1 # Process this file with autoconf to produce a configure script.
2 # Copyright (C) 1995, 1997, 1998, 1999, 2002, 2003
3 # Free Software Foundation, Inc.
4 # Contributed by Dave Love (d.love@dl.ac.uk).
6 #This file is part of GNU Objective C.
8 #GNU Objective C is free software; you can redistribute it and/or modify
9 #it under the terms of the GNU General Public License as published by
10 #the Free Software Foundation; either version 2, or (at your option)
13 #GNU Objective C is distributed in the hope that it will be useful,
14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 #GNU General Public License for more details.
18 #You should have received a copy of the GNU General Public License
19 #along with GNU Objective C; see the file COPYING. If not, write to
20 #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
25 AC_CONFIG_HEADER(config.h)
27 # This works around the fact that libtool configuration may change LD
28 # for this particular configuration, but some shells, instead of
29 # keeping the changes in LD private, export them just because LD is
31 ORIGINAL_LD_FOR_MULTILIBS=$LD
33 GLIBCPP_TOPREL_CONFIGURE
36 target_alias=${target_alias-$target}
37 AC_SUBST(target_alias)
40 GLIBCPP_EXPORT_INSTALL_INFO
42 # If the language specific compiler does not exist, but the "gcc" directory
43 # does, we do not build anything. Note, $r is set by the top-level Makefile.
44 # Note that when we look for the compiler, we search both with and without
45 # extension to handle cross and canadian cross builds.
48 AC_MSG_CHECKING(if compiler $compiler_name has been built)
49 AC_CACHE_VAL(objc_cv_compiler_exists,
50 [objc_cv_compiler_exists=yes
52 if test -d "$r"/gcc; then
53 if test -f "$r"/gcc/$compiler_name \
54 || test -f "$r"/gcc/$compiler_name.exe; then
57 objc_cv_compiler_exists=no
58 echo "rm -f config.cache config.log multilib.out" > skip-this-dir
63 AC_MSG_RESULT($objc_cv_compiler_exists)
64 if test x$objc_cv_compiler_exists = xno
66 rm -f Makefile conftest* confdefs* core
70 dnl Checks for programs.
72 # Disable shared libs by default
74 # Enable Win32 DLL on MS Windows - FIXME
79 dnl These should be inherited in the recursive make, but ensure they are
83 if test "$RANLIB"; then :
91 dnl Checks for header files.
92 # Sanity check for the cross-compilation case:
93 AC_CHECK_HEADER(stdio.h,:,
94 [AC_MSG_ERROR([Can't find stdio.h.
95 You must have a usable C system for the target already installed, at least
96 including headers and, preferably, the library, before you can configure
97 the Objective C runtime system. If necessary, install gcc now with
98 \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])])
102 AC_CHECK_HEADERS(sched.h)
104 # Determine CFLAGS for gthread.
106 AC_CACHE_CHECK([for gthread cflags],objc_cv_gthread_flags,
107 [if test -f "$r"/gcc/Makefile
109 objc_cv_gthread_flags=`grep \^GTHREAD_FLAGS "$r"/gcc/Makefile | awk -F= '{ print $2 }'`
111 AC_MSG_ERROR([not found])
113 GTHREAD_FLAGS=$objc_cv_gthread_flags
114 AC_SUBST(GTHREAD_FLAGS)
116 AC_ARG_ENABLE(objc-gc,
117 [ --enable-objc-gc enable the use of Boehm's garbage collector with
118 the GNU Objective-C runtime.],
119 if [[[ x$enable_objc_gc = xno ]]]; then
122 OBJC_BOEHM_GC=libobjc_gc.la
125 AC_SUBST(OBJC_BOEHM_GC)
128 # We need multilib support, but only if configuring for the target.
130 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
131 if test -n "$CONFIG_FILES"; then
132 if test -n "${with_target_subdir}"; then
133 # FIXME: We shouldn't need to set ac_file
135 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
136 . ${toplevel_srcdir}/config-ml.in
142 with_target_subdir=${with_target_subdir}
143 with_multisubdir=${with_multisubdir}
144 ac_configure_args="--enable-multilib ${ac_configure_args}"
145 toplevel_srcdir=${toplevel_srcdir}
146 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
147 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
152 dnl comment-start: "dnl "
154 dnl comment-start-skip: "\\bdnl\\b\\s *"