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bce1b489 | 1 | # Process this file with autoconf to produce a configure script. |
9c01f395 | 2 | # Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2003, 2004 |
3343fdd2 | 3 | # Free Software Foundation, Inc. |
9c01f395 | 4 | # Originally contributed by Dave Love (d.love@dl.ac.uk). |
bce1b489 | 5 | # |
9c01f395 | 6 | #This file is part of GCC. |
bce1b489 | 7 | # |
9c01f395 | 8 | #GCC is free software; you can redistribute it and/or modify |
bce1b489 BE |
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) | |
11 | #any later version. | |
12 | # | |
9c01f395 | 13 | #GCC is distributed in the hope that it will be useful, |
bce1b489 BE |
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. | |
17 | # | |
18 | #You should have received a copy of the GNU General Public License | |
9c01f395 | 19 | #along with GCC; see the file COPYING. If not, write to |
bce1b489 BE |
20 | #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
21 | #02111-1307, USA. | |
22 | ||
88386050 | 23 | AC_PREREQ(2.59) |
252dde64 NN |
24 | AC_INIT |
25 | AC_CONFIG_SRCDIR([objc/objc.h]) | |
bce1b489 | 26 | |
252dde64 | 27 | # We need the following definitions because AC_PROG_LIBTOOL relies on them |
1fcfac98 | 28 | PACKAGE=libobjc |
252dde64 | 29 | # Version is pulled out to make it a bit easier to change using sed. |
1fcfac98 NN |
30 | VERSION=1:0:0 |
31 | AC_SUBST(VERSION) | |
32 | ||
6706f116 AO |
33 | # This works around the fact that libtool configuration may change LD |
34 | # for this particular configuration, but some shells, instead of | |
35 | # keeping the changes in LD private, export them just because LD is | |
36 | # exported. | |
37 | ORIGINAL_LD_FOR_MULTILIBS=$LD | |
38 | ||
252dde64 NN |
39 | # ------- |
40 | # Options | |
41 | # ------- | |
42 | ||
43 | # Default to --enable-multilib | |
9c01f395 NN |
44 | AC_ARG_ENABLE(multilib, |
45 | [ --enable-multilib build hella library versions (default)], | |
46 | [case "${enableval}" in | |
47 | yes) multilib=yes ;; | |
48 | no) multilib=no ;; | |
49 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; | |
252dde64 NN |
50 | esac], |
51 | [multilib=yes]) | |
52 | ||
53 | # We use these options to decide which functions to include. | |
54 | AC_ARG_WITH(target-subdir, | |
55 | [ --with-target-subdir=SUBDIR | |
56 | configuring in a subdirectory]) | |
57 | AC_ARG_WITH(cross-host, | |
58 | [ --with-cross-host=HOST configuring with a cross compiler]) | |
59 | ||
60 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
61 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
62 | [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], | |
63 | [case "$enableval" in | |
64 | yes) version_specific_libs=yes ;; | |
65 | no) version_specific_libs=no ;; | |
66 | *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; | |
67 | esac], | |
68 | [version_specific_libs=no]) | |
69 | AC_MSG_RESULT($version_specific_libs) | |
70 | ||
71 | AC_ARG_ENABLE(objc-gc, | |
72 | [ --enable-objc-gc enable the use of Boehm's garbage collector with | |
73 | the GNU Objective-C runtime.], | |
74 | [case $enable_objc_gc in | |
75 | no) OBJC_BOEHM_GC='' ;; | |
76 | *) OBJC_BOEHM_GC=libobjc_gc.la ;; | |
77 | esac], | |
78 | [OBJC_BOEHM_GC='']) | |
79 | AC_SUBST(OBJC_BOEHM_GC) | |
80 | ||
81 | # ----------- | |
82 | # Directories | |
83 | # ----------- | |
9c01f395 NN |
84 | |
85 | # When building with srcdir == objdir, links to the source files will | |
86 | # be created in directories within the target_subdir. We have to | |
87 | # adjust toplevel_srcdir accordingly, so that configure finds | |
88 | # install-sh and other auxiliary files that live in the top-level | |
89 | # source directory. | |
90 | if test "${srcdir}" = "."; then | |
91 | if test -z "${with_target_subdir}"; then | |
92 | toprel=".." | |
93 | else | |
94 | if test "${with_target_subdir}" != "."; then | |
95 | toprel="${with_multisrctop}../.." | |
96 | else | |
97 | toprel="${with_multisrctop}.." | |
98 | fi | |
99 | fi | |
100 | else | |
101 | toprel=".." | |
102 | fi | |
103 | AC_CONFIG_AUX_DIR(${srcdir}/$toprel) | |
88386050 | 104 | toplevel_srcdir=\${srcdir}/$toprel |
9c01f395 | 105 | AC_SUBST(toplevel_srcdir) |
aebb8c22 | 106 | |
b150efee | 107 | AC_CANONICAL_SYSTEM |
9c01f395 NN |
108 | _GCC_TOPLEV_NONCANONICAL_TARGET |
109 | AC_SUBST(target_noncanonical) | |
110 | ||
af0c82b3 | 111 | # Export source directory. |
9c01f395 NN |
112 | # These need to be absolute paths, yet at the same time need to |
113 | # canonicalize only relative paths, because then amd will not unmount | |
114 | # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. | |
9c01f395 | 115 | case $srcdir in |
252dde64 NN |
116 | [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;; |
117 | *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; | |
9c01f395 | 118 | esac |
9c01f395 NN |
119 | AC_SUBST(glibcpp_srcdir) |
120 | ||
9c01f395 | 121 | # Process the option "--enable-version-specific-runtime-libs" |
9c01f395 NN |
122 | gcc_version_trigger=${srcdir}/../gcc/version.c |
123 | gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/'` | |
124 | gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` | |
125 | AC_SUBST(gcc_version) | |
9c01f395 | 126 | |
608e1e0c | 127 | # Calculate toolexeclibdir |
9c01f395 NN |
128 | case ${version_specific_libs} in |
129 | yes) | |
130 | # Need the gcc compiler version to know where to install libraries | |
131 | # and header files if --enable-version-specific-runtime-libs option | |
132 | # is selected. | |
608e1e0c | 133 | toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)' |
9c01f395 NN |
134 | ;; |
135 | no) | |
136 | if test -n "$with_cross_host" && | |
137 | test x"$with_cross_host" != x"no"; then | |
9c01f395 | 138 | # Install a library built with a cross compiler in tooldir, not libdir. |
608e1e0c NN |
139 | toolexeclibdir='$(toolexecdir)/lib' |
140 | else | |
141 | toolexeclibdir='$(libdir)' | |
9c01f395 NN |
142 | fi |
143 | multi_os_directory=`$CC -print-multi-os-directory` | |
144 | case $multi_os_directory in | |
145 | .) ;; # Avoid trailing /. | |
608e1e0c | 146 | *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; |
9c01f395 NN |
147 | esac |
148 | ;; | |
149 | esac | |
608e1e0c | 150 | AC_SUBST(toolexeclibdir) |
9c01f395 | 151 | |
252dde64 NN |
152 | # -------- |
153 | # Programs | |
154 | # -------- | |
155 | ||
156 | GCC_NO_EXECUTABLES | |
157 | AC_PROG_CC | |
158 | ||
159 | AC_CHECK_TOOL(AS, as) | |
160 | AC_CHECK_TOOL(AR, ar) | |
161 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
162 | AC_PROG_INSTALL | |
7c6b0e92 | 163 | |
b150efee FS |
164 | # Disable shared libs by default |
165 | AC_DISABLE_SHARED | |
9c01f395 NN |
166 | # Enable Win32 DLL on MS Windows - FIXME |
167 | AC_LIBTOOL_WIN32_DLL | |
7c6b0e92 | 168 | |
b150efee | 169 | AC_PROG_LIBTOOL |
bce1b489 | 170 | |
b150efee | 171 | AC_PROG_MAKE_SET |
bce1b489 | 172 | |
252dde64 NN |
173 | # ------- |
174 | # Headers | |
175 | # ------- | |
176 | ||
bce1b489 BE |
177 | # Sanity check for the cross-compilation case: |
178 | AC_CHECK_HEADER(stdio.h,:, | |
179 | [AC_MSG_ERROR([Can't find stdio.h. | |
180 | You must have a usable C system for the target already installed, at least | |
181 | including headers and, preferably, the library, before you can configure | |
182 | the Objective C runtime system. If necessary, install gcc now with | |
183 | \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])]) | |
184 | ||
185 | AC_HEADER_STDC | |
186 | ||
d972a4c2 OP |
187 | AC_CHECK_HEADERS(sched.h) |
188 | ||
252dde64 NN |
189 | # ----------- |
190 | # Miscellanea | |
191 | # ----------- | |
192 | ||
15794a95 | 193 | # Determine CFLAGS for gthread. |
b43e7294 NN |
194 | # FIXME: the current implementation is dependent on the 'r' variable |
195 | # passed down from the top level | |
15794a95 | 196 | AC_CACHE_CHECK([for gthread cflags],objc_cv_gthread_flags, |
79014e6f | 197 | [if test -f "$r"/gcc/Makefile |
bce1b489 | 198 | then |
15794a95 | 199 | objc_cv_gthread_flags=`grep \^GTHREAD_FLAGS "$r"/gcc/Makefile | awk -F= '{ print $2 }'` |
bce1b489 BE |
200 | else |
201 | AC_MSG_ERROR([not found]) | |
202 | fi]) | |
15794a95 L |
203 | GTHREAD_FLAGS=$objc_cv_gthread_flags |
204 | AC_SUBST(GTHREAD_FLAGS) | |
bce1b489 | 205 | |
252dde64 NN |
206 | # ------ |
207 | # Output | |
208 | # ------ | |
bce1b489 | 209 | |
252dde64 NN |
210 | AC_CONFIG_FILES([Makefile]) |
211 | ||
212 | AC_CONFIG_COMMANDS([default], | |
608e1e0c | 213 | [[if test -n "$CONFIG_FILES"; then |
bce1b489 BE |
214 | if test -n "${with_target_subdir}"; then |
215 | # FIXME: We shouldn't need to set ac_file | |
216 | ac_file=Makefile | |
6706f116 | 217 | LD="${ORIGINAL_LD_FOR_MULTILIBS}" |
b150efee | 218 | . ${toplevel_srcdir}/config-ml.in |
bce1b489 | 219 | fi |
252dde64 NN |
220 | fi]], |
221 | [[srcdir=${srcdir} | |
bce1b489 BE |
222 | host=${host} |
223 | target=${target} | |
224 | with_target_subdir=${with_target_subdir} | |
225 | with_multisubdir=${with_multisubdir} | |
226 | ac_configure_args="--enable-multilib ${ac_configure_args}" | |
b150efee | 227 | toplevel_srcdir=${toplevel_srcdir} |
bce1b489 | 228 | CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} |
3343fdd2 | 229 | ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" |
252dde64 NN |
230 | ]]) |
231 | ||
232 | AC_OUTPUT |