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bce1b489 | 1 | # Process this file with autoconf to produce a configure script. |
83ffe9cd | 2 | # Copyright (C) 1994-2023 Free Software Foundation, Inc. |
9c01f395 | 3 | # Originally contributed by Dave Love (d.love@dl.ac.uk). |
bce1b489 | 4 | # |
9c01f395 | 5 | #This file is part of GCC. |
bce1b489 | 6 | # |
9c01f395 | 7 | #GCC is free software; you can redistribute it and/or modify |
bce1b489 | 8 | #it under the terms of the GNU General Public License as published by |
748086b7 | 9 | #the Free Software Foundation; either version 3, or (at your option) |
bce1b489 BE |
10 | #any later version. |
11 | # | |
9c01f395 | 12 | #GCC is distributed in the hope that it will be useful, |
bce1b489 BE |
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. | |
16 | # | |
17 | #You should have received a copy of the GNU General Public License | |
748086b7 JJ |
18 | #along with GCC; see the file COPYING3. If not see |
19 | #<http://www.gnu.org/licenses/>. | |
bce1b489 | 20 | |
684c64bf | 21 | AC_INIT(package-unused, version-unused,, libobjc) |
252dde64 | 22 | AC_CONFIG_SRCDIR([objc/objc.h]) |
25861cf3 | 23 | AC_CONFIG_MACRO_DIRS([../config] [..]) |
215c351a | 24 | GCC_TOPLEV_SUBDIRS |
bce1b489 | 25 | |
252dde64 | 26 | # We need the following definitions because AC_PROG_LIBTOOL relies on them |
1fcfac98 | 27 | PACKAGE=libobjc |
252dde64 | 28 | # Version is pulled out to make it a bit easier to change using sed. |
c7907a55 | 29 | VERSION=4:0:0 |
1fcfac98 NN |
30 | AC_SUBST(VERSION) |
31 | ||
6706f116 AO |
32 | # This works around the fact that libtool configuration may change LD |
33 | # for this particular configuration, but some shells, instead of | |
34 | # keeping the changes in LD private, export them just because LD is | |
35 | # exported. | |
36 | ORIGINAL_LD_FOR_MULTILIBS=$LD | |
37 | ||
252dde64 NN |
38 | # ------- |
39 | # Options | |
40 | # ------- | |
41 | ||
252dde64 NN |
42 | # We use these options to decide which functions to include. |
43 | AC_ARG_WITH(target-subdir, | |
44 | [ --with-target-subdir=SUBDIR | |
45 | configuring in a subdirectory]) | |
46 | AC_ARG_WITH(cross-host, | |
47 | [ --with-cross-host=HOST configuring with a cross compiler]) | |
48 | ||
49 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
50 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
51 | [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], | |
52 | [case "$enableval" in | |
53 | yes) version_specific_libs=yes ;; | |
54 | no) version_specific_libs=no ;; | |
55 | *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; | |
56 | esac], | |
57 | [version_specific_libs=no]) | |
58 | AC_MSG_RESULT($version_specific_libs) | |
59 | ||
252dde64 NN |
60 | # ----------- |
61 | # Directories | |
62 | # ----------- | |
9c01f395 | 63 | |
5b043f08 GK |
64 | # Find the rest of the source tree framework. |
65 | AM_ENABLE_MULTILIB(, ..) | |
aebb8c22 | 66 | |
b150efee | 67 | AC_CANONICAL_SYSTEM |
1506eac1 | 68 | ACX_NONCANONICAL_TARGET |
9c01f395 | 69 | |
af0c82b3 | 70 | # Export source directory. |
9c01f395 NN |
71 | # These need to be absolute paths, yet at the same time need to |
72 | # canonicalize only relative paths, because then amd will not unmount | |
73 | # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. | |
9c01f395 | 74 | case $srcdir in |
252dde64 NN |
75 | [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;; |
76 | *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; | |
9c01f395 | 77 | esac |
9c01f395 NN |
78 | AC_SUBST(glibcpp_srcdir) |
79 | ||
e8e66971 MR |
80 | GCC_WITH_TOOLEXECLIBDIR |
81 | ||
608e1e0c | 82 | # Calculate toolexeclibdir |
a42a57cb | 83 | # Also toolexecdir, though it's only used in toolexeclibdir |
9c01f395 NN |
84 | case ${version_specific_libs} in |
85 | yes) | |
86 | # Need the gcc compiler version to know where to install libraries | |
87 | # and header files if --enable-version-specific-runtime-libs option | |
88 | # is selected. | |
a42a57cb | 89 | toolexecdir='$(libdir)/gcc/$(target_noncanonical)' |
2b37e3d5 | 90 | toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' |
9c01f395 NN |
91 | ;; |
92 | no) | |
93 | if test -n "$with_cross_host" && | |
94 | test x"$with_cross_host" != x"no"; then | |
9c01f395 | 95 | # Install a library built with a cross compiler in tooldir, not libdir. |
a42a57cb | 96 | toolexecdir='$(exec_prefix)/$(target_noncanonical)' |
e8e66971 MR |
97 | case ${with_toolexeclibdir} in |
98 | no) | |
99 | toolexeclibdir='$(toolexecdir)/lib' | |
100 | ;; | |
101 | *) | |
102 | toolexeclibdir=${with_toolexeclibdir} | |
103 | ;; | |
104 | esac | |
608e1e0c | 105 | else |
a42a57cb | 106 | toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)' |
608e1e0c | 107 | toolexeclibdir='$(libdir)' |
9c01f395 NN |
108 | fi |
109 | multi_os_directory=`$CC -print-multi-os-directory` | |
110 | case $multi_os_directory in | |
111 | .) ;; # Avoid trailing /. | |
608e1e0c | 112 | *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; |
9c01f395 NN |
113 | esac |
114 | ;; | |
115 | esac | |
a42a57cb | 116 | AC_SUBST(toolexecdir) |
608e1e0c | 117 | AC_SUBST(toolexeclibdir) |
9c01f395 | 118 | |
ff65de76 AP |
119 | # Figure out if we want to name the include directory and the |
120 | # library name changes differently. | |
7d34a5a9 | 121 | includedirname=include |
45d5f86c | 122 | libsuffix= |
ff65de76 AP |
123 | case "${host}" in |
124 | *-darwin*) | |
125 | # Darwin is the only target so far that needs a different include directory. | |
7d34a5a9 | 126 | includedirname=include-gnu-runtime |
af333b9a | 127 | libsuffix=-gnu |
ff65de76 AP |
128 | ;; |
129 | esac | |
7d34a5a9 | 130 | AC_SUBST(includedirname) |
4620d81e | 131 | AC_SUBST(libsuffix) |
ff65de76 | 132 | |
049bc404 AP |
133 | AC_CONFIG_HEADERS(config.h) |
134 | ||
252dde64 NN |
135 | # -------- |
136 | # Programs | |
137 | # -------- | |
138 | ||
139 | GCC_NO_EXECUTABLES | |
db7f3c69 NN |
140 | |
141 | # We must force CC to /not/ be a precious variable; otherwise | |
142 | # the wrong, non-multilib-adjusted value will be used in multilibs. | |
143 | # As a side effect, we have to subst CFLAGS ourselves. | |
144 | m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) | |
145 | m4_define([_AC_ARG_VAR_PRECIOUS],[]) | |
252dde64 | 146 | AC_PROG_CC |
1b3b24c2 | 147 | m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) |
db7f3c69 | 148 | |
a5a813f8 | 149 | # extra LD Flags which are required for targets |
7de6ba7a | 150 | ACX_LT_HOST_FLAGS |
a5a813f8 | 151 | |
7b7168cf IT |
152 | # Add CET specific flags if CET is enabled |
153 | GCC_CET_FLAGS(CET_FLAGS) | |
154 | XCFLAGS="$XCFLAGS $CET_FLAGS" | |
155 | ||
db7f3c69 | 156 | AC_SUBST(CFLAGS) |
7b7168cf | 157 | AC_SUBST(XCFLAGS) |
252dde64 NN |
158 | |
159 | AC_CHECK_TOOL(AS, as) | |
160 | AC_CHECK_TOOL(AR, ar) | |
161 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
162 | AC_PROG_INSTALL | |
7c6b0e92 | 163 | |
dd365157 MS |
164 | AM_MAINTAINER_MODE |
165 | ||
9c01f395 NN |
166 | # Enable Win32 DLL on MS Windows - FIXME |
167 | AC_LIBTOOL_WIN32_DLL | |
7c6b0e92 | 168 | |
b150efee | 169 | AC_PROG_LIBTOOL |
bce1b489 | 170 | |
dd365157 MS |
171 | AM_PROG_CC_C_O |
172 | ||
b150efee | 173 | AC_PROG_MAKE_SET |
bce1b489 | 174 | |
6a6d3817 IS |
175 | AM_CONDITIONAL([ENABLE_DARWIN_AT_RPATH], [test x$enable_darwin_at_rpath = xyes]) |
176 | ||
177 | # Must come after libtool is initialized. | |
178 | case "${host}" in | |
179 | *-darwin[[4567]]*) | |
180 | # Earlier Darwin versions need -single_module when linking libobjc; they | |
181 | # do not support @rpath. | |
182 | extra_ldflags_libobjc='$(lt_host_flags) -Wl,-single_module' | |
183 | ;; | |
184 | *-darwin*) | |
185 | # Otherwise, single_module is the default and multi-module is ignored and | |
186 | # obsolete. | |
187 | extra_ldflags_libobjc='$(lt_host_flags)' | |
188 | if test "x$enable_darwin_at_rpath" = "xyes"; then | |
189 | extra_ldflags_libobjc="${extra_ldflags_libobjc} -Wc,-nodefaultrpaths" | |
190 | extra_ldflags_libobjc="${extra_ldflags_libobjc} -Wl,-rpath,@loader_path" | |
191 | fi | |
192 | ;; | |
193 | *-cygwin*|*-mingw*) | |
194 | # Tell libtool to build DLLs on Windows | |
195 | extra_ldflags_libobjc='$(lt_host_flags)' | |
196 | ;; | |
197 | esac | |
198 | AC_SUBST(extra_ldflags_libobjc) | |
199 | ||
252dde64 NN |
200 | # ------- |
201 | # Headers | |
202 | # ------- | |
203 | ||
bce1b489 BE |
204 | # Sanity check for the cross-compilation case: |
205 | AC_CHECK_HEADER(stdio.h,:, | |
206 | [AC_MSG_ERROR([Can't find stdio.h. | |
207 | You must have a usable C system for the target already installed, at least | |
208 | including headers and, preferably, the library, before you can configure | |
209 | the Objective C runtime system. If necessary, install gcc now with | |
210 | \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])]) | |
211 | ||
212 | AC_HEADER_STDC | |
213 | ||
d972a4c2 OP |
214 | AC_CHECK_HEADERS(sched.h) |
215 | ||
252dde64 NN |
216 | # ----------- |
217 | # Miscellanea | |
218 | # ----------- | |
219 | ||
fd312537 NP |
220 | # Check if we have thread-local storage |
221 | GCC_CHECK_TLS | |
bce1b489 | 222 | |
539280a8 TS |
223 | gt_BITFIELD_TYPE_MATTERS |
224 | ||
114bf3f1 MK |
225 | # ----------- |
226 | # boehm-gc | |
227 | # ----------- | |
228 | ||
229 | AC_ARG_ENABLE(objc-gc, | |
230 | [AS_HELP_STRING([--enable-objc-gc], | |
231 | [enable use of Boehm's garbage collector with the | |
ac02e9a8 | 232 | GNU Objective-C runtime])],,enable_objc_gc=no) |
114bf3f1 MK |
233 | AC_ARG_WITH([target-bdw-gc], |
234 | [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST], | |
235 | [specify prefix directory for installed bdw-gc package. | |
236 | Equivalent to --with-target-bdw-gc-include=PATH/include | |
237 | plus --with-target-bdw-gc-lib=PATH/lib])]) | |
238 | AC_ARG_WITH([target-bdw-gc-include], | |
239 | [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST], | |
240 | [specify directories for installed bdw-gc include files])]) | |
241 | AC_ARG_WITH([target-bdw-gc-lib], | |
242 | [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST], | |
243 | [specify directories for installed bdw-gc library])]) | |
244 | ||
245 | case "$enable_objc_gc" in | |
246 | no) | |
247 | use_bdw_gc=no | |
248 | ;; | |
249 | *) | |
250 | AC_MSG_CHECKING([for bdw garbage collector]) | |
251 | if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then | |
825fba52 MK |
252 | dnl no bdw-gw options, assuming bdw-gc in default locations |
253 | BDW_GC_CFLAGS= | |
254 | BDW_GC_LIBS="-lgc" | |
114bf3f1 MK |
255 | else |
256 | dnl bdw-gw options passed by configure flags | |
257 | if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then | |
258 | AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing]) | |
259 | elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then | |
260 | AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing]) | |
261 | else | |
262 | AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options]) | |
263 | fi | |
264 | mldir=`${CC-gcc} --print-multi-directory 2>/dev/null` | |
265 | bdw_val= | |
266 | if test "x$with_target_bdw_gc" != x; then | |
267 | for i in `echo $with_target_bdw_gc | tr ',' ' '`; do | |
268 | case "$i" in | |
269 | *=*) sd=${i%%=*}; d=${i#*=} ;; | |
270 | *) sd=.; d=$i ;; | |
271 | esac | |
272 | if test "$mldir" = "$sd"; then | |
273 | bdw_val=$d | |
274 | fi | |
275 | done | |
276 | if test "x$bdw_val" = x; then | |
277 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc]) | |
278 | fi | |
279 | bdw_inc_dir="$bdw_val/include" | |
280 | bdw_lib_dir="$bdw_val/lib" | |
281 | fi | |
282 | bdw_val= | |
283 | if test "x$with_target_bdw_gc_include" != x; then | |
284 | for i in `echo $with_target_bdw_gc_include | tr ',' ' '`; do | |
285 | case "$i" in | |
286 | *=*) sd=${i%%=*}; d=${i#*=} ;; | |
8465132c | 287 | *) sd=.; d=$i; fallback=$i ;; |
114bf3f1 MK |
288 | esac |
289 | if test "$mldir" = "$sd"; then | |
290 | bdw_val=$d | |
291 | fi | |
292 | done | |
8465132c MK |
293 | if test "x$bdw_val" = x && test "x$bdw_inc_dir" = x && test "x$fallback" != x; then |
294 | bdw_inc_dir="$fallback" | |
295 | elif test "x$bdw_val" = x; then | |
114bf3f1 | 296 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-include]) |
8465132c MK |
297 | else |
298 | bdw_inc_dir="$bdw_val" | |
114bf3f1 | 299 | fi |
114bf3f1 MK |
300 | fi |
301 | bdw_val= | |
302 | if test "x$with_target_bdw_gc_lib" != x; then | |
303 | for i in `echo $with_target_bdw_gc_lib | tr ',' ' '`; do | |
304 | case "$i" in | |
305 | *=*) sd=${i%%=*}; d=${i#*=} ;; | |
306 | *) sd=.; d=$i ;; | |
307 | esac | |
308 | if test "$mldir" = "$sd"; then | |
309 | bdw_val=$d | |
310 | fi | |
311 | done | |
312 | if test "x$bdw_val" = x; then | |
313 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-lib]) | |
314 | fi | |
315 | bdw_lib_dir="$bdw_val" | |
316 | fi | |
317 | if test "x$bdw_inc_dir" = x; then | |
318 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-include]) | |
319 | fi | |
320 | if test "x$bdw_lib_dir" = x; then | |
321 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-lib]) | |
322 | fi | |
323 | BDW_GC_CFLAGS="-I$bdw_inc_dir" | |
8465132c MK |
324 | if test -f $bdw_lib_dir/libgc.la; then |
325 | BDW_GC_LIBS="$bdw_lib_dir/libgc.la" | |
326 | else | |
327 | BDW_GC_LIBS="-L$bdw_lib_dir -lgc" | |
328 | fi | |
114bf3f1 MK |
329 | AC_MSG_RESULT([found]) |
330 | fi | |
331 | ||
8465132c MK |
332 | case "$BDW_GC_LIBS" in |
333 | *libgc.la) | |
114bf3f1 | 334 | use_bdw_gc=yes |
8465132c MK |
335 | ;; |
336 | *) | |
337 | AC_MSG_CHECKING([for system boehm-gc]) | |
338 | save_CFLAGS=$CFLAGS | |
339 | save_LIBS=$LIBS | |
340 | CFLAGS="$CFLAGS $BDW_GC_CFLAGS" | |
341 | LIBS="$LIBS $BDW_GC_LIBS" | |
342 | dnl the link test is not good enough for ARM32 multilib detection, | |
343 | dnl first check to link, then to run | |
344 | AC_LINK_IFELSE( | |
345 | [AC_LANG_PROGRAM([#include <gc/gc.h>],[GC_init()])], | |
346 | [ | |
347 | AC_RUN_IFELSE([AC_LANG_SOURCE([[ | |
348 | #include <gc/gc.h> | |
349 | int main() { | |
350 | GC_init(); | |
351 | return 0; | |
352 | } | |
353 | ]])], | |
354 | [system_bdw_gc_found=yes], | |
355 | [system_bdw_gc_found=no], | |
356 | dnl assume no system boehm-gc for cross builds ... | |
357 | [system_bdw_gc_found=no] | |
358 | ) | |
359 | ], | |
360 | [system_bdw_gc_found=no]) | |
361 | CFLAGS=$save_CFLAGS | |
362 | LIBS=$save_LIBS | |
363 | if test x$enable_objc_gc = xauto && test x$system_bdw_gc_found = xno; then | |
364 | AC_MSG_WARN([system bdw-gc not found, not building libobjc_gc]) | |
365 | use_bdw_gc=no | |
366 | elif test x$enable_objc_gc = xyes && test x$system_bdw_gc_found = xno; then | |
367 | AC_MSG_ERROR([system bdw-gc required but not found]) | |
368 | else | |
369 | use_bdw_gc=yes | |
370 | AC_MSG_RESULT([found]) | |
371 | fi | |
372 | esac | |
114bf3f1 MK |
373 | esac |
374 | ||
375 | if test "$use_bdw_gc" = no; then | |
376 | OBJC_GCFLAGS='' | |
377 | OBJC_BOEHM_GC='' | |
378 | OBJC_BOEHM_GC_INCLUDES='' | |
379 | OBJC_BOEHM_GC_LIBS='' | |
380 | else | |
381 | OBJC_GCFLAGS='-DOBJC_WITH_GC=1' | |
382 | OBJC_BOEHM_GC='libobjc_gc$(libsuffix).la' | |
383 | OBJC_BOEHM_GC_INCLUDES=$BDW_GC_CFLAGS | |
384 | OBJC_BOEHM_GC_LIBS=$BDW_GC_LIBS | |
385 | fi | |
386 | AC_SUBST(OBJC_GCFLAGS) | |
387 | AC_SUBST(OBJC_BOEHM_GC) | |
388 | AC_SUBST(OBJC_BOEHM_GC_INCLUDES) | |
389 | AC_SUBST(OBJC_BOEHM_GC_LIBS) | |
390 | ||
3c36aa6b JJ |
391 | # Determine what GCC version number to use in filesystem paths. |
392 | GCC_BASE_VER | |
393 | ||
252dde64 NN |
394 | # ------ |
395 | # Output | |
396 | # ------ | |
bce1b489 | 397 | |
2c888488 L |
398 | if test ${multilib} = yes; then |
399 | multilib_arg="--enable-multilib" | |
400 | else | |
401 | multilib_arg= | |
402 | fi | |
252dde64 | 403 | |
2c888488 | 404 | AC_CONFIG_FILES([Makefile]) |
252dde64 | 405 | AC_OUTPUT |