]>
Commit | Line | Data |
---|---|---|
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) |
684c64bf | 24 | AC_INIT(package-unused, version-unused,, libobjc) |
252dde64 | 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 |
1506eac1 | 108 | ACX_NONCANONICAL_TARGET |
9c01f395 | 109 | |
af0c82b3 | 110 | # Export source directory. |
9c01f395 NN |
111 | # These need to be absolute paths, yet at the same time need to |
112 | # canonicalize only relative paths, because then amd will not unmount | |
113 | # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. | |
9c01f395 | 114 | case $srcdir in |
252dde64 NN |
115 | [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;; |
116 | *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; | |
9c01f395 | 117 | esac |
9c01f395 NN |
118 | AC_SUBST(glibcpp_srcdir) |
119 | ||
afabd8e6 | 120 | TL_AC_GCC_VERSION([$srcdir/..]) |
9c01f395 | 121 | |
608e1e0c | 122 | # Calculate toolexeclibdir |
a42a57cb | 123 | # Also toolexecdir, though it's only used in toolexeclibdir |
9c01f395 NN |
124 | case ${version_specific_libs} in |
125 | yes) | |
126 | # Need the gcc compiler version to know where to install libraries | |
127 | # and header files if --enable-version-specific-runtime-libs option | |
128 | # is selected. | |
a42a57cb | 129 | toolexecdir='$(libdir)/gcc/$(target_noncanonical)' |
608e1e0c | 130 | toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)' |
9c01f395 NN |
131 | ;; |
132 | no) | |
133 | if test -n "$with_cross_host" && | |
134 | test x"$with_cross_host" != x"no"; then | |
9c01f395 | 135 | # Install a library built with a cross compiler in tooldir, not libdir. |
a42a57cb | 136 | toolexecdir='$(exec_prefix)/$(target_noncanonical)' |
608e1e0c NN |
137 | toolexeclibdir='$(toolexecdir)/lib' |
138 | else | |
a42a57cb | 139 | toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)' |
608e1e0c | 140 | toolexeclibdir='$(libdir)' |
9c01f395 NN |
141 | fi |
142 | multi_os_directory=`$CC -print-multi-os-directory` | |
143 | case $multi_os_directory in | |
144 | .) ;; # Avoid trailing /. | |
608e1e0c | 145 | *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; |
9c01f395 NN |
146 | esac |
147 | ;; | |
148 | esac | |
a42a57cb | 149 | AC_SUBST(toolexecdir) |
608e1e0c | 150 | AC_SUBST(toolexeclibdir) |
9c01f395 | 151 | |
ff65de76 AP |
152 | # Figure out if we want to name the include directory and the |
153 | # library name changes differently. | |
7d34a5a9 | 154 | includedirname=include |
ff65de76 AP |
155 | libext= |
156 | case "${host}" in | |
157 | *-darwin*) | |
158 | # Darwin is the only target so far that needs a different include directory. | |
7d34a5a9 | 159 | includedirname=include-gnu-runtime |
ff65de76 AP |
160 | libext=-gnu |
161 | ;; | |
162 | esac | |
7d34a5a9 | 163 | AC_SUBST(includedirname) |
ff65de76 AP |
164 | AC_SUBST(libext) |
165 | ||
049bc404 AP |
166 | AC_CONFIG_HEADERS(config.h) |
167 | ||
252dde64 NN |
168 | # -------- |
169 | # Programs | |
170 | # -------- | |
171 | ||
172 | GCC_NO_EXECUTABLES | |
db7f3c69 NN |
173 | |
174 | # We must force CC to /not/ be a precious variable; otherwise | |
175 | # the wrong, non-multilib-adjusted value will be used in multilibs. | |
176 | # As a side effect, we have to subst CFLAGS ourselves. | |
177 | m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) | |
178 | m4_define([_AC_ARG_VAR_PRECIOUS],[]) | |
252dde64 | 179 | AC_PROG_CC |
db7f3c69 NN |
180 | m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) |
181 | ||
182 | AC_SUBST(CFLAGS) | |
252dde64 NN |
183 | |
184 | AC_CHECK_TOOL(AS, as) | |
185 | AC_CHECK_TOOL(AR, ar) | |
186 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
187 | AC_PROG_INSTALL | |
7c6b0e92 | 188 | |
dd365157 MS |
189 | AM_MAINTAINER_MODE |
190 | ||
9c01f395 NN |
191 | # Enable Win32 DLL on MS Windows - FIXME |
192 | AC_LIBTOOL_WIN32_DLL | |
7c6b0e92 | 193 | |
b150efee | 194 | AC_PROG_LIBTOOL |
bce1b489 | 195 | |
dd365157 MS |
196 | AM_PROG_CC_C_O |
197 | ||
b150efee | 198 | AC_PROG_MAKE_SET |
bce1b489 | 199 | |
252dde64 NN |
200 | # ------- |
201 | # Headers | |
202 | # ------- | |
203 | ||
bce1b489 BE |
204 | # Sanity check for the cross-compilation case: |
205 | AC_CHECK_HEADER(stdio.h,:, | |
206 | [AC_MSG_ERROR([Can't find stdio.h. | |
207 | You must have a usable C system for the target already installed, at least | |
208 | including headers and, preferably, the library, before you can configure | |
209 | the Objective C runtime system. If necessary, install gcc now with | |
210 | \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])]) | |
211 | ||
212 | AC_HEADER_STDC | |
213 | ||
d972a4c2 OP |
214 | AC_CHECK_HEADERS(sched.h) |
215 | ||
252dde64 NN |
216 | # ----------- |
217 | # Miscellanea | |
218 | # ----------- | |
219 | ||
15794a95 | 220 | # Determine CFLAGS for gthread. |
b43e7294 NN |
221 | # FIXME: the current implementation is dependent on the 'r' variable |
222 | # passed down from the top level | |
15794a95 | 223 | AC_CACHE_CHECK([for gthread cflags],objc_cv_gthread_flags, |
79014e6f | 224 | [if test -f "$r"/gcc/Makefile |
bce1b489 | 225 | then |
15794a95 | 226 | objc_cv_gthread_flags=`grep \^GTHREAD_FLAGS "$r"/gcc/Makefile | awk -F= '{ print $2 }'` |
bce1b489 BE |
227 | else |
228 | AC_MSG_ERROR([not found]) | |
229 | fi]) | |
15794a95 L |
230 | GTHREAD_FLAGS=$objc_cv_gthread_flags |
231 | AC_SUBST(GTHREAD_FLAGS) | |
bce1b489 | 232 | |
049bc404 AP |
233 | AC_MSG_CHECKING([for exception model to use]) |
234 | AC_LANG_PUSH(C) | |
235 | AC_ARG_ENABLE(sjlj-exceptions, | |
236 | AS_HELP_STRING([--enable-sjlj-exceptions], | |
237 | [force use of builtin_setjmp for exceptions]), | |
238 | [:], | |
239 | [dnl Botheration. Now we've got to detect the exception model. | |
240 | dnl Link tests against libgcc.a are problematic since -- at least | |
241 | dnl as of this writing -- we've not been given proper -L bits for | |
242 | dnl single-tree newlib and libgloss. | |
243 | dnl | |
244 | dnl This is what AC_TRY_COMPILE would do if it didn't delete the | |
245 | dnl conftest files before we got a change to grep them first. | |
246 | cat > conftest.$ac_ext << EOF | |
247 | [#]line __oline__ "configure" | |
248 | @interface Frob | |
249 | @end | |
250 | @implementation Frob | |
251 | @end | |
252 | int proc(); | |
253 | int foo() | |
254 | { | |
255 | @try { | |
256 | return proc(); | |
257 | } | |
258 | @catch (Frob* ex) { | |
259 | return 0; | |
260 | } | |
261 | } | |
262 | EOF | |
263 | old_CFLAGS="$CFLAGS" | |
264 | dnl work around that we don't have Objective-C support in autoconf | |
265 | CFLAGS="-x objective-c -fgnu-runtime -fobjc-exceptions -S" | |
266 | if AC_TRY_EVAL(ac_compile); then | |
267 | if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then | |
268 | enable_sjlj_exceptions=yes | |
269 | elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then | |
270 | enable_sjlj_exceptions=no | |
271 | fi | |
272 | fi | |
273 | CFLAGS="$old_CFLAGS" | |
274 | rm -f conftest*]) | |
275 | if test x$enable_sjlj_exceptions = xyes; then | |
276 | AC_DEFINE(SJLJ_EXCEPTIONS, 1, | |
277 | [Define if the compiler is configured for setjmp/longjmp exceptions.]) | |
278 | ac_exception_model_name=sjlj | |
279 | elif test x$enable_sjlj_exceptions = xno; then | |
280 | ac_exception_model_name="call frame" | |
281 | else | |
282 | AC_MSG_ERROR([unable to detect exception model]) | |
283 | fi | |
284 | AC_LANG_POP(C) | |
285 | AC_MSG_RESULT($ac_exception_model_name) | |
286 | ||
252dde64 NN |
287 | # ------ |
288 | # Output | |
289 | # ------ | |
bce1b489 | 290 | |
252dde64 NN |
291 | AC_CONFIG_FILES([Makefile]) |
292 | ||
293 | AC_CONFIG_COMMANDS([default], | |
608e1e0c | 294 | [[if test -n "$CONFIG_FILES"; then |
bce1b489 BE |
295 | if test -n "${with_target_subdir}"; then |
296 | # FIXME: We shouldn't need to set ac_file | |
297 | ac_file=Makefile | |
6706f116 | 298 | LD="${ORIGINAL_LD_FOR_MULTILIBS}" |
b150efee | 299 | . ${toplevel_srcdir}/config-ml.in |
bce1b489 | 300 | fi |
252dde64 NN |
301 | fi]], |
302 | [[srcdir=${srcdir} | |
bce1b489 BE |
303 | host=${host} |
304 | target=${target} | |
305 | with_target_subdir=${with_target_subdir} | |
306 | with_multisubdir=${with_multisubdir} | |
307 | ac_configure_args="--enable-multilib ${ac_configure_args}" | |
b150efee | 308 | toplevel_srcdir=${toplevel_srcdir} |
bce1b489 | 309 | CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} |
3343fdd2 | 310 | ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" |
252dde64 NN |
311 | ]]) |
312 | ||
313 | AC_OUTPUT |