[14547] | 1 | # Process this file with autoconf to produce a configure script. |
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| 2 | # Copyright (C) 1995, 1997, 1998, 1999 Free Software Foundation, Inc. |
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| 3 | # Contributed by Dave Love (d.love@dl.ac.uk). |
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| 4 | # |
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| 5 | #This file is part of GNU Objective C. |
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| 6 | # |
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| 7 | #GNU Objective C is free software; you can redistribute it and/or modify |
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| 8 | #it under the terms of the GNU General Public License as published by |
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| 9 | #the Free Software Foundation; either version 2, or (at your option) |
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| 10 | #any later version. |
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| 11 | # |
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| 12 | #GNU Objective C is distributed in the hope that it will be useful, |
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| 13 | #but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | #GNU General Public License for more details. |
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| 16 | # |
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| 17 | #You should have received a copy of the GNU General Public License |
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| 18 | #along with GNU Objective C; see the file COPYING. If not, write to |
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| 19 | #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
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| 20 | #02111-1307, USA. |
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| 21 | |
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| 22 | AC_PREREQ(2.13) |
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| 23 | AC_INIT(objc/objc.h) |
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[16959] | 24 | AC_CONFIG_HEADER(config.h) |
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[14547] | 25 | |
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| 26 | if test "${srcdir}" = "." ; then |
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| 27 | if test "${with_target_subdir}" != "." ; then |
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| 28 | topsrcdir=${with_multisrctop}../.. |
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| 29 | else |
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| 30 | topsrcdir=${with_multisrctop}.. |
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| 31 | fi |
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| 32 | else |
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| 33 | topsrcdir=${srcdir}/.. |
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| 34 | fi |
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| 35 | dnl This is needed for a multilibbed build in the source tree so |
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| 36 | dnl that install-sh and config.sub get found. |
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| 37 | AC_CONFIG_AUX_DIR($topsrcdir) |
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| 38 | |
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| 39 | # If the language specific compiler does not exist, but the "gcc" directory |
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| 40 | # does, we do not build anything. Note, $r is set by the top-level Makefile. |
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| 41 | # Note that when we look for the compiler, we search both with and without |
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| 42 | # extension to handle cross and canadian cross builds. |
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| 43 | compiler_name=cc1obj |
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| 44 | rm -f skip-this-dir |
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| 45 | AC_MSG_CHECKING(if compiler $compiler_name has been built) |
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| 46 | AC_CACHE_VAL(objc_cv_compiler_exists, |
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| 47 | [objc_cv_compiler_exists=yes |
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| 48 | if test -n "$r"; then |
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| 49 | if test -d "$r"/gcc; then |
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| 50 | if test -f "$r"/gcc/$compiler_name \ |
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| 51 | || test -f "$r"/gcc/$compiler_name.exe; then |
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| 52 | true |
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| 53 | else |
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| 54 | objc_cv_compiler_exists=no |
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| 55 | echo "rm -f config.cache config.log multilib.out" > skip-this-dir |
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| 56 | fi |
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| 57 | fi |
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| 58 | fi |
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| 59 | ]) |
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| 60 | AC_MSG_RESULT($objc_cv_compiler_exists) |
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| 61 | if test x$objc_cv_compiler_exists = xno |
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| 62 | then |
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| 63 | rm -f Makefile conftest* confdefs* core |
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| 64 | exit 0 |
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| 65 | fi |
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| 66 | |
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| 67 | dnl Checks for programs. |
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[16959] | 68 | |
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| 69 | dnl FIXME AC_PROG_CC wants CC to be able to link things, but it may |
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| 70 | dnl not be able to. |
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| 71 | define([AC_PROG_CC_WORKS],[]) |
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| 72 | |
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[14547] | 73 | # For ObjC we'll set CC to point at the built gcc, but this will get it into |
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| 74 | # the makefiles |
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| 75 | AC_PROG_CC |
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| 76 | |
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| 77 | test "$AR" || AR=ar |
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| 78 | AC_SUBST(AR) |
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| 79 | if test "$RANLIB"; then : |
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| 80 | AC_SUBST(RANLIB) |
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| 81 | else |
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| 82 | AC_PROG_RANLIB |
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| 83 | fi |
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| 84 | AC_PROG_INSTALL |
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| 85 | |
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[16959] | 86 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, |
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| 87 | # at least currently, we never actually build a program, so we never |
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| 88 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally |
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| 89 | # fails, because we are probably configuring with a cross compiler |
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| 90 | # which cant create executables. So we include AC_EXEEXT to keep |
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| 91 | # automake happy, but we dont execute it, since we dont care about |
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| 92 | # the result. |
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| 93 | if false; then |
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| 94 | AC_EXEEXT |
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| 95 | fi |
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| 96 | |
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[14547] | 97 | dnl Checks for libraries. |
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| 98 | |
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| 99 | dnl Checks for header files. |
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| 100 | # Sanity check for the cross-compilation case: |
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| 101 | AC_CHECK_HEADER(stdio.h,:, |
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| 102 | [AC_MSG_ERROR([Can't find stdio.h. |
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| 103 | You must have a usable C system for the target already installed, at least |
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| 104 | including headers and, preferably, the library, before you can configure |
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| 105 | the Objective C runtime system. If necessary, install gcc now with |
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| 106 | \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])]) |
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| 107 | |
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| 108 | AC_HEADER_STDC |
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| 109 | |
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[16959] | 110 | AC_CHECK_HEADERS(sched.h) |
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[14547] | 111 | |
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[16959] | 112 | # Determine CFLAGS for gthread. |
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| 113 | |
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| 114 | AC_CACHE_CHECK([for gthread cflags],objc_cv_gthread_flags, |
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[14547] | 115 | [if test -f "$r"/gcc/Makefile |
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| 116 | then |
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[16959] | 117 | objc_cv_gthread_flags=`grep \^GTHREAD_FLAGS "$r"/gcc/Makefile | awk -F= '{ print $2 }'` |
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[14547] | 118 | else |
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| 119 | AC_MSG_ERROR([not found]) |
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| 120 | fi]) |
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[16959] | 121 | GTHREAD_FLAGS=$objc_cv_gthread_flags |
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| 122 | AC_SUBST(GTHREAD_FLAGS) |
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[14547] | 123 | |
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[16959] | 124 | # Disable shared libs by default |
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| 125 | AC_DISABLE_SHARED |
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| 126 | # Enable Win32 DLL on MS Windows - FIXME |
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| 127 | AC_LIBTOOL_WIN32_DLL |
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| 128 | # Use libtool |
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| 129 | AC_PROG_LIBTOOL |
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| 130 | |
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[14547] | 131 | AC_ARG_ENABLE(objc-gc, |
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| 132 | [ --enable-objc-gc enable the use of Boehm's garbage collector with |
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| 133 | the GNU Objective-C runtime.], |
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| 134 | if [[[ x$enable_objc_gc = xno ]]]; then |
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| 135 | OBJC_BOEHM_GC='' |
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| 136 | else |
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[16959] | 137 | OBJC_BOEHM_GC=libobjc_gc.la |
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[14547] | 138 | fi, |
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| 139 | OBJC_BOEHM_GC='') |
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| 140 | AC_SUBST(OBJC_BOEHM_GC) |
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| 141 | |
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| 142 | |
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| 143 | # We need multilib support, but only if configuring for the target. |
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| 144 | AC_OUTPUT(Makefile, |
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| 145 | [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h |
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| 146 | if test -n "$CONFIG_FILES"; then |
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| 147 | if test -n "${with_target_subdir}"; then |
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| 148 | # FIXME: We shouldn't need to set ac_file |
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| 149 | ac_file=Makefile |
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| 150 | . ${topsrcdir}/config-ml.in |
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| 151 | fi |
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| 152 | fi], |
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| 153 | srcdir=${srcdir} |
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| 154 | host=${host} |
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| 155 | target=${target} |
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| 156 | with_target_subdir=${with_target_subdir} |
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| 157 | with_multisubdir=${with_multisubdir} |
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| 158 | ac_configure_args="--enable-multilib ${ac_configure_args}" |
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| 159 | CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} |
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| 160 | topsrcdir=${topsrcdir} |
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| 161 | ) |
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| 162 | |
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| 163 | dnl Local Variables: |
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| 164 | dnl comment-start: "dnl " |
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| 165 | dnl comment-end: "" |
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| 166 | dnl comment-start-skip: "\\bdnl\\b\\s *" |
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| 167 | dnl End: |
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