1 2006-12-15 Paul Eggert <eggert@cs.ucla.edu>
3 * NEWS, configure.ac (AC_INIT):
4 Version 1.3.9 released.
6 * Makefile.am (MOSTLYCLEANFILES): Add _match.i.
7 * configure.ac (for an assembler syntax supported by this package):
10 * bootstrap (gnulib_tool_options_extras): New var.
11 (gnulib_tool_options): Use it.
12 * bootstrap.conf (gnulib_tool_options_extras): Avoid getline and
13 rpmatch. gzip doesn't need them, since it doesn't ENABLE_NLS.
15 2006-12-13 Bruno Haible <bruno@clisp.org>
17 * configure.ac: Use $CPPFLAGS everywhere $CPP is used, and use
18 $CPPFLAGS $CFLAGS everywhere $CC is used.
19 * lib/Makefile.am (match.$(OBJEXT)): Likewise.
20 * configure.ac: Test the exit code of the $CPP and $ASCPPPOST commands
23 2006-12-11 Paul Eggert <eggert@cs.ucla.edu>
25 * configure.ac (ASCPPPOST): Simplify to use just 'sed'.
26 * lib/Makefile.am (match.$(OBJEXT)): Check for CPP failure.
28 2006-12-11 Bruno Haible <bruno@clisp.org>
30 Cross-compilation support.
31 * configure.ac (ASCPP): Remove substituted variable.
32 (ASCPPPOST, ASCPPFLAGS): New substituted variables.
33 * lib/Makefile.am (ASCPP, LN_S): Remove unnecessary macro definitions.
34 (match.$(OBJEXT)): Use CPP, ASCPPFLAGS, ASCPPPOST instead of ASCPP.
35 * configure.ac: Add test for chown function.
36 * gzip.c (treat_file) [!HAVE_CHOWN]: Don't call chown.
37 * gzip.c: Include "timespec.h". This doesn't fix any bugs, but
40 2006-12-11 Paul Eggert <eggert@cs.ucla.edu>
42 The SSIZE_MAX fix didn't work on NSK, so fix it in a more-reliable
43 (albeit more-complicated) way. Problem reported by Matthew Woehlke.
44 * gzip.h (read_buffer): New decl.
45 * unlzw.c (unlzw): Use read_buffer rather than read.
46 * zip.c (file_read): Likewise.
47 * util.c (copy, fill_inbuf): Likewise.
48 (read_buffer, write_buffer): New functions.
49 (write_buf): Use write_buffer rather than write.
51 Undo the previous SSIZE_MAX-related change; it didn't work.
52 * gzip.c: Include <limits.h>.
54 * gzip.h: Don't include <limits.h>.
55 (INBUFSIZ): Don't worry about SSIZE_MAX here.
57 2006-12-08 Paul Eggert <eggert@cs.ucla.edu>
59 * NEWS, configure.ac (AC_INIT):
60 Version 1.3.8 released.
62 * gzexe.in (mktemp_status): New var, used to see whether
63 mktemp is a known command. Use this instead of confounding
64 mktemp's existence with its success.
66 * zdiff.in: Remove first line containing ":". This follows
67 up on the SEDCMD fix of 2006-12-01.
68 * zforce.in: Likewise.
74 Fix problems in porting to NSK reported by Matthew Woehlke in
75 <http://lists.gnu.org/archive/html/bug-gzip/2006-12/msg00025.html> and
76 <http://lists.gnu.org/archive/html/bug-gzip/2006-12/msg00027.html>.
77 * gzip.h: Include <limits.h>, for SSIZE_MAX.
78 (INBUFSIZE): Don't make it any larger than SSIZE_MAX.
79 Problem reported by Matthew Woehlke in
80 <http://lists.gnu.org/archive/html/bug-gzip/2006-11/msg00013.html>.
81 * gzip.c: Don't include <limits.h>, as gzip.h now does this.
83 * gzip.c (main): Set exiting_signal before installing signal handlers.
84 (install_signal_handlers): Don't set exiting_signal here. This
86 * zip.c: Include timespec.h, for time_stamp type.
88 2006-12-08 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> (tiny change)
90 * gzexe.in: Work around FreeBSD shell trap bug.
92 * doc/gzip.texi: Likewise.
94 2006-12-08 Paul Eggert <eggert@cs.ucla.edu>
96 * .cvsignore: Add .deps, gzexe, gzip, zdiff, zforce, zgrep,
98 * doc/.cvsignore: Add Makefile.
99 * lib/.cvsignore: Add .deps, Makefile, alloca.h, config.h, fcntl.h,
100 stamp-h1, stdint.h, sys.
102 * configure.ac (for assembler): Set ASFLAGS_config to
103 -Wa,--noexecstack if this seems advisable on this platform.
104 Problem reported by Mike Frysinger in
105 <http://lists.gnu.org/archive/html/bug-gzip/2006-12/msg00018.html>.
106 * lib/Makefile.am (match.$(OBJEXT)): Use ASFLAGS_config.
108 2006-12-07 Paul Eggert <eggert@cs.ucla.edu>
110 * Makefile.am (install-exec-hook): Fix bug when installing
111 symbolic links as aliases. Problem reported by Mike Frysinger.
113 * deflate.c (deflate_fast, deflate): Avoid core dump. Problem
114 originally reported by Jochen Friedrich and trivial patch supplied
115 by Anthony Towns; see <http://bugs.debian.org/184057>.
117 2006-12-06 Paul Eggert <eggert@cs.ucla.edu>
119 * NEWS, configure.ac (AC_INIT):
120 Version 1.3.7 released.
122 2006-12-06 Bruno Haible <bruno@clisp.org> (tiny change)
123 and Paul Eggert <eggert@cs.ucla.edu>
125 Fix build failure on case-insensitive file systems.
126 * configure.ac: Use match_.s instead of _match.s.
127 * Makefile.am (MOSTLYCLEANFILES): Likewise.
128 * lib/Makefile.am (match.$(OBJEXT)): Likewise.
129 (MOSTLYCLEANFILES): Likewise.
131 2006-12-06 Paul Eggert <eggert@cs.ucla.edu>
133 * NEWS: Document the fixes below.
134 * configure.ac (AC_CHECK_FUNCS_ONCE): Add siginterrupt.
135 * gzip.c (lstat) [!defined(HAVE_LSTAT) && !defined(lstat)]: Remove.
136 (SA_NOCLDSTOP, sigprocmask, sigset_t) [!defined SA_NOCLDSTOP]:
138 (siginterrupt) [!defined SA_NOCLDSTOP && ! HAVE_SIGINTERRUPT]:
140 (HAVE_WORKING_O_NOFOLLOW): Define to 0 if not defined.
141 (caught_signals, exiting_signal, remove_ofname_fd): New vars.
142 (remove_ofname): Remove; all uses changed to remove_ofname_fd.
143 (same_file, name_too_long): Remove.
144 (install_signal_handlers): New function. It prefers sigaction,
145 which is more reliable in the presence of race conditions.
146 Catch SIGXCPU and SIGXFSZ, too.
147 (main): Use it instead of installing them by hand.
148 (treat_file): Check for read error when closing ifd.
149 (treat_file, create_outfile, remove_output_file):
150 Avoid race conditions with signals.
151 (create_outfile, check_ofname): Remove most of the gorp about
152 working around ENAMETOOLONG deficiencies. It's obsolete now, and
153 anyway it had race conditions. Just rely on O_EXCL and
154 ENAMETOOLONG. The worst that can happen is that a file name will
155 be silently truncated on an obsolete machine, but no data will be lost.
156 (open_and_stat): Use HAVE_WORKING_O_NOFOLLOW rather than O_NOFOLLOW
157 to work around some O_NOFOLLOW bugs. Otherwise, fall back on
158 lstat only if lstat is available, as symlinks don't exist otherwise.
159 (open_input_file): Use O_NONBLOCK and O_NOCTTY too, to avoid
160 hanging gzip on special files.
161 (abort_gzip_signal): If sigaction is not available, ignore
162 signals. If we get the exiting signal, exit with ERROR status
163 rather than raising a signal.
164 * tailor.h (NO_ST_INO): Remove; no longer used now that same_file
167 2006-12-05 Paul Eggert <eggert@cs.ucla.edu>
169 Port to Tandem NSK/OSS, which lacks fchdir. Problem reported by
171 <http://lists.gnu.org/archive/html/bug-gzip/2006-11/msg00013.html>.
172 * bootstrap.conf (gnulib_modules): Remove openat, as it pulls in
174 * configure.ac: Check for fdopendir.
175 * gzip.c: Don't include openat.h; no longer needed.
176 (treat_dir) [!HAVE_FDOPENDIR]: Fall back on the old opendir method
177 since fdopendir is not available.
179 2006-12-04 Paul Eggert <eggert@cs.ucla.edu>
181 * NEWS: Describe the following change briefly.
182 * bootstrap.conf (gnulib_modules): Remove stat-macros; no longer
184 * gzip.c: Don't include stat-macros.h; no longer needed.
185 (treat_file): Refuse to compress files that are setuid, or setgid,
186 as this can in theory lead to security holes. Also, refuse to
187 compress files with the sticky bit set, on general principle.
188 (copy_stat): Don't copy the setuid, setgid, or sticky bits,
189 as (given the above change) they'll always be zero here.
190 Invoke chmod before chown, to close a race condition.
192 * .cvsignore: Add *.doc, build-aux.
193 * doc/.cvignore: New file.
194 * lib/.cvsignore: New file.
195 * m4/.cvsignore: New file.
197 2006-12-01 Paul Eggert <eggert@cs.ucla.edu>
199 * doc/gzip.texi (Overview): Mention limits of gzip format's
200 time stamps. Also, gzip doesn't always preserve time stamps.
202 * gzip.c (abort_gzip_signal): Don't call abort () as a "safeguard",
203 since it actually causes a core dump. Problem reported by
206 * NEWS: Describe gzexe changes noted below.
207 * Makefile.am (.in): Don't bother with SEDCMD. This stuff isn't needed
208 any more (the hosts it caters to are long extinct), and was
209 questionable anyway since the code assumes the skip= line was line 2.
210 * configure.ac (AC_SYS_INTERPRETER, SEDCMD): Remove; no longer needed.
212 * gzexe.in: Sweep the code and fix some bugs.
213 My, what sharp teeth you have, gzexe!
214 The straw that broke this camel's back was Matthew Burgess's bug report
215 <http://lists.gnu.org/archive/html/bug-gzip/2006-11/msg00012.html>.
217 (IFS): Set it to the standard value, both here and in the
218 script gzexe generates.
219 Check for missing operand after parsing options, not before.
220 This fixes the case for "cpexe --".
221 Check for tail -n problem separately in gzexe and in the executable
222 it generates, in case it's a different 'tail'.
223 (trap): Remove $tmp only if $tmp is not the empty string.
224 Preserve exit status.
225 Don't use the nonstandard (and rarely available) "cpmod" utility.
226 Don't use "set -C"; it's no longer useful and it breaks things
228 (main loop): Handle file names beginning with "-".
229 Exit with status of failing program, not with 1.
230 Fix some bugs in printing diagnostics, and in quoting.
231 Require the skip= line to have at least one digit.
232 Use test -u and test -g rather than using the (less-reliable) ls.
233 Refuse to compress more programs, e.g., sh.
234 Use mktemp rather than tempfile. Build a copy of
235 the compressed or uncompressed executable in the same
236 directory as the executable, as that's less likely to go wrong
237 if disk space is low. Have the executable exit with status 127,
238 not 1, if the decompression process fails; this is more compatible
239 with meta-programs like nohup. Have the executable
240 uncompress to a temp file with the same basename as the executable;
241 this is more likely to go right. Fix a race condition where the
242 executable temporarily did not exist (in either old or new forms).
243 Check for race conditions better when mv fails. Do not attempt
244 to use cp to do the real work, only to copy permissions to a temp
245 file, since we don't want to trash running executables.
247 2006-11-26 Paul Eggert <eggert@cs.ucla.edu>
249 * inflate.c (inflate_dynamic, inflate): Don't send output to
250 stderr unless DEBUG is defined and 'verbose'. Problem reported by
253 * zgrep.in: If the file name contains newline, &, \, or |, escape
254 the character so that 'sed' doesn't mishandle it as a replacement.
255 Problem reported by Bdale Garbee.
257 2006-11-25 Paul Eggert <eggert@cs.ucla.edu>
259 * gzip.1 (OPTIONS): ouput -> output. Problem reported by Matt
261 * vms/gzip.hlp: Likewise.
263 * Makefile.am (FILES_TO_CHECK): New macro.
264 (check-local): Check only the files in FILES_TO_CHECK, since some
265 files under the working directory might be mutating as the test is
266 run, e.g., with "make check >log". Problem reported by Jim
269 2006-11-20 Paul Eggert <eggert@cs.ucla.edu>
271 * NEWS, configure.ac (AC_INIT):
272 Version 1.3.6 released.
274 * NEWS: Describe 1.3.6's changes.
275 * NEWS, README, README-alpha, TODO: Change from GPL to FDL.
276 * .cvsignore, README-cvs, bootstrap, bootstrap.conf: New files.
277 * doc/Makefile.am, lib/Makefile.am: New files.
278 * THANKS: Change own email address to cs.ucla.edu. Add Sverre Jarp.
279 * TODO: Add new tasks to remove porting cruft and
280 all those buggy scripts.
282 * configure.ac: Renamed from configure.in.
283 (AC_PREREQ): Bump to 2.60.
284 (AC_INIT): Bump version to 1.3.6.
285 (AC_CONFIG_AUX_DIR): New.
286 (AC_CONFIG_HEADERS): Move config.h to lib.
287 Input is now lib/config.hin.
288 (AM_INIT_AUTOMAKE): Add gnits, dist-shar.
289 (AC_PROG_CC_STDC): New, replacing AC_PROG_CC.
290 (AM_PROG_CC_C_O, AC_PROG_RANLIB): New.
291 (AC_AIX, AC_GNU_SOURCE, AC_MINIX): Remove; gnulib does them now.
292 (gl_EARLY, gl_INIT): New.
293 match.c was moved to lib/match.c.
294 (AC_CHECK_HEADERS_ONCE): Replace AC_CHECK_HEADERS. Don't check
295 for sys/utime.h or utime.h.
296 (AC_CHECK_FUNCS_ONCE): Replace AC_CHECK_FUNCS. Check for fchmod
297 and fchown, not utime.
298 (AC_REPLACE_FUNCS): Remove; rpmatch is now done by gnulib.
299 (AC_CONFIG_FILES): Add doc/Makefile, lib/Makefile.
301 * bits.c: Use the more-usual form for copyright notices in source code.
302 * deflate.c: Likewise.
305 * inflate.c: Likewise.
307 * revision.h: Likewise.
308 * tailor.h: Likewise.
310 * unpack.c: Likewise.
313 * crypt.c (dummy): Add decl so that pedantic compilers won't
314 complain about an empty file.
315 * gzip.c (license_msg): Use more-modern wording.
316 Include fcntl-safer.h, openat.h, stat-macros.h, stat-time.h.
317 Simply include <dirent.h> if !NO_DIR, removing a rats-nest of
319 Simply include <utimens.h> if !defined NO_UTIME, removing a
320 another rats-nest of #ifdefs.
321 (DIR_OPT, TIME_OPT): Remove.
322 (_D_EXACT_NAMLEN): Renamed from NAMLEN. All uses changed.
323 (S_ISDIR, S_ISREG, O_BINARY, O_CREAT, O_EXCL, S_IRUSR, S_IWUSR):
324 Remove; gnulib now does this.
325 (RETSIGTYPE): Remove; Autoconf does this.
326 (program_name): Renamed from progname, for compatibility with gnulib.
328 (time_stamp): Now struct timespec, not time_t. All uses changd.
329 (remove_oftime): Now volatile.
330 (reset_times): Remove; now done by futimens.
332 (try_help): New function.
333 (help, license): Don't output date as part of version.
334 A version number suffices.
335 (help): Redo help message to match style of coreutils etc.
336 (version): Don't bother printing compile-time configuration info
338 (main): Don't assume strlen (argv[0]) < INT_MAX (!).
339 On usage errors, suggest --help without outputting all the help.
340 (main, do_list): Remove unnecessary casts.
341 (treat_stdin, treat_file, get_method, copy_stat):
342 Support sub-second time stamp resolution.
343 (treat_file, copy_istat): Close some race conditions if files are
344 renamed as we read or write them.
345 (treat_file): Do not attempt to reset the access times of
346 directories that we read.
347 (open_and_stat, open_input_file): New functions.
348 (do_stat, get_istat): Remove; most of the contents went to these new
350 (make_ofname): Don't use WARN, as it affects exit status.
351 (get_method): When the original file name was truncated,
352 restore from its base name, not from its full name.
353 (do_list): Avoid undefined behavior with out-of-range time stamps.
354 ctime, for example, cannot be invoked on arbitrary time stamps safely,
355 since it might overrun an internal buffer. Do not assume that
357 (copy_stat): Do not remove input file; that's now the caller's
358 responsibility. This avoids a problem if there is a write error
359 when the caller closes the output file.
360 (treat_dir): New arg FD, to avoid a race condition. All uses changed.
361 (remove_output_file): New function.
362 (abort_gzip): Use it.
363 (abort_gzip_signal): New function, which is async-signal-safe.
364 Exit with the signal that we got.
365 * gzip.h (program_name, time_stamp, abort_gzip): Adjust decls to
366 match gzip.c changes.
367 * inflate.c (huft_build): Return 2 if null input.
368 * tailor.h (HAVE_UTIME): Do not define; gnulib does this now.
369 (OPEN): Use open_safer, not plain open.
370 * unlzh.c (NPT): Set to 1<<TBIT, not to the maximum of NT and NP.
371 (make_table): Report an error if 1<<tablebits < nextcode.
372 (read_pt_len): Report an error if 16 < c.
373 * unpack.c (read_tree): Report an error if the tree has too many
374 leaves while reading it. Fix off-by-one error in final check.
375 * util.c: Include <xalloc.h>, for xalloc_die decl.
376 (gzip_base_name): Renamed from base_name, so we don't collide
377 with gnulib. All uses changed.
378 (add_envopt): Use xstrdup instead of xmalloc+strcpy.
379 Use xcalloc rather than calloc + check.
380 (gzip_error): Renamed from error, so we don't collide with gnulib.
382 (xalloc_die): New function.
383 (xmalloc): Remove; no longer needed.
384 * zip.c (zip): Watch for time stamp overflow; the old code
385 mishandled negative time stamps.
387 * gzexe.in: Add support for --help, --version, --.
388 Don't call basename or sed if we can avoid it.
389 * zdiff.in: Likewise.
390 * zforce.in: Likewise.
391 * zgrep.in: Likewise.
392 * zless.in: Likewise.
393 * zmore.in: Likewise.
395 * zdiff.in: Protect against file names beginning with "-".
396 * zmore.in: Likewise.
397 * zgrep.in: Use printf rather than echo, to avoid problems with
398 leading "-" and backslash. Return status of subsidiary grep.
399 * zless.in: Add copyright notice.
401 * zless.1: We now pass "--" to LESSOPEN.
402 (BUGS): Mention that input file arguments are required.
403 Add copyright notice.
405 * COPYING: Update to current version.
407 * Makefile.am (SUBDIRS): New macro.
408 (AUTOMAKE_OPTIONS): Remove; now done in configure.ac.
409 (M4DIR, ACINCLUDE_INPUTS): Remove.
410 (EXTRA_DIST): Remove getopt.h.
411 (gzip_SOURCES): Remove getopt.c, getopt1.c, yesno.c.
412 (gzip_LDADD): Change from @LIBOBJS@ to lib/libgzip.a.
413 (AM_MAKEINFOFLAGS, info_TEXINFOS, gzip_TEXINFOS, ASCPP, LN_S):
414 (match.$(OBJEXT)): Move to subdirectory makefiles.
415 (.in): Substitute @VERSION@, too.
416 (check-local): New rule.
417 (MOSTLYCLEANFILES): Add _match.S.
419 * doc/gzip.texi: Renamed from gzip.texi. Change to GNU FDL
420 without invariant sections or cover texts. Don't put
421 version number or date into sample gzip -h output.
422 * lib/match.c: Renamed from match.c. Add ia64 version
423 written by Sverre Jarp (HP Labs).
425 * INSTALL: Remove from CVS; now created automatically by
426 the bootstrap script.
427 * Makefile.in: Likewise.
428 * aclocal.m4: Likewise.
429 * config.h.in: Likewise.
430 * configure: Likewise.
432 * fdl.texi: Likewise.
433 * getopt.c: Likewise.
434 * getopt.h: Likewise.
435 * getopt1.c: Likewise.
436 * gzip.doc: Likewise.
437 * gzip.info: Likewise.
438 * install-sh: Likewise.
439 * mdate-sh: Likewise.
441 * mkinstalldirs: Likewise.
442 * rpmatch.c: Likewise.
443 * stamp-vti: Likewise.
444 * texinfo.tex: Likewise.
445 * version.texi: Likewise.
448 2002-09-30 Paul Eggert <eggert@twinsun.com>
450 * NEWS, README, revision.h, configure.in (AM_INIT_AUTOMAKE):
451 Revision 1.3.5, dated today.
453 * util.c (fprint_off): Fix bug in printing values greater than
454 10 * 2**32 bytes. Bug reported by Bryan Andersen.
456 * Makefile.am (match.$(OBJEXT)): Use .S as extension for $(ASCPP),
458 * configure.in: Likewise.
459 Upgrade assembly-language checking for Autoconf 2.54, using cache vars.
460 (AC_PROG_CPP, AC_OBJEXT): Add.
462 * match.c: Accept __i386 and __i386__ as synonyms for i386.
463 Bug reported by "fork __" <bouloumag@hotmail.com>.
465 2002-09-29 Paul Eggert <eggert@twinsun.com>
467 * gzip.texi (Overview): Suggest how to use gunzip on zip files.
469 * zless.1, zless.in: Use LESSOPEN, not PAGER.
470 Suggested by <antos@MAST.queensu.ca>.
472 2002-09-28 Paul Eggert <eggert@twinsun.com>
474 * zforce.in: Use shell pattern matching instead of 'expr', which
475 mishandles names like "+". Remove old check for 14-byte file
476 names on hosts with broken "mv" implementations, as such systems
477 aren't in use any more and it's better nowadays to support file
478 names longer than 14 bytes. Rely on "mv"'s error-reporting.
479 This fixes a portability bug reported by Ralf Neubauer, along
480 with some other bugs.
482 Remove dangling output symlinks properly.
483 Bug reported by Kalle Olavi Niemitalo.
484 * gzip.c (lstat): New macro, for platforms lacking lstat.
486 (name_too_long, check_ofname): Use lstat instead of stat.
488 2002-09-27 Paul Eggert <eggert@twinsun.com>
490 * zforce.in: Use "gzip -lv", not "gzip -v". Patch by Ralf
493 * configure.in (ASCPP): Don't use test -a, as POSIX says it's
496 * zmore.in: Likewise. Similarly, don't use test -o, or test -t
499 * gzexe.in (PATH): Set to same as other programs.
500 Don't assume "tail +22" works; POSIX removed this.
501 Check against compressing "tail".
502 Check against "skip=" line with no integer.
503 * zgrep.in: Exit with status 2 if trouble, for consistency with grep.
505 * gzip.c (main): Avoid core dump in diagnostic message if
506 incorrect suffix is given.
508 2002-09-26 Paul Eggert <eggert@twinsun.com>
510 * zdiff.in: Use "trap -" instead of "trap". Patch by Nicolas Boullis.
511 Use names, not numbers, for signals. Patch by Andrew Stribblehill.
513 * NEWS, README, revision.h, configure.in (AM_INIT_AUTOMAKE):
514 Revision 1.3.4, dated today.
516 * README-alpha: Upgrade to Autoconf 2.54 and Automake 1.7.
517 * configure.in (AC_PREREQ): Move to start, and increase to 2.54.
518 (AC_INIT, AM_INIT_AUTOMAKE, AC_CONFIG_SRCDIR, AC_CONFIG_FILES,
519 AC_OUTPUT): Use modern style.
520 (AC_OBJEXT, AC_EXEEXT): Remove; obsolete.
521 (AC_GNU_SOURCE): Add.
522 (AC_HEADER_STDC): Renamed from AC_STDC_HEADERS.
523 (AC_CHECK_HEADERS): Remove stdlib.h, string.h, unistd.h; now done
525 (AC_SUBST): Remove CFLAGS; now done by Autoconf.
527 * gzip.texi: Use the GNU FDL for distribution terms, following the
528 recipe in the Texinfo manual. Use Automake-generated variables
529 for date and version.
530 * fdl.texi, mdate-sh: New files.
531 * Makefile.am (AM_MAKEINFOFLAGS): Add --no-split.
532 (gzip_TEXINFOS): New macro.
534 * tailor.h (NO_DIR): Define to 1, not the empty string.
535 * gzip.c (NO_DIR): Define to 0 if not defined. All uses changed.
536 (usage): Don't put '#if' inside printf, as the C standard says
537 that it is not portable if printf is a macro.
539 Don't lose output when decompressing truncated input.
540 Bug reported by Nadav Har'El.
541 * inflate.c (GETBYTE): New macro.
543 (inflate_dynamic, inflate_block): Add a local variable w, needed
546 2002-03-08 Paul Eggert <eggert@twinsun.com>
548 * NEWS, README, revision.h, gzip.texi,
549 configure.in (AM_INIT_AUTOMAKE): Revision 1.3.3, dated today.
551 * README-alpha: Now using latest stable GNU tools.
552 Using the latest tools allows gzip to build correctly on hosts
553 conforming to POSIX 1003.1-2001.
555 * configure.in (match): Use AC_LIBOBJ; Autoconf 2.53 requires it.
556 (LIBOBJS): No longer need to subst, since AC_LIBOBJ does it.
557 (AC_PREREQ): Bump to 2.53.
559 * Makefile.am (install-exec-hook, remove-installed-links):
560 Work even when configured with --program-transform-name.
562 * gzip.c (license_msg): Update copyright.
563 (z_len): Now of type size_t.
565 2001-11-03 Paul Eggert <eggert@twinsun.com>
567 * NEWS, README, revision.h, gzip.texi, configure.in (AM_INIT_AUTOMAKE):
568 Revision 1.3.2, dated today.
570 * Makefile.am (LN_S): New macro.
571 (install-exec-hook): Depend on remove-installed-links.
572 Affect $(DESTDIR)$(bindir), not just $(bindir).
573 (uninstall-local, remove-installed-links): New rules.
574 * README-alpha: This release built with autoconf 2.52f.
575 * TODO: Add rsync patch.
576 * configure.in: Add AC_PREREQ(2.52) and AC_PROG_LN_S.
577 * gzip.1, zmore.1: Fix troff glitches, using Eric S. Raymond's
578 suggestions for inspiration.
579 * m4/shell.m4(AC_PROG_SHELL): Add commentary and cleanup.
581 * gzip.texi, gzip.1: Add pointers to RFCs 1951 and 1952.
582 Mention that gzip --list reports file sizes modulo 2^32.
583 * gzip.1: Remove incorrect report of 2 GB bug. Add copyright notice.
585 2001-09-30 Paul Eggert <eggert@twinsun.com>
587 * NEWS, README, revision.h, gzip.texi, configure.in (AM_INIT_AUTOMAKE):
588 Revision 1.3.1, dated today.
590 * INSTALL, getopt.c, getopt.h, getopt1.c, install-sh, missing,
591 mkinstalldirs, texinfo.tex:
592 Sync with latest version in other packages.
594 * acinclude.m4, config.guess, config.sub: Remove.
595 * depcomp, rpmatch.c, yesno.c: New files.
597 * ChangeLog, README, NEWS, TODO, configure.in, zgrep.in, zmore.in:
598 Add copyright notice.
600 * Makefile.am (ACLOCAL_AMFLAGS): New macro.
601 (ACINCLUDE_INPUTS): Remove all but shell.m4.
602 ($(srcdir)/acinclude.m4): Remove.
603 (gzip_sources): Add yesno.c.
607 * configure.in (AC_CANONICAL_HOST): Remove.
608 (AC_AIX, AC_MINIX): Move earlier.
609 (AC_REPLACE_FUNCS): Add rpmatch.
612 Report error if -b operand is not a nonnegative integer.
613 (treat_file): Don't assume tab width is 8, or that characters are
615 (make_ofname): Use WARN to warn about unchanged files.
616 (get_method): "get newer version of gzip" -> "not supported"
617 (check_ofname): Use yesno instead of checking for 'y' ourselves.
618 (treat_file): Do not assume link count fits in int.
620 * gzip.h (yesno): New decl.
622 * util.c (display_ratio): Use floating point to compute ratio:
623 this avoids problems with integer overflow.
625 * zgrep.in: Add support for --, -H, -h, -L, -l, -C, -d, -m and
626 their long equivalents. Warn that -r and -d are not supported.
629 Check that file is readable before attempting to decompress it.
631 2000-10-09 Paul Eggert <eggert@twinsun.com>
633 * configure.in (AC_CHECK_FUNCS): Add lstat.
635 2000-07-20 Paul Eggert <eggert@twinsun.com>
637 Use a POSIX-compliant shell instead of /bin/sh.
638 Idea suggested by Albert Chin-A-Young <china@thewrittenword.com>.
640 * m4/shell.m4: New file.
641 * configure.in (AC_PROG_SHELL): Add it.
642 * Makefile.am (ACINCLUDE_INPUTS): Add $(M4DIR)/shell.m4.
643 (.in): Replace /bin/sh with $(SHELL).
645 2000-04-17 Bruno Haible <haible@clisp.cons.org>
647 * Makefile.am (install-exec-hook): If hard links fail, try symlinks.
649 2000-04-02 Jim Meyering <meyering@ascend.com>
651 * Makefile.am (install-exec-hook): Remove link targets before
654 2000-01-02 Albert Chin-A-Young <china@thewrittenword.com>
656 * gzip.texi: Add direntry.
658 1999-12-21 Paul Eggert <eggert@twinsun.com>
660 * NEWS, README, revision.h, gzip.texi: Revision 1.3, dated today.
661 * gzip.c (license_msg, usage, version, help, license):
662 Adjust to current GNU coding standards.
663 (total_in, total_out): Remove unnecessary initialization.
664 * zip.c (file_read): Report read errors.
665 * util.c (fill_inbuf): Likewise.
666 * gzip.c (main): Don't assume EOF == -1.
667 * unlzw.c (unlzw): Likewise.
668 * util.c (copy, fill_inbuf): Likewise.
670 1999-11-18 Paul Eggert <eggert@twinsun.com>
672 * m4/largefile.m4 (AC_SYS_LARGEFILE_FLAGS):
673 Work around a bug in the QNX shell, which doesn't
674 propagate exit status of failed commands inside shell assignments.
676 1999-10-07 Paul Eggert <eggert@twinsun.com>
678 * NEWS, README, revision.h, gzip.texi:
679 Revision 1.2.4294967306 dated today. This is the successor to
680 revision 1.2.4.4294967305; automake requires the new (shorter) number.
684 * Makefile.am, gunzip.1, zcat.1, zcmp.1, AUTHORS: New files.
686 * revision.h (VERSION): Remove; moved to config.h.
688 * configure.in (AM_INIT_AUTOMAKE, AM_CONFIG_HEADER,
689 AC_CANONICAL_HOST, AC_OBJEXT): Add.
690 (AC_PROG_CPP): Remove.
691 (AC_SYS_LARGEFILE): Add, replacing older inline code.
692 (ASCPP): Use $OBJEXT.
693 (LIBOBJS): Add match.o if needed.
694 (AC_PROG_INSTALL): Remove.
695 (AC_EXT, AC_C_CONST): Add.
696 (AC_CHECK_HEADERS): Add, replacing lots of AC_HEADER_CHECKs.
697 All instances of defined(NO_TIME_H) changed to !defined(HAVE_TIME_H),
699 (AC_CHECK_FUNCS): Add utime.
700 (SEDCMD): Use $interpval, not $ac_cv_sys_interpreter.
701 (AC_PREFIX_PROGRAM): Add, replacing AC_PREFIX.
704 (OBJA): Remove; LIBOBJS now does this.
706 * bits.c, gzip.c, deflate.c, inflate.c, lzw.c, trees.c, unlzh.c,
707 unlzw.c, unpack.c, unzip.c, util.c, zip.c: Include <config.h>
708 first; this is needed for proper large-file support, given the new
709 way of configuring large files.
711 * gzip.c: Include <sys/types.h>; Ultrix needs this.
712 (TIME_OPT): Use STRUCT_UTIMBUF instead of empty string.
713 (help): Add bug-report address.
714 (do_stat): Depend on HAVE_LSTAT, not S_IFLNK, S_ISLNK, and NO_SYMLINK.
716 1999-06-25 Paul Eggert <eggert@twinsun.com>
718 * inflate.c (huft_build):
719 Set n to length of v, to detect improper tables.
720 Don't accidentally grow j past z.
722 1999-06-24 Paul Eggert <eggert@twinsun.com>
724 * Makefile.in (check): Update texinfo.tex size.
726 * configure.in (ASMV):
727 Define with AC_DEFINE; do not manipulate DEFS directly,
728 as this doesn't work with recent autoconf versions.
730 1999-02-06 Paul Eggert <eggert@twinsun.com>
732 * NEWS, README, revision.h, gzip.texi: Revision 1.2.4.4294967305,
733 dated today. This merges the changes from gzip 1.2.4a, which fix
734 some typographical errors in the documentation and update the
735 bug-reporting address.
737 1999-01-27 Paul Eggert <eggert@twinsun.com>
739 * NEWS, README, revision.h (VERSION, REVDATE):
740 Revision 1.2.4.4294967304, dated today.
742 Port to autoconf 2.13.
744 * Makefile.in (next, next-fat, coherent):
745 Update dirent headers to match Autoconf 2.13.
746 * configure.in (AC_RETSIGTYP): Remove; superseded by AC_TYPE_SIGNAL.
747 (AC_DYNIX_SEQ, AC_XENIX_DIR, AC_DIR_HEADER): Remove; superseded by
749 * tailor.h (HAVE_DIRENT_H, HAVE_SYS_DIR_H):
750 Define instad of DIRENT, SYSDIR.
751 * gzip.c (NAMLEN): Renamed from NLENGTH. Depend on Autoconf 2.13 names
752 HAVE_DIRENT_H, HAVE_SYS_NDIR_H, HAVE_SYS_DIR_H, HAVE_NDIR_H
753 instead of the oldfashioned names DIRENT, SYSDIR, SYSNDIR, NDIR.
754 (CLOSEDIR): New macro.
755 (progerror): New function.
756 (treat_stdin, treat_file, creat_outfile, get_istat, check_ofname,
757 treat_dir): Use it, for brevity.
758 (treat_dir): Report any I/O errors when reading directories.
760 * COPYING, INSTALL, doc/texinfo.tex, install-sh:
761 Update to latest public versions.
763 1998-11-18 Paul Eggert <eggert@twinsun.com>
765 * NEWS, README, revision.h (VERSION, REVDATE):
766 Revision 1.2.4.4294967303, dated today.
768 * gzip.c (get_method): Don't complain about trailing zeros at
769 the end of a gzipped file, as they're commonly appended to fill
770 out a block (e.g. by GNU tar).
772 * configure.in (CPPFLAGS, LDFLAGS, LIBS): Add large-file support
773 for HP-UX 10.20 and later.
775 * getopt.c, getopt.h, texinfo.tex: Sync with latest version at gnu.org.
776 * getopt1.c: New file.
777 * Makefile.in (SRCS): Add getopt1.c.
778 (OBJS): Add getopt1$O.
779 (getopt1$O): New dependency.
780 (check): Adjust desired size of compressed texinfo.tex to 55637,
781 to reflect the 1998-11-13 edition of texinfo.tex.
783 * gpl.texinfo: Remove; its addresses were out of date and
784 these days the GPL isn't reprinted in manuals anyway.
785 * gzip.texi: Remove reference to gpl.texinfo.
786 * Makefile.in (GENFILES): Remove gpl.texinfo.
788 1998-11-13 Paul Eggert <eggert@twinsun.com>
790 * NEWS, README, revision.h (VERSION, REVDATE):
791 Revision 1.2.4.4294967302, dated today.
793 * gzip.c (input_eof): New function.
794 (treat_stdin, treat_file): Use it to fix premature detection of EOF
795 bug when a gzipped file concatenation boundary is at a multiple of
798 * Makefile.in (installman): Fix bug when installing from subdirectory.
799 ($(srcdir)/gzip.info): Renamed from gzip.info.
800 ($(srcdir)/gzip.info, realclean): Do not split gzip.info.
802 1998-10-26 Paul Eggert <eggert@twinsun.com>
804 * NEWS, README, revision.h (VERSION, REVDATE):
805 Revision 1.2.4.4294967301, dated today.
807 * TODO: Update bug reporting address.
809 * Makefile.in (datadir, libdir): Remove unused macros.
810 (mandir): Let configure set it.
811 (manextdir): New macro.
812 (alldirs): Remove datadir, libdir; add manextdir.
813 (TEXI2HTML): New macro.
814 (installman, uninstall): Install into manextdir, not mandir.
815 (install-strip): New rule.
816 (installdirs): No need to build $(prefix)/man separately,
817 as it's now in alldirs.
818 (match$O): Compile with $(CFLAGS).
819 (gzip_1.html): New rule.
821 * gzip.c (get_istat): Remove lint by initializing z_suffix_errno.
822 (check_ofname): Do not assume unsigned char.
824 * util.c (strlwr): Don't assume char is unsigned.
825 (warning): Renamed from `warn'.
827 * gzip.h (tolow): Use tolower instead of relying on 'A'-'a'.
828 (warning): Renamed from warn.
830 * trees.c (warning): Renamed from warn.
832 1998-10-14 Paul Eggert <eggert@twinsun.com>
834 Merge patches from Debian.
836 * NEWS, README, revision.h (VERSION, REVDATE):
837 Revision 1.2.4.4294967300, dated today.
839 * README, algorithm.doc, gzip.texi: Update maintainer address.
841 * gzexe.in, zdiff.in, znew.in:
842 Close security hole portably, using `set -C'.
844 * zgrep.in: Add -A, -B.
846 * gzexe.in: Use `gzip', not full path, to run gzip.
848 * zdiff.in: Report proper exit status.
850 * gzip.h (base_name): Renamed from basename. All uses changed.
852 * gzip.c (z_suffix): Now char *, so that there's no limit to length.
854 (main): If --quiet, abort gzip when SIGPIPE received.
855 (get_suffix): Don't assume z_suffix's address is a constant.
856 (get_istat): Likewise.
857 Check for buffer overflow.
858 Preserve errno correctly.
859 (make_ofname): Check for buffer overflow.
861 * util.c (fill_inbuf): Flush window before reporting read error.
863 * inflate.c (inflate_dynamic): Don't dump core if tl == NULL.
865 * Makefile.in (GENFILES): Add zless.in.
866 (SCRIPTS): Add zless.
867 (default): Build all programs, not just gzip.
869 (installbin): Install zegrep, zfgrep.
870 (installman): Install zless man page.
871 (install_compress): Don't install compress.
874 1998-09-16 Paul Eggert <eggert@twinsun.com>
876 * NEWS, README, revision.h: Bump version number to 1.2.4.4294967299.
878 * tailor.h (UNLINK_READONLY_BUG): New macro.
879 * gzip.h (unlink): New decl.
880 * util.c (xunlink): New function.
882 (treat_file, create_outfile, check_ofname, copy_stat, abort_gzip):
883 Use xunlink rather than unlink.
884 Do not chmod the file; xunlink will do that if need be.
886 1998-05-21 Paul Eggert <eggert@twinsun.com>
888 * NEWS, README, revision.h: Bump version number to 1.2.4.4294967298.
889 * Makefile.in (prefix): Set from @prefix@.
890 (distclean): Remove config.cache.
892 1998-01-15 Paul Eggert <eggert@twinsun.com>
894 * NEWS, README, revision.h:
895 Bump version number to indicate large-file support.
897 1997-10-08 Paul Eggert <eggert@twinsun.com>
899 * gzip.c (CHAR_BIT): Define if <limits.h> doesn't.
900 (OFF_T_MIN, OFF_T_MAX): New macros.
901 (do_list): Revert to fixed format, but this time don't assume
902 that 9 digits suffice; use a width taken from the maximum value
903 that off_t can represent.
904 (off_t): Do not typedef; autoconf handles this now.
905 * gzip.c, util.c (<limits.h>): Include if HAVE_LIMITS_H.
906 * gzip.h, util.c (fprint_off): Now takes int width argument.
907 * configure.in (AC_HAVE_HEADERS): Check for limits.h.
908 (AC_TYPE_OFF_T): Use this instead of grepping sys/types.h for off_t.
909 (AC_TYPE_SIZE_T): Use this instead of obsolescent AC_SIZE_T.
910 * tailor.h (NO_OFF_T): Remove.
911 (off_t): Define this instead.
913 1997-10-03 Paul Eggert <eggert@twinsun.com>
915 * Makefile.in, bits.c, configure.in, deflate.c, gzip.c, gzip.h,
916 inflate.c, trees.c, unlzw.c, unpack.c, unzip.c, util.c, zip.c:
917 Adjust to Solaris 2.6, which has large files but small off_t by default.
918 * gzip.c: Output more reasonable message if input file is too large.
919 * gzip.c, util.c: Propagate errno from point of error to `perror'.
920 * unzip.c: Allow uncompressing files larger than 4 gigabytes.
921 http://www.gzip.org/4g.patch (1996-07-21)
923 Wed Aug 18 09:34:23 1993 Jean-loup Gailly (jloup@chorus.fr)
926 By default, do not restore file name and timestamp from those saved
927 inside the .gz file (behave as 'compress'). Added the --name option
928 to force name and timestamp restoration.
929 Accept - as synonym for stdin.
930 Use manlinks=so or ln to support either hard links or .so in man pages
931 Accept foo.gz~ in zdiff.
932 Added support for Windows NT
933 Handle ENAMETOOLONG for strict Posix systems
934 Use --recursive instead of --recurse to comply with Webster and
936 Allow installation of shell scripts with a g prefix: make G=g install
937 Install by default zcat as gzcat if gzcat already exists in path.
938 Let zmore behave as more when invoked without parameters (give help)
939 Let gzip --list reject files not in gzip format even with --force.
940 Don't complain about non gzip files for options -rt or -rl.
941 Added advice in INSTALL for several systems.
942 Added makefile entries for NeXTstep 3.1 (if configure fails)
943 Avoid problem with memcpy on Pyramid (gave crc error on some files)
944 Support the -r option when compiled with Borland C++ on msdos.
945 Force lower case file names only for FAT file systems (not HPFS)
946 Rewrite one expression in inflate.c to avoid cc bug on Solaris x86.
947 In the msdos makefiles, get match.asm from the msdos subdirectory.
948 Catch SIGTERM and SIGHUP only if they are not ignored.
949 getopt.c: on Amiga, "#if !defined(const)" does not compile.
950 Use register parameters on Amiga.
951 Do not force names to lower case on Amiga.
952 Fix support of Atari TOS (Makefile.st and tailor.h)
953 In unlzw.c, do not suggest using zcat if zcat already used.
954 In INSTALL, suggest using bsdinst for HPUX.
955 Document Turbo C++ 1.0 bug in INSTALL.
956 Improved the documentation relative to the --no-name option.
957 Avoid signed/unsigned warnings in several files.
958 Added pointer to jka-compr19.el in README.
959 Added pointer to OS/2 executables in README.
960 Added --block-compress in tar -z example (gzip.1 and gzip.texi).
961 Don't keep rcsid in executable (avoid compilation warnings).
962 Check also the correctness of the first byte of an .Z file.
963 Return non zero status for an invalid option.
964 Remove "NEWFILES" from os2/gzip.def for Borland C++ on OS/2.
965 Remove "time stamp restored" message (just obey the -N request).
967 Thu Jun 24 10:27:57 1993 Jean-loup Gailly (jloup@chorus.fr)
970 Don't display the output name when decompressing except with --verbose.
971 Remove usage of alloca in getopt.c and all makefiles.
972 Use ASCPP instead of CPP to avoid breaking AC_HEADER_CHECK on RiscOS.
973 Added the zfile shell script in subdirectory sample.
974 Moved the list of compiler bugs from README to INSTALL.
975 Added vms/Readme.vms.
976 Fix DIST_BUFSIZE check in unlzh.c for 16 bit machines.
977 Fix REGSIGTYP macro in configure.in.
978 Use 'define' instead of == in vms/gzip.hlp.
979 Avoid warnings in unlzh.c
980 Allow separate installation of binaries and man pages.
981 Simplified handling of file names with spaces in zgrep and znew.
982 Fix dependencies and remove rule for trees.c in amiga/Makefile.sasc
983 Add missing quote in gzexe.
985 Thu Jun 17 13:47:05 1993 Jean-loup Gailly (jloup@chorus.fr)
988 Fix a compilation error in gzip.c on Sun with cc (worked with gcc).
990 Wed Jun 16 11:20:27 1993 Jean-loup Gailly (jloup@chorus.fr)
993 Let zmore act as more if the data is not gzipped.
994 By default, display output name only when name was actually truncated.
995 Use absolute path names in gzexe'd programs for better security.
996 In gzexe, use chmod 700 instead of 755 and don't gzexe tail,rm,etc...
998 Added a note about the fast options (-1 to -3) in algorithm.doc.
999 Improved man page for zgrep.
1000 Minor fixes to gzip.texi.
1001 Always set LC_ALL and LANG in configure (for tr on HPUX)
1003 Mon Jun 14 10:03:24 1993 Jean-loup Gailly (jloup@chorus.fr)
1006 Added the --list option to display the file characteristics.
1007 Added the --no-name option: do not save or restore original filename
1008 Save the original name by default.
1009 Allow gunzip --suffix "" to attempt decompression on any file
1010 regardless of its extension if an original name is present.
1011 Add support for the SCO compress -H format.
1012 gzip --fast now compresses faster (speed close to that of compress)
1013 with degraded compression ratio (but still better than compress).
1014 Default level changed to -6 (acts exactly as previous level -5) to
1015 be a better indication of its placement in the speed/ratio range.
1016 Use smart name truncation: 123456789012.c -> 123456789.c.gz
1017 instead of 12345678901.gz
1018 With --force, let zcat pass non gzip'ed data unchanged (zcat == cat)
1019 Added the zgrep shell script.
1020 Made sub.c useful for 16 bit sound, 24 bit images, etc..
1021 Supress warnings about suffix for gunzip -r, except with --verbose.
1022 Moved the sample programs to a subdirectory sample.
1023 On MSDOS, use .gz extension when possible (files without extension)
1024 Added a "Special targets" section in INSTALL.
1025 Use stty -g correctly in zmore.in.
1026 Use cheaper test for gzipness in zforce.in.
1027 Remove space before $ in match.S (no longer accepted by gas 2.x)
1028 For the shell scripts, do not assume that gzip is in the path.
1029 Fix syntax error and define lnk$library in vms/Makefile.mms
1030 REGSIGTYPE is void on the Amiga.
1031 Do not write empty line when decompressing stdin with --verbose.
1032 Fix the 1.1.2 fix for VMS (bug in get_suffix)
1033 Added warning in README about compiler bug on Solaris 2.1 for x86.
1034 Added warning about 'rehash' in INSTALL.
1035 Removed default value of read_buf in bits.c (supermax doesn't like).
1036 In tailor.h, added support for Borland C and Zortech C on OS/2.
1037 Added warning in gzexe about Ultrix buggy sh (use /bin/sh5 instead).
1038 Added warning in zdiff about AIX buggy sh (use /bin/ksh instead).
1039 In configure.in, do not try the asm code if DEFS contains NO_ASM
1041 Fri Jun 4 09:49:33 1993 Jean-loup Gailly (jloup@chorus.fr)
1044 Fix serious bug for VMS (-gz not removed when decompressing).
1045 Allow suffix other than .gz in znew.
1046 Do not display compression ratio when decompressing stdin.
1047 In zmore.in, work around brain damaged stty -g (Ultrix).
1048 Display a correct compression ratio for .Z files.
1049 Added .z to .gz renaming script in INTALL.
1050 Allow setting CFLAGS in configure.
1051 Add warning in README about bug in Concentrix cc compiler.
1052 Avoid || in Makefile.in (at least one make doesn't support this).
1053 Disable useless --ascii option for the Amiga.
1054 Add a pointer to the Primos executable in README.
1055 Added description of extra field in algorithm.doc.
1056 Do not redefine NULL in alloca.c.
1057 Added check for unsupported compression methods.
1058 Avoid getopt redeclaration on OSF/1.
1060 Tue Jun 1 09:07:15 1993 Jean-loup Gailly (jloup@chorus.fr)
1063 Fix serious bug in vms.c (== instead of =).
1064 Added --ascii option.
1065 Add workaround in configure.in for Ultrix (quote eval argument)
1066 Do not use unset in znew (not supported on Ultrix)
1067 Use tar.gz instead of tar.z for the distribution of gzip.
1068 Add missing menu item in gzip.texi.
1069 Use size_t instead of unsigned, add AC_SIZE_T in configure.in.
1071 Fri May 28 11:40:01 1993 Jean-loup Gailly (jloup@chorus.fr)
1074 Use .gz suffix by default, add --suffix option.
1075 Let gunzip accept a "_z" suffix (used by one 'compress' on Vax/VMS).
1076 Quit when reading garbage from stdin instead of reporting an error.
1077 Added sub.c and add.c for compression of 8 bit images.
1078 Added makefile for VAX/MMS and support for wildcards on VMS.
1079 Added support for MSC under OS/2.
1080 Added support for Prime/PRIMOS.
1081 Display compression ratio also when decompressing.
1082 Quit after --version (GNU standard)
1083 Use --force to bypass isatty() check.
1084 Accept --silent as synonym for --quiet (see longopts.table)
1085 Accept --to-stdout as synonym for --stdout (see longopts.table)
1086 Accept -H and -? in addition to -h and --help.
1087 Added comparison of zip and gzip in the readme file.
1088 Return an error code in all main compression/decompression functions.
1089 Continue processing other files in case of recoverable error.
1090 Add description of -f in znew.1.
1091 Do not keep uncompressed version for znew -t if .gz already exists.
1092 On Unix, use only st_ino and st_dev in same_file().
1093 Use S_IRUSR and S_IWUSR if they exist.
1094 "test $1 = -d" -> "test x$1 = x-d" in gzexe.
1095 In match.S, use symbol sysV68 to detect the Motorola Delta.
1096 Do not include memory.h with gcc (conflicting declarations on Sun).
1098 On VMS, define unlink as delete also for gcc.
1099 In "make check", unset LANG because "wc -c" fails on Kanji.
1100 Renamed shdir as scriptdir.
1101 Use the 68020 code instead of 68000 code on the NeXT.
1102 Documented --uncompress as synonym for --decompress.
1103 Include the standard header files before gzip.h (needed on Bull).
1104 Do not assume that _POSIX_VERSION implies dirent.h present.
1105 Removed gzip-tar.patch since tar 1.11.2 handles gzip directly.
1106 Use less memory when compiled with -DSMALL_MEM (for MSDOS).
1108 Don't complain if cc -E does not work correctly.
1109 Do not attempt reading 64K bytes on 16 bit Unix systems.
1110 Do not use the variable name 'overhead' which is reserved on Lynx!
1111 One BULL compiler does not like *p++ in inflate.c => *p, p++.
1112 Use casts on free and memcmp to avoid warnings.
1113 Remove the "off by more than one minute" time stamp kludge, but
1114 document how to avoid saving the time stamp on pipes if desired.
1115 Include crypt.h in inflate.c (one system predefines the CRYPT symbol).
1116 Add links to gunzip and (g)zcat in the default make rule.
1117 Create installation directories if they do not exist.
1118 Clarified --prefix option in INSTALL.
1119 Use symbol mc68k in match.S for the DIAB DS90.
1120 Guard against zero length _match.s in configure.in.
1121 In zmore, restore all tty options using stty -g.
1122 Added support for MacOS
1123 Simplified makecrc.c.
1124 Avoid warnings in getopt.c, util.c, unlzw.c.
1125 Use autoconf 1.4, in particular for INSTALL and AC_HAVE_POUNDBANG
1126 Use .so instead of hard links for zcat.1, gunzip.1 and zcmp.1.
1127 Fixed declration of sig_type.
1128 Make consistency check in fcfree.
1130 Do not complain if utime fails on a directory (for OS/2).
1132 Thu Mar 18 18:56:43 1993 Jean-loup Gailly (jloup@chorus.fr)
1135 Allow zmore to read from standard input (like more).
1136 Support the 68000 (Atari ST) in match.S.
1137 Retry partial writes (required on Linux when gzip is suspended in
1139 Allow full pathnames and renamings in gzexe.
1140 Don't let gzexe compress setuid executables or gzip itself.
1141 Added vms/Makefile.gcc for gcc on the Vax.
1142 Give a pointer to Solaris and VMS executables of gzip in README.
1143 Allow installation of binaries and shell scripts in different dirs.
1144 Do not use alloca on the Cray.
1145 Provide strspn and strcspn if string.h does not exist.
1146 Define O_CREAT and O_EXCL from FCREAT and FEXCL if necessary.
1147 Remove gzip.doc in make realclean.
1148 Fixed many typos. (Corrections to my English are welcome.)
1149 Put "make manext=l install" at the correct place in INSTALL.
1150 Fix incorrect examples in INSTALL and give more examples.
1151 Include zdiff.1 for install and uninstall.
1152 Allows complex PAGER variable in zmore (e.g.: PAGER="col -x | more")
1153 Avoid warning on unused indfound in getopt.c.
1154 Cast memset arg to void* (required by some buggy compilers).
1155 Include sys/types.h before dirent.h in acgeneral.m4.
1156 Fix acgeneral.m4 AC_COMPILE_CHECK to avoid warnings.
1157 Don't use alloca.c with gcc. (One NeXT user did not have alloca.h).
1158 Change all error messages according to GNU standards.
1159 Restore time stamp only if off by more than one minute.
1160 Allow installation of zcat as gzcat.
1161 Suppress help message and send compressed data to the terminal when
1162 gzip is invoked without parameters and without redirection.
1163 (Explicit request from Noah Friedman.)
1164 Add compile option GNU_STANDARD to respect the GNU coding standards:
1165 with -DGNU_STANDARD, behave as gzip even if invoked under the
1166 name gunzip. (Complaints to /dev/null or the FSF, not to me!)
1168 Fri Mar 10 13:27:18 1993 Jean-loup Gailly (jloup@chorus.fr)
1171 Let gzexe detect executables that are already gzexe'd.
1172 Don't try restoring record format on VMS (the simple 1.0.5 code
1173 worked correctly only on fixed-512 files). Suppress text_mode.
1174 Added asm version for 68000 in amiga/match.a.
1175 Use asm version for Atari TT.
1176 Fix "make clean" in vms/Makefile.vms.
1177 For OS/2, assume HPFS by default, add flag OS2FAT if necessary.
1178 Fixed some bugs in zdiff and define zcmp as a link to zdiff.
1180 Remove configure hack for NeXT; add general fix to autoconf instead
1181 Do not strip a ".z" extension if this results in an empty name.
1182 Avoid array overflow in get_prefix() for extensions > 10 chars.
1183 Accept either q or e to quit zmore.
1184 In zmore, try restoring tty mode in all cases.
1185 Use Motorola style for match.S on the NeXT.
1186 configure.in: unsetenv *hangs* with the Siemens csh...
1187 Update vms/gzip.hlp.
1189 Thu Mar 4 14:13:34 1993 Jean-loup Gailly (jloup@chorus.fr)
1192 For VMS, restore the file type for variable record format, otherwise
1193 extract in fixed length format (not perfect, but better than
1194 forcing all files to be in stream_LF format).
1195 Use "-z" suffix for VMS.
1196 Use only .z, .*-z, .tgz, .taz as valid gzip extensions; update
1198 Allow a version number in input file names for VMS.
1199 Added sample program zread.c.
1200 Fix "make check" for some implementations of /bin/sh.
1201 Don't rely on stat() for filenames with extension > 3 chars
1202 on MSDOS, OS2 and Atari.
1203 Garbage collect files in /tmp created by gzexe.
1205 Use TOUCH env variable in znew if it exists.
1206 Better error message for gunzip on empty or truncated file.
1207 Allow prototypes in getopt.h when __STDC__ defined but 0.
1208 Added "make clean" in vms/Makefile.vms.
1209 Removed -g from default CFLAGS (with Noah's permission!)
1210 Avoid too many HAVE_xxx_H for most systems; use common defaults.
1211 Moved default Atari flags into tailor.h for consistency.
1212 Use memzero() to clear the hash table.
1213 Update vms/gzip.hlp to reflect the VMS behavior.
1214 Fix OS_CODE (to fit in a byte).
1215 Add utime.h for the Amiga.
1216 Add gcc support for the Amiga.
1217 Work around incorrect dirent.h for NeXT 2.0.
1218 Added Makefile entry for Coherent.
1220 Fri Feb 22 11:20:49 1993 Jean-loup Gailly (jloup@chorus.fr)
1223 Added optimized asm version for 68020.
1224 Add support for DJGPP.
1225 Add support for the Atari ST.
1226 Added zforce to rename gzip'ed files with truncated names.
1227 Do not install with name uncompress (some systems rely on the
1228 absence of any check in the old uncompress).
1229 Added missing function (fcfree) in msdos/tailor.c
1230 Let gunzip handle .tgz files, and let gzip skip them.
1231 Added 'stty min 1' in zmore for SysV and fixed trap code.
1232 Suppress .PHONY in Makefile.in, which breaks old makes.
1233 Added documentation about pcat and unpack in INSTALL.
1234 Add cast to getenv for systems without stdlib.h.
1235 Use VAXC instead of VMS to avoid confusion for gcc.
1238 Try preserving file permissions in gzexe.
1239 Added -d option for gzexe.
1240 Guard against spaces in file names in gzexe.
1241 Use CMP env. variable in zcmp.
1242 Return a warning exit status for gzip of file with .z suffix.
1243 Suppress usage of d_ino which is not portable to all systems.
1244 Use #ifdef instead of #if for consistency.
1245 For VMS, use "cc util.c" instead of "cc util" (pb with logical names)
1246 Added utime() for Amiga.
1247 Renamed gzcat.1 as zcat.1.
1248 Include fcntl.h for Amiga (for read and write).
1249 For VMS, add definition of symbols and links in the makefiles.
1250 Give a VMS look to vms/gzip.hlp.
1251 Save the original name only when necessary.
1252 Add a mode parameter for open in read mode (required by VMS).
1253 For VMS, remove the version suffix from the original name.
1254 Accept both / and \ as path separator for MSDOS.
1255 Let gunzip extract stored .zip files correctly.
1256 Added warning about VFC format in vms/gzip.hlp.
1257 In znew, skip a bad file but process the others.
1259 Use GZIP_OPT for VMS to avoid conflict with program name.
1260 Added description of GZIP variable in gzip.texi.
1262 Thu Feb 11 17:21:32 1993 Jean-loup Gailly (jloup@chorus.fr)
1265 Add -K option for znew to keep old .Z files if smaller.
1266 Add -q option (quiet) to cancel -v in GZIP env variable.
1267 For Turbo C, normalize pointers before freeing them.
1268 Add more safety checks in add_envopt().
1269 Add do_exit() for uniform exit path (always free memory).
1270 Reduce MAX_PATH_LEN for MSDOS.
1271 Include sys/types.h before signal.h
1272 Avoid strdup, the NeXT does not have it.
1273 Made gzexe safer on systems with filename limitation to 14 chars.
1275 Fri Feb 10 09:45:49 1993 Jean-loup Gailly (jloup@chorus.fr)
1278 Added env variable GZIP for default options.
1279 Added support for the Amiga.
1280 znew now keeps the old .Z if it is smaller than the .z file.
1281 Added gzexe to compress rarely used executables.
1282 Reduce memory usage when using static allocation (no DYN_ALLOC).
1283 Better separation of warning and error return codes.
1284 Fix unlzw.c to make DYN_ALLOC and MAXSEG_64K independent options.
1285 Allow INBUFSIZ to be >= 32K in unlzw (don't use sign of rsize)
1286 Generate tar file in old format to avoid problems with old systems.
1287 Preserve time stamp in znew -P if touch -r works.
1288 Use ${PAGER-more} instead of ${PAGER:-more} in zmore.
1289 Do not use unsigned instead of mode_t.
1290 Better error message for trailing garbage in .z file; ignore this
1292 In zmore, use icanon instead of -cbreak on SYSV.
1293 Add trap handler in zmore.
1294 Use char* instead of void* for non STDC compilers.
1295 Added makefile entry for Xenix on 286.
1296 Return an error code when existing file was not overwritten.
1297 Use prototype of lzw.h for lzw.c.
1298 Fix znew with -P option alone.
1299 Give warning for directories even without -v.
1300 Close output file before unlink() in case of error.
1301 Suppress all target dependent ifdef from the portable files.
1302 Free all dynamically allocated variables upon exit.
1304 Thu Feb 4 18:23:56 1993 Jean-loup Gailly (jloup@chorus.fr)
1307 Fixed some trivial errors in msdos/Makefile.bor
1309 Thu Feb 4 10:00:59 1993 Jean-loup Gailly (jloup@chorus.fr)
1312 gzip now runs on Vax/VMS (Amiga support will come in next version).
1313 Do not overwrite files without -f when using /bin/sh.
1314 Support the test option -t for compressed (.Z) files.
1315 Flush output for bad compressed files. Add warning in README.
1316 Added makefiles for MSDOS.
1317 Don't rely on presence of csh in configure
1318 Added gunzip.1 and gzcat.1.
1320 Check reserved flags in unlzw().
1321 Return dummy value in main to avoid lint warning.
1322 Define OF in lzw.h for lint.
1323 Allow both "znew -v -t" and "znew -vt".
1324 Don't overwrite the output file name for multiple parts.
1325 Echo just a warning if configure is out of date.
1326 Use ; instead of , in trees.c (confuses the SAS Amiga compiler).
1327 In INSTALL, document "DEFS='-DM_XENIX' ./configure".
1328 Use OTHER_PATH_SEP for more portability (DOS, OS2, VMS, AMIGA).
1329 Make all directories world writable for broken versions of tar.
1330 Use gzip -cd instead of zcat in zmore, zcmp, zdiff.
1331 Don't use GNU tar for distributions, some systems can't untar.
1332 Do not exit() for gzip --version.
1334 Mon Jan 26 10:26:42 1993 Jean-loup Gailly (jloup@chorus.fr)
1336 * Beta version 0.8.2
1337 Avoid 'far' declarations for MSDOS.
1338 Use test -f instead of test -x in configure.in (for Ultrix)
1339 Add empty else part to if in Makefile.in for broken shells.
1340 Use NO_UNDERLINE instead of UNDERLINE (pb with Linux cpp)
1341 Accept continuation files with -ff (for damage recovery)
1342 Small patch to Makefile.os2
1343 Use memzero instead of bzero to avoid potential conflicts
1344 Document restriction on extraction of zip files.
1345 Fix quoting in ACL_HAVE_SHELL_HACK.
1346 Do not check file size on MSDOS because of bug in DIET.
1347 Allow zcat on a file with multiple links.
1348 Add fix in inflate.c for compatibility with pkzip 2.04c.
1349 Release gzip in tar.z and tar format. (No tar.Z).
1351 Fri Jan 22 10:04:13 1993 Jean-loup Gailly (jloup@chorus.fr)
1353 * Beta version 0.8.1
1355 Fixed #if directives that TurboC does not like.
1356 Don't rely on uncompress in znew, use gzip -d.
1357 Add the pipe option -P in znew.
1358 Add some more ideas in TODO.
1359 Support both NDIR and SYSNDIR.
1361 Sat Jan 21 15:46:38 1993 Jean-loup Gailly (jloup@chorus.fr)
1365 Check for _match.o in configure.in in addition to return status.
1366 Include <sys/types.h> in zip.c
1367 Define local variables and functions as local.
1368 Accept more alternative names for the program (pcat, gzcat, ...).
1369 Accept .exe as well as .EXE.
1370 Uncompress files with multiple links only with -f.
1371 Better error message for gunzip of non-existent file.z.
1372 Fix the entry for /etc/magic in INSTALL.
1373 Use AC_HAVE_HEADERS uniformly instead of special macros.
1374 Install the man pages as .1 by default instead of .l.
1375 Document crypt++.el in README.
1376 Fix for unlzw() on 16-bit machines (bitmask must be unsigned).
1377 Complain if input and output files are identical.
1378 Create a correct output name for files of exactly 13 chars.
1379 Do not overwrite CPP if set
1380 Check for i386 before trying to assemble match.s
1381 Check for underline in external name before assembling
1382 Add patch for tar 1.11.1.
1384 Mon Jan 5 10:16:24 1993 Jean-loup Gailly (jloup@chorus.fr)
1387 Use "make check" instead of "make test".
1388 Do not rely on dirname in znew.
1389 Keep time stamp and pass options to gzip in znew.
1390 Rename .l files back to .1 to avoid conflict with lex
1391 Do not create .z.z files with gzip -r.
1392 Use nice_match in match.asm
1393 Unroll loops in deflate.c
1394 Do not attempt matches beyond the window end
1395 Allow again gunzip .zip files (was working in 0.5)
1396 Allow again compilation with TurboC 2.0 (was working in 0.4)
1398 Tue Dec 30 20:00:19 1992 Jean-loup Gailly (jloup@chorus.fr)
1401 The .z extension is used by pack, not compact (README, gzip.1)
1402 Accept gzcat in addition to zcat.
1403 Use PAGER in zmore if defined.
1404 Man pages for /usr/local/man/manl should have extension .l.
1405 Don't redefine bzero on the NeXT
1406 Allow incomplete Huffman table if there is only one code.
1407 Don't lookahead more than 7 bits (caused premature EOF).
1408 Added "make test" to check for compiler bugs.
1409 Don't rely on `i386`; try to assemble directly
1410 Change magic header to avoid conflict with freeze 1.x.
1411 Added entry for /etc/magic in INSTALL.
1412 Do not destroy an input .zip file with more than one member.
1413 Display "untested" instead of "OK" for gzip -t foo.Z
1414 With -t, skip stdin in .Z format
1415 Allow multiple compressed members in an input file.
1416 Ignore a zero time stamp.
1419 Tue Dec 29 10:00:19 1992 Noah Friedman (friedman@gnu.ai.mit.edu)
1421 Added test for #!/bin/sh in configure.in.
1422 Fix some references to $srcdir in Makefile.in
1424 Mon Dec 21 17:33:35 1992 Jean-Loup Gailly (jloup@chorus.fr)
1427 Put RCS ids in all files.
1428 Added znew to recompress old .Z files with gzip.
1429 Avoid "already .z suffix" messages for -r and no -v.
1430 Put back check for d_ino in treat_dir().
1431 Use HAVE_STRING_H instead of USG.
1432 Added os2/Makefile.os2
1433 Use SYSUTIME on OS/2.
1434 Info dir is $(prefix)/info, not $(prefix)/lib/info.
1435 Support long options, added getopt and alloca
1437 Reorder configure.in according to suggestions in autoconf.info
1438 Allow links when not removing original file
1439 Allow either .z or .Z in zdiff
1441 Wed Nov 25 11:40:04 1992 Jean-loup Gailly (jloup@chorus.fr)
1443 * Beta version 0.4.1
1444 Save only the original base name, don't include any directory prefix.
1445 Don't use HAVE_LONG_FILE_NAMES (support multiple file system types).
1446 Fix declaration of abort_gzip in gzip.h.
1447 Include unistd.h when it exists to avoid warnings with gcc -Wall.
1449 Mon Nov 23 12:39:01 1992 Jean-loup Gailly (jloup@chorus.fr)
1453 Use autoconf generated 'configure'
1454 Fixed the NO_MULTIPLE_DOTS code
1455 Fixed the save_orig_name code
1456 Support for MSDOS (Turbo C)
1458 Thu Nov 19 15:18:22 1992 Jean-loup Gailly (jloup@chorus.fr)
1461 Added auto configuration. Just type "make" now.
1462 Don't overwrite compress by default in "make install". Use
1463 "make install_compress" to overwrite.
1464 Add match.s for 386 boxes.
1465 Added documentation in texinfo format.
1466 Provide help for "gunzip" invoked without redirected input.
1467 Save original file name when necessary.
1468 Support OS/2 (Kai-Uwe Rommel).
1470 Tue Nov 17 14:32:53 1992 Jean-loup Gailly (jloup@chorus.fr)
1472 * Alpha version 0.2.4
1473 Return 0 in get_istat() when ok (caused error with zcat).
1474 Don't update crc on compressed data (caused crc errors on
1477 Fri Nov 13 15:04:12 1992 Jean-loup Gailly (jloup@chorus.fr)
1479 * Alpha version 0.2.3
1480 Initialize rsize in unlzw.c
1481 Initialize ofd for zcat.
1482 Do not use volatile ifname as argument of treat_dir.
1483 Add -1 to -9 in gzip.1.
1485 Sat Oct 31 18:30:00 1992 Jean-loup Gailly (jloup@chorus.fr)
1487 * Alpha version 0.2.2.
1489 Accept gunzip on zip files.
1491 Sat Oct 31 17:15:00 1992 Jean-loup Gailly (jloup@chorus.fr)
1493 * Alpha version 0.2.1
1494 Use ctype.h in util.c (problem on SysV).
1495 Create BINDIR if it does not exist.
1497 Added zcmp, zmore, zdiff.
1498 Fixed the man page gzip.1.
1500 Sat Oct 31 17:00:00 1992 Jean-loup Gailly (jloup@chorus.fr)
1503 Fixed compilation problems with gcc
1505 Sat Oct 31 12:46:00 1992 Jean-loup Gailly (jloup@chorus.fr)
1507 * Alpha version 0.1 released (under time pressure), so it's not
1513 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2006 Free
1514 Software Foundation, Inc.
1516 Copyright (C) 1992, 1993 Jean-loup Gailly
1518 Copying and distribution of this file, with or without
1519 modification, are permitted provided the copyright notice
1520 and this notice are preserved.