# Configure template for gzip. # Copyright (C) 1999, 2000, 2001, 2002, 2006, 2007 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_PREREQ([2.60]) AC_INIT([gzip], [1.3.12], [bug-gzip@gnu.org]) AC_CONFIG_SRCDIR(gzip.c) AC_CONFIG_AUX_DIR(build-aux) AC_CONFIG_HEADERS([lib/config.h:lib/config.hin]) AM_INIT_AUTOMAKE([gnits]) AC_PROG_CC_STDC AM_PROG_CC_C_O AC_PROG_CPP AC_CHECK_TOOL([NM], [nm], [nm]) AC_PROG_LN_S AC_PROG_RANLIB AC_PROG_SHELL gl_EARLY AC_SYS_LARGEFILE gl_INIT # cc -E produces incorrect asm files on SVR4, so postprocess it. ASCPPPOST="sed '/^ *#/d; s,//.*,,; s/% /%/g; s/\\. /./g'" AC_SUBST([ASCPPPOST]) AC_CACHE_CHECK([for underline in external names], [gzip_cv_underline], [gzip_cv_underline=yes AC_TRY_COMPILE([int foo() {return 0;}], [], [$NM conftest.$OBJEXT | grep _foo >/dev/null 2>&1 || gzip_cv_underline=no])]) ASCPPFLAGS= if test $gzip_cv_underline = no; then ASCPPFLAGS='-DNO_UNDERLINE' fi AC_SUBST([ASCPPFLAGS]) AC_OBJEXT # Try to assemble match.S. # "gcc -E match.s" ignores -E, so we must use _match.S. AC_CACHE_CHECK([for an assembler syntax supported by this package], [gzip_cv_assembler], [gzip_cv_assembler=no case " $DEFS " in *' NO_ASM '*) ;; *) if cp $srcdir/lib/match.c _match.S && eval "$CPP $CPPFLAGS $ASCPPFLAGS _match.S > _match.i" 2>/dev/null && eval "$ASCPPPOST < _match.i > match_.s" 2>/dev/null; then if test ! -s match_.s || grep error < match_.s > /dev/null; then : elif eval "$CC $CPPFLAGS $CFLAGS -c match_.s >/dev/null 2>&1" && test -f match_.$OBJEXT; then rm -f match_.$OBJEXT gzip_cv_assembler=yes if echo 'void foo (void) {}' > conftest.c && eval "$CC $CPPFLAGS $CFLAGS -S conftest.c >/dev/null 2>&1" && grep '\.note\.GNU-stack' conftest.s >/dev/null 2>&1 && eval "$CC $CPPFLAGS $CFLAGS -c -Wa,--noexecstack match_.s >/dev/null 2>&1" && test -f match_.$OBJEXT; then gzip_cv_assembler='yes, with -Wa,--noexecstack' fi fi fi rm -f conftest* _match.i _match.S match_.s match_.$OBJEXT;; esac]) if test "$gzip_cv_assembler" != no; then AC_DEFINE(ASMV, , [Define if an assembler version of longest_match is available.]) AC_LIBOBJ(match) fi if test "$gzip_cv_assembler" = 'yes, with -Wa,--noexecstack'; then ASFLAGS_config='-Wa,--noexecstack' else ASFLAGS_config= fi AC_SUBST([ASFLAGS_config]) AC_ISC_POSIX AC_C_CONST AC_HEADER_STDC AC_CHECK_HEADERS_ONCE(fcntl.h limits.h memory.h time.h) AC_CHECK_FUNCS_ONCE([chown fchmod fchown fdopendir lstat siginterrupt]) AC_HEADER_DIRENT AC_TYPE_SIGNAL AC_TYPE_SIZE_T AC_TYPE_OFF_T AC_PREFIX_PROGRAM(gzip) AC_CONFIG_FILES([Makefile doc/Makefile lib/Makefile]) AC_OUTPUT