1 # Process this file with autoconf to produce a configure script.
2 # Copyright (C) 1995, 1997, 1998, 1999, 2002 Free Software Foundation, Inc.
3 # Contributed by Dave Love (d.love@dl.ac.uk).
5 #This file is part of GNU Objective C.
7 #GNU Objective C is free software; you can redistribute it and/or modify
8 #it under the terms of the GNU General Public License as published by
9 #the Free Software Foundation; either version 2, or (at your option)
12 #GNU Objective C is distributed in the hope that it will be useful,
13 #but WITHOUT ANY WARRANTY; without even the implied warranty of
14 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 #GNU General Public License for more details.
17 #You should have received a copy of the GNU General Public License
18 #along with GNU Objective C; see the file COPYING. If not, write to
19 #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 AC_CONFIG_HEADER(config.h)
26 # This works around the fact that libtool configuration may change LD
27 # for this particular configuration, but some shells, instead of
28 # keeping the changes in LD private, export them just because LD is
30 ORIGINAL_LD_FOR_MULTILIBS=$LD
33 target_alias=${target_alias-$target}
34 AC_SUBST(target_alias)
37 GLIBCPP_EXPORT_INSTALL_INFO
39 # If the language specific compiler does not exist, but the "gcc" directory
40 # does, we do not build anything. Note, $r is set by the top-level Makefile.
41 # Note that when we look for the compiler, we search both with and without
42 # extension to handle cross and canadian cross builds.
45 AC_MSG_CHECKING(if compiler $compiler_name has been built)
46 AC_CACHE_VAL(objc_cv_compiler_exists,
47 [objc_cv_compiler_exists=yes
49 if test -d "$r"/gcc; then
50 if test -f "$r"/gcc/$compiler_name \
51 || test -f "$r"/gcc/$compiler_name.exe; then
54 objc_cv_compiler_exists=no
55 echo "rm -f config.cache config.log multilib.out" > skip-this-dir
60 AC_MSG_RESULT($objc_cv_compiler_exists)
61 if test x$objc_cv_compiler_exists = xno
63 rm -f Makefile conftest* confdefs* core
67 dnl Checks for programs.
69 # Disable shared libs by default
71 # Enable Win32 DLL on MS Windows - FIXME
76 dnl These should be inherited in the recursive make, but ensure they are
80 if test "$RANLIB"; then :
88 dnl Checks for header files.
89 # Sanity check for the cross-compilation case:
90 AC_CHECK_HEADER(stdio.h,:,
91 [AC_MSG_ERROR([Can't find stdio.h.
92 You must have a usable C system for the target already installed, at least
93 including headers and, preferably, the library, before you can configure
94 the Objective C runtime system. If necessary, install gcc now with
95 \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])])
99 AC_CHECK_HEADERS(sched.h)
101 # Determine CFLAGS for gthread.
103 AC_CACHE_CHECK([for gthread cflags],objc_cv_gthread_flags,
104 [if test -f "$r"/gcc/Makefile
106 objc_cv_gthread_flags=`grep \^GTHREAD_FLAGS "$r"/gcc/Makefile | awk -F= '{ print $2 }'`
108 AC_MSG_ERROR([not found])
110 GTHREAD_FLAGS=$objc_cv_gthread_flags
111 AC_SUBST(GTHREAD_FLAGS)
113 AC_ARG_ENABLE(objc-gc,
114 [ --enable-objc-gc enable the use of Boehm's garbage collector with
115 the GNU Objective-C runtime.],
116 if [[[ x$enable_objc_gc = xno ]]]; then
119 OBJC_BOEHM_GC=libobjc_gc.la
122 AC_SUBST(OBJC_BOEHM_GC)
125 # We need multilib support, but only if configuring for the target.
127 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
128 if test -n "$CONFIG_FILES"; then
129 if test -n "${with_target_subdir}"; then
130 # FIXME: We shouldn't need to set ac_file
132 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
133 . ${toplevel_srcdir}/config-ml.in
139 with_target_subdir=${with_target_subdir}
140 with_multisubdir=${with_multisubdir}
141 ac_configure_args="--enable-multilib ${ac_configure_args}"
142 toplevel_srcdir=${toplevel_srcdir}
143 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
148 dnl comment-start: "dnl "
150 dnl comment-start-skip: "\\bdnl\\b\\s *"