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Diffstat (limited to '')
| -rw-r--r-- | gc/acinclude.m4 | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/gc/acinclude.m4 b/gc/acinclude.m4 new file mode 100644 index 0000000..abea23b --- /dev/null +++ b/gc/acinclude.m4 @@ -0,0 +1,182 @@ +# Copyright (c) 1999-2001 by Red Hat, Inc. All rights reserved. +# +# THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED +# OR IMPLIED. ANY USE IS AT YOUR OWN RISK. +# +# Permission is hereby granted to use or copy this program +# for any purpose, provided the above notices are retained on all copies. +# Permission to modify the code and to distribute modified code is granted, +# provided the above notices are retained, and a notice that the code was +# modified is included with the above copyright notice. +# +# Original author: Tom Tromey + +# FIXME: We temporarily define our own version of AC_PROG_CC. This is +# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We +# are probably using a cross compiler, which will not be able to fully +# link an executable. This should really be fixed in autoconf +# itself. + +AC_DEFUN(GC_CONFIGURE, +[ +dnl Default to --enable-multilib +AC_ARG_ENABLE(multilib, +[ --enable-multilib build many library versions (default)], +[case "${enableval}" in + yes) multilib=yes ;; + no) multilib=no ;; + *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; + esac], [multilib=yes])dnl + +dnl We may get other options which we don't document: +dnl --with-target-subdir, --with-multisrctop, --with-multisubdir + +dnl I needed to add the -n test to allow configuration in src directory - HB +if test "[$]{srcdir}" = "."; then + if test "[$]{with_target_subdir}" != "." -a -n "[$]{with_target_subdir}"; then + gc_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1" + else + gc_basedir="[$]{srcdir}/[$]{with_multisrctop}$1" + fi +else + gc_basedir="[$]{srcdir}/$1" +fi +AC_SUBST(gc_basedir) +AC_CONFIG_AUX_DIR($gc_basedir) + +AC_CANONICAL_SYSTEM + +AM_INIT_AUTOMAKE(gc, 6.0, no-define) + +# FIXME: We temporarily define our own version of AC_PROG_CC. This is +# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We +# are probably using a cross compiler, which will not be able to fully +# link an executable. This should really be fixed in autoconf +# itself. + +AC_DEFUN(LIB_AC_PROG_CC, +[AC_BEFORE([$0], [AC_PROG_CPP])dnl +dnl Fool anybody using AC_PROG_CC. +AC_PROVIDE([AC_PROG_CC]) +AC_CHECK_PROG(CC, gcc, gcc) +if test -z "$CC"; then + AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) + test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) +fi + +AC_PROG_CC_GNU + +if test $ac_cv_prog_gcc = yes; then + GCC=yes +dnl Check whether -g works, even if CFLAGS is set, in case the package +dnl plays around with CFLAGS (such as to build both debugging and +dnl normal versions of a library), tasteless as that idea is. + ac_test_CFLAGS="${CFLAGS+set}" + ac_save_CFLAGS="$CFLAGS" + CFLAGS= + AC_PROG_CC_G + if test "$ac_test_CFLAGS" = set; then + CFLAGS="$ac_save_CFLAGS" + elif test $ac_cv_prog_cc_g = yes; then + CFLAGS="-g -O2" + else + CFLAGS="-O2" + fi +else + GCC= + test "${CFLAGS+set}" = set || CFLAGS="-g" +fi +]) + +LIB_AC_PROG_CC + +# Likewise for AC_PROG_CXX. +AC_DEFUN(LIB_AC_PROG_CXX, +[AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl +dnl Fool anybody using AC_PROG_CXX. +AC_PROVIDE([AC_PROG_CXX]) +AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc) +test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) + +AC_PROG_CXX_GNU + +if test $ac_cv_prog_gxx = yes; then + GXX=yes +dnl Check whether -g works, even if CXXFLAGS is set, in case the package +dnl plays around with CXXFLAGS (such as to build both debugging and +dnl normal versions of a library), tasteless as that idea is. + ac_test_CXXFLAGS="${CXXFLAGS+set}" + ac_save_CXXFLAGS="$CXXFLAGS" + CXXFLAGS= + AC_PROG_CXX_G + if test "$ac_test_CXXFLAGS" = set; then + CXXFLAGS="$ac_save_CXXFLAGS" + elif test $ac_cv_prog_cxx_g = yes; then + CXXFLAGS="-g -O2" + else + CXXFLAGS="-O2" + fi +else + GXX= + test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" +fi +]) + +LIB_AC_PROG_CXX + +# AC_CHECK_TOOL does AC_REQUIRE (AC_CANONICAL_BUILD). If we don't +# run it explicitly here, it will be run implicitly before +# NEWLIB_CONFIGURE, which doesn't work because that means that it will +# be run before AC_CANONICAL_HOST. +AC_CANONICAL_BUILD + +AC_CHECK_TOOL(AS, as) +AC_CHECK_TOOL(AR, ar) +AC_CHECK_TOOL(RANLIB, ranlib, :) + +AC_PROG_INSTALL + +AM_MAINTAINER_MODE + +# We need AC_EXEEXT to keep automake happy in cygnus mode. However, +# at least currently, we never actually build a program, so we never +# need to use $(EXEEXT). Moreover, the test for EXEEXT normally +# fails, because we are probably configuring with a cross compiler +# which can't create executables. So we include AC_EXEEXT to keep +# automake happy, but we don't execute it, since we don't care about +# the result. +if false; then + # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands + # to nothing, so nothing would remain between `then' and `fi' if it + # were not for the `:' below. + : + AC_EXEEXT +fi + +. [$]{srcdir}/configure.host + +case [$]{gc_basedir} in +/* | [A-Za-z]:[/\\]*) gc_flagbasedir=[$]{gc_basedir} ;; +*) gc_flagbasedir='[$](top_builddir)/'[$]{gc_basedir} ;; +esac + +gc_cflags="[$]{gc_cflags} -I"'[$](top_builddir)'"/$1/targ-include -I[$]{gc_flagbasedir}/libc/include" +case "${host}" in + *-*-cygwin32*) + gc_cflags="[$]{gc_cflags} -I[$]{gc_flagbasedir}/../winsup/include" + ;; +esac + +dnl gc_cflags="[$]{gc_cflags} -fno-builtin" + +GC_CFLAGS=${gc_cflags} +AC_SUBST(GC_CFLAGS) +])) + +)))) + +sinclude(libtool.m4) +dnl The line below arranges for aclocal not to bring a definition of +dnl AM_PROG_LIBTOOL into aclocal.m4, while still arranging for automake +dnl to add a definition of LIBTOOL to Makefile.in. +ifelse(yes,no,[AC_DEFUN([AM_PROG_LIBTOOL],[AC_SUBST(LIBTOOL)])]) |