1 # Copyright (c) 1999-2001 by Red Hat, Inc. All rights reserved.
3 # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
4 # OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
6 # Permission is hereby granted to use or copy this program
7 # for any purpose, provided the above notices are retained on all copies.
8 # Permission to modify the code and to distribute modified code is granted,
9 # provided the above notices are retained, and a notice that the code was
10 # modified is included with the above copyright notice.
12 # Original author: Tom Tromey
14 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
15 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
16 # are probably using a cross compiler, which will not be able to fully
17 # link an executable. This should really be fixed in autoconf
20 AC_DEFUN(GC_CONFIGURE,
22 dnl Default to --enable-multilib
23 AC_ARG_ENABLE(multilib,
24 [ --enable-multilib build many library versions (default)],
25 [case "${enableval}" in
28 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
29 esac], [multilib=yes])dnl
31 dnl We may get other options which we don't document:
32 dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
34 dnl I needed to add the -n test to allow configuration in src directory - HB
35 if test "[$]{srcdir}" = "."; then
36 if test "[$]{with_target_subdir}" != "." -a -n "[$]{with_target_subdir}"; then
37 gc_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
39 gc_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
42 gc_basedir="[$]{srcdir}/$1"
45 AC_CONFIG_AUX_DIR($gc_basedir)
49 AM_INIT_AUTOMAKE(gc, 6.0, no-define)
51 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
52 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
53 # are probably using a cross compiler, which will not be able to fully
54 # link an executable. This should really be fixed in autoconf
57 AC_DEFUN(LIB_AC_PROG_CC,
58 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
59 dnl Fool anybody using AC_PROG_CC.
60 AC_PROVIDE([AC_PROG_CC])
61 AC_CHECK_PROG(CC, gcc, gcc)
62 if test -z "$CC"; then
63 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
64 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
69 if test $ac_cv_prog_gcc = yes; then
71 dnl Check whether -g works, even if CFLAGS is set, in case the package
72 dnl plays around with CFLAGS (such as to build both debugging and
73 dnl normal versions of a library), tasteless as that idea is.
74 ac_test_CFLAGS="${CFLAGS+set}"
75 ac_save_CFLAGS="$CFLAGS"
78 if test "$ac_test_CFLAGS" = set; then
79 CFLAGS="$ac_save_CFLAGS"
80 elif test $ac_cv_prog_cc_g = yes; then
87 test "${CFLAGS+set}" = set || CFLAGS="-g"
93 # Likewise for AC_PROG_CXX.
94 AC_DEFUN(LIB_AC_PROG_CXX,
95 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
96 dnl Fool anybody using AC_PROG_CXX.
97 AC_PROVIDE([AC_PROG_CXX])
98 AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
99 test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
103 if test $ac_cv_prog_gxx = yes; then
105 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
106 dnl plays around with CXXFLAGS (such as to build both debugging and
107 dnl normal versions of a library), tasteless as that idea is.
108 ac_test_CXXFLAGS="${CXXFLAGS+set}"
109 ac_save_CXXFLAGS="$CXXFLAGS"
112 if test "$ac_test_CXXFLAGS" = set; then
113 CXXFLAGS="$ac_save_CXXFLAGS"
114 elif test $ac_cv_prog_cxx_g = yes; then
121 test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
127 # AC_CHECK_TOOL does AC_REQUIRE (AC_CANONICAL_BUILD). If we don't
128 # run it explicitly here, it will be run implicitly before
129 # NEWLIB_CONFIGURE, which doesn't work because that means that it will
130 # be run before AC_CANONICAL_HOST.
133 AC_CHECK_TOOL(AS, as)
134 AC_CHECK_TOOL(AR, ar)
135 AC_CHECK_TOOL(RANLIB, ranlib, :)
141 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
142 # at least currently, we never actually build a program, so we never
143 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
144 # fails, because we are probably configuring with a cross compiler
145 # which can't create executables. So we include AC_EXEEXT to keep
146 # automake happy, but we don't execute it, since we don't care about
149 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
150 # to nothing, so nothing would remain between `then' and `fi' if it
151 # were not for the `:' below.
156 . [$]{srcdir}/configure.host
158 case [$]{gc_basedir} in
159 /* | [A-Za-z]:[/\\]*) gc_flagbasedir=[$]{gc_basedir} ;;
160 *) gc_flagbasedir='[$](top_builddir)/'[$]{gc_basedir} ;;
163 gc_cflags="[$]{gc_cflags} -I"'[$](top_builddir)'"/$1/targ-include -I[$]{gc_flagbasedir}/libc/include"
166 gc_cflags="[$]{gc_cflags} -I[$]{gc_flagbasedir}/../winsup/include"
170 dnl gc_cflags="[$]{gc_cflags} -fno-builtin"
172 GC_CFLAGS=${gc_cflags}
179 dnl The line below arranges for aclocal not to bring a definition of
180 dnl AM_PROG_LIBTOOL into aclocal.m4, while still arranging for automake
181 dnl to add a definition of LIBTOOL to Makefile.in.
182 ifelse(yes,no,[AC_DEFUN([AM_PROG_LIBTOOL],[AC_SUBST(LIBTOOL)])])