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=$LD
32 GLIBCPP_TOPREL_CONFIGURE
35 target_alias=${target_alias-$target}
36 AC_SUBST(target_alias)
39 GLIBCPP_EXPORT_INSTALL_INFO
41 # If the language specific compiler does not exist, but the "gcc" directory
42 # does, we do not build anything. Note, $r is set by the top-level Makefile.
43 # Note that when we look for the compiler, we search both with and without
44 # extension to handle cross and canadian cross builds.
47 AC_MSG_CHECKING(if compiler $compiler_name has been built)
48 AC_CACHE_VAL(objc_cv_compiler_exists,
49 [objc_cv_compiler_exists=yes
51 if test -d "$r"/gcc; then
52 if test -f "$r"/gcc/$compiler_name \
53 || test -f "$r"/gcc/$compiler_name.exe; then
56 objc_cv_compiler_exists=no
57 echo "rm -f config.cache config.log multilib.out" > skip-this-dir
62 AC_MSG_RESULT($objc_cv_compiler_exists)
63 if test x$objc_cv_compiler_exists = xno
65 rm -f Makefile conftest* confdefs* core
69 dnl Checks for programs.
71 # Disable shared libs by default
73 # Enable Win32 DLL on MS Windows - FIXME
78 dnl These should be inherited in the recursive make, but ensure they are
82 if test "$RANLIB"; then :
90 dnl Checks for header files.
91 # Sanity check for the cross-compilation case:
92 AC_CHECK_HEADER(stdio.h,:,
93 [AC_MSG_ERROR([Can't find stdio.h.
94 You must have a usable C system for the target already installed, at least
95 including headers and, preferably, the library, before you can configure
96 the Objective C runtime system. If necessary, install gcc now with
97 \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])])
101 AC_CHECK_HEADERS(sched.h)
103 # Determine CFLAGS for gthread.
105 AC_CACHE_CHECK([for gthread cflags],objc_cv_gthread_flags,
106 [if test -f "$r"/gcc/Makefile
108 objc_cv_gthread_flags=`grep \^GTHREAD_FLAGS "$r"/gcc/Makefile | awk -F= '{ print $2 }'`
110 AC_MSG_ERROR([not found])
112 GTHREAD_FLAGS=$objc_cv_gthread_flags
113 AC_SUBST(GTHREAD_FLAGS)
115 AC_ARG_ENABLE(objc-gc,
116 [ --enable-objc-gc enable the use of Boehm's garbage collector with
117 the GNU Objective-C runtime.],
118 if [[[ x$enable_objc_gc = xno ]]]; then
121 OBJC_BOEHM_GC=libobjc_gc.la
124 AC_SUBST(OBJC_BOEHM_GC)
127 # We need multilib support, but only if configuring for the target.
129 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
130 if test -n "$CONFIG_FILES"; then
131 if test -n "${with_target_subdir}"; then
132 # FIXME: We shouldn't need to set ac_file
134 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
135 . ${toplevel_srcdir}/config-ml.in
141 with_target_subdir=${with_target_subdir}
142 with_multisubdir=${with_multisubdir}
143 ac_configure_args="--enable-multilib ${ac_configure_args}"
144 toplevel_srcdir=${toplevel_srcdir}
145 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
150 dnl comment-start: "dnl "
152 dnl comment-start-skip: "\\bdnl\\b\\s *"