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265ab036 | 1 | # Process this file with autoconf to produce a configure script. |
fbd26352 | 2 | # Copyright (C) 1994-2019 Free Software Foundation, Inc. |
9c4e05bc | 3 | # Originally contributed by Dave Love (d.love@dl.ac.uk). |
265ab036 | 4 | # |
9c4e05bc | 5 | #This file is part of GCC. |
265ab036 | 6 | # |
9c4e05bc | 7 | #GCC is free software; you can redistribute it and/or modify |
265ab036 | 8 | #it under the terms of the GNU General Public License as published by |
6bc9506f | 9 | #the Free Software Foundation; either version 3, or (at your option) |
265ab036 | 10 | #any later version. |
11 | # | |
9c4e05bc | 12 | #GCC is distributed in the hope that it will be useful, |
265ab036 | 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 | |
6bc9506f | 18 | #along with GCC; see the file COPYING3. If not see |
19 | #<http://www.gnu.org/licenses/>. | |
265ab036 | 20 | |
a4761b96 | 21 | AC_INIT(package-unused, version-unused,, libobjc) |
0404be24 | 22 | AC_CONFIG_SRCDIR([objc/objc.h]) |
c1eb9e31 | 23 | GCC_TOPLEV_SUBDIRS |
265ab036 | 24 | |
0404be24 | 25 | # We need the following definitions because AC_PROG_LIBTOOL relies on them |
62fa4357 | 26 | PACKAGE=libobjc |
0404be24 | 27 | # Version is pulled out to make it a bit easier to change using sed. |
e258c955 | 28 | VERSION=4:0:0 |
62fa4357 | 29 | AC_SUBST(VERSION) |
30 | ||
0b045cf7 | 31 | # This works around the fact that libtool configuration may change LD |
32 | # for this particular configuration, but some shells, instead of | |
33 | # keeping the changes in LD private, export them just because LD is | |
34 | # exported. | |
35 | ORIGINAL_LD_FOR_MULTILIBS=$LD | |
36 | ||
0404be24 | 37 | # ------- |
38 | # Options | |
39 | # ------- | |
40 | ||
0404be24 | 41 | # We use these options to decide which functions to include. |
42 | AC_ARG_WITH(target-subdir, | |
43 | [ --with-target-subdir=SUBDIR | |
44 | configuring in a subdirectory]) | |
45 | AC_ARG_WITH(cross-host, | |
46 | [ --with-cross-host=HOST configuring with a cross compiler]) | |
47 | ||
48 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
49 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
50 | [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], | |
51 | [case "$enableval" in | |
52 | yes) version_specific_libs=yes ;; | |
53 | no) version_specific_libs=no ;; | |
54 | *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);; | |
55 | esac], | |
56 | [version_specific_libs=no]) | |
57 | AC_MSG_RESULT($version_specific_libs) | |
58 | ||
0404be24 | 59 | # ----------- |
60 | # Directories | |
61 | # ----------- | |
9c4e05bc | 62 | |
ff434425 | 63 | # Find the rest of the source tree framework. |
64 | AM_ENABLE_MULTILIB(, ..) | |
8400ab1c | 65 | |
6ed57656 | 66 | AC_CANONICAL_SYSTEM |
f251b3df | 67 | ACX_NONCANONICAL_TARGET |
9c4e05bc | 68 | |
5af8565b | 69 | # Export source directory. |
9c4e05bc | 70 | # These need to be absolute paths, yet at the same time need to |
71 | # canonicalize only relative paths, because then amd will not unmount | |
72 | # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. | |
9c4e05bc | 73 | case $srcdir in |
0404be24 | 74 | [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;; |
75 | *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; | |
9c4e05bc | 76 | esac |
9c4e05bc | 77 | AC_SUBST(glibcpp_srcdir) |
78 | ||
7fc7cb73 | 79 | # Calculate toolexeclibdir |
85fe910a | 80 | # Also toolexecdir, though it's only used in toolexeclibdir |
9c4e05bc | 81 | case ${version_specific_libs} in |
82 | yes) | |
83 | # Need the gcc compiler version to know where to install libraries | |
84 | # and header files if --enable-version-specific-runtime-libs option | |
85 | # is selected. | |
85fe910a | 86 | toolexecdir='$(libdir)/gcc/$(target_noncanonical)' |
32ee7eb8 | 87 | toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)' |
9c4e05bc | 88 | ;; |
89 | no) | |
90 | if test -n "$with_cross_host" && | |
91 | test x"$with_cross_host" != x"no"; then | |
9c4e05bc | 92 | # Install a library built with a cross compiler in tooldir, not libdir. |
85fe910a | 93 | toolexecdir='$(exec_prefix)/$(target_noncanonical)' |
7fc7cb73 | 94 | toolexeclibdir='$(toolexecdir)/lib' |
95 | else | |
85fe910a | 96 | toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)' |
7fc7cb73 | 97 | toolexeclibdir='$(libdir)' |
9c4e05bc | 98 | fi |
99 | multi_os_directory=`$CC -print-multi-os-directory` | |
100 | case $multi_os_directory in | |
101 | .) ;; # Avoid trailing /. | |
7fc7cb73 | 102 | *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;; |
9c4e05bc | 103 | esac |
104 | ;; | |
105 | esac | |
85fe910a | 106 | AC_SUBST(toolexecdir) |
7fc7cb73 | 107 | AC_SUBST(toolexeclibdir) |
9c4e05bc | 108 | |
166e6519 | 109 | # Figure out if we want to name the include directory and the |
110 | # library name changes differently. | |
ce716239 | 111 | includedirname=include |
f90c9f0e | 112 | libsuffix= |
166e6519 | 113 | case "${host}" in |
114 | *-darwin*) | |
115 | # Darwin is the only target so far that needs a different include directory. | |
ce716239 | 116 | includedirname=include-gnu-runtime |
6d7301dc | 117 | libsuffix=-gnu |
166e6519 | 118 | ;; |
119 | esac | |
ce716239 | 120 | AC_SUBST(includedirname) |
1e0545b2 | 121 | AC_SUBST(libsuffix) |
166e6519 | 122 | |
e7d4d902 | 123 | AC_CONFIG_HEADERS(config.h) |
124 | ||
0404be24 | 125 | # -------- |
126 | # Programs | |
127 | # -------- | |
128 | ||
129 | GCC_NO_EXECUTABLES | |
b5bed5a5 | 130 | |
131 | # We must force CC to /not/ be a precious variable; otherwise | |
132 | # the wrong, non-multilib-adjusted value will be used in multilibs. | |
133 | # As a side effect, we have to subst CFLAGS ourselves. | |
134 | m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS]) | |
135 | m4_define([_AC_ARG_VAR_PRECIOUS],[]) | |
0404be24 | 136 | AC_PROG_CC |
9abe4a66 | 137 | m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) |
b5bed5a5 | 138 | |
a16ff609 | 139 | # extra LD Flags which are required for targets |
8c35d268 | 140 | ACX_LT_HOST_FLAGS |
a16ff609 | 141 | case "${host}" in |
142 | *-darwin*) | |
143 | # Darwin needs -single_module when linking libobjc | |
8c35d268 | 144 | extra_ldflags_libobjc='$(lt_host_flags) -Wl,-single_module' |
a16ff609 | 145 | ;; |
41f83444 | 146 | *-cygwin*|*-mingw*) |
147 | # Tell libtool to build DLLs on Windows | |
8c35d268 | 148 | extra_ldflags_libobjc='$(lt_host_flags)' |
41f83444 | 149 | ;; |
a16ff609 | 150 | esac |
151 | AC_SUBST(extra_ldflags_libobjc) | |
152 | ||
65d4019c | 153 | # Add CET specific flags if CET is enabled |
154 | GCC_CET_FLAGS(CET_FLAGS) | |
155 | XCFLAGS="$XCFLAGS $CET_FLAGS" | |
156 | ||
b5bed5a5 | 157 | AC_SUBST(CFLAGS) |
65d4019c | 158 | AC_SUBST(XCFLAGS) |
0404be24 | 159 | |
160 | AC_CHECK_TOOL(AS, as) | |
161 | AC_CHECK_TOOL(AR, ar) | |
162 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
163 | AC_PROG_INSTALL | |
ce7c4a11 | 164 | |
3c72aa9c | 165 | AM_MAINTAINER_MODE |
166 | ||
9c4e05bc | 167 | # Enable Win32 DLL on MS Windows - FIXME |
168 | AC_LIBTOOL_WIN32_DLL | |
ce7c4a11 | 169 | |
6ed57656 | 170 | AC_PROG_LIBTOOL |
265ab036 | 171 | |
3c72aa9c | 172 | AM_PROG_CC_C_O |
173 | ||
6ed57656 | 174 | AC_PROG_MAKE_SET |
265ab036 | 175 | |
0404be24 | 176 | # ------- |
177 | # Headers | |
178 | # ------- | |
179 | ||
265ab036 | 180 | # Sanity check for the cross-compilation case: |
181 | AC_CHECK_HEADER(stdio.h,:, | |
182 | [AC_MSG_ERROR([Can't find stdio.h. | |
183 | You must have a usable C system for the target already installed, at least | |
184 | including headers and, preferably, the library, before you can configure | |
185 | the Objective C runtime system. If necessary, install gcc now with | |
186 | \`LANGUAGES=c', then the target library, then build with \`LANGUAGES=objc'.])]) | |
187 | ||
188 | AC_HEADER_STDC | |
189 | ||
284f820a | 190 | AC_CHECK_HEADERS(sched.h) |
191 | ||
0404be24 | 192 | # ----------- |
193 | # Miscellanea | |
194 | # ----------- | |
195 | ||
a2a8dcb1 | 196 | # Check if we have thread-local storage |
197 | GCC_CHECK_TLS | |
265ab036 | 198 | |
9ea95390 | 199 | gt_BITFIELD_TYPE_MATTERS |
200 | ||
baf71228 | 201 | # ----------- |
202 | # boehm-gc | |
203 | # ----------- | |
204 | ||
205 | AC_ARG_ENABLE(objc-gc, | |
206 | [AS_HELP_STRING([--enable-objc-gc], | |
207 | [enable use of Boehm's garbage collector with the | |
754a270b | 208 | GNU Objective-C runtime])],,enable_objc_gc=no) |
baf71228 | 209 | AC_ARG_WITH([target-bdw-gc], |
210 | [AS_HELP_STRING([--with-target-bdw-gc=PATHLIST], | |
211 | [specify prefix directory for installed bdw-gc package. | |
212 | Equivalent to --with-target-bdw-gc-include=PATH/include | |
213 | plus --with-target-bdw-gc-lib=PATH/lib])]) | |
214 | AC_ARG_WITH([target-bdw-gc-include], | |
215 | [AS_HELP_STRING([--with-target-bdw-gc-include=PATHLIST], | |
216 | [specify directories for installed bdw-gc include files])]) | |
217 | AC_ARG_WITH([target-bdw-gc-lib], | |
218 | [AS_HELP_STRING([--with-target-bdw-gc-lib=PATHLIST], | |
219 | [specify directories for installed bdw-gc library])]) | |
220 | ||
221 | case "$enable_objc_gc" in | |
222 | no) | |
223 | use_bdw_gc=no | |
224 | ;; | |
225 | *) | |
226 | AC_MSG_CHECKING([for bdw garbage collector]) | |
227 | if test "x$with_target_bdw_gc$with_target_bdw_gc_include$with_target_bdw_gc_lib" = x; then | |
74dfdbe3 | 228 | dnl no bdw-gw options, assuming bdw-gc in default locations |
229 | BDW_GC_CFLAGS= | |
230 | BDW_GC_LIBS="-lgc" | |
baf71228 | 231 | else |
232 | dnl bdw-gw options passed by configure flags | |
233 | if test "x$with_target_bdw_gc_include" = x && test "x$with_target_bdw_gc_lib" != x; then | |
234 | AC_MSG_ERROR([found --with-target-bdw-gc-lib but --with-target-bdw-gc-include missing]) | |
235 | elif test "x$with_target_bdw_gc_include" != x && test "x$with_target_bdw_gc_lib" = x; then | |
236 | AC_MSG_ERROR([found --with-target-bdw-gc-include but --with-target-bdw-gc-lib missing]) | |
237 | else | |
238 | AC_MSG_RESULT([using paths configured with --with-target-bdw-gc options]) | |
239 | fi | |
240 | mldir=`${CC-gcc} --print-multi-directory 2>/dev/null` | |
241 | bdw_val= | |
242 | if test "x$with_target_bdw_gc" != x; then | |
243 | for i in `echo $with_target_bdw_gc | tr ',' ' '`; do | |
244 | case "$i" in | |
245 | *=*) sd=${i%%=*}; d=${i#*=} ;; | |
246 | *) sd=.; d=$i ;; | |
247 | esac | |
248 | if test "$mldir" = "$sd"; then | |
249 | bdw_val=$d | |
250 | fi | |
251 | done | |
252 | if test "x$bdw_val" = x; then | |
253 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc]) | |
254 | fi | |
255 | bdw_inc_dir="$bdw_val/include" | |
256 | bdw_lib_dir="$bdw_val/lib" | |
257 | fi | |
258 | bdw_val= | |
259 | if test "x$with_target_bdw_gc_include" != x; then | |
260 | for i in `echo $with_target_bdw_gc_include | tr ',' ' '`; do | |
261 | case "$i" in | |
262 | *=*) sd=${i%%=*}; d=${i#*=} ;; | |
378cbca0 | 263 | *) sd=.; d=$i; fallback=$i ;; |
baf71228 | 264 | esac |
265 | if test "$mldir" = "$sd"; then | |
266 | bdw_val=$d | |
267 | fi | |
268 | done | |
378cbca0 | 269 | if test "x$bdw_val" = x && test "x$bdw_inc_dir" = x && test "x$fallback" != x; then |
270 | bdw_inc_dir="$fallback" | |
271 | elif test "x$bdw_val" = x; then | |
baf71228 | 272 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-include]) |
378cbca0 | 273 | else |
274 | bdw_inc_dir="$bdw_val" | |
baf71228 | 275 | fi |
baf71228 | 276 | fi |
277 | bdw_val= | |
278 | if test "x$with_target_bdw_gc_lib" != x; then | |
279 | for i in `echo $with_target_bdw_gc_lib | tr ',' ' '`; do | |
280 | case "$i" in | |
281 | *=*) sd=${i%%=*}; d=${i#*=} ;; | |
282 | *) sd=.; d=$i ;; | |
283 | esac | |
284 | if test "$mldir" = "$sd"; then | |
285 | bdw_val=$d | |
286 | fi | |
287 | done | |
288 | if test "x$bdw_val" = x; then | |
289 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-lib]) | |
290 | fi | |
291 | bdw_lib_dir="$bdw_val" | |
292 | fi | |
293 | if test "x$bdw_inc_dir" = x; then | |
294 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-include]) | |
295 | fi | |
296 | if test "x$bdw_lib_dir" = x; then | |
297 | AC_MSG_ERROR([no multilib path ($mldir) found in --with-target-bdw-gc-lib]) | |
298 | fi | |
299 | BDW_GC_CFLAGS="-I$bdw_inc_dir" | |
378cbca0 | 300 | if test -f $bdw_lib_dir/libgc.la; then |
301 | BDW_GC_LIBS="$bdw_lib_dir/libgc.la" | |
302 | else | |
303 | BDW_GC_LIBS="-L$bdw_lib_dir -lgc" | |
304 | fi | |
baf71228 | 305 | AC_MSG_RESULT([found]) |
306 | fi | |
307 | ||
378cbca0 | 308 | case "$BDW_GC_LIBS" in |
309 | *libgc.la) | |
baf71228 | 310 | use_bdw_gc=yes |
378cbca0 | 311 | ;; |
312 | *) | |
313 | AC_MSG_CHECKING([for system boehm-gc]) | |
314 | save_CFLAGS=$CFLAGS | |
315 | save_LIBS=$LIBS | |
316 | CFLAGS="$CFLAGS $BDW_GC_CFLAGS" | |
317 | LIBS="$LIBS $BDW_GC_LIBS" | |
318 | dnl the link test is not good enough for ARM32 multilib detection, | |
319 | dnl first check to link, then to run | |
320 | AC_LINK_IFELSE( | |
321 | [AC_LANG_PROGRAM([#include <gc/gc.h>],[GC_init()])], | |
322 | [ | |
323 | AC_RUN_IFELSE([AC_LANG_SOURCE([[ | |
324 | #include <gc/gc.h> | |
325 | int main() { | |
326 | GC_init(); | |
327 | return 0; | |
328 | } | |
329 | ]])], | |
330 | [system_bdw_gc_found=yes], | |
331 | [system_bdw_gc_found=no], | |
332 | dnl assume no system boehm-gc for cross builds ... | |
333 | [system_bdw_gc_found=no] | |
334 | ) | |
335 | ], | |
336 | [system_bdw_gc_found=no]) | |
337 | CFLAGS=$save_CFLAGS | |
338 | LIBS=$save_LIBS | |
339 | if test x$enable_objc_gc = xauto && test x$system_bdw_gc_found = xno; then | |
340 | AC_MSG_WARN([system bdw-gc not found, not building libobjc_gc]) | |
341 | use_bdw_gc=no | |
342 | elif test x$enable_objc_gc = xyes && test x$system_bdw_gc_found = xno; then | |
343 | AC_MSG_ERROR([system bdw-gc required but not found]) | |
344 | else | |
345 | use_bdw_gc=yes | |
346 | AC_MSG_RESULT([found]) | |
347 | fi | |
348 | esac | |
baf71228 | 349 | esac |
350 | ||
351 | if test "$use_bdw_gc" = no; then | |
352 | OBJC_GCFLAGS='' | |
353 | OBJC_BOEHM_GC='' | |
354 | OBJC_BOEHM_GC_INCLUDES='' | |
355 | OBJC_BOEHM_GC_LIBS='' | |
356 | else | |
357 | OBJC_GCFLAGS='-DOBJC_WITH_GC=1' | |
358 | OBJC_BOEHM_GC='libobjc_gc$(libsuffix).la' | |
359 | OBJC_BOEHM_GC_INCLUDES=$BDW_GC_CFLAGS | |
360 | OBJC_BOEHM_GC_LIBS=$BDW_GC_LIBS | |
361 | fi | |
362 | AC_SUBST(OBJC_GCFLAGS) | |
363 | AC_SUBST(OBJC_BOEHM_GC) | |
364 | AC_SUBST(OBJC_BOEHM_GC_INCLUDES) | |
365 | AC_SUBST(OBJC_BOEHM_GC_LIBS) | |
366 | ||
0812bb06 | 367 | # Determine what GCC version number to use in filesystem paths. |
368 | GCC_BASE_VER | |
369 | ||
0404be24 | 370 | # ------ |
371 | # Output | |
372 | # ------ | |
265ab036 | 373 | |
daf4a08b | 374 | if test ${multilib} = yes; then |
375 | multilib_arg="--enable-multilib" | |
376 | else | |
377 | multilib_arg= | |
378 | fi | |
0404be24 | 379 | |
daf4a08b | 380 | AC_CONFIG_FILES([Makefile]) |
0404be24 | 381 | AC_OUTPUT |