]>
Commit | Line | Data |
---|---|---|
1a4d82fc | 1 | # configure.ac -- Backtrace configure script. |
94b46f34 | 2 | # Copyright (C) 2012-2018 Free Software Foundation, Inc. |
1a4d82fc JJ |
3 | |
4 | # Redistribution and use in source and binary forms, with or without | |
5 | # modification, are permitted provided that the following conditions are | |
6 | # met: | |
7 | ||
8 | # (1) Redistributions of source code must retain the above copyright | |
94b46f34 | 9 | # notice, this list of conditions and the following disclaimer. |
1a4d82fc JJ |
10 | |
11 | # (2) Redistributions in binary form must reproduce the above copyright | |
12 | # notice, this list of conditions and the following disclaimer in | |
13 | # the documentation and/or other materials provided with the | |
94b46f34 XL |
14 | # distribution. |
15 | ||
1a4d82fc JJ |
16 | # (3) The name of the author may not be used to |
17 | # endorse or promote products derived from this software without | |
18 | # specific prior written permission. | |
19 | ||
20 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
21 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
22 | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
23 | # DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, | |
24 | # INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
25 | # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
26 | # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
27 | # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
28 | # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
29 | # IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
30 | # POSSIBILITY OF SUCH DAMAGE. | |
31 | ||
32 | AC_PREREQ(2.64) | |
33 | AC_INIT(package-unused, version-unused,, libbacktrace) | |
34 | AC_CONFIG_SRCDIR(backtrace.h) | |
35 | AC_CONFIG_HEADER(config.h) | |
94b46f34 | 36 | AC_CONFIG_MACRO_DIR(config) |
1a4d82fc | 37 | |
94b46f34 | 38 | # with_target_subdir is used when configured as part of a GCC tree. |
9346a6ac AL |
39 | if test -n "${with_target_subdir}"; then |
40 | AM_ENABLE_MULTILIB(, ..) | |
41 | fi | |
42 | ||
1a4d82fc JJ |
43 | AC_CANONICAL_SYSTEM |
44 | target_alias=${target_alias-$host_alias} | |
45 | ||
46 | AC_USE_SYSTEM_EXTENSIONS | |
47 | ||
48 | libtool_VERSION=1:0:0 | |
49 | AC_SUBST(libtool_VERSION) | |
50 | ||
51 | # 1.11.1: Require that version of automake. | |
52 | # foreign: Don't require README, INSTALL, NEWS, etc. | |
53 | # no-define: Don't define PACKAGE and VERSION. | |
54 | # no-dependencies: Don't generate automatic dependencies. | |
55 | # (because it breaks when using bootstrap-lean, since some of the | |
56 | # headers are gone at "make install" time). | |
57 | # -Wall: Issue all automake warnings. | |
58 | # -Wno-portability: Don't warn about constructs supported by GNU make. | |
59 | # (because GCC requires GNU make anyhow). | |
60 | AM_INIT_AUTOMAKE([1.11.1 foreign no-dist no-define no-dependencies -Wall -Wno-portability]) | |
61 | ||
62 | AM_MAINTAINER_MODE | |
63 | ||
64 | AC_ARG_WITH(target-subdir, | |
65 | [ --with-target-subdir=SUBDIR Configuring in a subdirectory for target]) | |
66 | ||
67 | # We must force CC to /not/ be precious variables; otherwise | |
68 | # the wrong, non-multilib-adjusted value will be used in multilibs. | |
69 | # As a side effect, we have to subst CFLAGS ourselves. | |
70 | m4_rename([_AC_ARG_VAR_PRECIOUS],[backtrace_PRECIOUS]) | |
71 | m4_define([_AC_ARG_VAR_PRECIOUS],[]) | |
72 | AC_PROG_CC | |
73 | m4_rename_force([backtrace_PRECIOUS],[_AC_ARG_VAR_PRECIOUS]) | |
74 | ||
75 | AC_SUBST(CFLAGS) | |
76 | ||
1a4d82fc JJ |
77 | AC_PROG_AWK |
78 | case "$AWK" in | |
79 | "") AC_MSG_ERROR([can't build without awk]) ;; | |
80 | esac | |
81 | ||
9cc50fc6 | 82 | LT_INIT |
1a4d82fc JJ |
83 | AM_PROG_LIBTOOL |
84 | ||
94b46f34 XL |
85 | AC_SYS_LARGEFILE |
86 | ||
1a4d82fc JJ |
87 | backtrace_supported=yes |
88 | ||
89 | if test -n "${with_target_subdir}"; then | |
90 | # We are compiling a GCC library. We can assume that the unwind | |
91 | # library exists. | |
1a4d82fc JJ |
92 | BACKTRACE_FILE="backtrace.lo simple.lo" |
93 | else | |
94 | AC_CHECK_HEADER([unwind.h], | |
95 | [AC_CHECK_FUNC([_Unwind_Backtrace], | |
96 | [BACKTRACE_FILE="backtrace.lo simple.lo"], | |
97 | [BACKTRACE_FILE="nounwind.lo" | |
98 | backtrace_supported=no])], | |
99 | [BACKTRACE_FILE="nounwind.lo" | |
100 | backtrace_supported=no]) | |
101 | fi | |
102 | AC_SUBST(BACKTRACE_FILE) | |
103 | ||
104 | EXTRA_FLAGS= | |
105 | if test -n "${with_target_subdir}"; then | |
106 | EXTRA_FLAGS="-funwind-tables -frandom-seed=\$@" | |
107 | else | |
108 | AC_CACHE_CHECK([for -funwind-tables option], | |
109 | [libbacktrace_cv_c_unwind_tables], | |
110 | [CFLAGS_hold="$CFLAGS" | |
111 | CFLAGS="$CFLAGS -funwind-tables" | |
112 | AC_COMPILE_IFELSE( | |
113 | [AC_LANG_PROGRAM([static int f() { return 0; }], [return f();])], | |
114 | [libbacktrace_cv_c_unwind_tables=yes], | |
115 | [libbacktrace_cv_c_unwind_tables=no]) | |
116 | CFLAGS="$CFLAGS_hold"]) | |
117 | if test "$libbacktrace_cv_c_unwind_tables" = "yes"; then | |
118 | EXTRA_FLAGS=-funwind-tables | |
119 | fi | |
120 | AC_CACHE_CHECK([for -frandom-seed=string option], | |
121 | [libbacktrace_cv_c_random_seed_string], | |
122 | [CFLAGS_hold="$CFLAGS" | |
123 | CFLAGS="$CFLAGS -frandom-seed=conftest.lo" | |
124 | AC_COMPILE_IFELSE( | |
125 | [AC_LANG_PROGRAM([], [return 0;])], | |
126 | [libbacktrace_cv_c_random_seed_string=yes], | |
127 | [libbacktrace_cv_c_random_seed_string=no]) | |
128 | CFLAGS="$CFLAGS_hold"]) | |
129 | if test "$libbacktrace_cv_c_random_seed_string" = "yes"; then | |
130 | EXTRA_FLAGS="$EXTRA_FLAGS -frandom-seed=\$@" | |
131 | fi | |
132 | fi | |
133 | AC_SUBST(EXTRA_FLAGS) | |
134 | ||
135 | ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \ | |
136 | -Wmissing-prototypes -Wold-style-definition \ | |
137 | -Wmissing-format-attribute -Wcast-qual], | |
138 | [WARN_FLAGS]) | |
139 | ||
140 | if test -n "${with_target_subdir}"; then | |
141 | WARN_FLAGS="$WARN_FLAGS -Werror" | |
142 | fi | |
143 | ||
144 | AC_SUBST(WARN_FLAGS) | |
145 | ||
146 | if test -n "${with_target_subdir}"; then | |
147 | GCC_CHECK_UNWIND_GETIPINFO | |
148 | else | |
149 | ac_save_CFFLAGS="$CFLAGS" | |
150 | CFLAGS="$CFLAGS -Werror-implicit-function-declaration" | |
151 | AC_MSG_CHECKING([for _Unwind_GetIPInfo]) | |
152 | AC_LINK_IFELSE( | |
153 | [AC_LANG_PROGRAM( | |
154 | [#include "unwind.h" | |
155 | struct _Unwind_Context *context; | |
156 | int ip_before_insn = 0;], | |
157 | [return _Unwind_GetIPInfo (context, &ip_before_insn);])], | |
158 | [have_unwind_getipinfo=yes], [have_unwind_getipinfo=no]) | |
159 | CFLAGS="$ac_save_CFLAGS" | |
160 | AC_MSG_RESULT([$have_unwind_getipinfo]) | |
161 | if test "$have_unwind_getipinfo" = "yes"; then | |
162 | AC_DEFINE(HAVE_GETIPINFO, 1, [Define if _Unwind_GetIPInfo is available.]) | |
163 | fi | |
164 | fi | |
165 | ||
9cc50fc6 | 166 | # Enable --enable-host-shared. |
1a4d82fc JJ |
167 | AC_ARG_ENABLE(host-shared, |
168 | [AS_HELP_STRING([--enable-host-shared], | |
169 | [build host code as shared libraries])], | |
9cc50fc6 | 170 | [PIC_FLAG=-fPIC], [PIC_FLAG=]) |
1a4d82fc JJ |
171 | AC_SUBST(PIC_FLAG) |
172 | ||
173 | # Test for __sync support. | |
174 | AC_CACHE_CHECK([__sync extensions], | |
175 | [libbacktrace_cv_sys_sync], | |
176 | [if test -n "${with_target_subdir}"; then | |
9cc50fc6 SL |
177 | case "${host}" in |
178 | hppa*-*-hpux*) libbacktrace_cv_sys_sync=no ;; | |
179 | *) libbacktrace_cv_sys_sync=yes ;; | |
180 | esac | |
1a4d82fc JJ |
181 | else |
182 | AC_LINK_IFELSE( | |
183 | [AC_LANG_PROGRAM([int i;], | |
184 | [__sync_bool_compare_and_swap (&i, i, i); | |
185 | __sync_lock_test_and_set (&i, 1); | |
186 | __sync_lock_release (&i);])], | |
187 | [libbacktrace_cv_sys_sync=yes], | |
188 | [libbacktrace_cv_sys_sync=no]) | |
189 | fi]) | |
190 | BACKTRACE_SUPPORTS_THREADS=0 | |
191 | if test "$libbacktrace_cv_sys_sync" = "yes"; then | |
192 | BACKTRACE_SUPPORTS_THREADS=1 | |
193 | AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1, | |
194 | [Define to 1 if you have the __sync functions]) | |
195 | fi | |
196 | AC_SUBST(BACKTRACE_SUPPORTS_THREADS) | |
197 | ||
198 | # Test for __atomic support. | |
199 | AC_CACHE_CHECK([__atomic extensions], | |
200 | [libbacktrace_cv_sys_atomic], | |
201 | [if test -n "${with_target_subdir}"; then | |
202 | libbacktrace_cv_sys_atomic=yes | |
203 | else | |
204 | AC_LINK_IFELSE( | |
205 | [AC_LANG_PROGRAM([int i;], | |
206 | [__atomic_load_n (&i, __ATOMIC_ACQUIRE); | |
207 | __atomic_store_n (&i, 1, __ATOMIC_RELEASE);])], | |
208 | [libbacktrace_cv_sys_atomic=yes], | |
209 | [libbacktrace_cv_sys_atomic=no]) | |
210 | fi]) | |
211 | if test "$libbacktrace_cv_sys_atomic" = "yes"; then | |
212 | AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1, | |
213 | [Define to 1 if you have the __atomic functions]) | |
214 | fi | |
215 | ||
216 | # The library needs to be able to read the executable itself. Compile | |
217 | # a file to determine the executable format. The awk script | |
218 | # filetype.awk prints out the file type. | |
219 | AC_CACHE_CHECK([output filetype], | |
220 | [libbacktrace_cv_sys_filetype], | |
221 | [filetype= | |
222 | AC_COMPILE_IFELSE( | |
223 | [AC_LANG_PROGRAM([int i;], [int j;])], | |
224 | [filetype=`${AWK} -f $srcdir/filetype.awk conftest.$ac_objext`], | |
225 | [AC_MSG_FAILURE([compiler failed])]) | |
226 | libbacktrace_cv_sys_filetype=$filetype]) | |
227 | ||
228 | # Match the file type to decide what files to compile. | |
229 | FORMAT_FILE= | |
e9174d1e | 230 | backtrace_supports_data=yes |
1a4d82fc JJ |
231 | case "$libbacktrace_cv_sys_filetype" in |
232 | elf*) FORMAT_FILE="elf.lo" ;; | |
e9174d1e SL |
233 | pecoff) FORMAT_FILE="pecoff.lo" |
234 | backtrace_supports_data=no | |
235 | ;; | |
94b46f34 XL |
236 | xcoff*) FORMAT_FILE="xcoff.lo" |
237 | backtrace_supports_data=no | |
238 | ;; | |
ea8adc8c XL |
239 | macho*) FORMAT_FILE="macho.lo" |
240 | backtrace_supports_data=no | |
241 | ;; | |
1a4d82fc JJ |
242 | *) AC_MSG_WARN([could not determine output file type]) |
243 | FORMAT_FILE="unknown.lo" | |
244 | backtrace_supported=no | |
245 | ;; | |
246 | esac | |
247 | AC_SUBST(FORMAT_FILE) | |
248 | ||
249 | # ELF defines. | |
250 | elfsize= | |
251 | case "$libbacktrace_cv_sys_filetype" in | |
252 | elf32) elfsize=32 ;; | |
253 | elf64) elfsize=64 ;; | |
e9174d1e | 254 | *) elfsize=unused |
1a4d82fc JJ |
255 | esac |
256 | AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64]) | |
257 | ||
94b46f34 XL |
258 | # XCOFF defines. |
259 | xcoffsize= | |
260 | case "$libbacktrace_cv_sys_filetype" in | |
261 | xcoff32) xcoffsize=32 ;; | |
262 | xcoff64) xcoffsize=64 ;; | |
263 | *) xcoffsize=unused | |
264 | esac | |
265 | AC_DEFINE_UNQUOTED([BACKTRACE_XCOFF_SIZE], [$xcoffsize], [XCOFF size: 32 or 64]) | |
266 | ||
1a4d82fc JJ |
267 | BACKTRACE_SUPPORTED=0 |
268 | if test "$backtrace_supported" = "yes"; then | |
269 | BACKTRACE_SUPPORTED=1 | |
270 | fi | |
271 | AC_SUBST(BACKTRACE_SUPPORTED) | |
272 | ||
e9174d1e SL |
273 | BACKTRACE_SUPPORTS_DATA=0 |
274 | if test "$backtrace_supports_data" = "yes"; then | |
275 | BACKTRACE_SUPPORTS_DATA=1 | |
276 | fi | |
277 | AC_SUBST(BACKTRACE_SUPPORTS_DATA) | |
278 | ||
1a4d82fc JJ |
279 | AC_CHECK_HEADERS(sys/mman.h) |
280 | if test "$ac_cv_header_sys_mman_h" = "no"; then | |
281 | have_mmap=no | |
282 | else | |
283 | if test -n "${with_target_subdir}"; then | |
284 | # When built as a GCC target library, we can't do a link test. We | |
285 | # simply assume that if we have mman.h, we have mmap. | |
286 | have_mmap=yes | |
e9174d1e | 287 | case "${host}" in |
9cc50fc6 | 288 | spu-*-*|*-*-msdosdjgpp) |
e9174d1e SL |
289 | # The SPU does not have mmap, but it has a sys/mman.h header file |
290 | # containing "mmap_eaddr" and the mmap flags, confusing the test. | |
9cc50fc6 | 291 | # DJGPP also has sys/man.h, but no mmap |
e9174d1e SL |
292 | have_mmap=no ;; |
293 | esac | |
1a4d82fc JJ |
294 | else |
295 | AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no]) | |
296 | fi | |
297 | fi | |
ea8adc8c XL |
298 | |
299 | case "${host_os}" in | |
300 | darwin*) | |
301 | have_mmap=no ;; | |
302 | esac | |
303 | ||
1a4d82fc JJ |
304 | if test "$have_mmap" = "no"; then |
305 | VIEW_FILE=read.lo | |
306 | ALLOC_FILE=alloc.lo | |
307 | else | |
308 | VIEW_FILE=mmapio.lo | |
309 | AC_PREPROC_IFELSE([ | |
310 | #include <sys/mman.h> | |
311 | #if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON) | |
312 | #error no MAP_ANONYMOUS | |
313 | #endif | |
314 | ], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo]) | |
315 | fi | |
316 | AC_SUBST(VIEW_FILE) | |
317 | AC_SUBST(ALLOC_FILE) | |
318 | ||
319 | BACKTRACE_USES_MALLOC=0 | |
320 | if test "$ALLOC_FILE" = "alloc.lo"; then | |
321 | BACKTRACE_USES_MALLOC=1 | |
322 | fi | |
323 | AC_SUBST(BACKTRACE_USES_MALLOC) | |
324 | ||
325 | # Check for dl_iterate_phdr. | |
326 | AC_CHECK_HEADERS(link.h) | |
327 | if test "$ac_cv_header_link_h" = "no"; then | |
328 | have_dl_iterate_phdr=no | |
329 | else | |
330 | if test -n "${with_target_subdir}"; then | |
331 | # When built as a GCC target library, we can't do a link test. | |
332 | AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes], | |
333 | [have_dl_iterate_phdr=no]) | |
334 | case "${host}" in | |
335 | *-*-solaris2.10*) | |
336 | # Avoid dl_iterate_phdr on Solaris 10, where it is in the | |
337 | # header file but is only in -ldl. | |
338 | have_dl_iterate_phdr=no ;; | |
339 | esac | |
340 | else | |
341 | AC_CHECK_FUNC([dl_iterate_phdr], [have_dl_iterate_phdr=yes], | |
342 | [have_dl_iterate_phdr=no]) | |
343 | fi | |
344 | fi | |
345 | if test "$have_dl_iterate_phdr" = "yes"; then | |
346 | AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.]) | |
347 | fi | |
348 | ||
94b46f34 XL |
349 | # Check for loadquery. |
350 | AC_CHECK_HEADERS(sys/ldr.h) | |
351 | if test "$ac_cv_header_sys_ldr_h" = "no"; then | |
352 | have_loadquery=no | |
353 | else | |
354 | if test -n "${with_target_subdir}"; then | |
355 | # When built as a GCC target library, we can't do a link test. | |
356 | AC_EGREP_HEADER([loadquery], [sys/ldr.h], [have_loadquery=yes], | |
357 | [have_loadquery=no]) | |
358 | else | |
359 | AC_CHECK_FUNC([loadquery], [have_loadquery=yes], | |
360 | [have_loadquery=no]) | |
361 | fi | |
362 | fi | |
363 | if test "$have_loadquery" = "yes"; then | |
364 | AC_DEFINE(HAVE_LOADQUERY, 1, [Define if AIX loadquery is available.]) | |
365 | fi | |
366 | ||
1a4d82fc JJ |
367 | # Check for the fcntl function. |
368 | if test -n "${with_target_subdir}"; then | |
369 | case "${host}" in | |
370 | *-*-mingw*) have_fcntl=no ;; | |
9cc50fc6 | 371 | spu-*-*) have_fcntl=no ;; |
1a4d82fc JJ |
372 | *) have_fcntl=yes ;; |
373 | esac | |
374 | else | |
375 | AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no]) | |
376 | fi | |
377 | if test "$have_fcntl" = "yes"; then | |
378 | AC_DEFINE([HAVE_FCNTL], 1, | |
379 | [Define to 1 if you have the fcntl function]) | |
380 | fi | |
381 | ||
382 | AC_CHECK_DECLS(strnlen) | |
94b46f34 | 383 | AC_CHECK_FUNCS(lstat readlink) |
1a4d82fc JJ |
384 | |
385 | # Check for getexecname function. | |
386 | if test -n "${with_target_subdir}"; then | |
387 | case "${host}" in | |
388 | *-*-solaris2*) have_getexecname=yes ;; | |
389 | *) have_getexecname=no ;; | |
390 | esac | |
391 | else | |
392 | AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no]) | |
393 | fi | |
394 | if test "$have_getexecname" = "yes"; then | |
395 | AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.]) | |
396 | fi | |
397 | ||
94b46f34 XL |
398 | # Check for the clock_gettime function. |
399 | AC_CHECK_FUNCS(clock_gettime) | |
400 | clock_gettime_link= | |
401 | # At least for glibc, clock_gettime is in librt. But don't | |
402 | # pull that in if it still doesn't give us the function we want. This | |
403 | # test is copied from libgomp, and modified to not link in -lrt as | |
404 | # we're using this for test timing only. | |
405 | if test "$ac_cv_func_clock_gettime" = no; then | |
406 | AC_CHECK_LIB(rt, clock_gettime, | |
407 | [CLOCK_GETTIME_LINK=-lrt | |
408 | AC_DEFINE(HAVE_CLOCK_GETTIME, 1, | |
409 | [Define to 1 if you have the `clock_gettime' function.])]) | |
410 | fi | |
411 | AC_SUBST(CLOCK_GETTIME_LINK) | |
412 | ||
413 | dnl Test whether the compiler supports the -pthread option. | |
414 | AC_CACHE_CHECK([whether -pthread is supported], | |
415 | [libgo_cv_lib_pthread], | |
416 | [CFLAGS_hold=$CFLAGS | |
417 | CFLAGS="$CFLAGS -pthread" | |
418 | AC_COMPILE_IFELSE([[int i;]], | |
419 | [libgo_cv_lib_pthread=yes], | |
420 | [libgo_cv_lib_pthread=no]) | |
421 | CFLAGS=$CFLAGS_hold]) | |
422 | PTHREAD_CFLAGS= | |
423 | if test "$libgo_cv_lib_pthread" = yes; then | |
424 | PTHREAD_CFLAGS=-pthread | |
425 | fi | |
426 | AC_SUBST(PTHREAD_CFLAGS) | |
427 | ||
428 | AM_CONDITIONAL(HAVE_PTHREAD, test "$libgo_cv_lib_pthread" = yes) | |
429 | ||
430 | AC_CHECK_LIB([z], [compress], []) | |
431 | if test $ac_cv_lib_z_compress = "yes"; then | |
432 | AC_DEFINE(HAVE_ZLIB, 1, [Define if -lz is available.]) | |
433 | fi | |
434 | AM_CONDITIONAL(HAVE_ZLIB, test "$ac_cv_lib_z_compress" = yes) | |
435 | ||
436 | dnl Test whether the linker supports the --compress_debug_sections option. | |
437 | AC_CACHE_CHECK([whether --compress-debug-sections is supported], | |
438 | [libgo_cv_ld_compress], | |
439 | [LDFLAGS_hold=$LDFLAGS | |
440 | LDFLAGS="$LDFLAGS -Wl,--compress-debug-sections=zlib-gnu" | |
441 | AC_LINK_IFELSE([AC_LANG_PROGRAM(,)], | |
442 | [libgo_cv_ld_compress=yes], | |
443 | [libgo_cv_ld_compress=no]) | |
444 | LDFLAGS=$LDFLAGS_hold]) | |
445 | AM_CONDITIONAL(HAVE_COMPRESSED_DEBUG, test "$libgo_cv_ld_compress" = yes) | |
446 | ||
447 | AC_ARG_VAR(OBJCOPY, [location of objcopy]) | |
448 | AC_CHECK_PROG(OBJCOPY, objcopy, objcopy,) | |
449 | AC_CACHE_CHECK([whether objcopy supports debuglink], | |
450 | [libbacktrace_cv_objcopy_debuglink], | |
451 | [if test -n "${with_target_subdir}"; then | |
452 | libbacktrace_cv_objcopy_debuglink=no | |
453 | elif ${OBJCOPY} --add-gnu-debuglink=x /bin/ls /tmp/ls$$; then | |
454 | rm -f /tmp/ls$$ | |
455 | libbacktrace_cv_objcopy_debuglink=yes | |
456 | else | |
457 | libbacktrace_cv_objcopy_debuglink=no | |
458 | fi]) | |
459 | AM_CONDITIONAL(HAVE_OBJCOPY_DEBUGLINK, test "$libbacktrace_cv_objcopy_debuglink" = yes) | |
460 | ||
1a4d82fc JJ |
461 | AC_CACHE_CHECK([whether tests can run], |
462 | [libbacktrace_cv_sys_native], | |
463 | [AC_RUN_IFELSE([AC_LANG_PROGRAM([], [return 0;])], | |
464 | [libbacktrace_cv_sys_native=yes], | |
465 | [libbacktrace_cv_sys_native=no], | |
466 | [libbacktrace_cv_sys_native=no])]) | |
467 | AM_CONDITIONAL(NATIVE, test "$libbacktrace_cv_sys_native" = "yes") | |
468 | ||
469 | if test "${multilib}" = "yes"; then | |
470 | multilib_arg="--enable-multilib" | |
471 | else | |
472 | multilib_arg= | |
473 | fi | |
474 | ||
475 | AC_CONFIG_FILES(Makefile backtrace-supported.h) | |
476 | ||
477 | # We need multilib support, but only if configuring for the target. | |
478 | AC_CONFIG_COMMANDS([default], | |
479 | [if test -n "$CONFIG_FILES"; then | |
480 | if test -n "${with_target_subdir}"; then | |
481 | # Multilibs need MULTISUBDIR defined correctly in certain makefiles so | |
482 | # that multilib installs will end up installed in the correct place. | |
483 | # The testsuite needs it for multilib-aware ABI baseline files. | |
484 | # To work around this not being passed down from config-ml.in -> | |
485 | # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually | |
486 | # append it here. Only modify Makefiles that have just been created. | |
487 | # | |
488 | # Also, get rid of this simulated-VPATH thing that automake does. | |
489 | cat > vpsed << \_EOF | |
490 | s!`test -f '$<' || echo '$(srcdir)/'`!! | |
491 | _EOF | |
492 | for i in $SUBDIRS; do | |
493 | case $CONFIG_FILES in | |
494 | *${i}/Makefile*) | |
495 | #echo "Adding MULTISUBDIR to $i/Makefile" | |
496 | sed -f vpsed $i/Makefile > tmp | |
497 | grep '^MULTISUBDIR =' Makefile >> tmp | |
498 | mv tmp $i/Makefile | |
499 | ;; | |
500 | esac | |
501 | done | |
502 | rm vpsed | |
503 | fi | |
504 | fi | |
505 | ], | |
506 | [ | |
507 | # Variables needed in config.status (file generation) which aren't already | |
508 | # passed by autoconf. | |
509 | SUBDIRS="$SUBDIRS" | |
510 | ]) | |
511 | ||
512 | AC_OUTPUT |