1 # Process this file with autoconf to produce a configure script.
2 # Copyright (C) 1995, 1997, 1998, 1999 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)
27 target_alias=${target_alias-$target}
28 AC_SUBST(target_alias)
31 GLIBCPP_EXPORT_INSTALL_INFO
33 # If the language specific compiler does not exist, but the "gcc" directory
34 # does, we do not build anything. Note, $r is set by the top-level Makefile.
35 # Note that when we look for the compiler, we search both with and without
36 # extension to handle cross and canadian cross builds.
39 AC_MSG_CHECKING(if compiler $compiler_name has been built)
40 AC_CACHE_VAL(objc_cv_compiler_exists,
41 [objc_cv_compiler_exists=yes
43 if test -d "$r"/gcc; then
44 if test -f "$r"/gcc/$compiler_name \
45 || test -f "$r"/gcc/$compiler_name.exe; then
48 objc_cv_compiler_exists=no
49 echo "rm -f config.cache config.log multilib.out" > skip-this-dir
54 AC_MSG_RESULT($objc_cv_compiler_exists)
55 if test x$objc_cv_compiler_exists = xno
57 rm -f Makefile conftest* confdefs* core
61 dnl Checks for programs.
63 # Disable shared libs by default
65 # Enable Win32 DLL on MS Windows - FIXME
70 dnl These should be inherited in the recursive make, but ensure they are
74 if test "$RANLIB"; then :
82 dnl Checks for header files.
83 # Sanity check for the cross-compilation case:
84 AC_CHECK_HEADER(stdio.h,:,
85 [AC_MSG_ERROR([Can't find stdio.h.
86 You must have a usable C system for the target already installed, at least
87 including headers and, preferably, the library, before you can configure
88 the Objective C runtime system. If necessary, install gcc now with
89 \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])])
93 AC_CHECK_HEADERS(sched.h)
95 # Determine CFLAGS for gthread.
97 AC_CACHE_CHECK([for gthread cflags],objc_cv_gthread_flags,
98 [if test -f "$r"/gcc/Makefile
100 objc_cv_gthread_flags=`grep \^GTHREAD_FLAGS "$r"/gcc/Makefile | awk -F= '{ print $2 }'`
102 AC_MSG_ERROR([not found])
104 GTHREAD_FLAGS=$objc_cv_gthread_flags
105 AC_SUBST(GTHREAD_FLAGS)
107 AC_ARG_ENABLE(objc-gc,
108 [ --enable-objc-gc enable the use of Boehm's garbage collector with
109 the GNU Objective-C runtime.],
110 if [[[ x$enable_objc_gc = xno ]]]; then
113 OBJC_BOEHM_GC=libobjc_gc.la
116 AC_SUBST(OBJC_BOEHM_GC)
119 # We need multilib support, but only if configuring for the target.
121 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
122 if test -n "$CONFIG_FILES"; then
123 if test -n "${with_target_subdir}"; then
124 # FIXME: We shouldn't need to set ac_file
126 . ${toplevel_srcdir}/config-ml.in
132 with_target_subdir=${with_target_subdir}
133 with_multisubdir=${with_multisubdir}
134 ac_configure_args="--enable-multilib ${ac_configure_args}"
135 toplevel_srcdir=${toplevel_srcdir}
136 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
141 dnl comment-start: "dnl "
143 dnl comment-start-skip: "\\bdnl\\b\\s *"