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