1 # Configure template for gzip.
3 # Copyright (C) 1999, 2000, 2001, 2002, 2006 Free Software Foundation, Inc.
4 # Copyright (C) 1992-1993 Jean-loup Gailly
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation; either version 2, or (at your option)
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program; if not, write to the Free Software
18 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
22 AC_INIT([gzip], [1.3.9], [bug-gzip@gnu.org])
23 AC_CONFIG_SRCDIR(gzip.c)
24 AC_CONFIG_AUX_DIR(build-aux)
25 AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
26 AM_INIT_AUTOMAKE([gnits])
31 AC_CHECK_TOOL([NM], [nm], [nm])
41 # cc -E produces incorrect asm files on SVR4, so postprocess it.
42 ASCPPPOST="sed '/^ *#/d; s,//.*,,; s/% /%/g; s/\\. /./g'"
45 AC_CACHE_CHECK([for underline in external names], [gzip_cv_underline],
46 [gzip_cv_underline=yes
47 AC_TRY_COMPILE([int foo() {return 0;}], [],
48 [$NM conftest.$OBJEXT | grep _foo >/dev/null 2>&1 ||
49 gzip_cv_underline=no])])
51 if test $gzip_cv_underline = no; then
52 ASCPPFLAGS='-DNO_UNDERLINE'
54 AC_SUBST([ASCPPFLAGS])
57 # Try to assemble match.S.
58 # "gcc -E match.s" ignores -E, so we must use _match.S.
59 AC_CACHE_CHECK([for an assembler syntax supported by this package],
65 if cp $srcdir/lib/match.c _match.S &&
66 eval "$CPP $CPPFLAGS $ASCPPFLAGS _match.S > _match.i" 2>/dev/null &&
67 eval "$ASCPPPOST < _match.i > match_.s" 2>/dev/null; then
68 if test ! -s match_.s || grep error < match_.s > /dev/null; then
70 elif eval "$CC $CPPFLAGS $CFLAGS -c match_.s >/dev/null 2>&1" &&
71 test -f match_.$OBJEXT; then
74 if echo 'void foo (void) {}' > conftest.c &&
75 eval "$CC $CPPFLAGS $CFLAGS -S conftest.c >/dev/null 2>&1" &&
76 grep '\.note\.GNU-stack' conftest.s >/dev/null 2>&1 &&
77 eval "$CC $CPPFLAGS $CFLAGS -c -Wa,--noexecstack match_.s >/dev/null 2>&1" &&
78 test -f match_.$OBJEXT; then
79 gzip_cv_assembler='yes, with -Wa,--noexecstack'
83 rm -f conftest* _match.i _match.S match_.s match_.$OBJEXT;;
85 if test "$gzip_cv_assembler" != no; then
87 [Define if an assembler version of longest_match is available.])
90 if test "$gzip_cv_assembler" = 'yes, with -Wa,--noexecstack'; then
91 ASFLAGS_config='-Wa,--noexecstack'
95 AC_SUBST([ASFLAGS_config])
100 AC_CHECK_HEADERS_ONCE(fcntl.h limits.h memory.h time.h)
101 AC_CHECK_FUNCS_ONCE([chown fchmod fchown fdopendir lstat siginterrupt])
107 AC_PREFIX_PROGRAM(gzip)
109 AC_CONFIG_FILES([Makefile doc/Makefile lib/Makefile])