1 dnl Process this file with autoconf to produce a configure script.
3 dnl Copyright (C) 2006-2016 Free Software Foundation, Inc.
5 dnl This file is free software; you can redistribute it and/or modify
6 dnl it under the terms of the GNU General Public License as published by
7 dnl the Free Software Foundation; either version 3 of the License, or
8 dnl (at your option) any later version.
10 dnl This program is distributed in the hope that it will be useful,
11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 dnl GNU General Public License for more details.
15 dnl You should have received a copy of the GNU General Public License
16 dnl along with this program; see the file COPYING3. If not see
17 dnl <http://www.gnu.org/licenses/>.
23 AC_CONFIG_SRCDIR(gold.cc)
27 AM_INIT_AUTOMAKE([no-dist parallel-tests])
29 AM_CONFIG_HEADER(config.h:config.in)
32 AH_VERBATIM([00_CONFIG_H_CHECK],
33 [/* Check that config.h is #included before system headers
34 (this works only for glibc, but that should be enough). */
35 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
36 # error config.h must be #included before system headers
38 #define __CONFIG_H__ 1])
41 [ --with-sysroot[=DIR] search for usr/lib et al within DIR],
42 [sysroot=$withval], [sysroot=no])
44 if test "$sysroot" = "yes"; then
45 sysroot='${exec_prefix}/${target_alias}/sys-root'
46 elif test "$sysroot" = "no"; then
51 if test -n "$sysroot"; then
53 "${prefix}" | "${prefix}/"* | \
54 "${exec_prefix}" | "${exec_prefix}/"* | \
55 '${prefix}' | '${prefix}/'*| \
56 '${exec_prefix}' | '${exec_prefix}/'*)
62 AC_DEFINE_UNQUOTED(TARGET_SYSTEM_ROOT, "$sysroot",
63 [System root for target files])
64 AC_DEFINE_UNQUOTED(TARGET_SYSTEM_ROOT_RELOCATABLE, $sysroot_relocatable,
65 [Whether the system root can be relocated])
67 dnl "install_as_default" is true if the linker to be installed as the
68 dnl default linker, ld.
69 dnl "installed_linker" is the installed gold linker name.
71 installed_linker=ld.gold
73 [[ --enable-gold[=ARG] build gold [ARG={default,yes,no}]]],
74 [case "${enableval}" in
76 install_as_default=yes
79 if test x${enable_ld} = xno; then
80 install_as_default=yes
84 [install_as_default=no])
85 AC_SUBST(install_as_default)
86 AC_SUBST(installed_linker)
88 dnl For now threads are a configure time option.
89 AC_ARG_ENABLE([threads],
90 [ --enable-threads multi-threaded linking],
91 [case "${enableval}" in
92 yes | "") threads=yes ;;
97 if test "$threads" = "yes"; then
98 AC_DEFINE(ENABLE_THREADS, 1,
99 [Define to do multi-threaded linking])
101 AM_CONDITIONAL(THREADS, test "$threads" = "yes")
103 AC_ARG_ENABLE([plugins],
104 [ --enable-plugins linker plugins],
105 [case "${enableval}" in
106 yes | "") plugins=yes ;;
111 if test "$plugins" = "yes"; then
112 AC_DEFINE(ENABLE_PLUGINS, 1,
113 [Define to enable linker plugins])
115 AM_CONDITIONAL(PLUGINS, test "$plugins" = "yes")
117 # Decide if -z relro should be enabled in ELF linker by default.
118 ac_default_ld_z_relro=unset
119 # Provide a configure time option to override our default.
121 AS_HELP_STRING([--enable-relro],
122 [enable -z relro in ELF linker by default]),
123 [case "${enableval}" in
124 yes) ac_default_ld_z_relro=1 ;;
125 no) ac_default_ld_z_relro=0 ;;
127 if test "${ac_default_ld_z_relro}" = unset; then
128 ac_default_ld_z_relro=1
130 AC_DEFINE_UNQUOTED(DEFAULT_LD_Z_RELRO,
131 $ac_default_ld_z_relro,
132 [Define to 1 if you want to enable -z relro in ELF linker by default.])
134 AC_ARG_ENABLE([targets],
135 [ --enable-targets alternative target configurations],
136 [case "${enableval}" in
138 AC_MSG_ERROR([--enable-targets option must specify target names or 'all'])
144 enable_targets=$enableval
147 [# For now, enable all targets by default
151 # Canonicalize the enabled targets.
152 if test -n "$enable_targets"; then
153 for targ in `echo $enable_targets | sed -e 's/,/ /g'`; do
154 result=`$ac_config_sub $targ 2>/dev/null`
155 if test -n "$result"; then
156 canon_targets="$canon_targets $result"
158 # Permit unrecognized target names, like "all".
159 canon_targets="$canon_targets $targ"
164 # See which specific instantiations we need.
170 default_osabi=ELFOSABI_NONE
175 for targ in $target $canon_targets; do
176 if test "$targ" = "all"; then
183 . ${srcdir}/configure.tgt
185 if test "$targ_obj" = "UNKNOWN"; then
186 AC_MSG_ERROR("unsupported target $targ")
188 targetobjs="$targetobjs ${targ_obj}.\$(OBJEXT)"
189 if test "$targ_extra_obj" != ""; then
190 targetobjs="$targetobjs ${targ_extra_obj}.\$(OBJEXT)"
192 if test "$targ_size" = "32" -o "$targ_extra_size" = "32"; then
193 if test "$targ_big_endian" = "true" \
194 -o "$targ_extra_big_endian" = "true"; then
197 if test "$targ_big_endian" = "false" \
198 -o "$targ_extra_big_endian" = "false"; then
202 if test "$targ_size" = "64" -o "$targ_extra_size" = "64"; then
203 if test "$targ_big_endian" = "true" \
204 -o "$targ_extra_big_endian" = "true"; then
207 if test "$targ_big_endian" = "false" \
208 -o "$targ_extra_big_endian" = "false"; then
213 if test "$target" = "$targ"; then
214 default_machine=$targ_machine
215 default_size=$targ_size
216 default_big_endian=$targ_big_endian
217 default_osabi=$targ_osabi
219 AM_CONDITIONAL(DEFAULT_TARGET_AARCH64, test "$targ_obj" = "aarch64")
220 AM_CONDITIONAL(DEFAULT_TARGET_ARM, test "$targ_obj" = "arm")
221 AM_CONDITIONAL(DEFAULT_TARGET_I386, test "$targ_obj" = "i386")
222 AM_CONDITIONAL(DEFAULT_TARGET_POWERPC, test "$targ_obj" = "powerpc")
223 AM_CONDITIONAL(DEFAULT_TARGET_SPARC, test "$targ_obj" = "sparc")
224 AM_CONDITIONAL(DEFAULT_TARGET_S390, test "$targ_obj" = "s390")
227 if test "$targ_obj" = "x86_64"; then
229 x86_64*-linux-gnux32)
238 AM_CONDITIONAL(DEFAULT_TARGET_X86_64, test "$target_x86_64" = "yes")
239 AM_CONDITIONAL(DEFAULT_TARGET_X32, test "$target_x32" = "yes")
240 AM_CONDITIONAL(DEFAULT_TARGET_TILEGX, test "$targ_obj" = "tilegx")
241 AM_CONDITIONAL(DEFAULT_TARGET_MIPS, test "$targ_obj" = "mips")
242 DEFAULT_TARGET=${targ_obj}
243 AC_SUBST(DEFAULT_TARGET)
249 # Remove any duplicates.
251 for t in $targetobjs; do
259 if test -n "$targ_32_little"; then
260 AC_DEFINE(HAVE_TARGET_32_LITTLE, 1,
261 [Define to support 32-bit little-endian targets])
263 if test -n "$targ_32_big"; then
264 AC_DEFINE(HAVE_TARGET_32_BIG, 1,
265 [Define to support 32-bit big-endian targets])
267 if test -n "$targ_64_little"; then
268 AC_DEFINE(HAVE_TARGET_64_LITTLE, 1,
269 [Define to support 64-bit little-endian targets])
271 if test -n "$targ_64_big"; then
272 AC_DEFINE(HAVE_TARGET_64_BIG, 1,
273 [Define to support 64-bit big-endian targets])
276 if test -n "$all_targets"; then
277 TARGETOBJS='$(ALL_TARGETOBJS)'
279 TARGETOBJS="$targetobjs"
283 AC_DEFINE_UNQUOTED(GOLD_DEFAULT_MACHINE, $default_machine,
284 [Default machine code])
285 AC_DEFINE_UNQUOTED(GOLD_DEFAULT_SIZE, $default_size,
286 [Default size (32 or 64)])
287 AC_DEFINE_UNQUOTED(GOLD_DEFAULT_BIG_ENDIAN, $default_big_endian,
288 [Default big endian (true or false)])
289 AC_DEFINE_UNQUOTED(GOLD_DEFAULT_OSABI, $default_osabi,
290 [Default OSABI code])
292 AC_ARG_WITH(lib-path,
293 [ --with-lib-path=dir1:dir2... set default LIB_PATH],
295 yes) LIB_PATH='"/lib:/usr/lib"' ;;
297 *) LIB_PATH='"'"$withval"'"' ;;
299 [LIB_PATH='"::DEFAULT::"'])
300 AC_DEFINE_UNQUOTED(LIB_PATH, $LIB_PATH,
301 [Default library search path])
302 if test "x$target_alias" = "x" -o "x$host_alias" = "x$target_alias"; then
303 AC_DEFINE(NATIVE_LINKER, 1, [Whether configured as a native linker])
306 AC_CHECK_TOOL(NM, nm)
317 ZW_GNU_GETTEXT_SISTER_DIR
324 AM_CONDITIONAL(NATIVE_LINKER,
325 test "x$target_alias" = "x" -o "x$host_alias" = "x$target_alias")
326 AM_CONDITIONAL(GCC, test "$GCC" = yes)
328 AM_CONDITIONAL(NATIVE_OR_CROSS_LINKER,
329 test "x$target_alias" = "x" -o "x$host_alias" = "x$target_alias" -o "x$host_alias" = "x$build_alias")
331 dnl Test for whether static linking is supported. Some systems do not
332 dnl install static libraries. This only affects the set of tests that
334 AC_CACHE_CHECK([whether static linking works], [gold_cv_lib_static],
335 [LDFLAGS_hold=$LDFLAGS
336 LDFLAGS="$LDFLAGS -static"
338 AC_LANG_PROGRAM([[void f() { }]])],
339 [gold_cv_lib_static=yes], [gold_cv_lib_static=no])
340 LDFLAGS=$LDFLAGS_hold])
341 AM_CONDITIONAL(HAVE_STATIC, test "$gold_cv_lib_static" = "yes")
343 dnl Some architectures do not support taking pointers of functions
344 dnl defined in shared libraries except in -fPIC mode. We need to
345 dnl tell the unittest framework if we're compiling for one of those
346 dnl targets, so it doesn't try to run the tests that do that.
347 AM_CONDITIONAL(FN_PTRS_IN_SO_WITHOUT_PIC, [
356 dnl Test for gcc 4.1 or later. Full support for -mcmodel=medium is
357 dnl only available in gcc 4.1.
358 AC_CACHE_CHECK([for gcc >= 4.1], [gold_cv_prog_gcc41],
360 #if !defined __GNUC__
362 #elif __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 1)
365 ], [gold_cv_prog_gcc41=yes], [gold_cv_prog_gcc41=no])])
367 save_CFLAGS="$CFLAGS"
368 CFLAGS="$CFLAGS -mcmodel=medium"
369 AC_COMPILE_IFELSE([int i;], [have_mcmodel_medium=yes], [have_mcmodel_medium=no])
370 CFLAGS="$save_CFLAGS"
371 dnl Whether we can test -mcmodel=medium.
372 AM_CONDITIONAL(MCMODEL_MEDIUM,
373 [test "$target_cpu" = "x86_64" -a "$have_mcmodel_medium" = "yes" -a "$gold_cv_prog_gcc41" = "yes"])
375 AC_CACHE_CHECK([whether $CC supports -fmerge-constants],
376 [gold_cv_merge_constants], [
377 save_CFLAGS="$CFLAGS"
378 CFLAGS="$CFLAGS -fmerge-constants"
379 AC_COMPILE_IFELSE([const char *s = "foo";],
380 [gold_cv_merge_constants=yes],
381 [gold_cv_merge_constants=no])
382 CFLAGS="$save_CFLAGS"])
383 AC_SUBST([MERGE_CONSTANTS_FLAG])
384 AS_IF([test "$gold_cv_merge_constants" = yes],
385 [MERGE_CONSTANTS_FLAG=-fmerge-constants],
386 [MERGE_CONSTANTS_FLAG=])
388 dnl Test for __thread support.
389 AC_CACHE_CHECK([for thread support], [gold_cv_c_thread],
390 [AC_COMPILE_IFELSE([__thread int i = 1;],
391 [gold_cv_c_thread=yes], [gold_cv_c_thread=no])])
393 AM_CONDITIONAL(TLS, test "$gold_cv_c_thread" = "yes")
395 dnl On GNU/Linux TLS in static programs only works when using glibc
397 AC_CACHE_CHECK([for glibc >= 2.4], [gold_cv_lib_glibc24],
399 #include <features.h>
400 #if !defined __GLIBC__
402 #elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 4)
405 ], [gold_cv_lib_glibc24=yes], [gold_cv_lib_glibc24=no])])
407 AM_CONDITIONAL(STATIC_TLS, test "$gold_cv_lib_glibc24" = "yes")
409 dnl Test for #pragma omp threadprivate
410 AC_CACHE_CHECK([for omp support], [gold_cv_c_threadprivate],
411 [save_CFLAGS="$CFLAGS"
412 CFLAGS="$CFLAGS -fopenmp"
416 #pragma omp threadprivate (i)
417 ], [gold_cv_c_threadprivate=yes], [gold_cv_c_threadprivate=no])
418 CFLAGS="$save_CFLAGS"])
419 if test "$gold_cv_c_threadprivate" = "yes"; then
420 AC_DEFINE(HAVE_OMP_SUPPORT, 1,
421 [Define if compiler supports #pragma omp threadprivate])
423 AM_CONDITIONAL(OMP_SUPPORT, test "$gold_cv_c_threadprivate" = "yes")
425 dnl Test for the -ftls-dialect=gnu2 option.
426 dnl Use -Werror in case of compilers that make unknown -m options warnings.
427 dnl They would pass the test here, but fail in actual use when $WARN_CFLAGS
428 dnl gets set later by default Autoconf magic to include -Werror. (We are
429 dnl assuming here that there is no compiler that groks -mtls-dialect=gnu2
430 dnl but does not grok -Werror.)
431 save_CFLAGS="$CFLAGS"
432 CFLAGS="$CFLAGS -Werror -fpic -mtls-dialect=gnu2"
439 ], [have_tls_gnu2=yes], [have_tls_gnu2=no])
440 CFLAGS="$save_CFLAGS"
441 AM_CONDITIONAL(TLS_GNU2_DIALECT, test "$have_tls_gnu2" = "yes")
443 dnl On GNU/Linux TLS descriptors are supported by the dynamic loader
444 dnl only with glibc 2.9 or later.
445 AC_CACHE_CHECK([for glibc >= 2.9], [gold_cv_lib_glibc29],
447 #include <features.h>
448 #if !defined __GLIBC__
450 #elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 9)
453 ], [gold_cv_lib_glibc29=yes], [gold_cv_lib_glibc29=no])])
455 AM_CONDITIONAL(TLS_DESCRIPTORS, test "$gold_cv_lib_glibc29" = "yes")
457 dnl Test for the -frandom-seed option.
458 AC_CACHE_CHECK([for -frandom-seed support], [gold_cv_c_random_seed],
459 [save_CFLAGS="$CFLAGS"
460 CFLAGS="$CFLAGS -frandom-seed=foo"
461 AC_COMPILE_IFELSE([int i;], [gold_cv_c_random_seed=yes],
462 [gold_cv_c_random_seed=no])
463 CFLAGS="$save_CFLAGS"])
464 if test "$gold_cv_c_random_seed" = "yes"; then
465 # In Makefile, '$@' will be expanded to be the name of the file
466 # being built, providing a unique seed for each file.
467 RANDOM_SEED_CFLAGS=-frandom-seed=\$@
469 AC_SUBST(RANDOM_SEED_CFLAGS)
471 dnl On GNU/Linux ifunc is supported by the dynamic linker in glibc
472 dnl 2.11 or later, and by binutils 2.20.1 or later.
473 AC_CACHE_CHECK([for glibc ifunc support], [gold_cv_lib_glibc_ifunc],
474 [save_LDFLAGS="$LDFLAGS"
475 LDFLAGS="$LDFLAGS -static"
476 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
477 #include <features.h>
478 #if !defined __GLIBC__
480 #elif __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 11)
485 __asm__(".type invoke, %gnu_indirect_function");
486 typedef void (*funcptr) (void);
487 funcptr dispatch (void) __asm__ ("invoke");
488 funcptr dispatch (void) { return &func; }]],
491 if ${NM} conftest$EXEEXT | grep "__rela\?_iplt_start" >/dev/null 2>&1; then
492 gold_cv_lib_glibc_ifunc=both
494 gold_cv_lib_glibc_ifunc=dyn
495 fi], [gold_cv_lib_glibc_ifunc=no])
496 LDFLAGS="$save_LDFLAGS"])
498 AM_CONDITIONAL(IFUNC, test "$gold_cv_lib_glibc_ifunc" != "no")
499 AM_CONDITIONAL(IFUNC_STATIC, test "$gold_cv_lib_glibc_ifunc" = "both")
503 WARN_CXXFLAGS=`echo ${WARN_CFLAGS} | sed -e 's/-Wstrict-prototypes//' -e 's/-Wmissing-prototypes//' -e 's/-Wshadow//'`
504 AC_SUBST(WARN_CXXFLAGS)
506 AC_ARG_WITH(gold-ldflags,
507 [ --with-gold-ldflags=FLAGS additional link flags for gold],
508 [if test "$withval" = "no" -o "$withval" = "yes"; then
511 GOLD_LDFLAGS=$withval
514 AC_SUBST(GOLD_LDFLAGS)
516 AC_ARG_WITH(gold-ldadd,
517 [ --with-gold-ldadd=LIBS additional libraries for gold],
518 [if test "$withval" = "no" -o "$withval" = "yes"; then
526 dnl Force support for large files by default. This may need to be
527 dnl host dependent. If build == host, we can check getconf LFS_CFLAGS.
528 LFS_CFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
531 AC_CHECK_HEADERS(sys/mman.h)
532 AC_CHECK_FUNCS(chsize mmap)
533 AC_REPLACE_FUNCS(pread ftruncate ffsll)
535 AC_CACHE_CHECK([mremap with MREMAP_MAYMOVE], [gold_cv_lib_mremap_maymove],
538 #include <sys/mman.h>
539 void f() { mremap (0, 0, 0, MREMAP_MAYMOVE); }
540 ]])], [gold_cv_lib_mremap_maymove=yes], [gold_cv_lib_mremap_maymove=no])])
541 if test "$gold_cv_lib_mremap_maymove" = "yes"; then
542 AC_DEFINE(HAVE_MREMAP, 1,
543 [Define to 1 if you have the mremap function with MREMAP_MAYMOVE support])
548 # Link in zlib if we can. This allows us to write compressed sections.
551 dnl We have to check these in C, not C++, because autoconf generates
552 dnl tests which have no type information, and current glibc provides
553 dnl multiple declarations of functions like basename when compiling
555 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf, strverscmp])
557 dnl Check if gcc supports the -gpubnames option.
558 dnl Use -Werror in case of compilers that make unknown -g options warnings.
559 dnl They would pass the test here, but fail in actual use when $WARN_CFLAGS
560 dnl gets set later by default Autoconf magic to include -Werror. (We are
561 dnl assuming here that there is no compiler that groks -gpubnames
562 dnl but does not grok -Werror.)
563 save_CFLAGS="$CFLAGS"
564 CFLAGS="$CFLAGS -Werror -gpubnames"
565 AC_COMPILE_IFELSE([int i;], [have_pubnames=yes], [have_pubnames=no])
566 CFLAGS="$save_CFLAGS"
567 AM_CONDITIONAL(HAVE_PUBNAMES, test "$have_pubnames" = "yes")
569 dnl Check if gcc supports the -fno-use-linker-plugin option.
570 save_CFLAGS="$CFLAGS"
571 CFLAGS="$CFLAGS -Werror -fno-use-linker-plugin"
572 AC_COMPILE_IFELSE([int i;], [have_no_use_linker_plugin=yes], [have_no_use_linker_plugin=no])
573 CFLAGS="$save_CFLAGS"
574 AM_CONDITIONAL(HAVE_NO_USE_LINKER_PLUGIN, test "$have_no_use_linker_plugin" = "yes")
578 AC_CHECK_HEADERS(unordered_set unordered_map)
579 AC_CHECK_HEADERS(tr1/unordered_set tr1/unordered_map)
580 AC_CHECK_HEADERS(ext/hash_map ext/hash_set)
581 AC_CHECK_HEADERS(byteswap.h)
583 dnl When plugins enabled dynamic loader interface is required. Check headers
584 dnl which may provide this interface. Add the necessary library to link.
585 AC_CHECK_HEADERS(windows.h)
586 AC_CHECK_HEADERS(dlfcn.h)
587 AC_SEARCH_LIBS(dlopen, [dl dld])
588 case "$ac_cv_search_dlopen" in
589 no*) DLOPEN_LIBS="";;
590 *) DLOPEN_LIBS="$ac_cv_search_dlopen";;
592 AC_SUBST(DLOPEN_LIBS)
594 AC_CHECK_FUNCS(mallinfo posix_fallocate fallocate readv sysconf times)
595 AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf, strverscmp, strndup, memmem])
597 # Use of ::std::tr1::unordered_map::rehash causes undefined symbols
598 # at link time with some versions of GCC.
599 AC_CACHE_CHECK([whether ::std::tr1::unordered_map::rehash is usable.],
600 [gold_cv_unordered_map_rehash],
601 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
602 #include <tr1/unordered_map>
603 void bar() { ::std::tr1::unordered_map<int, int> x; x.rehash(10); }
604 ]])], [gold_cv_unordered_map_rehash=yes], [gold_cv_unordered_map_rehash=no])])
605 if test "$gold_cv_unordered_map_rehash" = "yes"; then
606 AC_DEFINE(HAVE_TR1_UNORDERED_MAP_REHASH, 1,
607 [Define if ::std::tr1::unordered_map::rehash is usable])
610 # Use of tr1/unordered_map with off_t as a key is not supported on GCC
611 # 4.1.xx when compiling in 32-bit mode with a 64-bit off_t type.
612 AC_CACHE_CHECK([whether std::tr1::hash<off_t> is defined],
613 [gold_cv_hash_off_t],
614 [CXXFLAGS_hold=$CXXFLAGS
615 CXXFLAGS="$CXXFLAGS $LFS_CFLAGS"
617 #include <sys/types.h>
618 #include <tr1/unordered_map>
619 std::tr1::hash<off_t> h;
621 [gold_cv_hash_off_t=yes],
622 [gold_cv_hash_off_t=no])
623 CXXFLAGS=$CXXFLAGS_hold])
624 if test "$gold_cv_hash_off_t" = "yes"; then
625 AC_DEFINE(HAVE_TR1_HASH_OFF_T, 1,
626 [Define if std::tr1::hash<off_t> is usable])
629 # gcc 4.3.0 doesn't recognize the printf attribute on a template
630 # function. Check for that. This is gcc bug 35546. This test can
631 # probably be removed after the bug has been fixed for a while.
632 AC_CACHE_CHECK([whether we can use attributes with template functions],
633 [gold_cv_template_attribute],
635 template<typename T> extern void foo(const char*, ...)
636 __attribute__ ((__format__ (__printf__, 1, 2)));
637 template<typename T> void foo(const char* format, ...) {}
638 void bar() { foo<int>("%s\n", "foo"); }
639 ], [gold_cv_template_attribute=yes], [gold_cv_template_attribute=no])])
640 if test "$gold_cv_template_attribute" = "yes"; then
641 AC_DEFINE(HAVE_TEMPLATE_ATTRIBUTES, 1,
642 [Define if attributes work on C++ templates])
645 dnl Check if the system has struct stat::st_mtim.
646 AC_CACHE_CHECK([for struct stat::st_mtim.],
647 [gold_cv_stat_st_mtim],
648 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
649 #include <sys/stat.h>
650 long bar() { struct stat s; return (long)(s.st_mtim.tv_sec + s.st_mtim.tv_sec);}
651 ]])], [gold_cv_stat_st_mtim=yes], [gold_cv_stat_st_mtim=no])])
652 if test "$gold_cv_stat_st_mtim" = "yes"; then
653 AC_DEFINE(HAVE_STAT_ST_MTIM, 1,
654 [Define if struct stat has a field st_mtim with timespec for mtime])
659 AC_CHECK_HEADERS(locale.h)
660 AC_CHECK_FUNCS(setlocale)
665 AC_OUTPUT(Makefile testsuite/Makefile po/Makefile.in:po/Make-in)