overall, intended for A4 paper. Top margin
+% 29mm, hence bottom margin 28mm, nominal side margin 3cm.
+\def\afourlatex{{\globaldefs = 1
+ \textleading = 13.6pt
+ %
+ \afourpaper
+ \internalpagesizes{237mm}{150mm}{3.6mm}{3.6mm}{3mm}{7mm}%
+}}
+
+% Use @afourwide to print on European A4 paper in wide format.
+\def\afourwide{%
+ \afourpaper
+ \internalpagesizes{6.5in}{9.5in}{\hoffset}{\normaloffset}{\bindingoffset}{7mm}%
+}
+
+% @pagesizes TEXTHEIGHT[,TEXTWIDTH]
+% Perhaps we should allow setting the margins, \topskip, \parskip,
+% and/or leading, also. Or perhaps we should compute them somehow.
+%
+\def\pagesizes{\parsearg\pagesizesxxx}
+\def\pagesizesxxx#1{\pagesizesyyy #1,,\finish}
+\def\pagesizesyyy#1,#2,#3\finish{{%
+ \setbox0 = \hbox{\ignorespaces #2}\ifdim\wd0 > 0pt \hsize=#2\relax \fi
+ \globaldefs = 1
+ %
+ \parskip = 3pt plus 2pt minus 1pt
+ \setleading{\textleading}%
+ %
+ \internalpagesizes{#1}{\hsize}{\voffset}{\normaloffset}{\bindingoffset}{44pt}%
+}}
+
+% Set default to letter.
+%
+\letterpaper
+
+
+\message{and turning on texinfo input format.}
+
+% Define macros to output various characters with catcode for normal text.
+\catcode`\"=\other
+\catcode`\~=\other
+\catcode`\^=\other
+\catcode`\_=\other
+\catcode`\|=\other
+\catcode`\<=\other
+\catcode`\>=\other
+\catcode`\+=\other
+\catcode`\$=\other
+\def\normaldoublequote{"}
+\def\normaltilde{~}
+\def\normalcaret{^}
+\def\normalunderscore{_}
+\def\normalverticalbar{|}
+\def\normalless{<}
+\def\normalgreater{>}
+\def\normalplus{+}
+\def\normaldollar{$}
+
+% This macro is used to make a character print one way in ttfont
+% where it can probably just be output, and another way in other fonts,
+% where something hairier probably needs to be done.
+%
+% #1 is what to print if we are indeed using \tt; #2 is what to print
+% otherwise. Since all the Computer Modern typewriter fonts have zero
+% interword stretch (and shrink), and it is reasonable to expect all
+% typewriter fonts to have this, we can check that font parameter.
+%
+\def\ifusingtt#1#2{\ifdim \fontdimen3\font=0pt #1\else #2\fi}
+
+% Same as above, but check for italic font. Actually this also catches
+% non-italic slanted fonts since it is impossible to distinguish them from
+% italic fonts. But since this is only used by $ and it uses \sl anyway
+% this is not a problem.
+\def\ifusingit#1#2{\ifdim \fontdimen1\font>0pt #1\else #2\fi}
+
+% Turn off all special characters except @
+% (and those which the user can use as if they were ordinary).
+% Most of these we simply print from the \tt font, but for some, we can
+% use math or other variants that look better in normal text.
+
+\catcode`\"=\active
+\def\activedoublequote{{\tt\char34}}
+\let"=\activedoublequote
+\catcode`\~=\active
+\def~{{\tt\char126}}
+\chardef\hat=`\^
+\catcode`\^=\active
+\def^{{\tt \hat}}
+
+\catcode`\_=\active
+\def_{\ifusingtt\normalunderscore\_}
+% Subroutine for the previous macro.
+\def\_{\leavevmode \kern.06em \vbox{\hrule width.3em height.1ex}}
+
+\catcode`\|=\active
+\def|{{\tt\char124}}
+\chardef \less=`\<
+\catcode`\<=\active
+\def<{{\tt \less}}
+\chardef \gtr=`\>
+\catcode`\>=\active
+\def>{{\tt \gtr}}
+\catcode`\+=\active
+\def+{{\tt \char 43}}
+\catcode`\$=\active
+\def${\ifusingit{{\sl\$}}\normaldollar}
+%\catcode 27=\active
+%\def^^[{$\diamondsuit$}
+
+% Set up an active definition for =, but don't enable it most of the time.
+{\catcode`\==\active
+\global\def={{\tt \char 61}}}
+
+\catcode`+=\active
+\catcode`\_=\active
+
+% If a .fmt file is being used, characters that might appear in a file
+% name cannot be active until we have parsed the command line.
+% So turn them off again, and have \everyjob (or @setfilename) turn them on.
+% \otherifyactive is called near the end of this file.
+\def\otherifyactive{\catcode`+=\other \catcode`\_=\other}
+
+\catcode`\@=0
+
+% \rawbackslashxx output one backslash character in current font
+\global\chardef\rawbackslashxx=`\\
+%{\catcode`\\=\other
+%@gdef@rawbackslashxx{\}}
+
+% \rawbackslash redefines \ as input to do \rawbackslashxx.
+{\catcode`\\=\active
+@gdef@rawbackslash{@let\=@rawbackslashxx }}
+
+% \normalbackslash outputs one backslash in fixed width font.
+\def\normalbackslash{{\tt\rawbackslashxx}}
+
+% \catcode 17=0 % Define control-q
+\catcode`\\=\active
+
+% Used sometimes to turn off (effectively) the active characters
+% even after parsing them.
+@def@turnoffactive{@let"=@normaldoublequote
+@let\=@realbackslash
+@let~=@normaltilde
+@let^=@normalcaret
+@let_=@normalunderscore
+@let|=@normalverticalbar
+@let<=@normalless
+@let>=@normalgreater
+@let+=@normalplus
+@let$=@normaldollar}
+
+@def@normalturnoffactive{@let"=@normaldoublequote
+@let\=@normalbackslash
+@let~=@normaltilde
+@let^=@normalcaret
+@let_=@normalunderscore
+@let|=@normalverticalbar
+@let<=@normalless
+@let>=@normalgreater
+@let+=@normalplus
+@let$=@normaldollar}
+
+% Make _ and + \other characters, temporarily.
+% This is canceled by @fixbackslash.
+@otherifyactive
+
+% If a .fmt file is being used, we don't want the `\input texinfo' to show up.
+% That is what \eatinput is for; after that, the `\' should revert to printing
+% a backslash.
+%
+@gdef@eatinput input texinfo{@fixbackslash}
+@global@let\ = @eatinput
+
+% On the other hand, perhaps the file did not have a `\input texinfo'. Then
+% the first `\{ in the file would cause an error. This macro tries to fix
+% that, assuming it is called before the first `\' could plausibly occur.
+% Also back turn on active characters that might appear in the input
+% file name, in case not using a pre-dumped format.
+%
+@gdef@fixbackslash{%
+ @ifx\@eatinput @let\ = @normalbackslash @fi
+ @catcode`+=@active
+ @catcode`@_=@active
+}
+
+% Say @foo, not \foo, in error messages.
+@escapechar = `@@
+
+% These look ok in all fonts, so just make them not special.
+@catcode`@& = @other
+@catcode`@# = @other
+@catcode`@% = @other
+
+@c Set initial fonts.
+@textfonts
+@rm
+
+
+@c Local variables:
+@c eval: (add-hook 'write-file-hooks 'time-stamp)
+@c page-delimiter: "^\\\\message"
+@c time-stamp-start: "def\\\\texinfoversion{"
+@c time-stamp-format: "%:y-%02m-%02d.%02H"
+@c time-stamp-end: "}"
+@c End:
--- /dev/null
+/* trees.c -- output deflated data using Huffman coding
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+/*
+ * PURPOSE
+ *
+ * Encode various sets of source values using variable-length
+ * binary code trees.
+ *
+ * DISCUSSION
+ *
+ * The PKZIP "deflation" process uses several Huffman trees. The more
+ * common source values are represented by shorter bit sequences.
+ *
+ * Each code tree is stored in the ZIP file in a compressed form
+ * which is itself a Huffman encoding of the lengths of
+ * all the code strings (in ascending order by source values).
+ * The actual code strings are reconstructed from the lengths in
+ * the UNZIP process, as described in the "application note"
+ * (APPNOTE.TXT) distributed as part of PKWARE's PKZIP program.
+ *
+ * REFERENCES
+ *
+ * Lynch, Thomas J.
+ * Data Compression: Techniques and Applications, pp. 53-55.
+ * Lifetime Learning Publications, 1985. ISBN 0-534-03418-7.
+ *
+ * Storer, James A.
+ * Data Compression: Methods and Theory, pp. 49-50.
+ * Computer Science Press, 1988. ISBN 0-7167-8156-5.
+ *
+ * Sedgewick, R.
+ * Algorithms, p290.
+ * Addison-Wesley, 1983. ISBN 0-201-06672-6.
+ *
+ * INTERFACE
+ *
+ * void ct_init (ush *attr, int *methodp)
+ * Allocate the match buffer, initialize the various tables and save
+ * the location of the internal file attribute (ascii/binary) and
+ * method (DEFLATE/STORE)
+ *
+ * void ct_tally (int dist, int lc);
+ * Save the match info and tally the frequency counts.
+ *
+ * off_t flush_block (char *buf, ulg stored_len, int eof)
+ * Determine the best encoding for the current block: dynamic trees,
+ * static trees or store, and output the encoded block to the zip
+ * file. Returns the total compressed length for the file so far.
+ *
+ */
+
+#include <config.h>
+#include <ctype.h>
+
+#include "tailor.h"
+#include "gzip.h"
+
+#ifdef RCSID
+static char rcsid[] = "$Id: trees.c,v 0.12 1993/06/10 13:27:54 jloup Exp $";
+#endif
+
+/* ===========================================================================
+ * Constants
+ */
+
+#define MAX_BITS 15
+/* All codes must not exceed MAX_BITS bits */
+
+#define MAX_BL_BITS 7
+/* Bit length codes must not exceed MAX_BL_BITS bits */
+
+#define LENGTH_CODES 29
+/* number of length codes, not counting the special END_BLOCK code */
+
+#define LITERALS 256
+/* number of literal bytes 0..255 */
+
+#define END_BLOCK 256
+/* end of block literal code */
+
+#define L_CODES (LITERALS+1+LENGTH_CODES)
+/* number of Literal or Length codes, including the END_BLOCK code */
+
+#define D_CODES 30
+/* number of distance codes */
+
+#define BL_CODES 19
+/* number of codes used to transfer the bit lengths */
+
+
+local int near extra_lbits[LENGTH_CODES] /* extra bits for each length code */
+ = {0,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,0};
+
+local int near extra_dbits[D_CODES] /* extra bits for each distance code */
+ = {0,0,0,0,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13};
+
+local int near extra_blbits[BL_CODES]/* extra bits for each bit length code */
+ = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,3,7};
+
+#define STORED_BLOCK 0
+#define STATIC_TREES 1
+#define DYN_TREES 2
+/* The three kinds of block type */
+
+#ifndef LIT_BUFSIZE
+# ifdef SMALL_MEM
+# define LIT_BUFSIZE 0x2000
+# else
+# ifdef MEDIUM_MEM
+# define LIT_BUFSIZE 0x4000
+# else
+# define LIT_BUFSIZE 0x8000
+# endif
+# endif
+#endif
+#ifndef DIST_BUFSIZE
+# define DIST_BUFSIZE LIT_BUFSIZE
+#endif
+/* Sizes of match buffers for literals/lengths and distances. There are
+ * 4 reasons for limiting LIT_BUFSIZE to 64K:
+ * - frequencies can be kept in 16 bit counters
+ * - if compression is not successful for the first block, all input data is
+ * still in the window so we can still emit a stored block even when input
+ * comes from standard input. (This can also be done for all blocks if
+ * LIT_BUFSIZE is not greater than 32K.)
+ * - if compression is not successful for a file smaller than 64K, we can
+ * even emit a stored file instead of a stored block (saving 5 bytes).
+ * - creating new Huffman trees less frequently may not provide fast
+ * adaptation to changes in the input data statistics. (Take for
+ * example a binary file with poorly compressible code followed by
+ * a highly compressible string table.) Smaller buffer sizes give
+ * fast adaptation but have of course the overhead of transmitting trees
+ * more frequently.
+ * - I can't count above 4
+ * The current code is general and allows DIST_BUFSIZE < LIT_BUFSIZE (to save
+ * memory at the expense of compression). Some optimizations would be possible
+ * if we rely on DIST_BUFSIZE == LIT_BUFSIZE.
+ */
+#if LIT_BUFSIZE > INBUFSIZ
+ error cannot overlay l_buf and inbuf
+#endif
+
+#define REP_3_6 16
+/* repeat previous bit length 3-6 times (2 bits of repeat count) */
+
+#define REPZ_3_10 17
+/* repeat a zero length 3-10 times (3 bits of repeat count) */
+
+#define REPZ_11_138 18
+/* repeat a zero length 11-138 times (7 bits of repeat count) */
+
+/* ===========================================================================
+ * Local data
+ */
+
+/* Data structure describing a single value and its code string. */
+typedef struct ct_data {
+ union {
+ ush freq; /* frequency count */
+ ush code; /* bit string */
+ } fc;
+ union {
+ ush dad; /* father node in Huffman tree */
+ ush len; /* length of bit string */
+ } dl;
+} ct_data;
+
+#define Freq fc.freq
+#define Code fc.code
+#define Dad dl.dad
+#define Len dl.len
+
+#define HEAP_SIZE (2*L_CODES+1)
+/* maximum heap size */
+
+local ct_data near dyn_ltree[HEAP_SIZE]; /* literal and length tree */
+local ct_data near dyn_dtree[2*D_CODES+1]; /* distance tree */
+
+local ct_data near static_ltree[L_CODES+2];
+/* The static literal tree. Since the bit lengths are imposed, there is no
+ * need for the L_CODES extra codes used during heap construction. However
+ * The codes 286 and 287 are needed to build a canonical tree (see ct_init
+ * below).
+ */
+
+local ct_data near static_dtree[D_CODES];
+/* The static distance tree. (Actually a trivial tree since all codes use
+ * 5 bits.)
+ */
+
+local ct_data near bl_tree[2*BL_CODES+1];
+/* Huffman tree for the bit lengths */
+
+typedef struct tree_desc {
+ ct_data near *dyn_tree; /* the dynamic tree */
+ ct_data near *static_tree; /* corresponding static tree or NULL */
+ int near *extra_bits; /* extra bits for each code or NULL */
+ int extra_base; /* base index for extra_bits */
+ int elems; /* max number of elements in the tree */
+ int max_length; /* max bit length for the codes */
+ int max_code; /* largest code with non zero frequency */
+} tree_desc;
+
+local tree_desc near l_desc =
+{dyn_ltree, static_ltree, extra_lbits, LITERALS+1, L_CODES, MAX_BITS, 0};
+
+local tree_desc near d_desc =
+{dyn_dtree, static_dtree, extra_dbits, 0, D_CODES, MAX_BITS, 0};
+
+local tree_desc near bl_desc =
+{bl_tree, (ct_data near *)0, extra_blbits, 0, BL_CODES, MAX_BL_BITS, 0};
+
+
+local ush near bl_count[MAX_BITS+1];
+/* number of codes at each bit length for an optimal tree */
+
+local uch near bl_order[BL_CODES]
+ = {16,17,18,0,8,7,9,6,10,5,11,4,12,3,13,2,14,1,15};
+/* The lengths of the bit length codes are sent in order of decreasing
+ * probability, to avoid transmitting the lengths for unused bit length codes.
+ */
+
+local int near heap[2*L_CODES+1]; /* heap used to build the Huffman trees */
+local int heap_len; /* number of elements in the heap */
+local int heap_max; /* element of largest frequency */
+/* The sons of heap[n] are heap[2*n] and heap[2*n+1]. heap[0] is not used.
+ * The same heap array is used to build all trees.
+ */
+
+local uch near depth[2*L_CODES+1];
+/* Depth of each subtree used as tie breaker for trees of equal frequency */
+
+local uch length_code[MAX_MATCH-MIN_MATCH+1];
+/* length code for each normalized match length (0 == MIN_MATCH) */
+
+local uch dist_code[512];
+/* distance codes. The first 256 values correspond to the distances
+ * 3 .. 258, the last 256 values correspond to the top 8 bits of
+ * the 15 bit distances.
+ */
+
+local int near base_length[LENGTH_CODES];
+/* First normalized length for each code (0 = MIN_MATCH) */
+
+local int near base_dist[D_CODES];
+/* First normalized distance for each code (0 = distance of 1) */
+
+#define l_buf inbuf
+/* DECLARE(uch, l_buf, LIT_BUFSIZE); buffer for literals or lengths */
+
+/* DECLARE(ush, d_buf, DIST_BUFSIZE); buffer for distances */
+
+local uch near flag_buf[(LIT_BUFSIZE/8)];
+/* flag_buf is a bit array distinguishing literals from lengths in
+ * l_buf, thus indicating the presence or absence of a distance.
+ */
+
+local unsigned last_lit; /* running index in l_buf */
+local unsigned last_dist; /* running index in d_buf */
+local unsigned last_flags; /* running index in flag_buf */
+local uch flags; /* current flags not yet saved in flag_buf */
+local uch flag_bit; /* current bit used in flags */
+/* bits are filled in flags starting at bit 0 (least significant).
+ * Note: these flags are overkill in the current code since we don't
+ * take advantage of DIST_BUFSIZE == LIT_BUFSIZE.
+ */
+
+local ulg opt_len; /* bit length of current block with optimal trees */
+local ulg static_len; /* bit length of current block with static trees */
+
+local off_t compressed_len; /* total bit length of compressed file */
+
+local off_t input_len; /* total byte length of input file */
+/* input_len is for debugging only since we can get it by other means. */
+
+ush *file_type; /* pointer to UNKNOWN, BINARY or ASCII */
+int *file_method; /* pointer to DEFLATE or STORE */
+
+#ifdef DEBUG
+extern off_t bits_sent; /* bit length of the compressed data */
+#endif
+
+extern long block_start; /* window offset of current block */
+extern unsigned near strstart; /* window offset of current string */
+
+/* ===========================================================================
+ * Local (static) routines in this file.
+ */
+
+local void init_block OF((void));
+local void pqdownheap OF((ct_data near *tree, int k));
+local void gen_bitlen OF((tree_desc near *desc));
+local void gen_codes OF((ct_data near *tree, int max_code));
+local void build_tree OF((tree_desc near *desc));
+local void scan_tree OF((ct_data near *tree, int max_code));
+local void send_tree OF((ct_data near *tree, int max_code));
+local int build_bl_tree OF((void));
+local void send_all_trees OF((int lcodes, int dcodes, int blcodes));
+local void compress_block OF((ct_data near *ltree, ct_data near *dtree));
+local void set_file_type OF((void));
+
+
+#ifndef DEBUG
+# define send_code(c, tree) send_bits(tree[c].Code, tree[c].Len)
+ /* Send a code of the given tree. c and tree must not have side effects */
+
+#else /* DEBUG */
+# define send_code(c, tree) \
+ { if (verbose>1) fprintf(stderr,"\ncd %3d ",(c)); \
+ send_bits(tree[c].Code, tree[c].Len); }
+#endif
+
+#define d_code(dist) \
+ ((dist) < 256 ? dist_code[dist] : dist_code[256+((dist)>>7)])
+/* Mapping from a distance to a distance code. dist is the distance - 1 and
+ * must not have side effects. dist_code[256] and dist_code[257] are never
+ * used.
+ */
+
+#define MAX(a,b) (a >= b ? a : b)
+/* the arguments must not have side effects */
+
+/* ===========================================================================
+ * Allocate the match buffer, initialize the various tables and save the
+ * location of the internal file attribute (ascii/binary) and method
+ * (DEFLATE/STORE).
+ */
+void ct_init(attr, methodp)
+ ush *attr; /* pointer to internal file attribute */
+ int *methodp; /* pointer to compression method */
+{
+ int n; /* iterates over tree elements */
+ int bits; /* bit counter */
+ int length; /* length value */
+ int code; /* code value */
+ int dist; /* distance index */
+
+ file_type = attr;
+ file_method = methodp;
+ compressed_len = input_len = 0L;
+
+ if (static_dtree[0].Len != 0) return; /* ct_init already called */
+
+ /* Initialize the mapping length (0..255) -> length code (0..28) */
+ length = 0;
+ for (code = 0; code < LENGTH_CODES-1; code++) {
+ base_length[code] = length;
+ for (n = 0; n < (1<<extra_lbits[code]); n++) {
+ length_code[length++] = (uch)code;
+ }
+ }
+ Assert (length == 256, "ct_init: length != 256");
+ /* Note that the length 255 (match length 258) can be represented
+ * in two different ways: code 284 + 5 bits or code 285, so we
+ * overwrite length_code[255] to use the best encoding:
+ */
+ length_code[length-1] = (uch)code;
+
+ /* Initialize the mapping dist (0..32K) -> dist code (0..29) */
+ dist = 0;
+ for (code = 0 ; code < 16; code++) {
+ base_dist[code] = dist;
+ for (n = 0; n < (1<<extra_dbits[code]); n++) {
+ dist_code[dist++] = (uch)code;
+ }
+ }
+ Assert (dist == 256, "ct_init: dist != 256");
+ dist >>= 7; /* from now on, all distances are divided by 128 */
+ for ( ; code < D_CODES; code++) {
+ base_dist[code] = dist << 7;
+ for (n = 0; n < (1<<(extra_dbits[code]-7)); n++) {
+ dist_code[256 + dist++] = (uch)code;
+ }
+ }
+ Assert (dist == 256, "ct_init: 256+dist != 512");
+
+ /* Construct the codes of the static literal tree */
+ for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
+ n = 0;
+ while (n <= 143) static_ltree[n++].Len = 8, bl_count[8]++;
+ while (n <= 255) static_ltree[n++].Len = 9, bl_count[9]++;
+ while (n <= 279) static_ltree[n++].Len = 7, bl_count[7]++;
+ while (n <= 287) static_ltree[n++].Len = 8, bl_count[8]++;
+ /* Codes 286 and 287 do not exist, but we must include them in the
+ * tree construction to get a canonical Huffman tree (longest code
+ * all ones)
+ */
+ gen_codes((ct_data near *)static_ltree, L_CODES+1);
+
+ /* The static distance tree is trivial: */
+ for (n = 0; n < D_CODES; n++) {
+ static_dtree[n].Len = 5;
+ static_dtree[n].Code = bi_reverse(n, 5);
+ }
+
+ /* Initialize the first block of the first file: */
+ init_block();
+}
+
+/* ===========================================================================
+ * Initialize a new block.
+ */
+local void init_block()
+{
+ int n; /* iterates over tree elements */
+
+ /* Initialize the trees. */
+ for (n = 0; n < L_CODES; n++) dyn_ltree[n].Freq = 0;
+ for (n = 0; n < D_CODES; n++) dyn_dtree[n].Freq = 0;
+ for (n = 0; n < BL_CODES; n++) bl_tree[n].Freq = 0;
+
+ dyn_ltree[END_BLOCK].Freq = 1;
+ opt_len = static_len = 0L;
+ last_lit = last_dist = last_flags = 0;
+ flags = 0; flag_bit = 1;
+}
+
+#define SMALLEST 1
+/* Index within the heap array of least frequent node in the Huffman tree */
+
+
+/* ===========================================================================
+ * Remove the smallest element from the heap and recreate the heap with
+ * one less element. Updates heap and heap_len.
+ */
+#define pqremove(tree, top) \
+{\
+ top = heap[SMALLEST]; \
+ heap[SMALLEST] = heap[heap_len--]; \
+ pqdownheap(tree, SMALLEST); \
+}
+
+/* ===========================================================================
+ * Compares to subtrees, using the tree depth as tie breaker when
+ * the subtrees have equal frequency. This minimizes the worst case length.
+ */
+#define smaller(tree, n, m) \
+ (tree[n].Freq < tree[m].Freq || \
+ (tree[n].Freq == tree[m].Freq && depth[n] <= depth[m]))
+
+/* ===========================================================================
+ * Restore the heap property by moving down the tree starting at node k,
+ * exchanging a node with the smallest of its two sons if necessary, stopping
+ * when the heap property is re-established (each father smaller than its
+ * two sons).
+ */
+local void pqdownheap(tree, k)
+ ct_data near *tree; /* the tree to restore */
+ int k; /* node to move down */
+{
+ int v = heap[k];
+ int j = k << 1; /* left son of k */
+ while (j <= heap_len) {
+ /* Set j to the smallest of the two sons: */
+ if (j < heap_len && smaller(tree, heap[j+1], heap[j])) j++;
+
+ /* Exit if v is smaller than both sons */
+ if (smaller(tree, v, heap[j])) break;
+
+ /* Exchange v with the smallest son */
+ heap[k] = heap[j]; k = j;
+
+ /* And continue down the tree, setting j to the left son of k */
+ j <<= 1;
+ }
+ heap[k] = v;
+}
+
+/* ===========================================================================
+ * Compute the optimal bit lengths for a tree and update the total bit length
+ * for the current block.
+ * IN assertion: the fields freq and dad are set, heap[heap_max] and
+ * above are the tree nodes sorted by increasing frequency.
+ * OUT assertions: the field len is set to the optimal bit length, the
+ * array bl_count contains the frequencies for each bit length.
+ * The length opt_len is updated; static_len is also updated if stree is
+ * not null.
+ */
+local void gen_bitlen(desc)
+ tree_desc near *desc; /* the tree descriptor */
+{
+ ct_data near *tree = desc->dyn_tree;
+ int near *extra = desc->extra_bits;
+ int base = desc->extra_base;
+ int max_code = desc->max_code;
+ int max_length = desc->max_length;
+ ct_data near *stree = desc->static_tree;
+ int h; /* heap index */
+ int n, m; /* iterate over the tree elements */
+ int bits; /* bit length */
+ int xbits; /* extra bits */
+ ush f; /* frequency */
+ int overflow = 0; /* number of elements with bit length too large */
+
+ for (bits = 0; bits <= MAX_BITS; bits++) bl_count[bits] = 0;
+
+ /* In a first pass, compute the optimal bit lengths (which may
+ * overflow in the case of the bit length tree).
+ */
+ tree[heap[heap_max]].Len = 0; /* root of the heap */
+
+ for (h = heap_max+1; h < HEAP_SIZE; h++) {
+ n = heap[h];
+ bits = tree[tree[n].Dad].Len + 1;
+ if (bits > max_length) bits = max_length, overflow++;
+ tree[n].Len = (ush)bits;
+ /* We overwrite tree[n].Dad which is no longer needed */
+
+ if (n > max_code) continue; /* not a leaf node */
+
+ bl_count[bits]++;
+ xbits = 0;
+ if (n >= base) xbits = extra[n-base];
+ f = tree[n].Freq;
+ opt_len += (ulg)f * (bits + xbits);
+ if (stree) static_len += (ulg)f * (stree[n].Len + xbits);
+ }
+ if (overflow == 0) return;
+
+ Trace((stderr,"\nbit length overflow\n"));
+ /* This happens for example on obj2 and pic of the Calgary corpus */
+
+ /* Find the first bit length which could increase: */
+ do {
+ bits = max_length-1;
+ while (bl_count[bits] == 0) bits--;
+ bl_count[bits]--; /* move one leaf down the tree */
+ bl_count[bits+1] += 2; /* move one overflow item as its brother */
+ bl_count[max_length]--;
+ /* The brother of the overflow item also moves one step up,
+ * but this does not affect bl_count[max_length]
+ */
+ overflow -= 2;
+ } while (overflow > 0);
+
+ /* Now recompute all bit lengths, scanning in increasing frequency.
+ * h is still equal to HEAP_SIZE. (It is simpler to reconstruct all
+ * lengths instead of fixing only the wrong ones. This idea is taken
+ * from 'ar' written by Haruhiko Okumura.)
+ */
+ for (bits = max_length; bits != 0; bits--) {
+ n = bl_count[bits];
+ while (n != 0) {
+ m = heap[--h];
+ if (m > max_code) continue;
+ if (tree[m].Len != (unsigned) bits) {
+ Trace((stderr,"code %d bits %d->%d\n", m, tree[m].Len, bits));
+ opt_len += ((long)bits-(long)tree[m].Len)*(long)tree[m].Freq;
+ tree[m].Len = (ush)bits;
+ }
+ n--;
+ }
+ }
+}
+
+/* ===========================================================================
+ * Generate the codes for a given tree and bit counts (which need not be
+ * optimal).
+ * IN assertion: the array bl_count contains the bit length statistics for
+ * the given tree and the field len is set for all tree elements.
+ * OUT assertion: the field code is set for all tree elements of non
+ * zero code length.
+ */
+local void gen_codes (tree, max_code)
+ ct_data near *tree; /* the tree to decorate */
+ int max_code; /* largest code with non zero frequency */
+{
+ ush next_code[MAX_BITS+1]; /* next code value for each bit length */
+ ush code = 0; /* running code value */
+ int bits; /* bit index */
+ int n; /* code index */
+
+ /* The distribution counts are first used to generate the code values
+ * without bit reversal.
+ */
+ for (bits = 1; bits <= MAX_BITS; bits++) {
+ next_code[bits] = code = (code + bl_count[bits-1]) << 1;
+ }
+ /* Check that the bit counts in bl_count are consistent. The last code
+ * must be all ones.
+ */
+ Assert (code + bl_count[MAX_BITS]-1 == (1<<MAX_BITS)-1,
+ "inconsistent bit counts");
+ Tracev((stderr,"\ngen_codes: max_code %d ", max_code));
+
+ for (n = 0; n <= max_code; n++) {
+ int len = tree[n].Len;
+ if (len == 0) continue;
+ /* Now reverse the bits */
+ tree[n].Code = bi_reverse(next_code[len]++, len);
+
+ Tracec(tree != static_ltree, (stderr,"\nn %3d %c l %2d c %4x (%x) ",
+ n, (isgraph(n) ? n : ' '), len, tree[n].Code, next_code[len]-1));
+ }
+}
+
+/* ===========================================================================
+ * Construct one Huffman tree and assigns the code bit strings and lengths.
+ * Update the total bit length for the current block.
+ * IN assertion: the field freq is set for all tree elements.
+ * OUT assertions: the fields len and code are set to the optimal bit length
+ * and corresponding code. The length opt_len is updated; static_len is
+ * also updated if stree is not null. The field max_code is set.
+ */
+local void build_tree(desc)
+ tree_desc near *desc; /* the tree descriptor */
+{
+ ct_data near *tree = desc->dyn_tree;
+ ct_data near *stree = desc->static_tree;
+ int elems = desc->elems;
+ int n, m; /* iterate over heap elements */
+ int max_code = -1; /* largest code with non zero frequency */
+ int node = elems; /* next internal node of the tree */
+
+ /* Construct the initial heap, with least frequent element in
+ * heap[SMALLEST]. The sons of heap[n] are heap[2*n] and heap[2*n+1].
+ * heap[0] is not used.
+ */
+ heap_len = 0, heap_max = HEAP_SIZE;
+
+ for (n = 0; n < elems; n++) {
+ if (tree[n].Freq != 0) {
+ heap[++heap_len] = max_code = n;
+ depth[n] = 0;
+ } else {
+ tree[n].Len = 0;
+ }
+ }
+
+ /* The pkzip format requires that at least one distance code exists,
+ * and that at least one bit should be sent even if there is only one
+ * possible code. So to avoid special checks later on we force at least
+ * two codes of non zero frequency.
+ */
+ while (heap_len < 2) {
+ int new = heap[++heap_len] = (max_code < 2 ? ++max_code : 0);
+ tree[new].Freq = 1;
+ depth[new] = 0;
+ opt_len--; if (stree) static_len -= stree[new].Len;
+ /* new is 0 or 1 so it does not have extra bits */
+ }
+ desc->max_code = max_code;
+
+ /* The elements heap[heap_len/2+1 .. heap_len] are leaves of the tree,
+ * establish sub-heaps of increasing lengths:
+ */
+ for (n = heap_len/2; n >= 1; n--) pqdownheap(tree, n);
+
+ /* Construct the Huffman tree by repeatedly combining the least two
+ * frequent nodes.
+ */
+ do {
+ pqremove(tree, n); /* n = node of least frequency */
+ m = heap[SMALLEST]; /* m = node of next least frequency */
+
+ heap[--heap_max] = n; /* keep the nodes sorted by frequency */
+ heap[--heap_max] = m;
+
+ /* Create a new node father of n and m */
+ tree[node].Freq = tree[n].Freq + tree[m].Freq;
+ depth[node] = (uch) (MAX(depth[n], depth[m]) + 1);
+ tree[n].Dad = tree[m].Dad = (ush)node;
+#ifdef DUMP_BL_TREE
+ if (tree == bl_tree) {
+ fprintf(stderr,"\nnode %d(%d), sons %d(%d) %d(%d)",
+ node, tree[node].Freq, n, tree[n].Freq, m, tree[m].Freq);
+ }
+#endif
+ /* and insert the new node in the heap */
+ heap[SMALLEST] = node++;
+ pqdownheap(tree, SMALLEST);
+
+ } while (heap_len >= 2);
+
+ heap[--heap_max] = heap[SMALLEST];
+
+ /* At this point, the fields freq and dad are set. We can now
+ * generate the bit lengths.
+ */
+ gen_bitlen((tree_desc near *)desc);
+
+ /* The field len is now set, we can generate the bit codes */
+ gen_codes ((ct_data near *)tree, max_code);
+}
+
+/* ===========================================================================
+ * Scan a literal or distance tree to determine the frequencies of the codes
+ * in the bit length tree. Updates opt_len to take into account the repeat
+ * counts. (The contribution of the bit length codes will be added later
+ * during the construction of bl_tree.)
+ */
+local void scan_tree (tree, max_code)
+ ct_data near *tree; /* the tree to be scanned */
+ int max_code; /* and its largest code of non zero frequency */
+{
+ int n; /* iterates over all tree elements */
+ int prevlen = -1; /* last emitted length */
+ int curlen; /* length of current code */
+ int nextlen = tree[0].Len; /* length of next code */
+ int count = 0; /* repeat count of the current code */
+ int max_count = 7; /* max repeat count */
+ int min_count = 4; /* min repeat count */
+
+ if (nextlen == 0) max_count = 138, min_count = 3;
+ tree[max_code+1].Len = (ush)0xffff; /* guard */
+
+ for (n = 0; n <= max_code; n++) {
+ curlen = nextlen; nextlen = tree[n+1].Len;
+ if (++count < max_count && curlen == nextlen) {
+ continue;
+ } else if (count < min_count) {
+ bl_tree[curlen].Freq += count;
+ } else if (curlen != 0) {
+ if (curlen != prevlen) bl_tree[curlen].Freq++;
+ bl_tree[REP_3_6].Freq++;
+ } else if (count <= 10) {
+ bl_tree[REPZ_3_10].Freq++;
+ } else {
+ bl_tree[REPZ_11_138].Freq++;
+ }
+ count = 0; prevlen = curlen;
+ if (nextlen == 0) {
+ max_count = 138, min_count = 3;
+ } else if (curlen == nextlen) {
+ max_count = 6, min_count = 3;
+ } else {
+ max_count = 7, min_count = 4;
+ }
+ }
+}
+
+/* ===========================================================================
+ * Send a literal or distance tree in compressed form, using the codes in
+ * bl_tree.
+ */
+local void send_tree (tree, max_code)
+ ct_data near *tree; /* the tree to be scanned */
+ int max_code; /* and its largest code of non zero frequency */
+{
+ int n; /* iterates over all tree elements */
+ int prevlen = -1; /* last emitted length */
+ int curlen; /* length of current code */
+ int nextlen = tree[0].Len; /* length of next code */
+ int count = 0; /* repeat count of the current code */
+ int max_count = 7; /* max repeat count */
+ int min_count = 4; /* min repeat count */
+
+ /* tree[max_code+1].Len = -1; */ /* guard already set */
+ if (nextlen == 0) max_count = 138, min_count = 3;
+
+ for (n = 0; n <= max_code; n++) {
+ curlen = nextlen; nextlen = tree[n+1].Len;
+ if (++count < max_count && curlen == nextlen) {
+ continue;
+ } else if (count < min_count) {
+ do { send_code(curlen, bl_tree); } while (--count != 0);
+
+ } else if (curlen != 0) {
+ if (curlen != prevlen) {
+ send_code(curlen, bl_tree); count--;
+ }
+ Assert(count >= 3 && count <= 6, " 3_6?");
+ send_code(REP_3_6, bl_tree); send_bits(count-3, 2);
+
+ } else if (count <= 10) {
+ send_code(REPZ_3_10, bl_tree); send_bits(count-3, 3);
+
+ } else {
+ send_code(REPZ_11_138, bl_tree); send_bits(count-11, 7);
+ }
+ count = 0; prevlen = curlen;
+ if (nextlen == 0) {
+ max_count = 138, min_count = 3;
+ } else if (curlen == nextlen) {
+ max_count = 6, min_count = 3;
+ } else {
+ max_count = 7, min_count = 4;
+ }
+ }
+}
+
+/* ===========================================================================
+ * Construct the Huffman tree for the bit lengths and return the index in
+ * bl_order of the last bit length code to send.
+ */
+local int build_bl_tree()
+{
+ int max_blindex; /* index of last bit length code of non zero freq */
+
+ /* Determine the bit length frequencies for literal and distance trees */
+ scan_tree((ct_data near *)dyn_ltree, l_desc.max_code);
+ scan_tree((ct_data near *)dyn_dtree, d_desc.max_code);
+
+ /* Build the bit length tree: */
+ build_tree((tree_desc near *)(&bl_desc));
+ /* opt_len now includes the length of the tree representations, except
+ * the lengths of the bit lengths codes and the 5+5+4 bits for the counts.
+ */
+
+ /* Determine the number of bit length codes to send. The pkzip format
+ * requires that at least 4 bit length codes be sent. (appnote.txt says
+ * 3 but the actual value used is 4.)
+ */
+ for (max_blindex = BL_CODES-1; max_blindex >= 3; max_blindex--) {
+ if (bl_tree[bl_order[max_blindex]].Len != 0) break;
+ }
+ /* Update opt_len to include the bit length tree and counts */
+ opt_len += 3*(max_blindex+1) + 5+5+4;
+ Tracev((stderr, "\ndyn trees: dyn %lu, stat %lu", opt_len, static_len));
+
+ return max_blindex;
+}
+
+/* ===========================================================================
+ * Send the header for a block using dynamic Huffman trees: the counts, the
+ * lengths of the bit length codes, the literal tree and the distance tree.
+ * IN assertion: lcodes >= 257, dcodes >= 1, blcodes >= 4.
+ */
+local void send_all_trees(lcodes, dcodes, blcodes)
+ int lcodes, dcodes, blcodes; /* number of codes for each tree */
+{
+ int rank; /* index in bl_order */
+
+ Assert (lcodes >= 257 && dcodes >= 1 && blcodes >= 4, "not enough codes");
+ Assert (lcodes <= L_CODES && dcodes <= D_CODES && blcodes <= BL_CODES,
+ "too many codes");
+ Tracev((stderr, "\nbl counts: "));
+ send_bits(lcodes-257, 5); /* not +255 as stated in appnote.txt */
+ send_bits(dcodes-1, 5);
+ send_bits(blcodes-4, 4); /* not -3 as stated in appnote.txt */
+ for (rank = 0; rank < blcodes; rank++) {
+ Tracev((stderr, "\nbl code %2d ", bl_order[rank]));
+ send_bits(bl_tree[bl_order[rank]].Len, 3);
+ }
+
+ send_tree((ct_data near *)dyn_ltree, lcodes-1); /* send the literal tree */
+
+ send_tree((ct_data near *)dyn_dtree, dcodes-1); /* send the distance tree */
+}
+
+/* ===========================================================================
+ * Determine the best encoding for the current block: dynamic trees, static
+ * trees or store, and output the encoded block to the zip file. This function
+ * returns the total compressed length for the file so far.
+ */
+off_t flush_block(buf, stored_len, eof)
+ char *buf; /* input block, or NULL if too old */
+ ulg stored_len; /* length of input block */
+ int eof; /* true if this is the last block for a file */
+{
+ ulg opt_lenb, static_lenb; /* opt_len and static_len in bytes */
+ int max_blindex; /* index of last bit length code of non zero freq */
+
+ flag_buf[last_flags] = flags; /* Save the flags for the last 8 items */
+
+ /* Check if the file is ascii or binary */
+ if (*file_type == (ush)UNKNOWN) set_file_type();
+
+ /* Construct the literal and distance trees */
+ build_tree((tree_desc near *)(&l_desc));
+ Tracev((stderr, "\nlit data: dyn %lu, stat %lu", opt_len, static_len));
+
+ build_tree((tree_desc near *)(&d_desc));
+ Tracev((stderr, "\ndist data: dyn %lu, stat %lu", opt_len, static_len));
+ /* At this point, opt_len and static_len are the total bit lengths of
+ * the compressed block data, excluding the tree representations.
+ */
+
+ /* Build the bit length tree for the above two trees, and get the index
+ * in bl_order of the last bit length code to send.
+ */
+ max_blindex = build_bl_tree();
+
+ /* Determine the best encoding. Compute first the block length in bytes */
+ opt_lenb = (opt_len+3+7)>>3;
+ static_lenb = (static_len+3+7)>>3;
+ input_len += stored_len; /* for debugging only */
+
+ Trace((stderr, "\nopt %lu(%lu) stat %lu(%lu) stored %lu lit %u dist %u ",
+ opt_lenb, opt_len, static_lenb, static_len, stored_len,
+ last_lit, last_dist));
+
+ if (static_lenb <= opt_lenb) opt_lenb = static_lenb;
+
+ /* If compression failed and this is the first and last block,
+ * and if the zip file can be seeked (to rewrite the local header),
+ * the whole file is transformed into a stored file:
+ */
+#ifdef FORCE_METHOD
+ if (level == 1 && eof && compressed_len == 0L) { /* force stored file */
+#else
+ if (stored_len <= opt_lenb && eof && compressed_len == 0L && seekable()) {
+#endif
+ /* Since LIT_BUFSIZE <= 2*WSIZE, the input data must be there: */
+ if (buf == (char*)0) error ("block vanished");
+
+ copy_block(buf, (unsigned)stored_len, 0); /* without header */
+ compressed_len = stored_len << 3;
+ *file_method = STORED;
+
+#ifdef FORCE_METHOD
+ } else if (level == 2 && buf != (char*)0) { /* force stored block */
+#else
+ } else if (stored_len+4 <= opt_lenb && buf != (char*)0) {
+ /* 4: two words for the lengths */
+#endif
+ /* The test buf != NULL is only necessary if LIT_BUFSIZE > WSIZE.
+ * Otherwise we can't have processed more than WSIZE input bytes since
+ * the last block flush, because compression would have been
+ * successful. If LIT_BUFSIZE <= WSIZE, it is never too late to
+ * transform a block into a stored block.
+ */
+ send_bits((STORED_BLOCK<<1)+eof, 3); /* send block type */
+ compressed_len = (compressed_len + 3 + 7) & ~7L;
+ compressed_len += (stored_len + 4) << 3;
+
+ copy_block(buf, (unsigned)stored_len, 1); /* with header */
+
+#ifdef FORCE_METHOD
+ } else if (level == 3) { /* force static trees */
+#else
+ } else if (static_lenb == opt_lenb) {
+#endif
+ send_bits((STATIC_TREES<<1)+eof, 3);
+ compress_block((ct_data near *)static_ltree, (ct_data near *)static_dtree);
+ compressed_len += 3 + static_len;
+ } else {
+ send_bits((DYN_TREES<<1)+eof, 3);
+ send_all_trees(l_desc.max_code+1, d_desc.max_code+1, max_blindex+1);
+ compress_block((ct_data near *)dyn_ltree, (ct_data near *)dyn_dtree);
+ compressed_len += 3 + opt_len;
+ }
+ Assert (compressed_len == bits_sent, "bad compressed size");
+ init_block();
+
+ if (eof) {
+ Assert (input_len == bytes_in, "bad input size");
+ bi_windup();
+ compressed_len += 7; /* align on byte boundary */
+ }
+
+ return compressed_len >> 3;
+}
+
+/* ===========================================================================
+ * Save the match info and tally the frequency counts. Return true if
+ * the current block must be flushed.
+ */
+int ct_tally (dist, lc)
+ int dist; /* distance of matched string */
+ int lc; /* match length-MIN_MATCH or unmatched char (if dist==0) */
+{
+ l_buf[last_lit++] = (uch)lc;
+ if (dist == 0) {
+ /* lc is the unmatched char */
+ dyn_ltree[lc].Freq++;
+ } else {
+ /* Here, lc is the match length - MIN_MATCH */
+ dist--; /* dist = match distance - 1 */
+ Assert((ush)dist < (ush)MAX_DIST &&
+ (ush)lc <= (ush)(MAX_MATCH-MIN_MATCH) &&
+ (ush)d_code(dist) < (ush)D_CODES, "ct_tally: bad match");
+
+ dyn_ltree[length_code[lc]+LITERALS+1].Freq++;
+ dyn_dtree[d_code(dist)].Freq++;
+
+ d_buf[last_dist++] = (ush)dist;
+ flags |= flag_bit;
+ }
+ flag_bit <<= 1;
+
+ /* Output the flags if they fill a byte: */
+ if ((last_lit & 7) == 0) {
+ flag_buf[last_flags++] = flags;
+ flags = 0, flag_bit = 1;
+ }
+ /* Try to guess if it is profitable to stop the current block here */
+ if (level > 2 && (last_lit & 0xfff) == 0) {
+ /* Compute an upper bound for the compressed length */
+ ulg out_length = (ulg)last_lit*8L;
+ ulg in_length = (ulg)strstart-block_start;
+ int dcode;
+ for (dcode = 0; dcode < D_CODES; dcode++) {
+ out_length += (ulg)dyn_dtree[dcode].Freq*(5L+extra_dbits[dcode]);
+ }
+ out_length >>= 3;
+ Trace((stderr,"\nlast_lit %u, last_dist %u, in %ld, out ~%ld(%ld%%) ",
+ last_lit, last_dist, in_length, out_length,
+ 100L - out_length*100L/in_length));
+ if (last_dist < last_lit/2 && out_length < in_length/2) return 1;
+ }
+ return (last_lit == LIT_BUFSIZE-1 || last_dist == DIST_BUFSIZE);
+ /* We avoid equality with LIT_BUFSIZE because of wraparound at 64K
+ * on 16 bit machines and because stored blocks are restricted to
+ * 64K-1 bytes.
+ */
+}
+
+/* ===========================================================================
+ * Send the block data compressed using the given Huffman trees
+ */
+local void compress_block(ltree, dtree)
+ ct_data near *ltree; /* literal tree */
+ ct_data near *dtree; /* distance tree */
+{
+ unsigned dist; /* distance of matched string */
+ int lc; /* match length or unmatched char (if dist == 0) */
+ unsigned lx = 0; /* running index in l_buf */
+ unsigned dx = 0; /* running index in d_buf */
+ unsigned fx = 0; /* running index in flag_buf */
+ uch flag = 0; /* current flags */
+ unsigned code; /* the code to send */
+ int extra; /* number of extra bits to send */
+
+ if (last_lit != 0) do {
+ if ((lx & 7) == 0) flag = flag_buf[fx++];
+ lc = l_buf[lx++];
+ if ((flag & 1) == 0) {
+ send_code(lc, ltree); /* send a literal byte */
+ Tracecv(isgraph(lc), (stderr," '%c' ", lc));
+ } else {
+ /* Here, lc is the match length - MIN_MATCH */
+ code = length_code[lc];
+ send_code(code+LITERALS+1, ltree); /* send the length code */
+ extra = extra_lbits[code];
+ if (extra != 0) {
+ lc -= base_length[code];
+ send_bits(lc, extra); /* send the extra length bits */
+ }
+ dist = d_buf[dx++];
+ /* Here, dist is the match distance - 1 */
+ code = d_code(dist);
+ Assert (code < D_CODES, "bad d_code");
+
+ send_code(code, dtree); /* send the distance code */
+ extra = extra_dbits[code];
+ if (extra != 0) {
+ dist -= base_dist[code];
+ send_bits(dist, extra); /* send the extra distance bits */
+ }
+ } /* literal or match pair ? */
+ flag >>= 1;
+ } while (lx < last_lit);
+
+ send_code(END_BLOCK, ltree);
+}
+
+/* ===========================================================================
+ * Set the file type to ASCII or BINARY, using a crude approximation:
+ * binary if more than 20% of the bytes are <= 6 or >= 128, ascii otherwise.
+ * IN assertion: the fields freq of dyn_ltree are set and the total of all
+ * frequencies does not exceed 64K (to fit in an int on 16 bit machines).
+ */
+local void set_file_type()
+{
+ int n = 0;
+ unsigned ascii_freq = 0;
+ unsigned bin_freq = 0;
+ while (n < 7) bin_freq += dyn_ltree[n++].Freq;
+ while (n < 128) ascii_freq += dyn_ltree[n++].Freq;
+ while (n < LITERALS) bin_freq += dyn_ltree[n++].Freq;
+ *file_type = bin_freq > (ascii_freq >> 2) ? BINARY : ASCII;
+ if (*file_type == BINARY && translate_eol) {
+ warning ("-l used on binary file");
+ }
+}
--- /dev/null
+/* unlzh.c -- decompress files in SCO compress -H (LZH) format.
+ * The code in this file is directly derived from the public domain 'ar002'
+ * written by Haruhiko Okumura.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: unlzh.c,v 1.2 1993/06/24 10:59:01 jloup Exp $";
+#endif
+
+#include <config.h>
+#include <stdio.h>
+
+#include "tailor.h"
+#include "gzip.h"
+#include "lzw.h" /* just for consistency checking */
+
+/* decode.c */
+
+local unsigned decode OF((unsigned count, uch buffer[]));
+local void decode_start OF((void));
+
+/* huf.c */
+local void huf_decode_start OF((void));
+local unsigned decode_c OF((void));
+local unsigned decode_p OF((void));
+local void read_pt_len OF((int nn, int nbit, int i_special));
+local void read_c_len OF((void));
+
+/* io.c */
+local void fillbuf OF((int n));
+local unsigned getbits OF((int n));
+local void init_getbits OF((void));
+
+/* maketbl.c */
+
+local void make_table OF((int nchar, uch bitlen[],
+ int tablebits, ush table[]));
+
+
+#define DICBIT 13 /* 12(-lh4-) or 13(-lh5-) */
+#define DICSIZ ((unsigned) 1 << DICBIT)
+
+#ifndef CHAR_BIT
+# define CHAR_BIT 8
+#endif
+
+#ifndef UCHAR_MAX
+# define UCHAR_MAX 255
+#endif
+
+#define BITBUFSIZ (CHAR_BIT * 2 * sizeof(char))
+/* Do not use CHAR_BIT * sizeof(bitbuf), does not work on machines
+ * for which short is not on 16 bits (Cray).
+ */
+
+/* encode.c and decode.c */
+
+#define MAXMATCH 256 /* formerly F (not more than UCHAR_MAX + 1) */
+#define THRESHOLD 3 /* choose optimal value */
+
+/* huf.c */
+
+#define NC (UCHAR_MAX + MAXMATCH + 2 - THRESHOLD)
+ /* alphabet = {0, 1, 2, ..., NC - 1} */
+#define CBIT 9 /* $\lfloor \log_2 NC \rfloor + 1$ */
+#define CODE_BIT 16 /* codeword length */
+
+#define NP (DICBIT + 1)
+#define NT (CODE_BIT + 3)
+#define PBIT 4 /* smallest integer such that (1U << PBIT) > NP */
+#define TBIT 5 /* smallest integer such that (1U << TBIT) > NT */
+#if NT > NP
+# define NPT NT
+#else
+# define NPT NP
+#endif
+
+/* local ush left[2 * NC - 1]; */
+/* local ush right[2 * NC - 1]; */
+#define left prev
+#define right head
+#if NC > (1<<(BITS-2))
+ error cannot overlay left+right and prev
+#endif
+
+/* local uch c_len[NC]; */
+#define c_len outbuf
+#if NC > OUTBUFSIZ
+ error cannot overlay c_len and outbuf
+#endif
+
+local uch pt_len[NPT];
+local unsigned blocksize;
+local ush pt_table[256];
+
+/* local ush c_table[4096]; */
+#define c_table d_buf
+#if (DIST_BUFSIZE-1) < 4095
+ error cannot overlay c_table and d_buf
+#endif
+
+/***********************************************************
+ io.c -- input/output
+***********************************************************/
+
+local ush bitbuf;
+local unsigned subbitbuf;
+local int bitcount;
+
+local void fillbuf(n) /* Shift bitbuf n bits left, read n bits */
+ int n;
+{
+ bitbuf <<= n;
+ while (n > bitcount) {
+ bitbuf |= subbitbuf << (n -= bitcount);
+ subbitbuf = (unsigned)try_byte();
+ if ((int)subbitbuf == EOF) subbitbuf = 0;
+ bitcount = CHAR_BIT;
+ }
+ bitbuf |= subbitbuf >> (bitcount -= n);
+}
+
+local unsigned getbits(n)
+ int n;
+{
+ unsigned x;
+
+ x = bitbuf >> (BITBUFSIZ - n); fillbuf(n);
+ return x;
+}
+
+local void init_getbits()
+{
+ bitbuf = 0; subbitbuf = 0; bitcount = 0;
+ fillbuf(BITBUFSIZ);
+}
+
+/***********************************************************
+ maketbl.c -- make table for decoding
+***********************************************************/
+
+local void make_table(nchar, bitlen, tablebits, table)
+ int nchar;
+ uch bitlen[];
+ int tablebits;
+ ush table[];
+{
+ ush count[17], weight[17], start[18], *p;
+ unsigned i, k, len, ch, jutbits, avail, nextcode, mask;
+
+ for (i = 1; i <= 16; i++) count[i] = 0;
+ for (i = 0; i < (unsigned)nchar; i++) count[bitlen[i]]++;
+
+ start[1] = 0;
+ for (i = 1; i <= 16; i++)
+ start[i + 1] = start[i] + (count[i] << (16 - i));
+ if ((start[17] & 0xffff) != 0)
+ error("Bad table\n");
+
+ jutbits = 16 - tablebits;
+ for (i = 1; i <= (unsigned)tablebits; i++) {
+ start[i] >>= jutbits;
+ weight[i] = (unsigned) 1 << (tablebits - i);
+ }
+ while (i <= 16) {
+ weight[i] = (unsigned) 1 << (16 - i);
+ i++;
+ }
+
+ i = start[tablebits + 1] >> jutbits;
+ if (i != 0) {
+ k = 1 << tablebits;
+ while (i != k) table[i++] = 0;
+ }
+
+ avail = nchar;
+ mask = (unsigned) 1 << (15 - tablebits);
+ for (ch = 0; ch < (unsigned)nchar; ch++) {
+ if ((len = bitlen[ch]) == 0) continue;
+ nextcode = start[len] + weight[len];
+ if (len <= (unsigned)tablebits) {
+ for (i = start[len]; i < nextcode; i++) table[i] = ch;
+ } else {
+ k = start[len];
+ p = &table[k >> jutbits];
+ i = len - tablebits;
+ while (i != 0) {
+ if (*p == 0) {
+ right[avail] = left[avail] = 0;
+ *p = avail++;
+ }
+ if (k & mask) p = &right[*p];
+ else p = &left[*p];
+ k <<= 1; i--;
+ }
+ *p = ch;
+ }
+ start[len] = nextcode;
+ }
+}
+
+/***********************************************************
+ huf.c -- static Huffman
+***********************************************************/
+
+local void read_pt_len(nn, nbit, i_special)
+ int nn;
+ int nbit;
+ int i_special;
+{
+ int i, c, n;
+ unsigned mask;
+
+ n = getbits(nbit);
+ if (n == 0) {
+ c = getbits(nbit);
+ for (i = 0; i < nn; i++) pt_len[i] = 0;
+ for (i = 0; i < 256; i++) pt_table[i] = c;
+ } else {
+ i = 0;
+ while (i < n) {
+ c = bitbuf >> (BITBUFSIZ - 3);
+ if (c == 7) {
+ mask = (unsigned) 1 << (BITBUFSIZ - 1 - 3);
+ while (mask & bitbuf) { mask >>= 1; c++; }
+ }
+ fillbuf((c < 7) ? 3 : c - 3);
+ pt_len[i++] = c;
+ if (i == i_special) {
+ c = getbits(2);
+ while (--c >= 0) pt_len[i++] = 0;
+ }
+ }
+ while (i < nn) pt_len[i++] = 0;
+ make_table(nn, pt_len, 8, pt_table);
+ }
+}
+
+local void read_c_len()
+{
+ int i, c, n;
+ unsigned mask;
+
+ n = getbits(CBIT);
+ if (n == 0) {
+ c = getbits(CBIT);
+ for (i = 0; i < NC; i++) c_len[i] = 0;
+ for (i = 0; i < 4096; i++) c_table[i] = c;
+ } else {
+ i = 0;
+ while (i < n) {
+ c = pt_table[bitbuf >> (BITBUFSIZ - 8)];
+ if (c >= NT) {
+ mask = (unsigned) 1 << (BITBUFSIZ - 1 - 8);
+ do {
+ if (bitbuf & mask) c = right[c];
+ else c = left [c];
+ mask >>= 1;
+ } while (c >= NT);
+ }
+ fillbuf((int) pt_len[c]);
+ if (c <= 2) {
+ if (c == 0) c = 1;
+ else if (c == 1) c = getbits(4) + 3;
+ else c = getbits(CBIT) + 20;
+ while (--c >= 0) c_len[i++] = 0;
+ } else c_len[i++] = c - 2;
+ }
+ while (i < NC) c_len[i++] = 0;
+ make_table(NC, c_len, 12, c_table);
+ }
+}
+
+local unsigned decode_c()
+{
+ unsigned j, mask;
+
+ if (blocksize == 0) {
+ blocksize = getbits(16);
+ if (blocksize == 0) {
+ return NC; /* end of file */
+ }
+ read_pt_len(NT, TBIT, 3);
+ read_c_len();
+ read_pt_len(NP, PBIT, -1);
+ }
+ blocksize--;
+ j = c_table[bitbuf >> (BITBUFSIZ - 12)];
+ if (j >= NC) {
+ mask = (unsigned) 1 << (BITBUFSIZ - 1 - 12);
+ do {
+ if (bitbuf & mask) j = right[j];
+ else j = left [j];
+ mask >>= 1;
+ } while (j >= NC);
+ }
+ fillbuf((int) c_len[j]);
+ return j;
+}
+
+local unsigned decode_p()
+{
+ unsigned j, mask;
+
+ j = pt_table[bitbuf >> (BITBUFSIZ - 8)];
+ if (j >= NP) {
+ mask = (unsigned) 1 << (BITBUFSIZ - 1 - 8);
+ do {
+ if (bitbuf & mask) j = right[j];
+ else j = left [j];
+ mask >>= 1;
+ } while (j >= NP);
+ }
+ fillbuf((int) pt_len[j]);
+ if (j != 0) j = ((unsigned) 1 << (j - 1)) + getbits((int) (j - 1));
+ return j;
+}
+
+local void huf_decode_start()
+{
+ init_getbits(); blocksize = 0;
+}
+
+/***********************************************************
+ decode.c
+***********************************************************/
+
+local int j; /* remaining bytes to copy */
+local int done; /* set at end of input */
+
+local void decode_start()
+{
+ huf_decode_start();
+ j = 0;
+ done = 0;
+}
+
+/* Decode the input and return the number of decoded bytes put in buffer
+ */
+local unsigned decode(count, buffer)
+ unsigned count;
+ uch buffer[];
+ /* The calling function must keep the number of
+ bytes to be processed. This function decodes
+ either 'count' bytes or 'DICSIZ' bytes, whichever
+ is smaller, into the array 'buffer[]' of size
+ 'DICSIZ' or more.
+ Call decode_start() once for each new file
+ before calling this function.
+ */
+{
+ local unsigned i;
+ unsigned r, c;
+
+ r = 0;
+ while (--j >= 0) {
+ buffer[r] = buffer[i];
+ i = (i + 1) & (DICSIZ - 1);
+ if (++r == count) return r;
+ }
+ for ( ; ; ) {
+ c = decode_c();
+ if (c == NC) {
+ done = 1;
+ return r;
+ }
+ if (c <= UCHAR_MAX) {
+ buffer[r] = c;
+ if (++r == count) return r;
+ } else {
+ j = c - (UCHAR_MAX + 1 - THRESHOLD);
+ i = (r - decode_p() - 1) & (DICSIZ - 1);
+ while (--j >= 0) {
+ buffer[r] = buffer[i];
+ i = (i + 1) & (DICSIZ - 1);
+ if (++r == count) return r;
+ }
+ }
+ }
+}
+
+
+/* ===========================================================================
+ * Unlzh in to out. Return OK or ERROR.
+ */
+int unlzh(in, out)
+ int in;
+ int out;
+{
+ unsigned n;
+ ifd = in;
+ ofd = out;
+
+ decode_start();
+ while (!done) {
+ n = decode((unsigned) DICSIZ, window);
+ if (!test && n > 0) {
+ write_buf(out, (char*)window, n);
+ }
+ }
+ return OK;
+}
--- /dev/null
+/* unlzw.c -- decompress files in LZW format.
+ * The code in this file is directly derived from the public domain 'compress'
+ * written by Spencer Thomas, Joe Orost, James Woods, Jim McKie, Steve Davies,
+ * Ken Turkowski, Dave Mack and Peter Jannesen.
+ *
+ * This is a temporary version which will be rewritten in some future version
+ * to accommodate in-memory decompression.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: unlzw.c,v 0.15 1993/06/10 13:28:35 jloup Exp $";
+#endif
+
+#include <config.h>
+#include "tailor.h"
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+
+#include "gzip.h"
+#include "lzw.h"
+
+typedef unsigned char char_type;
+typedef long code_int;
+typedef unsigned long count_int;
+typedef unsigned short count_short;
+typedef unsigned long cmp_code_int;
+
+#define MAXCODE(n) (1L << (n))
+
+#ifndef REGISTERS
+# define REGISTERS 2
+#endif
+#define REG1
+#define REG2
+#define REG3
+#define REG4
+#define REG5
+#define REG6
+#define REG7
+#define REG8
+#define REG9
+#define REG10
+#define REG11
+#define REG12
+#define REG13
+#define REG14
+#define REG15
+#define REG16
+#if REGISTERS >= 1
+# undef REG1
+# define REG1 register
+#endif
+#if REGISTERS >= 2
+# undef REG2
+# define REG2 register
+#endif
+#if REGISTERS >= 3
+# undef REG3
+# define REG3 register
+#endif
+#if REGISTERS >= 4
+# undef REG4
+# define REG4 register
+#endif
+#if REGISTERS >= 5
+# undef REG5
+# define REG5 register
+#endif
+#if REGISTERS >= 6
+# undef REG6
+# define REG6 register
+#endif
+#if REGISTERS >= 7
+# undef REG7
+# define REG7 register
+#endif
+#if REGISTERS >= 8
+# undef REG8
+# define REG8 register
+#endif
+#if REGISTERS >= 9
+# undef REG9
+# define REG9 register
+#endif
+#if REGISTERS >= 10
+# undef REG10
+# define REG10 register
+#endif
+#if REGISTERS >= 11
+# undef REG11
+# define REG11 register
+#endif
+#if REGISTERS >= 12
+# undef REG12
+# define REG12 register
+#endif
+#if REGISTERS >= 13
+# undef REG13
+# define REG13 register
+#endif
+#if REGISTERS >= 14
+# undef REG14
+# define REG14 register
+#endif
+#if REGISTERS >= 15
+# undef REG15
+# define REG15 register
+#endif
+#if REGISTERS >= 16
+# undef REG16
+# define REG16 register
+#endif
+
+#ifndef BYTEORDER
+# define BYTEORDER 0000
+#endif
+
+#ifndef NOALLIGN
+# define NOALLIGN 0
+#endif
+
+
+union bytes {
+ long word;
+ struct {
+#if BYTEORDER == 4321
+ char_type b1;
+ char_type b2;
+ char_type b3;
+ char_type b4;
+#else
+#if BYTEORDER == 1234
+ char_type b4;
+ char_type b3;
+ char_type b2;
+ char_type b1;
+#else
+# undef BYTEORDER
+ int dummy;
+#endif
+#endif
+ } bytes;
+};
+
+#if BYTEORDER == 4321 && NOALLIGN == 1
+# define input(b,o,c,n,m){ \
+ (c) = (*(long *)(&(b)[(o)>>3])>>((o)&0x7))&(m); \
+ (o) += (n); \
+ }
+#else
+# define input(b,o,c,n,m){ \
+ REG1 char_type *p = &(b)[(o)>>3]; \
+ (c) = ((((long)(p[0]))|((long)(p[1])<<8)| \
+ ((long)(p[2])<<16))>>((o)&0x7))&(m); \
+ (o) += (n); \
+ }
+#endif
+
+#ifndef MAXSEG_64K
+ /* DECLARE(ush, tab_prefix, (1<<BITS)); -- prefix code */
+# define tab_prefixof(i) tab_prefix[i]
+# define clear_tab_prefixof() memzero(tab_prefix, 256);
+#else
+ /* DECLARE(ush, tab_prefix0, (1<<(BITS-1)); -- prefix for even codes */
+ /* DECLARE(ush, tab_prefix1, (1<<(BITS-1)); -- prefix for odd codes */
+ ush *tab_prefix[2];
+# define tab_prefixof(i) tab_prefix[(i)&1][(i)>>1]
+# define clear_tab_prefixof() \
+ memzero(tab_prefix0, 128), \
+ memzero(tab_prefix1, 128);
+#endif
+#define de_stack ((char_type *)(&d_buf[DIST_BUFSIZE-1]))
+#define tab_suffixof(i) tab_suffix[i]
+
+int block_mode = BLOCK_MODE; /* block compress mode -C compatible with 2.0 */
+
+/* ============================================================================
+ * Decompress in to out. This routine adapts to the codes in the
+ * file building the "string" table on-the-fly; requiring no table to
+ * be stored in the compressed file.
+ * IN assertions: the buffer inbuf contains already the beginning of
+ * the compressed data, from offsets iptr to insize-1 included.
+ * The magic header has already been checked and skipped.
+ * bytes_in and bytes_out have been initialized.
+ */
+int unlzw(in, out)
+ int in, out; /* input and output file descriptors */
+{
+ REG2 char_type *stackp;
+ REG3 code_int code;
+ REG4 int finchar;
+ REG5 code_int oldcode;
+ REG6 code_int incode;
+ REG7 long inbits;
+ REG8 long posbits;
+ REG9 int outpos;
+/* REG10 int insize; (global) */
+ REG11 unsigned bitmask;
+ REG12 code_int free_ent;
+ REG13 code_int maxcode;
+ REG14 code_int maxmaxcode;
+ REG15 int n_bits;
+ REG16 int rsize;
+
+#ifdef MAXSEG_64K
+ tab_prefix[0] = tab_prefix0;
+ tab_prefix[1] = tab_prefix1;
+#endif
+ maxbits = get_byte();
+ block_mode = maxbits & BLOCK_MODE;
+ if ((maxbits & LZW_RESERVED) != 0) {
+ WARN((stderr, "\n%s: %s: warning, unknown flags 0x%x\n",
+ progname, ifname, maxbits & LZW_RESERVED));
+ }
+ maxbits &= BIT_MASK;
+ maxmaxcode = MAXCODE(maxbits);
+
+ if (maxbits > BITS) {
+ fprintf(stderr,
+ "\n%s: %s: compressed with %d bits, can only handle %d bits\n",
+ progname, ifname, maxbits, BITS);
+ exit_code = ERROR;
+ return ERROR;
+ }
+ rsize = insize;
+ maxcode = MAXCODE(n_bits = INIT_BITS)-1;
+ bitmask = (1<<n_bits)-1;
+ oldcode = -1;
+ finchar = 0;
+ outpos = 0;
+ posbits = inptr<<3;
+
+ free_ent = ((block_mode) ? FIRST : 256);
+
+ clear_tab_prefixof(); /* Initialize the first 256 entries in the table. */
+
+ for (code = 255 ; code >= 0 ; --code) {
+ tab_suffixof(code) = (char_type)code;
+ }
+ do {
+ REG1 int i;
+ int e;
+ int o;
+
+ resetbuf:
+ e = insize-(o = (posbits>>3));
+
+ for (i = 0 ; i < e ; ++i) {
+ inbuf[i] = inbuf[i+o];
+ }
+ insize = e;
+ posbits = 0;
+
+ if (insize < INBUF_EXTRA) {
+ if ((rsize = read(in, (char*)inbuf+insize, INBUFSIZ)) == -1) {
+ read_error();
+ }
+ insize += rsize;
+ bytes_in += (off_t)rsize;
+ }
+ inbits = ((rsize != 0) ? ((long)insize - insize%n_bits)<<3 :
+ ((long)insize<<3)-(n_bits-1));
+
+ while (inbits > posbits) {
+ if (free_ent > maxcode) {
+ posbits = ((posbits-1) +
+ ((n_bits<<3)-(posbits-1+(n_bits<<3))%(n_bits<<3)));
+ ++n_bits;
+ if (n_bits == maxbits) {
+ maxcode = maxmaxcode;
+ } else {
+ maxcode = MAXCODE(n_bits)-1;
+ }
+ bitmask = (1<<n_bits)-1;
+ goto resetbuf;
+ }
+ input(inbuf,posbits,code,n_bits,bitmask);
+ Tracev((stderr, "%d ", code));
+
+ if (oldcode == -1) {
+ if (code >= 256) error("corrupt input.");
+ outbuf[outpos++] = (char_type)(finchar = (int)(oldcode=code));
+ continue;
+ }
+ if (code == CLEAR && block_mode) {
+ clear_tab_prefixof();
+ free_ent = FIRST - 1;
+ posbits = ((posbits-1) +
+ ((n_bits<<3)-(posbits-1+(n_bits<<3))%(n_bits<<3)));
+ maxcode = MAXCODE(n_bits = INIT_BITS)-1;
+ bitmask = (1<<n_bits)-1;
+ goto resetbuf;
+ }
+ incode = code;
+ stackp = de_stack;
+
+ if (code >= free_ent) { /* Special case for KwKwK string. */
+ if (code > free_ent) {
+#ifdef DEBUG
+ char_type *p;
+
+ posbits -= n_bits;
+ p = &inbuf[posbits>>3];
+ fprintf(stderr,
+ "code:%ld free_ent:%ld n_bits:%d insize:%u\n",
+ code, free_ent, n_bits, insize);
+ fprintf(stderr,
+ "posbits:%ld inbuf:%02X %02X %02X %02X %02X\n",
+ posbits, p[-1],p[0],p[1],p[2],p[3]);
+#endif
+ if (!test && outpos > 0) {
+ write_buf(out, (char*)outbuf, outpos);
+ bytes_out += (off_t)outpos;
+ }
+ error(to_stdout ? "corrupt input." :
+ "corrupt input. Use zcat to recover some data.");
+ }
+ *--stackp = (char_type)finchar;
+ code = oldcode;
+ }
+
+ while ((cmp_code_int)code >= (cmp_code_int)256) {
+ /* Generate output characters in reverse order */
+ *--stackp = tab_suffixof(code);
+ code = tab_prefixof(code);
+ }
+ *--stackp = (char_type)(finchar = tab_suffixof(code));
+
+ /* And put them out in forward order */
+ {
+ REG1 int i;
+
+ if (outpos+(i = (de_stack-stackp)) >= OUTBUFSIZ) {
+ do {
+ if (i > OUTBUFSIZ-outpos) i = OUTBUFSIZ-outpos;
+
+ if (i > 0) {
+ memcpy(outbuf+outpos, stackp, i);
+ outpos += i;
+ }
+ if (outpos >= OUTBUFSIZ) {
+ if (!test) {
+ write_buf(out, (char*)outbuf, outpos);
+ bytes_out += (off_t)outpos;
+ }
+ outpos = 0;
+ }
+ stackp+= i;
+ } while ((i = (de_stack-stackp)) > 0);
+ } else {
+ memcpy(outbuf+outpos, stackp, i);
+ outpos += i;
+ }
+ }
+
+ if ((code = free_ent) < maxmaxcode) { /* Generate the new entry. */
+
+ tab_prefixof(code) = (unsigned short)oldcode;
+ tab_suffixof(code) = (char_type)finchar;
+ free_ent = code+1;
+ }
+ oldcode = incode; /* Remember previous code. */
+ }
+ } while (rsize != 0);
+
+ if (!test && outpos > 0) {
+ write_buf(out, (char*)outbuf, outpos);
+ bytes_out += (off_t)outpos;
+ }
+ return OK;
+}
--- /dev/null
+/* unpack.c -- decompress files in pack format.
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: unpack.c,v 1.4 1993/06/11 19:25:36 jloup Exp $";
+#endif
+
+#include <config.h>
+#include "tailor.h"
+#include "gzip.h"
+#include "crypt.h"
+
+#define MIN(a,b) ((a) <= (b) ? (a) : (b))
+/* The arguments must not have side effects. */
+
+#define MAX_BITLEN 25
+/* Maximum length of Huffman codes. (Minor modifications to the code
+ * would be needed to support 32 bits codes, but pack never generates
+ * more than 24 bits anyway.)
+ */
+
+#define LITERALS 256
+/* Number of literals, excluding the End of Block (EOB) code */
+
+#define MAX_PEEK 12
+/* Maximum number of 'peek' bits used to optimize traversal of the
+ * Huffman tree.
+ */
+
+local ulg orig_len; /* original uncompressed length */
+local int max_len; /* maximum bit length of Huffman codes */
+
+local uch literal[LITERALS];
+/* The literal bytes present in the Huffman tree. The EOB code is not
+ * represented.
+ */
+
+local int lit_base[MAX_BITLEN+1];
+/* All literals of a given bit length are contiguous in literal[] and
+ * have contiguous codes. literal[code+lit_base[len]] is the literal
+ * for a code of len bits.
+ */
+
+local int leaves [MAX_BITLEN+1]; /* Number of leaves for each bit length */
+local int parents[MAX_BITLEN+1]; /* Number of parents for each bit length */
+
+local int peek_bits; /* Number of peek bits currently used */
+
+/* local uch prefix_len[1 << MAX_PEEK]; */
+#define prefix_len outbuf
+/* For each bit pattern b of peek_bits bits, prefix_len[b] is the length
+ * of the Huffman code starting with a prefix of b (upper bits), or 0
+ * if all codes of prefix b have more than peek_bits bits. It is not
+ * necessary to have a huge table (large MAX_PEEK) because most of the
+ * codes encountered in the input stream are short codes (by construction).
+ * So for most codes a single lookup will be necessary.
+ */
+#if (1<<MAX_PEEK) > OUTBUFSIZ
+ error cannot overlay prefix_len and outbuf
+#endif
+
+local ulg bitbuf;
+/* Bits are added on the low part of bitbuf and read from the high part. */
+
+local int valid; /* number of valid bits in bitbuf */
+/* all bits above the last valid bit are always zero */
+
+/* Set code to the next 'bits' input bits without skipping them. code
+ * must be the name of a simple variable and bits must not have side effects.
+ * IN assertions: bits <= 25 (so that we still have room for an extra byte
+ * when valid is only 24), and mask = (1<<bits)-1.
+ */
+#define look_bits(code,bits,mask) \
+{ \
+ while (valid < (bits)) bitbuf = (bitbuf<<8) | (ulg)get_byte(), valid += 8; \
+ code = (bitbuf >> (valid-(bits))) & (mask); \
+}
+
+/* Skip the given number of bits (after having peeked at them): */
+#define skip_bits(bits) (valid -= (bits))
+
+#define clear_bitbuf() (valid = 0, bitbuf = 0)
+
+/* Local functions */
+
+local void read_tree OF((void));
+local void build_tree OF((void));
+
+/* ===========================================================================
+ * Read the Huffman tree.
+ */
+local void read_tree()
+{
+ int len; /* bit length */
+ int base; /* base offset for a sequence of leaves */
+ int n;
+
+ /* Read the original input size, MSB first */
+ orig_len = 0;
+ for (n = 1; n <= 4; n++) orig_len = (orig_len << 8) | (ulg)get_byte();
+
+ max_len = (int)get_byte(); /* maximum bit length of Huffman codes */
+ if (max_len > MAX_BITLEN) {
+ error("invalid compressed data -- Huffman code > 32 bits");
+ }
+
+ /* Get the number of leaves at each bit length */
+ n = 0;
+ for (len = 1; len <= max_len; len++) {
+ leaves[len] = (int)get_byte();
+ n += leaves[len];
+ }
+ if (n > LITERALS) {
+ error("too many leaves in Huffman tree");
+ }
+ Trace((stderr, "orig_len %lu, max_len %d, leaves %d\n",
+ orig_len, max_len, n));
+ /* There are at least 2 and at most 256 leaves of length max_len.
+ * (Pack arbitrarily rejects empty files and files consisting of
+ * a single byte even repeated.) To fit the last leaf count in a
+ * byte, it is offset by 2. However, the last literal is the EOB
+ * code, and is not transmitted explicitly in the tree, so we must
+ * adjust here by one only.
+ */
+ leaves[max_len]++;
+
+ /* Now read the leaves themselves */
+ base = 0;
+ for (len = 1; len <= max_len; len++) {
+ /* Remember where the literals of this length start in literal[] : */
+ lit_base[len] = base;
+ /* And read the literals: */
+ for (n = leaves[len]; n > 0; n--) {
+ literal[base++] = (uch)get_byte();
+ }
+ }
+ leaves[max_len]++; /* Now include the EOB code in the Huffman tree */
+}
+
+/* ===========================================================================
+ * Build the Huffman tree and the prefix table.
+ */
+local void build_tree()
+{
+ int nodes = 0; /* number of nodes (parents+leaves) at current bit length */
+ int len; /* current bit length */
+ uch *prefixp; /* pointer in prefix_len */
+
+ for (len = max_len; len >= 1; len--) {
+ /* The number of parent nodes at this level is half the total
+ * number of nodes at parent level:
+ */
+ nodes >>= 1;
+ parents[len] = nodes;
+ /* Update lit_base by the appropriate bias to skip the parent nodes
+ * (which are not represented in the literal array):
+ */
+ lit_base[len] -= nodes;
+ /* Restore nodes to be parents+leaves: */
+ nodes += leaves[len];
+ }
+ /* Construct the prefix table, from shortest leaves to longest ones.
+ * The shortest code is all ones, so we start at the end of the table.
+ */
+ peek_bits = MIN(max_len, MAX_PEEK);
+ prefixp = &prefix_len[1<<peek_bits];
+ for (len = 1; len <= peek_bits; len++) {
+ int prefixes = leaves[len] << (peek_bits-len); /* may be 0 */
+ while (prefixes--) *--prefixp = (uch)len;
+ }
+ /* The length of all other codes is unknown: */
+ while (prefixp > prefix_len) *--prefixp = 0;
+}
+
+/* ===========================================================================
+ * Unpack in to out. This routine does not support the old pack format
+ * with magic header \037\037.
+ *
+ * IN assertions: the buffer inbuf contains already the beginning of
+ * the compressed data, from offsets inptr to insize-1 included.
+ * The magic header has already been checked. The output buffer is cleared.
+ */
+int unpack(in, out)
+ int in, out; /* input and output file descriptors */
+{
+ int len; /* Bit length of current code */
+ unsigned eob; /* End Of Block code */
+ register unsigned peek; /* lookahead bits */
+ unsigned peek_mask; /* Mask for peek_bits bits */
+
+ ifd = in;
+ ofd = out;
+
+ read_tree(); /* Read the Huffman tree */
+ build_tree(); /* Build the prefix table */
+ clear_bitbuf(); /* Initialize bit input */
+ peek_mask = (1<<peek_bits)-1;
+
+ /* The eob code is the largest code among all leaves of maximal length: */
+ eob = leaves[max_len]-1;
+ Trace((stderr, "eob %d %x\n", max_len, eob));
+
+ /* Decode the input data: */
+ for (;;) {
+ /* Since eob is the longest code and not shorter than max_len,
+ * we can peek at max_len bits without having the risk of reading
+ * beyond the end of file.
+ */
+ look_bits(peek, peek_bits, peek_mask);
+ len = prefix_len[peek];
+ if (len > 0) {
+ peek >>= peek_bits - len; /* discard the extra bits */
+ } else {
+ /* Code of more than peek_bits bits, we must traverse the tree */
+ ulg mask = peek_mask;
+ len = peek_bits;
+ do {
+ len++, mask = (mask<<1)+1;
+ look_bits(peek, len, mask);
+ } while (peek < (unsigned)parents[len]);
+ /* loop as long as peek is a parent node */
+ }
+ /* At this point, peek is the next complete code, of len bits */
+ if (peek == eob && len == max_len) break; /* end of file? */
+ put_ubyte(literal[peek+lit_base[len]]);
+ Tracev((stderr,"%02d %04x %c\n", len, peek,
+ literal[peek+lit_base[len]]));
+ skip_bits(len);
+ } /* for (;;) */
+
+ flush_window();
+ if (orig_len != (ulg)(bytes_out & 0xffffffff)) {
+ error("invalid compressed data--length error");
+ }
+ return OK;
+}
--- /dev/null
+/* unzip.c -- decompress files in gzip or pkzip format.
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ *
+ * The code in this file is derived from the file funzip.c written
+ * and put in the public domain by Mark Adler.
+ */
+
+/*
+ This version can extract files in gzip or pkzip format.
+ For the latter, only the first entry is extracted, and it has to be
+ either deflated or stored.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: unzip.c,v 0.13 1993/06/10 13:29:00 jloup Exp $";
+#endif
+
+#include <config.h>
+#include "tailor.h"
+#include "gzip.h"
+#include "crypt.h"
+
+/* PKZIP header definitions */
+#define LOCSIG 0x04034b50L /* four-byte lead-in (lsb first) */
+#define LOCFLG 6 /* offset of bit flag */
+#define CRPFLG 1 /* bit for encrypted entry */
+#define EXTFLG 8 /* bit for extended local header */
+#define LOCHOW 8 /* offset of compression method */
+#define LOCTIM 10 /* file mod time (for decryption) */
+#define LOCCRC 14 /* offset of crc */
+#define LOCSIZ 18 /* offset of compressed size */
+#define LOCLEN 22 /* offset of uncompressed length */
+#define LOCFIL 26 /* offset of file name field length */
+#define LOCEXT 28 /* offset of extra field length */
+#define LOCHDR 30 /* size of local header, including sig */
+#define EXTHDR 16 /* size of extended local header, inc sig */
+#define RAND_HEAD_LEN 12 /* length of encryption random header */
+
+
+/* Globals */
+
+int decrypt; /* flag to turn on decryption */
+char *key; /* not used--needed to link crypt.c */
+int pkzip = 0; /* set for a pkzip file */
+int ext_header = 0; /* set if extended local header */
+
+/* ===========================================================================
+ * Check zip file and advance inptr to the start of the compressed data.
+ * Get ofname from the local header if necessary.
+ */
+int check_zipfile(in)
+ int in; /* input file descriptors */
+{
+ uch *h = inbuf + inptr; /* first local header */
+
+ ifd = in;
+
+ /* Check validity of local header, and skip name and extra fields */
+ inptr += LOCHDR + SH(h + LOCFIL) + SH(h + LOCEXT);
+
+ if (inptr > insize || LG(h) != LOCSIG) {
+ fprintf(stderr, "\n%s: %s: not a valid zip file\n",
+ progname, ifname);
+ exit_code = ERROR;
+ return ERROR;
+ }
+ method = h[LOCHOW];
+ if (method != STORED && method != DEFLATED) {
+ fprintf(stderr,
+ "\n%s: %s: first entry not deflated or stored -- use unzip\n",
+ progname, ifname);
+ exit_code = ERROR;
+ return ERROR;
+ }
+
+ /* If entry encrypted, decrypt and validate encryption header */
+ if ((decrypt = h[LOCFLG] & CRPFLG) != 0) {
+ fprintf(stderr, "\n%s: %s: encrypted file -- use unzip\n",
+ progname, ifname);
+ exit_code = ERROR;
+ return ERROR;
+ }
+
+ /* Save flags for unzip() */
+ ext_header = (h[LOCFLG] & EXTFLG) != 0;
+ pkzip = 1;
+
+ /* Get ofname and time stamp from local header (to be done) */
+ return OK;
+}
+
+/* ===========================================================================
+ * Unzip in to out. This routine works on both gzip and pkzip files.
+ *
+ * IN assertions: the buffer inbuf contains already the beginning of
+ * the compressed data, from offsets inptr to insize-1 included.
+ * The magic header has already been checked. The output buffer is cleared.
+ */
+int unzip(in, out)
+ int in, out; /* input and output file descriptors */
+{
+ ulg orig_crc = 0; /* original crc */
+ ulg orig_len = 0; /* original uncompressed length */
+ int n;
+ uch buf[EXTHDR]; /* extended local header */
+ int err = OK;
+
+ ifd = in;
+ ofd = out;
+
+ updcrc(NULL, 0); /* initialize crc */
+
+ if (pkzip && !ext_header) { /* crc and length at the end otherwise */
+ orig_crc = LG(inbuf + LOCCRC);
+ orig_len = LG(inbuf + LOCLEN);
+ }
+
+ /* Decompress */
+ if (method == DEFLATED) {
+
+ int res = inflate();
+
+ if (res == 3) {
+ error("out of memory");
+ } else if (res != 0) {
+ error("invalid compressed data--format violated");
+ }
+
+ } else if (pkzip && method == STORED) {
+
+ register ulg n = LG(inbuf + LOCLEN);
+
+ if (n != LG(inbuf + LOCSIZ) - (decrypt ? RAND_HEAD_LEN : 0)) {
+
+ fprintf(stderr, "len %ld, siz %ld\n", n, LG(inbuf + LOCSIZ));
+ error("invalid compressed data--length mismatch");
+ }
+ while (n--) {
+ uch c = (uch)get_byte();
+ put_ubyte(c);
+ }
+ flush_window();
+ } else {
+ error("internal error, invalid method");
+ }
+
+ /* Get the crc and original length */
+ if (!pkzip) {
+ /* crc32 (see algorithm.doc)
+ * uncompressed input size modulo 2^32
+ */
+ for (n = 0; n < 8; n++) {
+ buf[n] = (uch)get_byte(); /* may cause an error if EOF */
+ }
+ orig_crc = LG(buf);
+ orig_len = LG(buf+4);
+
+ } else if (ext_header) { /* If extended header, check it */
+ /* signature - 4bytes: 0x50 0x4b 0x07 0x08
+ * CRC-32 value
+ * compressed size 4-bytes
+ * uncompressed size 4-bytes
+ */
+ for (n = 0; n < EXTHDR; n++) {
+ buf[n] = (uch)get_byte(); /* may cause an error if EOF */
+ }
+ orig_crc = LG(buf+4);
+ orig_len = LG(buf+12);
+ }
+
+ /* Validate decompression */
+ if (orig_crc != updcrc(outbuf, 0)) {
+ fprintf(stderr, "\n%s: %s: invalid compressed data--crc error\n",
+ progname, ifname);
+ err = ERROR;
+ }
+ if (orig_len != (ulg)(bytes_out & 0xffffffff)) {
+ fprintf(stderr, "\n%s: %s: invalid compressed data--length error\n",
+ progname, ifname);
+ err = ERROR;
+ }
+
+ /* Check if there are more entries in a pkzip file */
+ if (pkzip && inptr + 4 < insize && LG(inbuf+inptr) == LOCSIG) {
+ if (to_stdout) {
+ WARN((stderr,
+ "%s: %s has more than one entry--rest ignored\n",
+ progname, ifname));
+ } else {
+ /* Don't destroy the input zip file */
+ fprintf(stderr,
+ "%s: %s has more than one entry -- unchanged\n",
+ progname, ifname);
+ err = ERROR;
+ }
+ }
+ ext_header = pkzip = 0; /* for next file */
+ if (err == OK) return OK;
+ exit_code = ERROR;
+ if (!test) abort_gzip();
+ return err;
+}
--- /dev/null
+/* util.c -- utility functions for gzip support
+ * Copyright (C) 1997, 1998, 1999, 2001 Free Software Foundation, Inc.
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: util.c,v 0.15 1993/06/15 09:04:13 jloup Exp $";
+#endif
+
+#include <config.h>
+#include <ctype.h>
+#include <errno.h>
+
+#include "tailor.h"
+
+#ifdef HAVE_LIMITS_H
+# include <limits.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+
+#if defined STDC_HEADERS || defined HAVE_STDLIB_H
+# include <stdlib.h>
+#else
+ extern int errno;
+#endif
+
+#include "gzip.h"
+#include "crypt.h"
+
+#ifndef CHAR_BIT
+# define CHAR_BIT 8
+#endif
+
+extern ulg crc_32_tab[]; /* crc table, defined below */
+
+/* ===========================================================================
+ * Copy input to output unchanged: zcat == cat with --force.
+ * IN assertion: insize bytes have already been read in inbuf.
+ */
+int copy(in, out)
+ int in, out; /* input and output file descriptors */
+{
+ errno = 0;
+ while (insize != 0 && (int)insize != -1) {
+ write_buf(out, (char*)inbuf, insize);
+ bytes_out += insize;
+ insize = read(in, (char*)inbuf, INBUFSIZ);
+ }
+ if ((int)insize == -1) {
+ read_error();
+ }
+ bytes_in = bytes_out;
+ return OK;
+}
+
+/* ===========================================================================
+ * Run a set of bytes through the crc shift register. If s is a NULL
+ * pointer, then initialize the crc shift register contents instead.
+ * Return the current crc in either case.
+ */
+ulg updcrc(s, n)
+ uch *s; /* pointer to bytes to pump through */
+ unsigned n; /* number of bytes in s[] */
+{
+ register ulg c; /* temporary variable */
+
+ static ulg crc = (ulg)0xffffffffL; /* shift register contents */
+
+ if (s == NULL) {
+ c = 0xffffffffL;
+ } else {
+ c = crc;
+ if (n) do {
+ c = crc_32_tab[((int)c ^ (*s++)) & 0xff] ^ (c >> 8);
+ } while (--n);
+ }
+ crc = c;
+ return c ^ 0xffffffffL; /* (instead of ~c for 64-bit machines) */
+}
+
+/* ===========================================================================
+ * Clear input and output buffers
+ */
+void clear_bufs()
+{
+ outcnt = 0;
+ insize = inptr = 0;
+ bytes_in = bytes_out = 0L;
+}
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty.
+ */
+int fill_inbuf(eof_ok)
+ int eof_ok; /* set if EOF acceptable as a result */
+{
+ int len;
+
+ /* Read as much as possible */
+ insize = 0;
+ do {
+ len = read(ifd, (char*)inbuf+insize, INBUFSIZ-insize);
+ if (len == 0) break;
+ if (len == -1) {
+ read_error();
+ break;
+ }
+ insize += len;
+ } while (insize < INBUFSIZ);
+
+ if (insize == 0) {
+ if (eof_ok) return EOF;
+ flush_window();
+ errno = 0;
+ read_error();
+ }
+ bytes_in += (off_t)insize;
+ inptr = 1;
+ return inbuf[0];
+}
+
+/* ===========================================================================
+ * Write the output buffer outbuf[0..outcnt-1] and update bytes_out.
+ * (used for the compressed data only)
+ */
+void flush_outbuf()
+{
+ if (outcnt == 0) return;
+
+ write_buf(ofd, (char *)outbuf, outcnt);
+ bytes_out += (off_t)outcnt;
+ outcnt = 0;
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+void flush_window()
+{
+ if (outcnt == 0) return;
+ updcrc(window, outcnt);
+
+ if (!test) {
+ write_buf(ofd, (char *)window, outcnt);
+ }
+ bytes_out += (off_t)outcnt;
+ outcnt = 0;
+}
+
+/* ===========================================================================
+ * Does the same as write(), but also handles partial pipe writes and checks
+ * for error return.
+ */
+void write_buf(fd, buf, cnt)
+ int fd;
+ voidp buf;
+ unsigned cnt;
+{
+ unsigned n;
+
+ while ((n = write(fd, buf, cnt)) != cnt) {
+ if (n == (unsigned)(-1)) {
+ write_error();
+ }
+ cnt -= n;
+ buf = (voidp)((char*)buf+n);
+ }
+}
+
+/* ========================================================================
+ * Put string s in lower case, return s.
+ */
+char *strlwr(s)
+ char *s;
+{
+ char *t;
+ for (t = s; *t; t++)
+ *t = tolow ((unsigned char) *t);
+ return s;
+}
+
+/* ========================================================================
+ * Return the base name of a file (remove any directory prefix and
+ * any version suffix). For systems with file names that are not
+ * case sensitive, force the base name to lower case.
+ */
+char *base_name(fname)
+ char *fname;
+{
+ char *p;
+
+ if ((p = strrchr(fname, PATH_SEP)) != NULL) fname = p+1;
+#ifdef PATH_SEP2
+ if ((p = strrchr(fname, PATH_SEP2)) != NULL) fname = p+1;
+#endif
+#ifdef PATH_SEP3
+ if ((p = strrchr(fname, PATH_SEP3)) != NULL) fname = p+1;
+#endif
+#ifdef SUFFIX_SEP
+ if ((p = strrchr(fname, SUFFIX_SEP)) != NULL) *p = '\0';
+#endif
+ if (casemap('A') == 'a') strlwr(fname);
+ return fname;
+}
+
+/* ========================================================================
+ * Unlink a file, working around the unlink readonly bug (if present).
+ */
+int xunlink (filename)
+ char *filename;
+{
+ int r = unlink (filename);
+
+#ifdef UNLINK_READONLY_BUG
+ if (r != 0)
+ {
+ int e = errno;
+ if (chmod (filename, S_IWUSR) != 0)
+ {
+ errno = e;
+ return -1;
+ }
+
+ r = unlink (filename);
+ }
+#endif
+
+ return r;
+}
+
+/* ========================================================================
+ * Make a file name legal for file systems not allowing file names with
+ * multiple dots or starting with a dot (such as MSDOS), by changing
+ * all dots except the last one into underlines. A target dependent
+ * function can be used instead of this simple function by defining the macro
+ * MAKE_LEGAL_NAME in tailor.h and providing the function in a target
+ * dependent module.
+ */
+void make_simple_name(name)
+ char *name;
+{
+ char *p = strrchr(name, '.');
+ if (p == NULL) return;
+ if (p == name) p++;
+ do {
+ if (*--p == '.') *p = '_';
+ } while (p != name);
+}
+
+
+#if !defined HAVE_STRING_H && !defined STDC_HEADERS
+
+/* Provide missing strspn and strcspn functions. */
+
+# ifndef __STDC__
+# define const
+# endif
+
+int strspn OF((const char *s, const char *accept));
+int strcspn OF((const char *s, const char *reject));
+
+/* ========================================================================
+ * Return the length of the maximum initial segment
+ * of s which contains only characters in accept.
+ */
+int strspn(s, accept)
+ const char *s;
+ const char *accept;
+{
+ register const char *p;
+ register const char *a;
+ register int count = 0;
+
+ for (p = s; *p != '\0'; ++p) {
+ for (a = accept; *a != '\0'; ++a) {
+ if (*p == *a) break;
+ }
+ if (*a == '\0') return count;
+ ++count;
+ }
+ return count;
+}
+
+/* ========================================================================
+ * Return the length of the maximum inital segment of s
+ * which contains no characters from reject.
+ */
+int strcspn(s, reject)
+ const char *s;
+ const char *reject;
+{
+ register int count = 0;
+
+ while (*s != '\0') {
+ if (strchr(reject, *s++) != NULL) return count;
+ ++count;
+ }
+ return count;
+}
+
+#endif
+
+/* ========================================================================
+ * Add an environment variable (if any) before argv, and update argc.
+ * Return the expanded environment variable to be freed later, or NULL
+ * if no options were added to argv.
+ */
+#define SEPARATOR " \t" /* separators in env variable */
+
+char *add_envopt(argcp, argvp, env)
+ int *argcp; /* pointer to argc */
+ char ***argvp; /* pointer to argv */
+ char *env; /* name of environment variable */
+{
+ char *p; /* running pointer through env variable */
+ char **oargv; /* runs through old argv array */
+ char **nargv; /* runs through new argv array */
+ int oargc = *argcp; /* old argc */
+ int nargc = 0; /* number of arguments in env variable */
+
+ env = (char*)getenv(env);
+ if (env == NULL) return NULL;
+
+ p = (char*)xmalloc(strlen(env)+1);
+ env = strcpy(p, env); /* keep env variable intact */
+
+ for (p = env; *p; nargc++ ) { /* move through env */
+ p += strspn(p, SEPARATOR); /* skip leading separators */
+ if (*p == '\0') break;
+
+ p += strcspn(p, SEPARATOR); /* find end of word */
+ if (*p) *p++ = '\0'; /* mark it */
+ }
+ if (nargc == 0) {
+ free(env);
+ return NULL;
+ }
+ *argcp += nargc;
+ /* Allocate the new argv array, with an extra element just in case
+ * the original arg list did not end with a NULL.
+ */
+ nargv = (char**)calloc(*argcp+1, sizeof(char *));
+ if (nargv == NULL) error("out of memory");
+ oargv = *argvp;
+ *argvp = nargv;
+
+ /* Copy the program name first */
+ if (oargc-- < 0) error("argc<=0");
+ *(nargv++) = *(oargv++);
+
+ /* Then copy the environment args */
+ for (p = env; nargc > 0; nargc--) {
+ p += strspn(p, SEPARATOR); /* skip separators */
+ *(nargv++) = p; /* store start */
+ while (*p++) ; /* skip over word */
+ }
+
+ /* Finally copy the old args and add a NULL (usual convention) */
+ while (oargc--) *(nargv++) = *(oargv++);
+ *nargv = NULL;
+ return env;
+}
+
+/* ========================================================================
+ * Error handlers.
+ */
+void error(m)
+ char *m;
+{
+ fprintf(stderr, "\n%s: %s: %s\n", progname, ifname, m);
+ abort_gzip();
+}
+
+void warning (m)
+ char *m;
+{
+ WARN ((stderr, "%s: %s: warning: %s\n", progname, ifname, m));
+}
+
+void read_error()
+{
+ int e = errno;
+ fprintf(stderr, "\n%s: ", progname);
+ if (e != 0) {
+ errno = e;
+ perror(ifname);
+ } else {
+ fprintf(stderr, "%s: unexpected end of file\n", ifname);
+ }
+ abort_gzip();
+}
+
+void write_error()
+{
+ int e = errno;
+ fprintf(stderr, "\n%s: ", progname);
+ errno = e;
+ perror(ofname);
+ abort_gzip();
+}
+
+/* ========================================================================
+ * Display compression ratio on the given stream on 6 characters.
+ */
+void display_ratio(num, den, file)
+ off_t num;
+ off_t den;
+ FILE *file;
+{
+ fprintf(file, "%5.1f%%", den == 0 ? 0 : 100.0 * num / den);
+}
+
+/* ========================================================================
+ * Print an off_t. There's no completely portable way to use printf,
+ * so we do it ourselves.
+ */
+void fprint_off(file, offset, width)
+ FILE *file;
+ off_t offset;
+ int width;
+{
+ char buf[CHAR_BIT * sizeof (off_t)];
+ char *p = buf + sizeof buf;
+ int negative = offset < 0;
+ /* Don't negate offset here; it might overflow. */
+ do {
+ int remainder = offset % 10;
+ int quotient = offset / 10;
+ if (offset < 0 && 0 < remainder) {
+ remainder -= 10;
+ quotient++;
+ }
+ *--p = (remainder < 0 ? -remainder : remainder) + '0';
+ width--;
+ offset = quotient;
+ } while (offset != 0);
+ for (width -= negative; 0 < width; width--) {
+ putc (' ', file);
+ }
+ if (negative) {
+ putc ('-', file);
+ }
+ for (; p < buf + sizeof buf; p++)
+ putc (*p, file);
+}
+
+/* ========================================================================
+ * Semi-safe malloc -- never returns NULL.
+ */
+voidp xmalloc (size)
+ unsigned size;
+{
+ voidp cp = (voidp)malloc (size);
+
+ if (cp == NULL) error("out of memory");
+ return cp;
+}
+
+/* ========================================================================
+ * Table of CRC-32's of all single-byte values (made by makecrc.c)
+ */
+ulg crc_32_tab[] = {
+ 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
+ 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
+ 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
+ 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
+ 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
+ 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
+ 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
+ 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
+ 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
+ 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
+ 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
+ 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
+ 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
+ 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
+ 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
+ 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
+ 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
+ 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
+ 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
+ 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
+ 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
+ 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
+ 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
+ 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
+ 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
+ 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
+ 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
+ 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
+ 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
+ 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
+ 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
+ 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
+ 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
+ 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
+ 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
+ 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
+ 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
+ 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
+ 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
+ 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
+ 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
+ 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
+ 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
+ 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+ 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
+ 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
+ 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
+ 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+ 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
+ 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
+ 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
+ 0x2d02ef8dL
+};
--- /dev/null
+# Makefile for gzip (GNU zip) -*- Indented-Text -*-
+# Copyright (C) 1992-1993 Jean-loup Gailly and the Free Software Foundation
+# VMS version made by Klaus Reimann <kr@cip.physik.uni-stuttgart.de>,
+# revised by Roland B Roberts <roberts@nsrl31.nsrl.rochester.edu>.
+# This version is for gcc.
+
+# After constructing gzip.exe with this Makefile, you should set up
+# symbols for gzip.exe. Edit the example below, changing
+# "disk:[directory]" as appropriate.
+#
+# $ gzip == "$disk:[directory]gzip.exe"
+# $ gunzip == "$disk:[directory]gunzip.exe"
+# $ zcat == "$disk:[directory]zcat.exe"
+
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+#### Start of system configuration section. ####
+
+CC = gcc
+LINK = link
+
+CFLAGS =
+# CFLAGS = /warning
+LDFLAGS =
+
+# Things you might add to DEFS
+# -DDIRENT Use <dirent.h> for recursion (-r)
+# -DSYSDIR Use <sys/dir.h> for recursion (-r)
+# -DSYSNDIR Use <sys/ndir.h> for recursion (-r)
+# -DNDIR Use <ndir.h> for recursion (-r)
+# -DSTDC_HEADERS Use <stdlib.h>
+# -DHAVE_UNISTD_H Use <unistd.h>
+# -DNO_UTIME_H Don't use <utime.h>
+# -DHAVE_SYSUTIME_H Use <sys/utime.h>
+# -DNO_MEMORY_H Don't use <memory.h>. Not needed if STDC_HEADERS.
+# -DNO_STRING_H Use strings.h, not string.h. Not needed if STDC_HEADERS
+# -DRETSIGTYPE=int Define this if signal handlers must return an int.
+# -DNO_SYMLINK OS defines S_IFLNK but does not support symbolic links
+# -DNO_MULTIPLE_DOTS System does not allow file names with multiple dots
+# -DNO_UTIME System does not support setting file modification time
+# -DNO_CHOWN System does not support setting file owner
+# -DNO_DIR System does not support readdir()
+# -DPROTO Force function prototypes even if __STDC__ not defined
+# -DASMV Use asm version match.S
+# -DMSDOS MSDOS specific
+# -DOS2 OS/2 specific
+# -DVAXC Vax/VMS with Vax C compiler
+# -DVMS Vax/VMS with gcc
+# -DDEBUG Debug code
+# -DDYN_ALLOC Use dynamic allocation of large data structures
+# -DMAXSEG_64K Maximum array size is 64K (for 16 bit system)
+# -DRECORD_IO read() and write() are rounded to record sizes.
+# -DNO_STDIN_FSTAT fstat() is not available on stdin
+# -DNO_SIZE_CHECK stat() does not give a reliable file size
+
+DEFS = /define=(VMS)
+LIBS = #@LIBS@
+
+X=.exe
+O=.obj
+
+# additional assembly sources for particular systems be required.
+OBJA = #@OBJA@
+
+#### End of system configuration section. ####
+
+OBJS = gzip$O zip$O deflate$O trees$O bits$O unzip$O inflate$O util$O \
+ crypt$O lzw$O unlzw$O unpack$O unlzh$O getopt$O vms$O $(OBJA)
+
+# --- rules ---
+
+*$O: *.c
+ $(CC) $* $(DEFS) $(CFLAGS)
+# create sys$output
+# $(CC) $* $(DEFS) $(CFLAGS)$
+
+default: all
+
+all: gzip$X #zcmp zdiff zmore znew
+
+gzip$X : $(OBJS) #Makefile
+ linkobjs:=$(OBJS)
+ Schleife:
+ p = f$locate(" ",linkobjs)
+ if p .lt. f$length(linkobjs)
+ then linkobjs[p,1]:=","
+ goto Schleife
+ endif
+ write sys$output "linking ''linkobjs'"
+ $(LINK) $(LDFLAGS) /exec=gzip$X 'linkobjs',sys$input/opt
+ GNU_CC:[000000]GCCLIB/LIB,SYS$LIBRARY:VAXCRTL/SHARE $
+
+# Create a hard link. To remove both files, use "make clean". Using a hard
+# link saves disk space, by the way. Note, however, that copying a hard link
+# copies the data, not just the link. Therefore, set up the link in the
+# directory in which the executable is to reside, or else rename (move) the
+# executables into the directory.
+#
+ set file/enter=gunzip.exe gzip.exe
+ set file/enter=zcat.exe gzip.exe
+
+
+clean:
+ set file/remove gunzip.exe;0
+ set file/remove zcat.exe;0
+ delete gzip.exe;0
+ delete *$O;0
+
+# Actual build-related targets
+
+gzip$O zip$O deflate$O trees$O bits$O unzip$O inflate$O: gzip.h tailor.h
+util$O lzw$O unlzw$O unpack$O unlzh$O crypt$O: gzip.h tailor.h
+
+gzip$O unlzw$O: revision.h lzw.h
+
+bits$O unzip$O util$O zip$O: crypt.h
+
+gzip$O getopt$O: getopt.h
--- /dev/null
+# Makefile for gzip (GNU zip) -*- Indented-Text -*-
+# Copyright (C) 1992-1993 Jean-loup Gailly and the Free Software Foundation
+# VMS version made by Klaus Reimann <kr@cip.physik.uni-stuttgart.de>,
+# revised by Roland B Roberts <roberts@nsrl31.nsrl.rochester.edu>
+# and Karl-Jose Filler <pla_jfi@pki-nbg.philips.de>
+# This version is for VAXC with MMS.
+
+# After constructing gzip.exe with this Makefile, you should set up
+# symbols for gzip.exe. Edit the example below, changing
+# "disk:[directory]" as appropriate.
+#
+# $ gzip == "$disk:[directory]gzip.exe"
+# $ gunzip == "$disk:[directory]gunzip.exe"
+# $ zcat == "$disk:[directory]zcat.exe"
+
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+#### Start of system configuration section. ####
+
+CC = cc
+LINK = link
+
+CFLAGS =
+# CFLAGS = /warning
+LDFLAGS =
+
+# Things you might add to DEFS
+# -DDIRENT Use <dirent.h> for recursion (-r)
+# -DSYSDIR Use <sys/dir.h> for recursion (-r)
+# -DSYSNDIR Use <sys/ndir.h> for recursion (-r)
+# -DNDIR Use <ndir.h> for recursion (-r)
+# -DSTDC_HEADERS Use <stdlib.h>
+# -DHAVE_UNISTD_H Use <unistd.h>
+# -DNO_UTIME_H Don't use <utime.h>
+# -DHAVE_SYSUTIME_H Use <sys/utime.h>
+# -DNO_MEMORY_H Don't use <memory.h>. Not needed if STDC_HEADERS.
+# -DNO_STRING_H Use strings.h, not string.h. Not needed if STDC_HEADERS
+# -DRETSIGTYPE=int Define this if signal handlers must return an int.
+# -DNO_SYMLINK OS defines S_IFLNK but does not support symbolic links
+# -DNO_MULTIPLE_DOTS System does not allow file names with multiple dots
+# -DNO_UTIME System does not support setting file modification time
+# -DNO_CHOWN System does not support setting file owner
+# -DNO_DIR System does not support readdir()
+# -DPROTO Force function prototypes even if __STDC__ not defined
+# -DASMV Use asm version match.S
+# -DMSDOS MSDOS specific
+# -DOS2 OS/2 specific
+# -DVAXC Vax/VMS with Vax C compiler
+# -DVMS Vax/VMS with gcc
+# -DDEBUG Debug code
+# -DDYN_ALLOC Use dynamic allocation of large data structures
+# -DMAXSEG_64K Maximum array size is 64K (for 16 bit system)
+# -DRECORD_IO read() and write() are rounded to record sizes.
+# -DNO_STDIN_FSTAT fstat() is not available on stdin
+# -DNO_SIZE_CHECK stat() does not give a reliable file size
+
+# DEFS = /define=(VAXC)
+DEFS =
+LIBS =
+
+X=.exe
+O=.obj
+
+# additional assembly sources for particular systems be required.
+OBJA =
+
+#### End of system configuration section. ####
+
+OBJS = gzip.obj zip.obj deflate.obj trees.obj bits.obj unzip.obj inflate.obj \
+ util.obj crypt.obj lzw.obj unlzw.obj unpack.obj unlzh.obj getopt.obj \
+ vms.obj $(OBJA)
+
+# --- rules ---
+
+.c.obj :
+ define/user sys sys$library
+ $(CC) $* $(DEFS) $(CFLAGS)
+# create sys.output
+# $(CC) $* $(DEFS) $(CFLAGS)$
+
+gzip.exe : $(OBJS)
+ define lnk$library sys$share:vaxcrtl
+ $(LINK) $(LDFLAGS) /exec=gzip $+
+#
+# Create a hard link. To remove both files, use "make clean". Using a hard
+# link saves disk space, by the way. Note, however, that copying a hard link
+# copies the data, not just the link. Therefore, set up the link in the
+# directory in which the executable is to reside, or else rename (move) the
+# executables into the directory.
+#
+ set file/enter=gunzip.exe gzip.exe
+ set file/enter=zcat.exe gzip.exe
+
+clean :
+ set file/remove gunzip.exe;0
+ set file/remove zcat.exe;0
+ delete gzip.exe;0
+ delete *.obj;0
+
+# Actual build-related targets
+
+gzip.obj zip.obj deflate.obj trees.obj bits.obj unzip.obj inflate.obj : gzip.h tailor.h
+util.obj lzw.obj unlzw.obj unpack.obj unlzh.obj crypt.obj : gzip.h tailor.h
+
+gzip.obj unlzw.obj : revision.h lzw.h
+
+bits.obj unzip.obj util.obj zip.obj : crypt.h
+
+gzip.obj getopt.obj : getopt.h
--- /dev/null
+# Makefile for gzip (GNU zip) -*- Indented-Text -*-
+# Copyright (C) 1992-1993 Jean-loup Gailly and the Free Software Foundation
+# VMS version made by Klaus Reimann <kr@cip.physik.uni-stuttgart.de>,
+# revised by Roland B Roberts <roberts@nsrl31.nsrl.rochester.edu>.
+# This version is for VAXC. Tested with Todd Aven's MAKE/VMS.
+
+# After constructing gzip.exe with this Makefile, you should set up
+# symbols for gzip.exe. Edit the example below, changing
+# "disk:[directory]" as appropriate.
+#
+# $ gzip == "$disk:[directory]gzip.exe"
+# $ gunzip == "$disk:[directory]gunzip.exe"
+# $ zcat == "$disk:[directory]zcat.exe"
+
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+#### Start of system configuration section. ####
+
+CC = cc
+LINK = link
+
+CFLAGS =
+# CFLAGS = /warning
+LDFLAGS =
+
+# Things you might add to DEFS
+# -DDIRENT Use <dirent.h> for recursion (-r)
+# -DSYSDIR Use <sys/dir.h> for recursion (-r)
+# -DSYSNDIR Use <sys/ndir.h> for recursion (-r)
+# -DNDIR Use <ndir.h> for recursion (-r)
+# -DSTDC_HEADERS Use <stdlib.h>
+# -DHAVE_UNISTD_H Use <unistd.h>
+# -DNO_UTIME_H Don't use <utime.h>
+# -DHAVE_SYSUTIME_H Use <sys/utime.h>
+# -DNO_MEMORY_H Don't use <memory.h>. Not needed if STDC_HEADERS.
+# -DNO_STRING_H Use strings.h, not string.h. Not needed if STDC_HEADERS
+# -DRETSIGTYPE=int Define this if signal handlers must return an int.
+# -DNO_SYMLINK OS defines S_IFLNK but does not support symbolic links
+# -DNO_MULTIPLE_DOTS System does not allow file names with multiple dots
+# -DNO_UTIME System does not support setting file modification time
+# -DNO_CHOWN System does not support setting file owner
+# -DNO_DIR System does not support readdir()
+# -DPROTO Force function prototypes even if __STDC__ not defined
+# -DASMV Use asm version match.S
+# -DMSDOS MSDOS specific
+# -DOS2 OS/2 specific
+# -DVAXC Vax/VMS with Vax C compiler
+# -DVMS Vax/VMS with gcc
+# -DDEBUG Debug code
+# -DDYN_ALLOC Use dynamic allocation of large data structures
+# -DMAXSEG_64K Maximum array size is 64K (for 16 bit system)
+# -DRECORD_IO read() and write() are rounded to record sizes.
+# -DNO_STDIN_FSTAT fstat() is not available on stdin
+# -DNO_SIZE_CHECK stat() does not give a reliable file size
+
+# DEFS = /define=(VAXC)
+DEFS =
+LIBS =
+
+X=.exe
+O=.obj
+
+# additional assembly sources for particular systems be required.
+OBJA =
+
+#### End of system configuration section. ####
+
+OBJS = gzip$O zip$O deflate$O trees$O bits$O unzip$O inflate$O util$O \
+ crypt$O lzw$O unlzw$O unpack$O unlzh$O getopt$O vms$O $(OBJA)
+
+# --- rules ---
+
+*$O: *.c
+ define/user sys sys$library
+ $(CC) $* $(DEFS) $(CFLAGS)
+# create sys$output
+# $(CC) $* $(DEFS) $(CFLAGS)$
+
+default: all
+
+all: gzip$X #zcmp zdiff zmore znew
+
+gzip$X : $(OBJS) #Makefile
+ linkobjs:=$(OBJS)
+ Schleife:
+ p = f$locate(" ",linkobjs)
+ if p .lt. f$length(linkobjs)
+ then linkobjs[p,1]:=","
+ goto Schleife
+ endif
+ write sys$output "linking ''linkobjs'"
+ $(LINK) $(LDFLAGS) /exec=gzip$X 'linkobjs',sys$input/opt
+ SYS$LIBRARY:VAXCRTL/SHARE $
+#
+# Create a hard link. To remove both files, use "make clean". Using a hard
+# link saves disk space, by the way. Note, however, that copying a hard link
+# copies the data, not just the link. Therefore, set up the link in the
+# directory in which the executable is to reside, or else rename (move) the
+# executables into the directory.
+#
+ set file/enter=gunzip.exe gzip.exe
+ set file/enter=zcat.exe gzip.exe
+
+
+clean:
+ set file/remove gunzip.exe;0
+ set file/remove zcat.exe;0
+ delete gzip.exe;0
+ delete *$O;0
+
+# Actual build-related targets
+
+gzip$O zip$O deflate$O trees$O bits$O unzip$O inflate$O: gzip.h tailor.h
+util$O lzw$O unlzw$O unpack$O unlzh$O crypt$O: gzip.h tailor.h
+
+gzip$O unlzw$O: revision.h lzw.h
+
+bits$O unzip$O util$O zip$O: crypt.h
+
+gzip$O getopt$O: getopt.h
--- /dev/null
+README file for gzip on VMS
+written by Klaus Reimann <kr@cip.physik.uni-stuttgart.de>
+
+Here is a list of the files in [.vms]:
+
+GZIP.HLP ! Help-file, how to use gzip
+MAKEFILE.GCC ! Description for (vms-)make, using gcc
+MAKEFILE.MMS ! Description for MMS-utility, using vaxc
+MAKEFILE.VMS ! Description for (vms-)make, using vaxc
+MAKEGZIP.COM ! simple and robust DCL-Script, using vaxc
+README.VMS ! this file, how to install gzip
+VMS.C ! VMS-specific functions in gzip
+
+This file describe, how to compile and install the VMS-Port of gzip.
+>>For restrictions or bugs due to the structure of the vms-filesystem
+refer to gzip.hlp.<<
+
+Installing gzip
+
+Since there are many makefiles there are many possibilities
+compiling and installing gzip. For most of them, it is important,
+that you start them from the SOURCE-Directory (that is where
+gzip.c is), not from the [.vms]-directory. Otherwise the compiler
+won't find the source-files.
+
+Using gcc saves disk-space, but needs longer to compile
+ VAXC gzip.exe 95/96 Blocks
+ gcc2.3.3 gzip.exe 86/87 Blocks
+
+To install gzip one has to perform the following steps:
+ 1. compile sources (*.c, [.vms]*.c)
+ 2. link executable gzip.exe
+ 3. Make entries gunzip.exe and zcat.exe to gzip.exe.
+ These are similar to hardlinks in UNIX
+ >>If You wish to do this by hand, see for example makegzip.com.<<
+ The Entries can't be simply deleted, use 'set file /remove' .
+
+ 4. Rename executables (*.exe) to Your prefered exe-directory. If it is on
+ another Device, then you should only copy gzip.exe and do the
+ entries gunzip.exe and zcat.exe by hand (3.).
+
+ 5. Setting up Symbols for the executables:
+ Place the following lines in Your login.com
+ Change "disk:[directory]" as appropriate.
+ $ gzip == "$disk:[directory]gzip.exe"
+ $ gunzip == "$disk:[directory]gunzip.exe"
+ $ zcat == "$disk:[directory]zcat.exe"
+ 6. insert help-file gzip.hlp in any Help-library,
+ for example in sys$help:helplib.
+ this can be done by $lib sys$help:helplib/help gzip
+ (I did not try this command)
+
+Steps (4.)5. through 6 must be done by hand.
+Steps 1 through 3(4.) may be done by one of the makefiles:
+
+a) MAKEGZIP.COM
+This was crated from MAKEFILE.VMS and later on edited. It uses the
+VAXC-Compiler and does compiling, linking and making the entries.
+Usage:
+- change to the Source-Directory
+- copy vms.c
+ $copy [.vms]vms.c []
+- start compiling, linking, entries
+ $@[.vms]makegzip
+if everything is OK. then you get gzip.exe, gunzip.exe, zcat.exe
+continue at Step 4.
+
+b) MAKEFILE.VMS
+Makefile for a vms-make utility (NOT gnu-make).
+Is uses the VAXC-Compiler and has the Advantage over MAKEGZIP.COM
+that make checks dependencies. This is helpfull if You have to
+recompile several times, for example after editing the sources.
+- change to the Source-Directory
+- copy vms.c
+ $copy [.vms]vms.c []
+- start compiling, linking, entries
+ $make /input=[.vms]makefile.vms
+if everything is OK. then you get gzip.exe, gunzip.exe, zcat.exe
+Continue at Step 4.
+
+c) MAKEFILE.GCC
+Same as MAKEFILE.VMS, but uses gcc
+- Use $make /input=[.vms]makefile.gcc instead of make ....
+
+d) MAKEFILE.MMS
+Makefile for the MMS-utility. Similar to MAKEFILE.VMS
+- Use $mms /description=[.vms]makefile.mms instead of make ....
--- /dev/null
+1 GZIP
+NAME
+ gzip, gunzip, zcat - compress or expand files
+
+SYNOPSIS
+ gzip [ -acdfhlLnNrtvV19 ] [-S suffix] [ name ... ]
+ gunzip [ -acfhlLnNrtvV ] [-S suffix] [ name ... ]
+ zcat [ -fhLV ] [ name ... ]
+
+2 DESCRIPTION
+ Gzip reduces the size of the named files using Lempel-Ziv
+ coding (LZ77). Whenever possible, each file is replaced by
+ one with the extension .gz, while keeping the same ownership
+ modes, access and modification times. (The default exten-
+ sion is -gz for VMS, z for MSDOS, OS/2 FAT, Windows NT FAT
+ and Atari.) If no files are specified, or if a file name is
+ "-", the standard input is compressed to the standard out-
+ put. Gzip will only attempt to compress regular files.
+
+ If the compressed file name is too long for its file system,
+ gzip truncates it. Gzip attempts to truncate only the parts
+ of the file name longer than 3 characters. (A part is del-
+ imited by dots.) If the name consists of small parts only,
+ the longest parts are truncated. For example, if file names
+ are limited to 14 characters, gzip.msdos.exe is compressed
+ to gzi.msd.exe.gz. Names are not truncated on systems which
+ do not have a limit on file name length.
+
+ By default, gzip keeps the original file name and timestamp
+ in the compressed file. These are used when decompressing
+ the file with the -N option. This is useful when the
+ compressed file name was truncated or when the time stamp
+ was not preserved after a file transfer.
+
+ Compressed files can be restored to their original form
+ using gzip -d or gunzip or zcat. If the original name saved
+ in the compressed file is not suitable for its file system,
+ a new name is constructed from the original one to make it
+ legal.
+
+ gunzip takes a list of files on its command line and
+ replaces each file whose name ends with .gz, -gz, .z, -z, _z
+ or .Z and which begins with the correct magic number with an
+ uncompressed file without the original extension. gunzip
+ also recognizes the special extensions .tgz and .taz as
+ shorthands for .tar.gz and .tar.Z respectively. When
+ compressing, gzip uses the .tgz extension if necessary
+ instead of truncating a file with a .tar extension.
+
+ gunzip can currently decompress files created by gzip, zip,
+ compress, compress -H or pack. The detection of the input
+ format is automatic. When using the first two formats,
+ gunzip checks a 32 bit CRC. For pack, gunzip checks the
+ uncompressed length. The standard compress format was not
+ designed to allow consistency checks. However gunzip is
+ sometimes able to detect a bad .Z file. If you get an error
+ when uncompressing a .Z file, do not assume that the .Z file
+ is correct simply because the standard uncompress does not
+ complain. This generally means that the standard uncompress
+ does not check its input, and happily generates garbage out-
+ put. The SCO compress -H format (lzh compression method)
+ does not include a CRC but also allows some consistency
+ checks.
+
+ Files created by zip can be uncompressed by gzip only if
+ they have a single member compressed with the 'deflation'
+ method. This feature is only intended to help conversion of
+ tar.zip files to the tar.gz format. To extract zip files
+ with several members, use unzip instead of gunzip.
+
+ zcat is identical to gunzip -c. (On some systems, zcat may
+ be installed as gzcat to preserve the original link to
+ compress.) zcat uncompresses either a list of files on the
+ command line or its standard input and writes the
+ uncompressed data on standard output. zcat will uncompress
+ files that have the correct magic number whether they have a
+ .gz suffix or not.
+
+ Gzip uses the Lempel-Ziv algorithm used in zip and PKZIP.
+ The amount of compression obtained depends on the size of
+ the input and the distribution of common substrings. Typi-
+ cally, text such as source code or English is reduced by
+ 60-70%. Compression is generally much better than that
+ achieved by LZW (as used in compress), Huffman coding (as
+ used in pack), or adaptive Huffman coding (compact).
+
+ Compression is always performed, even if the compressed file
+ is slightly larger than the original. The worst case expan-
+ sion is a few bytes for the gzip file header, plus 5 bytes
+ every 32K block, or an expansion ratio of 0.015% for large
+ files. Note that the actual number of used disk blocks
+ almost never increases. gzip preserves the mode, ownership
+ and timestamps of files when compressing or decompressing.
+
+2 OPTIONS
+ -a --ascii
+ Ascii text mode: convert end-of-lines using local con-
+ ventions. This option is supported only on some non-
+ Unix systems. For MSDOS, CR LF is converted to LF when
+ compressing, and LF is converted to CR LF when
+ decompressing.
+
+ -c --stdout --to-stdout
+ Write output on standard output; keep original files
+ unchanged. If there are several input files, the out-
+ put consists of a sequence of independently compressed
+ members. To obtain better compression, concatenate all
+ input files before compressing them.
+
+ -d --decompress --uncompress
+ Decompress.
+
+ -f --force
+ Force compression or decompression even if the file has
+ multiple links or the corresponding file already
+ exists, or if the compressed data is read from or writ-
+ ten to a terminal. If the input data is not in a format
+ recognized by gzip, and if the option --stdout is also
+ given, copy the input data without change to the stan-
+ dard ouput: let zcat behave as cat. If -f is not given,
+ and when not running in the background, gzip prompts to
+ verify whether an existing file should be overwritten.
+
+ -h --help
+ Display a help screen and quit.
+
+ -l --list
+ For each compressed file, list the following fields:
+
+ compressed size: size of the compressed file
+ uncompressed size: size of the uncompressed file
+ ratio: compression ratio (0.0% if unknown)
+ uncompressed_name: name of the uncompressed file
+
+ The uncompressed size is given as -1 on VMS because it
+ it is not possible to seek reliably to the end of the
+ compressed file, where this size is stored.
+
+ In combination with the --verbose option, the following
+ fields are also displayed:
+
+ method: compression method
+ crc: the 32-bit CRC of the uncompressed data
+ date & time: time stamp for the uncompressed file
+
+ The compression methods currently supported are
+ deflate, compress, lzh (SCO compress -H) and pack. The
+ crc is given as ffffffff on VMS for the reason given
+ above about the uncompressed size.
+
+ With --name, the uncompressed name, date and time are
+ those stored within the compress file if present.
+
+ With --verbose, the size totals and compression ratio
+ for all files is also displayed, unless some sizes are
+ unknown. With --quiet, the title and totals lines are
+ not displayed.
+
+ -L --license
+ Display the gzip license and quit.
+
+ -n --no-name
+ When compressing, do not save the original file name
+ and time stamp by default. (The original name is always
+ saved if the name had to be truncated.) When
+ decompressing, do not restore the original file name if
+ present (remove only the gzip suffix from the
+ compressed file name) and do not restore the original
+ time stamp if present (copy it from the compressed
+ file). This option is the default when decompressing.
+
+ -N --name
+ When compressing, always save the original file name
+ and time stamp; this is the default. When decompress-
+ ing, restore the original file name and time stamp if
+ present. This option is useful on systems which have a
+ limit on file name length or when the time stamp has
+ been lost after a file transfer.
+
+ -q --quiet
+ Suppress all warnings.
+
+ -r --recursive
+ Travel the directory structure recursively. If any of
+ the file names specified on the command line are direc-
+ tories, gzip will descend into the directory and
+ compress all the files it finds there (or decompress
+ them in the case of gunzip ).
+
+ -S suf --suffix suf
+ Use suffix suf instead of -gz. Any suffix can be
+ given, but suffixes other than -z and -gz should be
+ avoided to avoid confusion when files are transferred
+ to other. A null suffix forces gunzip to try
+ decompression on all given files regardless of suffix,
+ as in:
+
+ gunzip --suffix "" *.*
+
+ Previous versions of gzip used the -z suffix. This was
+ changed to avoid a conflict with pack on Unix.
+
+ -t --test
+ Test. Check the compressed file integrity.
+
+ -v --verbose
+ Verbose. Display the name and percentage reduction for
+ each file compressed or decompressed.
+
+ -V --version
+ Version. Display the version number and compilation
+ options then quit.
+
+ -# --fast --best
+ Regulate the speed of compression using the specified
+ digit #, where -1 or --fast indicates the fastest
+ compression method (less compression) and -9 or --best
+ indicates the slowest compression method (best compres-
+ sion). The default compression level is -6 (that is,
+ biased towards high compression at expense of speed).
+
+2 ENVIRONMENT
+ The environment variable GZIP_OPT can hold a set of default
+ options for gzip. These options are interpreted first and
+ can be overwritten by explicit command line parameters. For
+ example:
+ define GZIP_OPT "-8 -v"
+
+2 SEE ALSO
+ compress, zip, unzip
+
+2 DIAGNOSTICS
+ Exit status is normally 0; if an error occurs, exit status
+ is 1. If a warning occurs, exit status is 2.
+
+ Usage: gzip [-cdfhlLnNrtvV19] [-S suffix] [file ...]
+ Invalid options were specified on the command line.
+ file: not in gzip format
+ The file specified to gunzip has not been
+ compressed.
+ file: Corrupt input. Use zcat to recover some data.
+ The compressed file has been damaged. The data up to
+ the point of failure can be recovered using
+ define /user sys$output file.recover
+ zcat file
+ file: compressed with xx bits, can only handle yy bits
+ File was compressed (using LZW) by a program that
+ could deal with more bits than the decompress code
+ on this machine. Recompress the file with gzip,
+ which compresses better and uses less memory.
+ file: already has -gz suffix -- no change
+ The file is assumed to be already compressed.
+ Rename the file and try again.
+ file already exists; do you wish to overwrite (y or n)?
+ Respond "y" if you want the output file to be
+ replaced; "n" if not.
+ gunzip: corrupt input
+ A SIGSEGV violation was detected which usually means
+ that the input file has been corrupted.
+ xx.x%
+ Percentage of the input saved by compression.
+ (Relevant only for -v and -l.)
+ -- not a regular file or directory: ignored
+ When the input file is not a regular file or direc-
+ tory, it is left unaltered.
+
+2 CAVEATS
+ On VMS:
+ - upper case options need quotes: gzip "-V".
+ - restoration of timestamps and version numbers is not supported
+ - If a compressed file already exists, gzip -f overwrites it, it
+ does not create a new version.
+ - multi-part gzip files are not supported.
+ - gunzip does not preserve the input file format. You can use a
+ separate utility to restore the original format.
+ - gunzip and zcat can be used only if you have created the
+ links to gzip as documented in makegzip.com. Otherwise
+ you must use explicit parameters ("gzip -c" or "gzip -dc").
+ - gzip --list cannot give the uncompressed size and crc.
+
+ When writing compressed data to a tape, it is generally
+ necessary to pad the output with zeroes up to a block boun-
+ dary. When the data is read and the whole block is passed to
+ gunzip for decompression, gunzip detects that there is extra
+ trailing garbage after the compressed data and emits a warn-
+ ing by default. You have to use the --quiet option to
+ suppress the warning. This option can be set in the GZIP_OPT
+ environment variable as in:
+ define GZIP_OPT "-q"
+
+2 BUGS
+ On VMS, files in VFC record format are not correctly handled by
+ the C runtime library (the linefeed character is suppressed).
+
+ In some rare cases, the --best option gives worse compres-
+ sion than the default compression level (-6). On some highly
+ redundant files, compress compresses better than gzip.
--- /dev/null
+$! Makefile for VMS
+$! DCL-Shell-language. Edit the symbols section at the end.
+$!
+$ On Control_Y Then Goto The_Exit
+$ On Error Then Goto The_Exit
+$ define/user sys sys$library
+$ cc gzip.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc zip.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc deflate.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc trees.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc bits.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc unzip.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc inflate.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc util.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc crypt.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc lzw.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc unlzw.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc unpack.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc unlzh.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc getopt.c /define=(VAXC)
+$ define/user sys sys$library
+$ cc vms.c /define=(VAXC)
+$ linkobjs:=gzip.obj zip.obj deflate.obj trees.obj bits.obj unzip.obj -
+ inflate.obj util.obj crypt.obj lzw.obj unlzw.obj unpack.obj unlzh.obj -
+ getopt.obj vms.obj
+$ Schleife:
+$ p = f$locate(" ",linkobjs)
+$ if p .lt. f$length(linkobjs)
+$ then linkobjs[p,1]:=","
+$ goto Schleife
+$ endif
+$ write sys$output "linking ''linkobjs'"
+$ link /exec=gzip.exe 'linkobjs',sys$input/opt
+SYS$LIBRARY:VAXCRTL/SHARE
+$
+$ ! Create a hard link. (To remove both files, delete the copy FIRST, then
+$ ! the original. Otherwise, if original deleted first [copy says "no such
+$ ! file"], must use "set file/remove gunzip.exe;#" to get rid of the copy.
+$ ! Unlike in Unix, deleting the original ALWAYS destroys the data--but not
+$ ! the directory entry of the copy.) Using a hard link saves disk space, by
+$ ! the way. Note, however, that copying a hard link copies the data, not
+$ ! just the link. Therefore, set up the link in the directory in which the
+$ ! executable is to reside, or else rename (move) the executables into the
+$ ! directory.
+$ !
+$ set file/enter=gunzip.exe gzip.exe
+$ set file/enter=zcat.exe gzip.exe
+$
+$ ! Set up symbols for the gzip executable. Edit the example below,
+$ ! changing "disk:[directory]" as appropriate.
+$ !
+$ gzip == "$disk:[directory]gzip.exe"
+$ gunzip == "$disk:[directory]gunzip.exe"
+$ zcat == "$disk:[directory]zcat.exe"
+$
+$The_Exit:
+$ Save_Status = $STATUS
+$ exit Save_Status
--- /dev/null
+/* vms.c -- target dependent functions for VMS
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ *
+ * This file was written by Karl-Jose Filler <pla_jfi@pki-nbg.philips.de>
+ * and updated by Jean-loup Gailly.
+ */
+
+#include <stdio.h>
+
+static char **vms_argv = NULL;
+
+static int max_files = 10000;
+
+struct Str_desc {
+ int length;
+ char *addr;
+};
+
+vms_expand_args(old_argc, argv)
+ int *old_argc;
+ char **argv[];
+{
+ int i;
+ int new_argc = 0;
+ int context, status;
+ char buf[255], *p;
+
+ vms_argv = (char**)xmalloc((max_files+1)*sizeof(char*));
+
+ vms_argv[new_argc++] = **argv;
+
+ for (i=1; i < *old_argc; i++) {
+ if (*argv[0][i] == '-') { /* switches */
+ if (new_argc < max_files) {
+ vms_argv[new_argc++] = argv[0][i];
+ }
+ } else { /* Files */
+ context = 0;
+ if (find_file_c(argv[0][i], buf, sizeof(buf), &context) & 1 != 1) {
+ /*
+ * Wrong file ?
+ * forward it to gzip
+ */
+ if (new_argc < max_files) {
+ vms_argv[new_argc++] = argv[0][i];
+ }
+ } else {
+ p = (char*)xmalloc(strlen(buf)+1);
+ strcpy(p, buf);
+ if (new_argc < max_files) {
+ vms_argv[new_argc++] = p;
+ }
+ while (find_file_c(argv[0][i], buf,
+ sizeof(buf), &context) & 1 == 1) {
+ p = (char*)xmalloc(strlen(buf)+1);
+ strcpy(p, buf);
+ if (new_argc < max_files) {
+ vms_argv[new_argc++] = p;
+ }
+ }
+ }
+ }
+ }
+ if (new_argc <= max_files) {
+ *old_argc = new_argc;
+ vms_argv[new_argc] = NULL;
+ *argv = vms_argv;
+ } else {
+ free(vms_argv); /* the expanded file names should also be freed ... */
+ vms_argv = NULL;
+ max_files = new_argc + 1;
+ vms_expand_args(old_argc, argv);
+ }
+}
+
+int find_file_c(in,out,out_len,context)
+ char *in;
+ char *out;
+ int out_len;
+ int *context;
+{
+ struct Str_desc in_desc,out_desc;
+ int status;
+ char *p;
+
+ in_desc.addr = in;
+ in_desc.length = strlen(in);
+
+ out_desc.addr = out;
+ out_desc.length = out_len;
+
+ status = lib$find_file(&in_desc,&out_desc,context);
+
+ p = out_desc.addr;
+ while(*p != ' ') {
+ p++;
+ }
+ *p = 0;
+
+ return status;
+}
--- /dev/null
+/* yesno.c -- read a yes/no response from stdin
+ Copyright (C) 1990, 1998 Free Software Foundation, Inc.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <ctype.h>
+#if HAVE_STDLIB_H
+# include <stdlib.h>
+#endif
+#include <stdio.h>
+
+/* Read one line from standard input
+ and return nonzero if that line begins with y or Y,
+ otherwise return 0. */
+
+int rpmatch ();
+
+int
+yesno ()
+{
+ /* We make some assumptions here:
+ a) leading white space in the response are not vital
+ b) the first 128 characters of the answer are enough (the rest can
+ be ignored)
+ I cannot think for a situation where this is not ok. --drepper@gnu */
+ char buf[128];
+ int len = 0;
+ int c;
+
+ while ((c = getchar ()) != EOF && c != '\n')
+ if ((len > 0 && len < 127) || (len == 0 && !isspace (c)))
+ buf[len++] = c;
+ buf[len] = '\0';
+
+ return rpmatch (buf) == 1;
+}
--- /dev/null
+.so man1/gzip.1
--- /dev/null
+.so man1/zdiff.1
--- /dev/null
+.TH ZDIFF 1
+.SH NAME
+zcmp, zdiff \- compare compressed files
+.SH SYNOPSIS
+.B zcmp
+[ cmp_options ] file1
+[ file2 ]
+.br
+.B zdiff
+[ diff_options ] file1
+[ file2 ]
+.SH DESCRIPTION
+.I Zcmp
+and
+.I zdiff
+are used to invoke the
+.I cmp
+or the
+.I diff
+program on compressed files. All options specified are passed directly to
+.I cmp
+or
+.IR diff "."
+If only 1 file is specified, then the files compared are
+.I file1
+and an uncompressed
+.IR file1 ".gz."
+If two files are specified, then they are uncompressed if necessary and fed to
+.I cmp
+or
+.IR diff "."
+The exit status from
+.I cmp
+or
+.I diff
+is preserved.
+.SH "SEE ALSO"
+cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1), gzip(1), gzexe(1)
+.SH BUGS
+Messages from the
+.I cmp
+or
+.I diff
+programs refer to temporary filenames instead of those specified.
--- /dev/null
+:
+#!/bin/sh
+# sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh
+
+# Zcmp and zdiff are used to invoke the cmp or the diff pro-
+# gram on compressed files. All options specified are passed
+# directly to cmp or diff. If only 1 file is specified, then
+# the files compared are file1 and an uncompressed file1.gz.
+# If two files are specified, then they are uncompressed (if
+# necessary) and fed to cmp or diff. The exit status from cmp
+# or diff is preserved.
+
+PATH="BINDIR:$PATH"; export PATH
+prog=`echo $0 | sed 's|.*/||'`
+case "$prog" in
+ *cmp) comp=${CMP-cmp} ;;
+ *) comp=${DIFF-diff} ;;
+esac
+
+OPTIONS=
+FILES=
+for ARG
+do
+ case "$ARG" in
+ -*) OPTIONS="$OPTIONS $ARG";;
+ *) if test -f "$ARG"; then
+ FILES="$FILES $ARG"
+ else
+ echo "${prog}: $ARG not found or not a regular file"
+ exit 2
+ fi ;;
+ esac
+done
+if test -z "$FILES"; then
+ echo "Usage: $prog [${comp}_options] file [file]"
+ exit 2
+fi
+set $FILES
+if test $# -eq 1; then
+ FILE=`echo "$1" | sed 's/[-.][zZtga]*$//'`
+ gzip -cd "$1" | $comp $OPTIONS - "$FILE"
+
+elif test $# -eq 2; then
+ case "$1" in
+ *[-.]gz* | *[-.][zZ] | *.t[ga]z)
+ case "$2" in
+ *[-.]gz* | *[-.][zZ] | *.t[ga]z)
+ F=`echo "$2" | sed 's|.*/||;s|[-.][zZtga]*||'`
+ set -C
+ trap 'rm -f /tmp/"$F".$$; exit 2' 1 2 13 15 0
+ gzip -cdfq "$2" > /tmp/"$F".$$ || exit
+ gzip -cdfq "$1" | $comp $OPTIONS - /tmp/"$F".$$
+ STAT="$?"
+ /bin/rm -f /tmp/"$F".$$ || STAT=2
+ trap 1 2 13 15 0
+ exit $STAT;;
+
+ *) gzip -cdfq "$1" | $comp $OPTIONS - "$2";;
+ esac;;
+ *) case "$2" in
+ *[-.]gz* | *[-.][zZ] | *.t[ga]z)
+ gzip -cdfq "$2" | $comp $OPTIONS "$1" -;;
+ *) $comp $OPTIONS "$1" "$2";;
+ esac;;
+ esac
+else
+ echo "Usage: $prog [${comp}_options] file [file]"
+ exit 2
+fi
--- /dev/null
+.TH ZFORCE 1
+.SH NAME
+zforce \- force a '.gz' extension on all gzip files
+.SH SYNOPSIS
+.B zforce
+[ name ... ]
+.SH DESCRIPTION
+.I zforce
+forces a .gz extension on all
+.I gzip
+files so that
+.I gzip
+will not compress them twice.
+This can be useful for files with names truncated after a file transfer.
+On systems with a 14 char limitation on file names, the original name
+is truncated to make room for the .gz suffix. For example,
+12345678901234 is renamed to 12345678901.gz. A file name such as foo.tgz
+is left intact.
+.SH "SEE ALSO"
+gzip(1), znew(1), zmore(1), zgrep(1), zdiff(1), gzexe(1)
--- /dev/null
+:
+#!/bin/sh
+# zforce: force a gz extension on all gzip files so that gzip will not
+# compress them twice.
+#
+# This can be useful for files with names truncated after a file transfer.
+# 12345678901234 is renamed to 12345678901.gz
+
+PATH="BINDIR:$PATH"; export PATH
+x=`basename $0`
+if test $# = 0; then
+ echo "force a '.gz' extension on all gzip files"
+ echo usage: $x files...
+ exit 1
+fi
+
+res=0
+for i do
+ if test ! -f "$i" ; then
+ echo ${x}: $i not a file
+ res=1
+ continue
+ fi
+ test `expr "$i" : '.*[.-]z$'` -eq 0 || continue
+ test `expr "$i" : '.*[.-]gz$'` -eq 0 || continue
+ test `expr "$i" : '.*[.]t[ag]z$'` -eq 0 || continue
+
+ if gzip -l < "$i" 2>/dev/null | grep '^defl' > /dev/null; then
+
+ if test `expr "$i" : '^............'` -eq 12; then
+ new=`expr "$i" : '\(.*\)...$`.gz
+ else
+ new="$i.gz"
+ fi
+ if mv "$i" "$new" 2>/dev/null; then
+ echo $i -- replaced with $new
+ continue
+ fi
+ res=1; echo ${x}: cannot rename $i to $new
+ fi
+done
+exit $res
--- /dev/null
+.TH ZGREP 1
+.SH NAME
+zgrep \- search possibly compressed files for a regular expression
+.SH SYNOPSIS
+.B zgrep
+[ grep_options ]
+.BI [\ -e\ ] " pattern"
+.IR filename ".\|.\|."
+.SH DESCRIPTION
+.IR Zgrep
+is used to invoke the
+.I grep
+on compress'ed or gzip'ed files. All options specified are passed directly to
+.I grep.
+If no file is specified, then the standard input is decompressed
+if necessary and fed to grep.
+Otherwise the given files are uncompressed if necessary and fed to
+.I grep.
+.PP
+If
+.I zgrep
+is invoked as
+.I zegrep
+or
+.I zfgrep
+then
+.I egrep
+or
+.I fgrep
+is used instead of
+.I grep.
+If the GREP environment variable is set,
+.I zgrep
+uses it as the
+.I grep
+program to be invoked. For example:
+
+ for sh: GREP=fgrep zgrep string files
+ for csh: (setenv GREP fgrep; zgrep string files)
+.SH AUTHOR
+Charles Levert (charles@comm.polymtl.ca)
+.SH "SEE ALSO"
+grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1),
+gzip(1), gzexe(1)
--- /dev/null
+:
+#!/bin/sh
+
+# zgrep -- a wrapper around a grep program that decompresses files as needed
+# Adapted from a version sent by Charles Levert <charles@comm.polymtl.ca>
+
+# Copyright (C) 1998, 2001 Free Software Foundation
+# Copyright (C) 1993 Jean-loup Gailly
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+PATH="BINDIR:$PATH"; export PATH
+
+prog=`echo $0 | sed 's|.*/||'`
+case "$prog" in
+ *egrep) grep=${EGREP-egrep} ;;
+ *fgrep) grep=${FGREP-fgrep} ;;
+ *) grep=${GREP-grep} ;;
+esac
+
+pat=""
+after_dash_dash=""
+files_with_matches=0
+files_without_matches=0
+no_filename=0
+with_filename=0
+
+while test $# -ne 0; do
+ case "$after_dash_dash$1" in
+ --d* | --rec*) echo >&2 "$0: $1: option not supported"; exit 1;;
+ --files-with-*) files_with_matches=1;;
+ --files-witho*) files_without_matches=1;;
+ --no-f*) no_filename=1;;
+ --wi*) with_filename=1;;
+ --*) ;;
+ -*)
+ case "$1" in
+ -*[dr]*) echo >&2 "$0: $1: option not supported"; exit 1;;
+ esac
+ case "$1" in
+ -*H*) with_filename=1;;
+ esac
+ case "$1" in
+ -*h*) no_filename=1;;
+ esac
+ case "$1" in
+ -*L*) files_without_matches=1;;
+ esac
+ case "$1" in
+ -*l*) files_with_matches=1;;
+ esac;;
+ esac
+ case "$after_dash_dash$1" in
+ -[ef]) opt="$opt $1"; shift; pat="$1"
+ if test "$grep" = grep; then # grep is buggy with -e on SVR4
+ grep=egrep
+ fi;;
+ -[ABCdm])opt="$opt $1 $2"; shift;;
+ --) opt="$opt $1"; after_dash_dash=1;;
+ -*) opt="$opt $1";;
+ *) if test -z "$pat"; then
+ pat="$1"
+ else
+ break;
+ fi;;
+ esac
+ shift
+done
+
+if test -z "$pat"; then
+ echo "grep through gzip files"
+ echo "usage: $prog [grep_options] pattern [files]"
+ exit 1
+fi
+
+if test $# -eq 0; then
+ gzip -cdfq | $grep $opt "$pat"
+ exit $?
+fi
+
+res=0
+for i do
+ gzip -cdfq "$i" |
+ if test $files_with_matches -eq 1; then
+ $grep $opt "$pat" > /dev/null && echo $i
+ elif test $files_without_matches -eq 1; then
+ $grep $opt "$pat" > /dev/null || echo $i
+ elif test $with_filename -eq 0 && { test $# -eq 1 || test $no_filename -eq 1; }; then
+ $grep $opt "$pat"
+ else
+ if test $with_filename -eq 1; then
+ sed_script="s|^[^:]*:|${i}:|"
+ else
+ sed_script="s|^|${i}:|"
+ fi
+ $grep $opt "$pat" | sed "$sed_script"
+ fi
+ r=$?
+ test $res -lt $r && res=$r
+done
+exit $res
--- /dev/null
+/* zip.c -- compress files to the gzip or pkzip format
+ * Copyright (C) 1992-1993 Jean-loup Gailly
+ * This is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License, see the file COPYING.
+ */
+
+#ifdef RCSID
+static char rcsid[] = "$Id: zip.c,v 0.17 1993/06/10 13:29:25 jloup Exp $";
+#endif
+
+#include <config.h>
+#include <ctype.h>
+
+#include "tailor.h"
+#include "gzip.h"
+#include "crypt.h"
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#ifdef HAVE_FCNTL_H
+# include <fcntl.h>
+#endif
+
+local ulg crc; /* crc on uncompressed file data */
+off_t header_bytes; /* number of bytes in gzip header */
+
+/* ===========================================================================
+ * Deflate in to out.
+ * IN assertions: the input and output buffers are cleared.
+ * The variables time_stamp and save_orig_name are initialized.
+ */
+int zip(in, out)
+ int in, out; /* input and output file descriptors */
+{
+ uch flags = 0; /* general purpose bit flags */
+ ush attr = 0; /* ascii/binary flag */
+ ush deflate_flags = 0; /* pkzip -es, -en or -ex equivalent */
+
+ ifd = in;
+ ofd = out;
+ outcnt = 0;
+
+ /* Write the header to the gzip file. See algorithm.doc for the format */
+
+ method = DEFLATED;
+ put_byte(GZIP_MAGIC[0]); /* magic header */
+ put_byte(GZIP_MAGIC[1]);
+ put_byte(DEFLATED); /* compression method */
+
+ if (save_orig_name) {
+ flags |= ORIG_NAME;
+ }
+ put_byte(flags); /* general flags */
+ put_long(time_stamp == (time_stamp & 0xffffffff)
+ ? (ulg)time_stamp : (ulg)0);
+
+ /* Write deflated file to zip file */
+ crc = updcrc(0, 0);
+
+ bi_init(out);
+ ct_init(&attr, &method);
+ lm_init(level, &deflate_flags);
+
+ put_byte((uch)deflate_flags); /* extra flags */
+ put_byte(OS_CODE); /* OS identifier */
+
+ if (save_orig_name) {
+ char *p = base_name(ifname); /* Don't save the directory part. */
+ do {
+ put_char(*p);
+ } while (*p++);
+ }
+ header_bytes = (off_t)outcnt;
+
+ (void)deflate();
+
+#if !defined(NO_SIZE_CHECK) && !defined(RECORD_IO)
+ /* Check input size (but not in VMS -- variable record lengths mess it up)
+ * and not on MSDOS -- diet in TSR mode reports an incorrect file size)
+ */
+ if (ifile_size != -1L && bytes_in != ifile_size) {
+ fprintf(stderr, "%s: %s: file size changed while zipping\n",
+ progname, ifname);
+ }
+#endif
+
+ /* Write the crc and uncompressed size */
+ put_long(crc);
+ put_long((ulg)bytes_in);
+ header_bytes += 2*sizeof(long);
+
+ flush_outbuf();
+ return OK;
+}
+
+
+/* ===========================================================================
+ * Read a new buffer from the current input file, perform end-of-line
+ * translation, and update the crc and input file size.
+ * IN assertion: size >= 2 (for end-of-line translation)
+ */
+int file_read(buf, size)
+ char *buf;
+ unsigned size;
+{
+ unsigned len;
+
+ Assert(insize == 0, "inbuf not empty");
+
+ len = read(ifd, buf, size);
+ if (len == 0) return (int)len;
+ if (len == (unsigned)-1) {
+ read_error();
+ return EOF;
+ }
+
+ crc = updcrc((uch*)buf, len);
+ bytes_in += (off_t)len;
+ return (int)len;
+}
--- /dev/null
+.TH ZLESS 1
+.SH NAME
+zless \- file perusal filter for crt viewing of compressed text
+.SH SYNOPSIS
+.B zless
+[ name ... ]
+.SH DESCRIPTION
+.I Zless
+is a filter which allows examination of compressed or plain text files
+one screenful at a time on a soft-copy terminal. It is the equivalent of
+setting the environment variable PAGER to
+.I less,
+and then running zmore. However, enough people seem to think that having the
+command
+.I zless
+available is important to be worth providing it.
+.SH "SEE ALSO"
+zmore(1), less(1)
--- /dev/null
+:
+#!/bin/sh
+
+: ${PAGER=less}
+export PAGER
+
+PATH="BINDIR:$PATH"
+export PATH
+
+exec zmore ${1+"$@"}
--- /dev/null
+.TH ZMORE 1
+.SH NAME
+zmore \- file perusal filter for crt viewing of compressed text
+.SH SYNOPSIS
+.B zmore
+[ name ... ]
+.SH DESCRIPTION
+.I Zmore
+is a filter which allows examination of compressed or plain text files
+one screenful at a time on a soft-copy terminal.
+.I zmore
+works on files compressed with
+.I compress, pack
+or
+.I gzip,
+and also on uncompressed files.
+If a file does not exist,
+.I zmore
+looks for a file of the same name with the addition of a .gz, .z or .Z suffix.
+.PP
+.I Zmore
+normally pauses after each screenful, printing --More--
+at the bottom of the screen.
+If the user then types a carriage return, one more line is displayed.
+If the user hits a space,
+another screenful is displayed. Other possibilities are enumerated later.
+.PP
+.I Zmore
+looks in the file
+.I /etc/termcap
+to determine terminal characteristics,
+and to determine the default window size.
+On a terminal capable of displaying 24 lines,
+the default window size is 22 lines.
+To use a pager other than the default
+.I more,
+set environment variable PAGER to the name of the desired program, such as
+.I less.
+.PP
+Other sequences which may be typed when
+.I zmore
+pauses, and their effects, are as follows (\fIi\fP is an optional integer
+argument, defaulting to 1) :
+.PP
+.IP \fIi\^\fP<space>
+display
+.I i
+more lines, (or another screenful if no argument is given)
+.PP
+.IP ^D
+display 11 more lines (a ``scroll'').
+If
+.I i
+is given, then the scroll size is set to \fIi\fP.
+.PP
+.IP d
+same as ^D (control-D)
+.PP
+.IP \fIi\^\fPz
+same as typing a space except that \fIi\fP, if present, becomes the new
+window size. Note that the window size reverts back to the default at the
+end of the current file.
+.PP
+.IP \fIi\^\fPs
+skip \fIi\fP lines and print a screenful of lines
+.PP
+.IP \fIi\^\fPf
+skip \fIi\fP screenfuls and print a screenful of lines
+.PP
+.IP "q or Q"
+quit reading the current file; go on to the next (if any)
+.PP
+.IP "e or q"
+When the prompt --More--(Next file:
+.IR file )
+is printed, this command causes zmore to exit.
+.PP
+.IP s
+When the prompt --More--(Next file:
+.IR file )
+is printed, this command causes zmore to skip the next file and continue.
+.PP
+.IP =
+Display the current line number.
+.PP
+.IP \fIi\fP/expr
+search for the \fIi\^\fP-th occurrence of the regular expression \fIexpr.\fP
+If the pattern is not found,
+.I zmore
+goes on to the next file (if any).
+Otherwise, a screenful is displayed, starting two lines before the place
+where the expression was found.
+The user's erase and kill characters may be used to edit the regular
+expression.
+Erasing back past the first column cancels the search command.
+.PP
+.IP \fIi\^\fPn
+search for the \fIi\^\fP-th occurrence of the last regular expression entered.
+.PP
+.IP !command
+invoke a shell with \fIcommand\fP.
+The character `!' in "command" is replaced with the
+previous shell command. The sequence "\\!" is replaced by "!".
+.PP
+.IP ":q or :Q"
+quit reading the current file; go on to the next (if any)
+(same as q or Q).
+.PP
+.IP .
+(dot) repeat the previous command.
+.PP
+The commands take effect immediately, i.e., it is not necessary to
+type a carriage return.
+Up to the time when the command character itself is given,
+the user may hit the line kill character to cancel the numerical
+argument being formed.
+In addition, the user may hit the erase character to redisplay the
+--More-- message.
+.PP
+At any time when output is being sent to the terminal, the user can
+hit the quit key (normally control\-\\).
+.I Zmore
+will stop sending output, and will display the usual --More--
+prompt.
+The user may then enter one of the above commands in the normal manner.
+Unfortunately, some output is lost when this is done, due to the
+fact that any characters waiting in the terminal's output queue
+are flushed when the quit signal occurs.
+.PP
+The terminal is set to
+.I noecho
+mode by this program so that the output can be continuous.
+What you type will thus not show on your terminal, except for the / and !
+commands.
+.PP
+If the standard output is not a teletype, then
+.I zmore
+acts just like
+.I zcat,
+except that a header is printed before each file.
+.SH FILES
+.TP
+/etc/termcap
+Terminal data base
+.SH "SEE ALSO"
+more(1), gzip(1), zdiff(1), zgrep(1), znew(1), zforce(1), gzexe(1)
--- /dev/null
+:
+#!/bin/sh
+
+# Copyright (C) 2001 Free Software Foundation
+# Copyright (C) 1992, 1993 Jean-loup Gailly
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+# 02111-1307, USA.
+
+PATH="BINDIR:$PATH"; export PATH
+if test "`echo -n a`" = "-n a"; then
+ # looks like a SysV system:
+ n1=''; n2='\c'
+else
+ n1='-n'; n2=''
+fi
+oldtty=`stty -g 2>/dev/null`
+if stty -cbreak 2>/dev/null; then
+ cb='cbreak'; ncb='-cbreak'
+else
+ # 'stty min 1' resets eof to ^a on both SunOS and SysV!
+ cb='min 1 -icanon'; ncb='icanon eof ^d'
+fi
+if test $? -eq 0 -a -n "$oldtty"; then
+ trap 'stty $oldtty 2>/dev/null; exit' 0 2 3 5 10 13 15
+else
+ trap 'stty $ncb echo 2>/dev/null; exit' 0 2 3 5 10 13 15
+fi
+
+if test $# = 0; then
+ if test -t 0; then
+ echo usage: zmore files...
+ else
+ gzip -cdfq | eval ${PAGER-more}
+ fi
+else
+ FIRST=1
+ for FILE
+ do
+ < "$FILE" || continue
+ if test $FIRST -eq 0; then
+ echo $n1 "--More--(Next file: $FILE)$n2"
+ stty $cb -echo 2>/dev/null
+ ANS=`dd bs=1 count=1 2>/dev/null`
+ stty $ncb echo 2>/dev/null
+ echo " "
+ if test "$ANS" = 'e' -o "$ANS" = 'q'; then
+ exit
+ fi
+ fi
+ if test "$ANS" != 's'; then
+ echo "------> $FILE <------"
+ gzip -cdfq "$FILE" | eval ${PAGER-more}
+ fi
+ if test -t; then
+ FIRST=0
+ fi
+ done
+fi
--- /dev/null
+.TH ZNEW 1
+.SH NAME
+znew \- recompress .Z files to .gz files
+.SH SYNOPSIS
+.B znew
+[ -ftv9PK] [ name.Z ... ]
+.SH DESCRIPTION
+.I Znew
+recompresses files from .Z (compress) format to .gz (gzip) format.
+If you want to recompress a file already in gzip format, rename the file
+to force a .Z extension then apply znew.
+.SH OPTIONS
+.TP
+.B \-f
+Force recompression from .Z to .gz format even if a .gz file already exists.
+.TP
+.B \-t
+Tests the new files before deleting originals.
+.TP
+.B \-v
+Verbose. Display the name and percentage reduction for each file compressed.
+.TP
+.B \-9
+Use the slowest compression method (optimal compression).
+.TP
+.B \-P
+Use pipes for the conversion to reduce disk space usage.
+.TP
+.B \-K
+Keep a .Z file when it is smaller than the .gz file
+.SH "SEE ALSO"
+gzip(1), zmore(1), zdiff(1), zgrep(1), zforce(1), gzexe(1), compress(1)
+.SH BUGS
+.I Znew
+does not maintain the time stamp with the -P option if
+.I cpmod(1)
+is not available and
+.I touch(1)
+does not support the -r option.
--- /dev/null
+:
+#!/bin/sh
+
+PATH="BINDIR:$PATH"; export PATH
+check=0
+pipe=0
+opt=
+files=
+keep=0
+res=0
+old=0
+new=0
+block=1024
+# block is the disk block size (best guess, need not be exact)
+
+warn="(does not preserve modes and timestamp)"
+tmp=/tmp/zfoo.$$
+set -C
+echo hi > $tmp.1
+echo hi > $tmp.2
+if test -z "`(${CPMOD-cpmod} $tmp.1 $tmp.2) 2>&1`"; then
+ cpmod=${CPMOD-cpmod}
+ warn=""
+fi
+
+if test -z "$cpmod" && ${TOUCH-touch} -r $tmp.1 $tmp.2 2>/dev/null; then
+ cpmod="${TOUCH-touch}"
+ cpmodarg="-r"
+ warn="(does not preserve file modes)"
+fi
+
+# check if GZIP env. variable uses -S or --suffix
+gzip -q $tmp.1
+ext=`echo $tmp.1* | sed "s|$tmp.1||"`
+rm -f $tmp.[12]*
+if test -z "$ext"; then
+ echo znew: error determining gzip extension
+ exit 1
+fi
+if test "$ext" = ".Z"; then
+ echo znew: cannot use .Z as gzip extension.
+ exit 1
+fi
+
+for arg
+do
+ case "$arg" in
+ -*) opt="$opt $arg"; shift;;
+ *) break;;
+ esac
+done
+
+if test $# -eq 0; then
+ echo "recompress .Z files into $ext (gzip) files"
+ echo usage: `echo $0 | sed 's,^.*/,,'` "[-tv9KP]" file.Z...
+ echo " -t tests the new files before deleting originals"
+ echo " -v be verbose"
+ echo " -9 use the slowest compression method (optimal compression)"
+ echo " -K keep a .Z file when it is smaller than the $ext file"
+ echo " -P use pipes for the conversion $warn"
+ exit 1
+fi
+
+opt=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'`
+case "$opt" in
+ *t*) check=1; opt=`echo "$opt" | sed 's/t//g'`
+esac
+case "$opt" in
+ *K*) keep=1; opt=`echo "$opt" | sed 's/K//g'`
+esac
+case "$opt" in
+ *P*) pipe=1; opt=`echo "$opt" | sed 's/P//g'`
+esac
+if test -n "$opt"; then
+ opt="-$opt"
+fi
+
+for i do
+ n=`echo $i | sed 's/.Z$//'`
+ if test ! -f "$n.Z" ; then
+ echo $n.Z not found
+ res=1; continue
+ fi
+ test $keep -eq 1 && old=`wc -c < "$n.Z"`
+ if test $pipe -eq 1; then
+ if gzip -d < "$n.Z" | gzip $opt > "$n$ext"; then
+ # Copy file attributes from old file to new one, if possible.
+ test -n "$cpmod" && $cpmod $cpmodarg "$n.Z" "$n$ext" 2> /dev/null
+ else
+ echo error while recompressing $n.Z
+ res=1; continue
+ fi
+ else
+ if test $check -eq 1; then
+ if cp -p "$n.Z" "$n.$$" 2> /dev/null || cp "$n.Z" "$n.$$"; then
+ :
+ else
+ echo cannot backup "$n.Z"
+ res=1; continue
+ fi
+ fi
+ if gzip -d "$n.Z"; then
+ :
+ else
+ test $check -eq 1 && mv "$n.$$" "$n.Z"
+ echo error while uncompressing $n.Z
+ res=1; continue
+ fi
+ if gzip $opt "$n"; then
+ :
+ else
+ if test $check -eq 1; then
+ mv "$n.$$" "$n.Z" && rm -f "$n"
+ echo error while recompressing $n
+ else
+ # compress $n (might be dangerous if disk full)
+ echo error while recompressing $n, left uncompressed
+ fi
+ res=1; continue
+ fi
+ fi
+ test $keep -eq 1 && new=`wc -c < "$n$ext"`
+ if test $keep -eq 1 -a `expr \( $old + $block - 1 \) / $block` -lt \
+ `expr \( $new + $block - 1 \) / $block`; then
+ if test $pipe -eq 1; then
+ rm -f "$n$ext"
+ elif test $check -eq 1; then
+ mv "$n.$$" "$n.Z" && rm -f "$n$ext"
+ else
+ gzip -d "$n$ext" && compress "$n" && rm -f "$n$ext"
+ fi
+ echo "$n.Z smaller than $n$ext -- unchanged"
+
+ elif test $check -eq 1; then
+ if gzip -t "$n$ext" ; then
+ rm -f "$n.$$" "$n.Z"
+ else
+ test $pipe -eq 0 && mv "$n.$$" "$n.Z"
+ rm -f "$n$ext"
+ echo error while testing $n$ext, $n.Z unchanged
+ res=1; continue
+ fi
+ elif test $pipe -eq 1; then
+ rm -f "$n.Z"
+ fi
+done
+exit $res
projects / gzip / commitdiff