1 dnl aclocal.m4 generated automatically by aclocal 1.4-p6
3 dnl Copyright (C) 1994, 1995-8, 1999, 2001 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
8 dnl This program is distributed in the hope that it will be useful,
9 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11 dnl PARTICULAR PURPOSE.
14 dnl Initialize basic configure bits, set toplevel_srcdir for Makefiles.
16 dnl GLIBCPP_TOPREL_CONFIGURE
17 AC_DEFUN(GLIBCPP_TOPREL_CONFIGURE, [
18 dnl Default to --enable-multilib (this is also passed by default
19 dnl from the ubercommon-top-level configure)
20 AC_ARG_ENABLE(multilib,
21 [ --enable-multilib build hella library versions (default)],
22 [case "${enableval}" in
25 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
26 esac], [multilib=yes])dnl
28 # When building with srcdir == objdir, links to the source files will
29 # be created in directories within the target_subdir. We have to
30 # adjust toplevel_srcdir accordingly, so that configure finds
31 # install-sh and other auxiliary files that live in the top-level
33 if test "${srcdir}" = "."; then
34 if test -z "${with_target_subdir}"; then
37 if test "${with_target_subdir}" != "."; then
38 toprel="${with_multisrctop}../.."
40 toprel="${with_multisrctop}.."
46 AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
47 toplevel_srcdir=\${top_srcdir}/$toprel
48 AC_SUBST(toplevel_srcdir)
52 dnl Initialize the rest of the library configury.
55 AC_DEFUN(GLIBCPP_CONFIGURE, [
56 # Export build and source directories.
57 # These need to be absolute paths, yet at the same time need to
58 # canonicalize only relative paths, because then amd will not unmount
59 # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
60 glibcpp_builddir=`${PWDCMD-pwd}`
62 [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
63 *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
65 AC_SUBST(glibcpp_builddir)
66 AC_SUBST(glibcpp_srcdir)
68 dnl This is here just to satisfy automake.
69 ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
72 # Will set LN_S to either 'ln -s' or 'ln'. With autoconf 2.5x, can also
73 # be 'cp -p' if linking isn't available. Uncomment the next line to
74 # force a particular method.
75 #ac_cv_prog_LN_S='cp -p'
78 # We use these options to decide which functions to include.
79 AC_ARG_WITH(target-subdir,
80 [ --with-target-subdir=SUBDIR
81 configuring in a subdirectory])
82 AC_ARG_WITH(cross-host,
83 [ --with-cross-host=HOST configuring with a cross compiler])
85 glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3
86 AC_SUBST(glibcpp_basedir)
88 # Never versions of autoconf add an underscore to these functions.
89 # Prevent future problems ...
90 ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
91 ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
92 ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
93 ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
96 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
97 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
98 # are probably using a cross compiler, which will not be able to fully
99 # link an executable. This is addressed in later versions of autoconf.
101 AC_DEFUN(LIB_AC_PROG_CC,
102 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
103 dnl Fool anybody using AC_PROG_CC.
104 AC_PROVIDE([AC_PROG_CC])
105 AC_CHECK_PROG(CC, gcc, gcc)
106 if test -z "$CC"; then
107 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
108 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
113 if test $ac_cv_prog_gcc = yes; then
115 dnl Check whether -g works, even if CFLAGS is set, in case the package
116 dnl plays around with CFLAGS (such as to build both debugging and
117 dnl normal versions of a library), tasteless as that idea is.
118 ac_test_CFLAGS="${CFLAGS+set}"
119 ac_save_CFLAGS="$CFLAGS"
122 if test "$ac_test_CFLAGS" = set; then
123 CFLAGS="$ac_save_CFLAGS"
124 elif test $ac_cv_prog_cc_g = yes; then
131 test "${CFLAGS+set}" = set || CFLAGS="-g"
137 # Likewise for AC_PROG_CXX. We can't just call it directly because g++
138 # will try to link in libstdc++.
139 AC_DEFUN(LIB_AC_PROG_CXX,
140 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
141 dnl Fool anybody using AC_PROG_CXX.
142 AC_PROVIDE([AC_PROG_CXX])
143 # Use glibcpp_CXX so that we do not cause CXX to be cached with the
144 # flags that come in CXX while configuring libstdc++. They're different
145 # from those used for all other target libraries. If CXX is set in
146 # the environment, respect that here.
148 AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
149 AC_SUBST(glibcpp_CXX)
151 test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
155 if test $ac_cv_prog_gxx = yes; then
157 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
158 dnl plays around with CXXFLAGS (such as to build both debugging and
159 dnl normal versions of a library), tasteless as that idea is.
160 ac_test_CXXFLAGS="${CXXFLAGS+set}"
161 ac_save_CXXFLAGS="$CXXFLAGS"
164 if test "$ac_test_CXXFLAGS" = set; then
165 CXXFLAGS="$ac_save_CXXFLAGS"
166 elif test $ac_cv_prog_cxx_g = yes; then
173 test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
179 # For directory versioning (e.g., headers) and other variables.
180 AC_MSG_CHECKING([for GCC version number])
181 gcc_version=`$glibcpp_CXX -dumpversion`
182 AC_MSG_RESULT($gcc_version)
184 # For some reason, gettext needs this.
187 AC_CHECK_TOOL(AS, as)
188 AC_CHECK_TOOL(AR, ar)
189 AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
194 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
195 # at least currently, we never actually build a program, so we never
196 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
197 # fails, because we are probably configuring with a cross compiler
198 # which can't create executables. So we include AC_EXEEXT to keep
199 # automake happy, but we don't execute it, since we don't care about
202 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
203 # to nothing, so nothing would remain between `then' and `fi' if it
204 # were not for the `:' below.
209 case [$]{glibcpp_basedir} in
210 /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
211 *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
214 # Find platform-specific directories containing configuration info. In
215 # addition to possibly modifying the same flags, it also sets up symlinks.
221 dnl Check to see if g++ can compile this library, and if so, if any version-
222 dnl specific precautions need to be taken.
224 dnl GLIBCPP_CHECK_COMPILER_VERSION
225 AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
226 if test ! -f stamp-sanity-compiler; then
227 AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
234 ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above]))
236 AC_MSG_RESULT($gpp_satisfactory)
237 touch stamp-sanity-compiler
243 dnl Tests for newer compiler features, or features that are present in newer
244 dnl compiler versions but not older compiler versions still in use, should
247 dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
248 dnl new inlining code or the new system_header pragma will die on -Werror.
249 dnl Leave it out by default and use maint-mode to use it.
251 dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if
252 dnl compiler supports it and the user has not requested debug mode.
254 dnl GLIBCPP_CHECK_COMPILER_FEATURES
255 AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
256 # All these tests are for C++; save the language and the compiler flags.
257 # The CXXFLAGS thing is suspicious, but based on similar bits previously
258 # found in GLIBCPP_CONFIGURE.
261 ac_test_CXXFLAGS="${CXXFLAGS+set}"
262 ac_save_CXXFLAGS="$CXXFLAGS"
264 # Check for maintainer-mode bits.
265 if test x"$USE_MAINTAINER_MODE" = xno; then
271 # Check for -ffunction-sections -fdata-sections
272 AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
273 CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
274 AC_TRY_COMPILE(, [int foo;
275 ], [ac_fdsections=yes], [ac_fdsections=no])
276 if test "$ac_test_CXXFLAGS" = set; then
277 CXXFLAGS="$ac_save_CXXFLAGS"
279 # this is the suspicious part
282 if test x"$ac_fdsections" = x"yes"; then
283 SECTION_FLAGS='-ffunction-sections -fdata-sections'
285 AC_MSG_RESULT($ac_fdsections)
289 AC_SUBST(SECTION_FLAGS)
294 dnl If GNU ld is in use, check to see if tricky linker opts can be used. If
295 dnl the native linker is in use, all variables will be defined to something
296 dnl safe (like an empty string).
298 dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
299 dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
300 dnl Define LD, with_gnu_ld, and (possibly) glibcpp_gnu_ld_version as
301 dnl side-effects of testing.
303 dnl GLIBCPP_CHECK_LINKER_FEATURES
304 AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
305 # If we're not using GNU ld, then there's no point in even trying these
306 # tests. Check for that first. We should have already tested for gld
307 # by now (in libtool), but require it now just to be safe...
308 test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
309 test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
310 AC_REQUIRE([AC_PROG_LD])
312 # The name set by libtool depends on the version of libtool. Shame on us
313 # for depending on an impl detail, but c'est la vie. Older versions used
314 # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
315 # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
316 # makes sense). We'll test with_gnu_ld everywhere else, so if that isn't
317 # set (hence we're using an older libtool), then set it.
318 if test x${with_gnu_ld+set} != xset; then
319 if test x${ac_cv_prog_gnu_ld+set} != xset; then
320 # We got through "ac_require(ac_prog_ld)" and still not set? Huh?
323 with_gnu_ld=$ac_cv_prog_gnu_ld
327 # Start by getting the version number. I think the libtool test already
328 # does some of this, but throws away the result.
330 ldver=`$LD --version 2>/dev/null | head -1 | \
331 sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
333 glibcpp_gnu_ld_version=`echo $ldver | \
334 $AWK -F. '{ if (NF<3) [$]3=0; print ([$]1*100+[$]2)*100+[$]3 }'`
337 if test "$with_gnu_ld" = "notbroken"; then
338 # GNU ld it is! Joy and bunny rabbits!
340 # All these tests are for C++; save the language and the compiler flags.
341 # Need to do this so that g++ won't try to link in libstdc++
342 ac_test_CFLAGS="${CFLAGS+set}"
343 ac_save_CFLAGS="$CFLAGS"
344 CFLAGS='-x c++ -Wl,--gc-sections'
346 # Check for -Wl,--gc-sections
347 # XXX This test is broken at the moment, as symbols required for
348 # linking are now in libsupc++ (not built yet.....). In addition,
349 # this test has cored on solaris in the past. In addition,
350 # --gc-sections doesn't really work at the moment (keeps on discarding
351 # used sections, first .eh_frame and now some of the glibc sections for
352 # iconv). Bzzzzt. Thanks for playing, maybe next time.
353 AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
361 ], [ac_sectionLDflags=yes],[ac_sectionLDflags=no], [ac_sectionLDflags=yes])
362 if test "$ac_test_CFLAGS" = set; then
363 CFLAGS="$ac_save_CFLAGS"
365 # this is the suspicious part
368 if test "$ac_sectionLDflags" = "yes"; then
369 SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
371 AC_MSG_RESULT($ac_sectionLDflags)
374 # Set linker optimization flags.
375 if test x"$with_gnu_ld" = x"yes"; then
376 OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
379 AC_SUBST(SECTION_LDFLAGS)
380 AC_SUBST(OPT_LDFLAGS)
385 dnl Check to see if the (math function) argument passed is
386 dnl declared when using the c++ compiler
387 dnl ASSUMES argument is a math function with ONE parameter
389 dnl GLIBCPP_CHECK_MATH_DECL_1
390 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [
391 AC_MSG_CHECKING([for $1 declaration])
392 if test x${glibcpp_cv_func_$1_use+set} != xset; then
393 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
396 AC_TRY_COMPILE([#include <math.h>
402 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
406 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
410 dnl Check to see if the (math function) argument passed is
411 dnl 1) declared when using the c++ compiler
412 dnl 2) has "C" linkage
413 dnl 3) if not, see if 1) and 2) for argument prepended with '_'
415 dnl Define HAVE_CARGF etc if "cargf" is declared and links
417 dnl argument 1 is name of function to check
419 dnl ASSUMES argument is a math function with ONE parameter
421 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
422 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
423 GLIBCPP_CHECK_MATH_DECL_1($1)
424 if test x$glibcpp_cv_func_$1_use = x"yes"; then
427 GLIBCPP_CHECK_MATH_DECL_1(_$1)
428 if test x$glibcpp_cv_func__$1_use = x"yes"; then
436 dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of
437 dnl of functions at once. It's an all-or-nothing check -- either
438 dnl HAVE_XYZ is defined for each of the functions, or for none of them.
439 dnl Doing it this way saves significant configure time.
440 AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [
441 AC_MSG_CHECKING([for $1 functions])
442 AC_CACHE_VAL(glibcpp_cv_func_$2_use, [
445 AC_TRY_COMPILE([#include <math.h>],
446 [ `for x in $3; do echo "$x (0);"; done` ],
447 [glibcpp_cv_func_$2_use=yes],
448 [glibcpp_cv_func_$2_use=no])
450 AC_MSG_RESULT($glibcpp_cv_func_$2_use)
451 if test x$glibcpp_cv_func_$2_use = x"yes"; then
457 dnl Check to see if the (math function) argument passed is
458 dnl declared when using the c++ compiler
459 dnl ASSUMES argument is a math function with TWO parameters
461 dnl GLIBCPP_CHECK_MATH_DECL_2
462 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [
463 AC_MSG_CHECKING([for $1 declaration])
464 if test x${glibcpp_cv_func_$1_use+set} != xset; then
465 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
468 AC_TRY_COMPILE([#include <math.h>],
470 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
474 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
478 dnl Check to see if the (math function) argument passed is
479 dnl 1) declared when using the c++ compiler
480 dnl 2) has "C" linkage
482 dnl Define HAVE_CARGF etc if "cargf" is declared and links
484 dnl argument 1 is name of function to check
486 dnl ASSUMES argument is a math function with TWO parameters
488 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
489 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
490 GLIBCPP_CHECK_MATH_DECL_2($1)
491 if test x$glibcpp_cv_func_$1_use = x"yes"; then
494 GLIBCPP_CHECK_MATH_DECL_2(_$1)
495 if test x$glibcpp_cv_func__$1_use = x"yes"; then
503 dnl Check to see if the (math function) argument passed is
504 dnl declared when using the c++ compiler
505 dnl ASSUMES argument is a math function with THREE parameters
507 dnl GLIBCPP_CHECK_MATH_DECL_3
508 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [
509 AC_MSG_CHECKING([for $1 declaration])
510 if test x${glibcpp_cv_func_$1_use+set} != xset; then
511 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
514 AC_TRY_COMPILE([#include <math.h>],
516 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
520 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
524 dnl Check to see if the (math function) argument passed is
525 dnl 1) declared when using the c++ compiler
526 dnl 2) has "C" linkage
528 dnl Define HAVE_CARGF etc if "cargf" is declared and links
530 dnl argument 1 is name of function to check
532 dnl ASSUMES argument is a math function with THREE parameters
534 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
535 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
536 GLIBCPP_CHECK_MATH_DECL_3($1)
537 if test x$glibcpp_cv_func_$1_use = x"yes"; then
540 GLIBCPP_CHECK_MATH_DECL_3(_$1)
541 if test x$glibcpp_cv_func__$1_use = x"yes"; then
549 dnl Check to see if the (stdlib function) argument passed is
550 dnl 1) declared when using the c++ compiler
551 dnl 2) has "C" linkage
553 dnl argument 1 is name of function to check
555 dnl ASSUMES argument is a math function with TWO parameters
557 dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2
558 AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
559 AC_MSG_CHECKING([for $1 declaration])
560 if test x${glibcpp_cv_func_$1_use+set} != xset; then
561 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
564 AC_TRY_COMPILE([#include <stdlib.h>],
566 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
570 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
571 if test x$glibcpp_cv_func_$1_use = x"yes"; then
578 dnl Check to see if the (stdlib function) argument passed is
579 dnl 1) declared when using the c++ compiler
580 dnl 2) has "C" linkage
582 dnl argument 1 is name of function to check
584 dnl ASSUMES argument is a function with THREE parameters
586 dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3
587 AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3, [
588 AC_MSG_CHECKING([for $1 declaration])
589 if test x${glibcpp_cv_func_$1_use+set} != xset; then
590 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
593 AC_TRY_COMPILE([#include <stdlib.h>],
595 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
599 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
600 if test x$glibcpp_cv_func_$1_use = x"yes"; then
606 dnl Because the builtins are picky picky picky about the arguments they take,
607 dnl do an explict linkage tests here.
608 dnl Check to see if the (math function) argument passed is
609 dnl 1) declared when using the c++ compiler
610 dnl 2) has "C" linkage
612 dnl Define HAVE_CARGF etc if "cargf" is declared and links
614 dnl argument 1 is name of function to check
616 dnl ASSUMES argument is a math function with ONE parameter
618 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
619 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
620 AC_MSG_CHECKING([for $1 declaration])
621 if test x${glibcpp_cv_func_$1_use+set} != xset; then
622 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
625 AC_TRY_COMPILE([#include <math.h>],
627 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
631 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
632 if test x$glibcpp_cv_func_$1_use = x"yes"; then
633 AC_MSG_CHECKING([for $1 linkage])
634 if test x${glibcpp_cv_func_$1_link+set} != xset; then
635 AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
636 AC_TRY_LINK([#include <math.h>],
638 [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
641 AC_MSG_RESULT($glibcpp_cv_func_$1_link)
642 if test x$glibcpp_cv_func_$1_link = x"yes"; then
643 ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
644 AC_DEFINE_UNQUOTED(${ac_tr_func})
651 dnl Check to see what builtin math functions are supported
653 dnl check for __builtin_abs
654 dnl check for __builtin_fabsf
655 dnl check for __builtin_fabs
656 dnl check for __builtin_fabl
657 dnl check for __builtin_labs
658 dnl check for __builtin_sqrtf
659 dnl check for __builtin_sqrtl
660 dnl check for __builtin_sqrt
661 dnl check for __builtin_sinf
662 dnl check for __builtin_sin
663 dnl check for __builtin_sinl
664 dnl check for __builtin_cosf
665 dnl check for __builtin_cos
666 dnl check for __builtin_cosl
668 dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
669 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
670 dnl Test for builtin math functions.
671 dnl These are made in gcc/c-common.c
672 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
673 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
674 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
675 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
676 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
678 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
679 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrt)
680 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
682 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
683 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
684 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
686 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
687 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
688 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
690 dnl There is, without a doubt, a more elegant way to have these
691 dnl names exported so that they won't be stripped out of acconfig.h by
692 dnl autoheader. I leave this as an exercise to somebody less frustrated
693 dnl than I.... please email the libstdc++ list if you can figure out a
694 dnl more elegant approach (see autoconf/acgen.m4 and specifically
695 dnl AC_CHECK_FUNC for things to steal.)
697 if test x$dummyvar = x"yes"; then
698 AC_DEFINE(HAVE___BUILTIN_ABS)
699 AC_DEFINE(HAVE___BUILTIN_LABS)
700 AC_DEFINE(HAVE___BUILTIN_COS)
701 AC_DEFINE(HAVE___BUILTIN_COSF)
702 AC_DEFINE(HAVE___BUILTIN_COSL)
703 AC_DEFINE(HAVE___BUILTIN_FABS)
704 AC_DEFINE(HAVE___BUILTIN_FABSF)
705 AC_DEFINE(HAVE___BUILTIN_FABSL)
706 AC_DEFINE(HAVE___BUILTIN_SIN)
707 AC_DEFINE(HAVE___BUILTIN_SINF)
708 AC_DEFINE(HAVE___BUILTIN_SINL)
709 AC_DEFINE(HAVE___BUILTIN_SQRT)
710 AC_DEFINE(HAVE___BUILTIN_SQRTF)
711 AC_DEFINE(HAVE___BUILTIN_SQRTL)
716 dnl Check to see what the underlying c library is like
717 dnl These checks need to do two things:
718 dnl 1) make sure the name is declared when using the c++ compiler
719 dnl 2) make sure the name has "C" linkage
720 dnl This might seem like overkill but experience has shown that it's not...
722 dnl Define HAVE_STRTOLD if "strtold" is declared and links
723 dnl Define HAVE_STRTOF if "strtof" is declared and links
724 dnl Define HAVE_DRAND48 if "drand48" is declared and links
726 dnl GLIBCPP_CHECK_STDLIB_SUPPORT
727 AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
728 ac_test_CXXFLAGS="${CXXFLAGS+set}"
729 ac_save_CXXFLAGS="$CXXFLAGS"
730 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
732 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
733 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)
734 AC_CHECK_FUNCS(drand48)
736 CXXFLAGS="$ac_save_CXXFLAGS"
740 dnl Check to see what the underlying c library or math library is like.
741 dnl These checks need to do two things:
742 dnl 1) make sure the name is declared when using the c++ compiler
743 dnl 2) make sure the name has "C" linkage
744 dnl This might seem like overkill but experience has shown that it's not...
746 dnl Define HAVE_CARGF etc if "cargf" is found.
748 dnl GLIBCPP_CHECK_MATH_SUPPORT
749 AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
750 ac_test_CXXFLAGS="${CXXFLAGS+set}"
751 ac_save_CXXFLAGS="$CXXFLAGS"
752 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
755 AC_CHECK_LIB(m, sin, libm="-lm")
759 dnl Check to see if certain C math functions exist.
760 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
761 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
762 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
763 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
764 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
765 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
766 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
767 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
769 dnl Check to see if basic C math functions have float versions.
770 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
775 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
778 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
779 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
780 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
781 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
782 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
783 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
784 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
785 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
786 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
787 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
788 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
789 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
790 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
791 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
792 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
793 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
795 dnl Check to see if basic C math functions have long double versions.
796 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
801 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
804 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
805 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
806 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
807 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
808 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
809 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
810 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
811 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
812 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
813 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
814 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
815 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
816 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
817 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
818 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
819 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
820 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
822 dnl Some runtimes have these functions with a preceding underscore. Please
823 dnl keep this sync'd with the one above. And if you add any new symbol,
824 dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
825 dnl Check to see if certain C math functions exist.
827 dnl Check to see if basic C math functions have float versions.
828 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
830 _acosf _asinf _atanf \
832 _coshf _sinhf _tanhf)
833 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
837 dnl Check to see if basic C math functions have long double versions.
838 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
840 _acosl _asinl _atanl \
842 _coshl _sinhl _tanhl)
843 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
848 CXXFLAGS="$ac_save_CXXFLAGS"
853 dnl Check to see if there is native support for complex
855 dnl Don't compile bits in math/* if native support exits.
857 dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
859 dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
860 AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
861 dnl Check for complex versions of math functions of platform.
862 AC_CHECK_LIB(m, main)
863 AC_REPLACE_MATHFUNCS(nan copysignf)
865 dnl For __signbit to signbit conversions.
866 AC_CHECK_FUNCS([__signbit], , [LIBMATHOBJS="$LIBMATHOBJS signbit.lo"])
867 AC_CHECK_FUNCS([__signbitf], , [LIBMATHOBJS="$LIBMATHOBJS signbitf.lo"])
869 dnl Compile the long double complex functions only if the function
870 dnl provides the non-complex long double functions that are needed.
871 dnl Currently this includes copysignl, which should be
872 dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
873 if test x$ac_cv_func_copysignl = x"yes"; then
874 AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"])
877 if test -n "$LIBMATHOBJS"; then
880 AC_SUBST(LIBMATHOBJS)
881 AM_CONDITIONAL(GLIBCPP_BUILD_LIBMATH, test "$need_libmath" = yes)
885 dnl Check to see what architecture and operating system we are compiling
886 dnl for. Also, if architecture- or OS-specific flags are required for
887 dnl compilation, pick them up here.
889 dnl GLIBCPP_CHECK_TARGET
890 AC_DEFUN(GLIBCPP_CHECK_TARGET, [
891 . [$]{glibcpp_basedir}/configure.target
892 AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
893 AC_MSG_RESULT(OS config directory is $os_include_dir)
898 dnl Check to see if this target can enable the wchar_t parts of libstdc++.
899 dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
900 dnl must have been previously checked.)
902 dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
903 dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
905 dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
906 AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
907 dnl Wide characters disabled by default.
910 dnl Test wchar.h for mbstate_t, which is needed for char_traits and
911 dnl others even if wchar_t support is not on.
912 AC_MSG_CHECKING([for mbstate_t])
913 AC_TRY_COMPILE([#include <wchar.h>],
914 [mbstate_t teststate;],
915 have_mbstate_t=yes, have_mbstate_t=no)
916 AC_MSG_RESULT($have_mbstate_t)
917 if test x"$have_mbstate_t" = xyes; then
918 AC_DEFINE(HAVE_MBSTATE_T)
921 dnl Sanity check for existence of ISO C99 headers for extended encoding.
922 AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
923 AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
925 dnl Only continue checking if the ISO C99 headers exist and support is on.
926 if test x"$ac_has_wchar_h" = xyes &&
927 test x"$ac_has_wctype_h" = xyes &&
928 test x"$enable_c_mbchar" != xno; then
930 dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
931 dnl numeric_limits can instantiate type_traits<wchar_t>
932 AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
933 AC_TRY_COMPILE([#include <wchar.h>],
934 [int i = WCHAR_MIN; int j = WCHAR_MAX;],
935 has_wchar_minmax=yes, has_wchar_minmax=no)
936 AC_MSG_RESULT($has_wchar_minmax)
938 dnl Test wchar.h for WEOF, which is what we use to determine whether
939 dnl to specialize for char_traits<wchar_t> or not.
940 AC_MSG_CHECKING([for WEOF])
943 #include <stddef.h>],
945 has_weof=yes, has_weof=no)
946 AC_MSG_RESULT($has_weof)
948 dnl Tests for wide character functions used in char_traits<wchar_t>.
950 AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \
953 dnl Checks for names injected into std:: by the c_std headers.
954 AC_CHECK_FUNCS(btowc wctob fgetwc fgetws fputwc fputws fwide \
955 fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
956 vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
957 mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
958 wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
959 wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \
962 AC_MSG_CHECKING([for ISO C99 wchar_t support])
963 if test x"$has_weof" = xyes &&
964 test x"$has_wchar_minmax" = xyes &&
965 test x"$ac_wfuncs" = xyes; then
966 ac_isoC99_wchar_t=yes
970 AC_MSG_RESULT($ac_isoC99_wchar_t)
972 dnl Use iconv for wchar_t to char conversions. As such, check for
973 dnl X/Open Portability Guide, version 2 features (XPG2).
974 AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
975 AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
977 dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
978 AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
980 LIBS="$LIBS $libiconv"
982 AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
983 ac_XPG2funcs=yes, ac_XPG2funcs=no)
987 AC_MSG_CHECKING([for XPG2 wchar_t support])
988 if test x"$ac_has_iconv_h" = xyes &&
989 test x"$ac_has_langinfo_h" = xyes &&
990 test x"$ac_XPG2funcs" = xyes; then
995 AC_MSG_RESULT($ac_XPG2_wchar_t)
997 dnl At the moment, only enable wchar_t specializations if all the
998 dnl above support is present.
999 if test x"$ac_isoC99_wchar_t" = xyes &&
1000 test x"$ac_XPG2_wchar_t" = xyes; then
1001 AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
1005 AC_MSG_CHECKING([for enabled wchar_t specializations])
1006 AC_MSG_RESULT($enable_wchar_t)
1007 AM_CONDITIONAL(GLIBCPP_TEST_WCHAR_T, test "$enable_wchar_t" = yes)
1012 dnl Check to see if debugging libraries are to be built.
1014 dnl GLIBCPP_ENABLE_DEBUG
1017 dnl builds a separate set of debugging libraries in addition to the
1018 dnl normal (shared, static) libstdc++ binaries.
1021 dnl builds only one (non-debug) version of libstdc++.
1023 dnl --enable-debug-flags=FLAGS
1024 dnl iff --enable-debug == yes, then use FLAGS to build the debug library.
1026 dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
1027 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1028 dnl defaults to `no'.
1029 AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
1030 define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
1031 AC_ARG_ENABLE(debug,
1032 changequote(<<, >>)dnl
1033 << --enable-debug build extra debug library [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
1034 changequote([, ])dnl
1035 [case "${enableval}" in
1036 yes) enable_debug=yes ;;
1037 no) enable_debug=no ;;
1038 *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
1040 enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
1041 AC_MSG_CHECKING([for additional debug build])
1042 AC_MSG_RESULT($enable_debug)
1043 AM_CONDITIONAL(GLIBCPP_BUILD_DEBUG, test "$enable_debug" = yes)
1047 dnl Check for explicit debug flags.
1049 dnl GLIBCPP_ENABLE_DEBUG_FLAGS
1051 dnl --enable-debug-flags='-O1'
1052 dnl is a general method for passing flags to be used when
1053 dnl building debug libraries with --enable-debug.
1055 dnl --disable-debug-flags does nothing.
1056 dnl + Usage: GLIBCPP_ENABLE_DEBUG_FLAGS(default flags)
1057 dnl If "default flags" is an empty string (or "none"), the effect is
1058 dnl the same as --disable or --enable=no.
1059 AC_DEFUN(GLIBCPP_ENABLE_DEBUG_FLAGS, [dnl
1060 define([GLIBCPP_ENABLE_DEBUG_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1061 AC_ARG_ENABLE(debug_flags,
1062 changequote(<<, >>)dnl
1063 << --enable-debug-flags=FLAGS pass compiler FLAGS when building debug
1064 library;[default=>>GLIBCPP_ENABLE_DEBUG_FLAGS_DEFAULT],
1065 changequote([, ])dnl
1066 [case "${enableval}" in
1068 -*) enable_debug_flags="${enableval}" ;;
1069 *) AC_MSG_ERROR([Unknown argument to extra debugging flags]) ;;
1071 enable_debug_flags=GLIBCPP_ENABLE_DEBUG_FLAGS_DEFAULT)dnl
1073 dnl Option parsed, now set things appropriately
1074 case x"$enable_debug" in
1076 case "$enable_debug_flags" in
1078 DEBUG_FLAGS="-g3 -O0";;
1080 DEBUG_FLAGS="${enableval}"
1087 AC_SUBST(DEBUG_FLAGS)
1089 AC_MSG_CHECKING([for debug build flags])
1090 AC_MSG_RESULT($DEBUG_FLAGS)
1095 dnl Check for "unusual" flags to pass to the compiler while building.
1097 dnl GLIBCPP_ENABLE_CXX_FLAGS
1098 dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
1099 dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
1100 dnl Somehow this same set of flags must be passed when [re]building
1102 dnl --disable-cxx-flags passes nothing.
1103 dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
1104 dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
1105 dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
1106 dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags)
1107 dnl If "default flags" is an empty string (or "none"), the effect is
1108 dnl the same as --disable or --enable=no.
1109 AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
1110 define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1111 AC_MSG_CHECKING([for extra compiler flags for building])
1112 AC_ARG_ENABLE(cxx_flags,
1113 changequote(<<, >>)dnl
1114 << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
1115 [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
1116 changequote([, ])dnl
1117 [case "x$enable_cxx_flags" in
1119 AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
1121 enable_cxx_flags='' ;;
1123 enable_cxx_flags="$enableval" ;;
1125 enable_cxx_flags=GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT)
1127 dnl Run through flags (either default or command-line) and set anything
1128 dnl extra (e.g., #defines) that must accompany particular g++ options.
1129 if test -n "$enable_cxx_flags"; then
1130 for f in $enable_cxx_flags; do
1134 *) # and we're trying to pass /what/ exactly?
1135 AC_MSG_ERROR([compiler flags start with a -]) ;;
1139 EXTRA_CXX_FLAGS="$enable_cxx_flags"
1140 AC_MSG_RESULT($EXTRA_CXX_FLAGS)
1141 AC_SUBST(EXTRA_CXX_FLAGS)
1146 dnl Check for which locale library to use: gnu or generic.
1148 dnl GLIBCPP_ENABLE_CLOCALE
1149 dnl --enable-clocale=gnu sets config/locale/c_locale_gnu.cc and friends
1150 dnl --enable-clocale=generic sets config/locale/c_locale_generic.cc and friends
1152 dnl default is generic
1154 AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
1155 AC_MSG_CHECKING([for clocale to use])
1156 AC_ARG_ENABLE(clocale,
1157 [ --enable-clocale enable model for target locale package.
1158 --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic]
1160 if test x$enable_clocale = xno; then
1165 enable_clocale_flag=$enable_clocale
1167 dnl Probe for locale support if no specific model is specified.
1168 dnl Default to "generic"
1169 if test x$enable_clocale_flag = xno; then
1170 case x${target_os} in
1172 AC_EGREP_CPP([_GLIBCPP_ok], [
1173 #include <features.h>
1174 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1177 ], enable_clocale_flag=gnu, enable_clocale_flag=generic)
1179 # Test for bugs early in glibc-2.2.x series
1180 if test x$enable_clocale_flag = xgnu; then
1182 #define _GNU_SOURCE 1
1185 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
1186 extern __typeof(newlocale) __newlocale;
1187 extern __typeof(duplocale) __duplocale;
1188 extern __typeof(strcoll_l) __strcoll_l;
1192 const char __one[] = "Äuglein Augmen";
1193 const char __two[] = "Äuglein";
1198 loc = __newlocale(1 << LC_ALL, "de_DE", 0);
1199 loc_dup = __duplocale(loc);
1200 i = __strcoll_l(__one, __two, loc);
1201 j = __strcoll_l(__one, __two, loc_dup);
1205 [enable_clocale_flag=gnu],[enable_clocale_flag=generic],
1206 [enable_clocale_flag=generic])
1209 # ... at some point put __strxfrm_l tests in as well.
1212 enable_clocale_flag=generic
1217 dnl Deal with gettext issues.
1219 [ --enable-nls use Native Language Support (default)],
1223 dnl Set configure bits for specified locale package
1224 case x${enable_clocale_flag} in
1226 AC_MSG_RESULT(generic)
1228 CLOCALE_H=config/locale/generic/c_locale.h
1229 CLOCALE_CC=config/locale/generic/c_locale.cc
1230 CCODECVT_H=config/locale/generic/codecvt_specializations.h
1231 CCODECVT_CC=config/locale/generic/codecvt_members.cc
1232 CCOLLATE_CC=config/locale/generic/collate_members.cc
1233 CCTYPE_CC=config/locale/generic/ctype_members.cc
1234 CMESSAGES_H=config/locale/generic/messages_members.h
1235 CMESSAGES_CC=config/locale/generic/messages_members.cc
1236 CMONEY_CC=config/locale/generic/monetary_members.cc
1237 CNUMERIC_CC=config/locale/generic/numeric_members.cc
1238 CTIME_H=config/locale/generic/time_members.h
1239 CTIME_CC=config/locale/generic/time_members.cc
1240 CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
1245 # Declare intention to use gettext, and add support for specific
1247 # For some reason, ALL_LINGUAS has to be before AM-GNU-GETTEXT
1250 # Don't call AM-GNU-GETTEXT here. Instead, assume glibc.
1251 AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no)
1252 if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
1255 # Export the build objects.
1256 for ling in $ALL_LINGUAS; do \
1257 glibcpp_MOFILES="$glibcpp_MOFILES $ling.mo"; \
1258 glibcpp_POFILES="$glibcpp_POFILES $ling.po"; \
1260 AC_SUBST(glibcpp_MOFILES)
1261 AC_SUBST(glibcpp_POFILES)
1263 CLOCALE_H=config/locale/gnu/c_locale.h
1264 CLOCALE_CC=config/locale/gnu/c_locale.cc
1265 CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
1266 CCODECVT_CC=config/locale/gnu/codecvt_members.cc
1267 CCOLLATE_CC=config/locale/gnu/collate_members.cc
1268 CCTYPE_CC=config/locale/gnu/ctype_members.cc
1269 CMESSAGES_H=config/locale/gnu/messages_members.h
1270 CMESSAGES_CC=config/locale/gnu/messages_members.cc
1271 CMONEY_CC=config/locale/gnu/monetary_members.cc
1272 CNUMERIC_CC=config/locale/gnu/numeric_members.cc
1273 CTIME_H=config/locale/gnu/time_members.h
1274 CTIME_CC=config/locale/gnu/time_members.cc
1275 CLOCALE_INTERNAL_H=config/locale/gnu/c++locale_internal.h
1278 AC_MSG_RESULT(IEEE 1003.1)
1280 CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
1281 CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
1282 CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
1283 CCODECVT_CC=config/locale/generic/codecvt_members.cc
1284 CCOLLATE_CC=config/locale/generic/collate_members.cc
1285 CCTYPE_CC=config/locale/generic/ctype_members.cc
1286 CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h
1287 CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc
1288 CMONEY_CC=config/locale/generic/monetary_members.cc
1289 CNUMERIC_CC=config/locale/generic/numeric_members.cc
1290 CTIME_H=config/locale/generic/time_members.h
1291 CTIME_CC=config/locale/generic/time_members.cc
1292 CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
1295 echo "$enable_clocale is an unknown locale package" 1>&2
1300 # This is where the testsuite looks for locale catalogs, using the
1301 # -DLOCALEDIR define during testsuite compilation.
1302 glibcpp_localedir=${glibcpp_builddir}/po/share/locale
1303 AC_SUBST(glibcpp_localedir)
1305 # A standalone libintl (e.g., GNU libintl) may be in use.
1306 if test $USE_NLS = yes; then
1307 AC_SEARCH_LIBS(gettext, intl,, USE_NLS=no)
1312 AC_SUBST(CCODECVT_H)
1313 AC_SUBST(CMESSAGES_H)
1314 AC_SUBST(CCODECVT_CC)
1315 AC_SUBST(CCOLLATE_CC)
1317 AC_SUBST(CMESSAGES_CC)
1319 AC_SUBST(CNUMERIC_CC)
1322 AC_SUBST(CLOCALE_CC)
1323 AC_SUBST(CLOCALE_INTERNAL_H)
1328 dnl Check for which I/O library to use: libio, or something specific.
1330 dnl GLIBCPP_ENABLE_CSTDIO
1331 dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
1333 dnl default is stdio
1335 AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
1336 AC_MSG_CHECKING([for cstdio to use])
1337 AC_ARG_ENABLE(cstdio,
1338 [ --enable-cstdio enable stdio for target io package.
1339 --enable-cstdio=LIB use LIB target-speific io package. [default=stdio]
1341 if test x$enable_cstdio = xno; then
1344 enable_cstdio=stdio)
1346 enable_cstdio_flag=$enable_cstdio
1348 dnl Check if a valid I/O package
1349 case x${enable_cstdio_flag} in
1351 CSTDIO_H=config/io/c_io_libio.h
1352 BASIC_FILE_H=config/io/basic_file_libio.h
1353 BASIC_FILE_CC=config/io/basic_file_libio.cc
1354 AC_MSG_RESULT(libio)
1356 # see if we are on a system with libio native (ie, linux)
1357 AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
1359 # Need to check and see what version of glibc is being used. If
1360 # it's not glibc-2.2 or higher, then we'll need to go ahead and
1361 # compile most of libio for linux systems.
1362 if test x$has_libio = x"yes"; then
1365 AC_MSG_CHECKING([for glibc version >= 2.2])
1366 AC_EGREP_CPP([ok], [
1367 #include <features.h>
1368 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1371 ], glibc_satisfactory=yes, glibc_satisfactory=no)
1372 AC_MSG_RESULT($glibc_satisfactory)
1376 # XXX at the moment, admit defeat and force the recompilation
1377 # XXX of glibc even on glibc-2.2 systems, because libio is not synched.
1378 glibc_satisfactory=no
1380 if test x$glibc_satisfactory = x"yes"; then
1385 # bkoz XXX need to add checks to enable this
1386 # pme XXX here's a first pass at such a check
1387 if test x$enable_c_mbchar != xno; then
1395 # Using libio, but <libio.h> doesn't exist on the target system. . .
1397 # bkoz XXX need to add checks to enable this
1398 # pme XXX here's a first pass at such a check
1399 if test x$enable_c_mbchar != xno; then
1406 xstdio | x | xno | xnone | xyes)
1408 CSTDIO_H=config/io/c_io_stdio.h
1409 BASIC_FILE_H=config/io/basic_file_stdio.h
1410 BASIC_FILE_CC=config/io/basic_file_stdio.cc
1411 AC_MSG_RESULT(stdio)
1413 # We're not using stdio.
1418 echo "$enable_cstdio is an unknown io package" 1>&2
1423 AC_SUBST(BASIC_FILE_H)
1424 AC_SUBST(BASIC_FILE_CC)
1426 # 2000-08-04 bkoz hack
1427 CCODECVT_C=config/io/c_io_libio_codecvt.c
1428 AC_SUBST(CCODECVT_C)
1429 # 2000-08-04 bkoz hack
1431 AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
1432 test "$need_libio" = yes || test "$need_wlibio" = yes)
1433 AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
1434 AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
1435 if test "$need_libio" = yes || test "$need_wlibio" = yes; then
1436 libio_la=../libio/libio.la
1445 dnl Check to see if building and using a C++ precompiled header can be done.
1447 dnl GLIBCPP_CHECK_PCH
1449 dnl If it looks like it may work, flip bits on in include/Makefile.am
1451 AC_DEFUN(GLIBCPP_CHECK_PCH, [
1452 ac_test_CXXFLAGS="${CXXFLAGS+set}"
1453 ac_save_CXXFLAGS="$CXXFLAGS"
1454 CXXFLAGS='-Werror -Winvalid-pch -Wno-deprecated -x c++-header'
1456 AC_MSG_CHECKING([for compiler that seems to compile .gch files])
1457 if test x${glibcpp_pch_comp+set} != xset; then
1458 AC_CACHE_VAL(glibcpp_pch_comp, [
1461 AC_TRY_COMPILE([#include <math.h>
1464 [glibcpp_pch_comp=yes], [glibcpp_pch_comp=no])
1468 AC_MSG_RESULT([$glibcpp_pch_comp])
1470 CXXFLAGS="$ac_save_CXXFLAGS"
1471 AM_CONDITIONAL(GLIBCPP_BUILD_PCH, test "$glibcpp_pch_comp" = yes)
1475 dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
1476 dnl We must stage the required headers so that they will be installed
1477 dnl with the library (unlike libgcc, the STL implementation is provided
1478 dnl solely within headers). Since we must not inject random user-space
1479 dnl macro names into user-provided C++ code, we first stage into <file>-in
1480 dnl and process to <file> with an output command. The reason for a two-
1481 dnl stage process here is to correctly handle $srcdir!=$objdir without
1482 dnl having to write complex code (the sed commands to clean the macro
1483 dnl namespace are complex and fragile enough as it is). We must also
1484 dnl add a relative path so that -I- is supported properly.
1486 AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
1487 AC_MSG_CHECKING([for thread model used by GCC])
1488 target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
1489 AC_MSG_RESULT([$target_thread_file])
1491 if test $target_thread_file != single; then
1492 AC_DEFINE(HAVE_GTHR_DEFAULT)
1493 AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__)
1496 glibcpp_thread_h=gthr-$target_thread_file.h
1497 AC_SUBST(glibcpp_thread_h)
1502 dnl Check for exception handling support. If an explicit enable/disable
1503 dnl sjlj exceptions is given, we don't have to detect. Otherwise the
1504 dnl target may or may not support call frame exceptions.
1506 dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
1507 dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
1508 dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
1510 dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it.
1512 AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [
1513 AC_MSG_CHECKING([for exception model to use])
1516 AC_ARG_ENABLE(sjlj-exceptions,
1517 [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
1519 [dnl Botheration. Now we've got to detect the exception model.
1520 dnl Link tests against libgcc.a are problematic since -- at least
1521 dnl as of this writing -- we've not been given proper -L bits for
1522 dnl single-tree newlib and libgloss.
1524 dnl This is what AC_TRY_COMPILE would do if it didn't delete the
1525 dnl conftest files before we got a change to grep them first.
1526 cat > conftest.$ac_ext << EOF
1527 [#]line __oline__ "configure"
1536 old_CXXFLAGS="$CXXFLAGS"
1538 if AC_TRY_EVAL(ac_compile); then
1539 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
1540 enable_sjlj_exceptions=yes
1541 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
1542 enable_sjlj_exceptions=no
1545 CXXFLAGS="$old_CXXFLAGS"
1547 if test x$enable_sjlj_exceptions = xyes; then
1548 AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1,
1549 [Define if the compiler is configured for setjmp/longjmp exceptions.])
1550 ac_exception_model_name=sjlj
1551 elif test x$enable_sjlj_exceptions = xno; then
1552 ac_exception_model_name="call frame"
1554 AC_MSG_ERROR([unable to detect exception model])
1557 AC_MSG_RESULT($ac_exception_model_name)
1562 dnl Check for libunwind exception handling support. If enabled then
1563 dnl we assume that the _Unwind_* functions that make up the Unwind ABI
1564 dnl (_Unwind_RaiseException, _Unwind_Resume, etc.) are defined by
1565 dnl libunwind instead of libgcc and that libstdc++ has a dependency
1566 dnl on libunwind as well as libgcc.
1568 dnl GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS
1569 dnl --enable-libunwind-exceptions forces the use of libunwind.
1570 dnl --disable-libunwind-exceptions assumes there is no libunwind.
1572 dnl Define _GLIBCPP_LIBUNWIND_EXCEPTIONS if requested.
1574 AC_DEFUN(GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS, [
1575 AC_MSG_CHECKING([for use of libunwind])
1576 AC_ARG_ENABLE(libunwind-exceptions,
1577 [ --enable-libunwind-exceptions force use of libunwind for exceptions],
1578 use_libunwind_exceptions=$enableval,
1579 use_libunwind_exceptions=no)
1580 AC_MSG_RESULT($use_libunwind_exceptions)
1581 dnl Option parsed, now set things appropriately
1582 if test x"$use_libunwind_exceptions" = xyes; then
1583 LIBUNWIND_FLAG="-lunwind"
1587 AC_SUBST(LIBUNWIND_FLAG)
1591 dnl Check for ISO/IEC 9899:1999 "C99" support.
1593 dnl GLIBCPP_ENABLE_C99
1594 dnl --enable-c99 defines _GLIBCPP_USE_C99
1595 dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined
1596 dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)]
1597 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1598 dnl defaults to `no'.
1599 dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
1601 dnl GLIBCPP_ENABLE_C99
1602 AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl
1603 define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl
1606 changequote(<<, >>)dnl
1607 <<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT],
1608 changequote([, ])dnl
1609 [case "$enableval" in
1610 yes) enable_c99=yes ;;
1611 no) enable_c99=no ;;
1612 *) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
1614 enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl
1619 # Check for the existence of <math.h> functions used if C99 is enabled.
1621 AC_MSG_CHECKING([for ISO C99 support in <math.h>])
1622 AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
1623 AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
1624 AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
1625 AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
1626 AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
1627 AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
1628 AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
1629 AC_TRY_COMPILE([#include <math.h>],
1630 [isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
1631 AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
1632 AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
1633 AC_TRY_COMPILE([#include <math.h>],
1634 [islessgreater(0.0,0.0);],, [ac_c99_math=no])
1635 AC_TRY_COMPILE([#include <math.h>],
1636 [isunordered(0.0,0.0);],, [ac_c99_math=no])
1637 AC_MSG_RESULT($ac_c99_math)
1639 # Check for the existence in <stdio.h> of vscanf, et. al.
1641 AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
1642 AC_TRY_COMPILE([#include <stdio.h>],
1643 [snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
1644 AC_TRY_COMPILE([#include <stdio.h>
1646 void foo(char* fmt, ...)
1647 {va_list args; va_start(args, fmt);
1648 vfscanf(stderr, "%i", args);}],
1649 [],, [ac_c99_stdio=no])
1650 AC_TRY_COMPILE([#include <stdio.h>
1652 void foo(char* fmt, ...)
1653 {va_list args; va_start(args, fmt);
1654 vscanf("%i", args);}],
1655 [],, [ac_c99_stdio=no])
1656 AC_TRY_COMPILE([#include <stdio.h>
1658 void foo(char* fmt, ...)
1659 {va_list args; va_start(args, fmt);
1660 vsnprintf(fmt, 0, "%i", args);}],
1661 [],, [ac_c99_stdio=no])
1662 AC_TRY_COMPILE([#include <stdio.h>
1664 void foo(char* fmt, ...)
1665 {va_list args; va_start(args, fmt);
1666 vsscanf(fmt, "%i", args);}],
1667 [],, [ac_c99_stdio=no])
1668 AC_MSG_RESULT($ac_c99_stdio)
1670 # Check for the existence in <stdlib.h> of lldiv_t, et. al.
1672 AC_MSG_CHECKING([for lldiv_t declaration])
1673 AC_CACHE_VAL(ac_c99_lldiv_t, [
1674 AC_TRY_COMPILE([#include <stdlib.h>],
1676 [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
1678 AC_MSG_RESULT($ac_c99_lldiv_t)
1680 AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
1681 AC_TRY_COMPILE([#include <stdlib.h>],
1682 [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
1683 AC_TRY_COMPILE([#include <stdlib.h>],
1684 [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
1685 AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
1686 AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
1687 AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
1688 AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
1689 if test x"$ac_c99_lldiv_t" = x"no"; then
1692 AC_MSG_RESULT($ac_c99_stdlib)
1694 # Check for the existence of <wchar.h> functions used if C99 is enabled.
1695 # XXX the wchar.h checks should be rolled into the general C99 bits.
1697 AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
1698 AC_TRY_COMPILE([#include <wchar.h>],
1699 [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
1700 AC_TRY_COMPILE([#include <wchar.h>],
1701 [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
1702 AC_TRY_COMPILE([#include <wchar.h>],
1703 [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
1704 AC_MSG_RESULT($ac_c99_wchar)
1706 AC_MSG_CHECKING([for enabled ISO C99 support])
1707 if test x"$ac_c99_math" = x"no" ||
1708 test x"$ac_c99_stdio" = x"no" ||
1709 test x"$ac_c99_stdlib" = x"no" ||
1710 test x"$ac_c99_wchar" = x"no"; then
1713 AC_MSG_RESULT($enable_c99)
1715 # Option parsed, now set things appropriately
1716 if test x"$enable_c99" = x"yes"; then
1717 AC_DEFINE(_GLIBCPP_USE_C99)
1725 dnl Check for template specializations for the 'long long' type extension.
1726 dnl The result determines only whether 'long long' I/O is enabled; things
1727 dnl like numeric_limits<> specializations are always available.
1729 dnl GLIBCPP_ENABLE_LONG_LONG
1730 dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
1731 dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
1732 dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
1733 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1734 dnl defaults to `no'.
1735 dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
1737 dnl GLIBCPP_ENABLE_LONG_LONG
1738 AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
1739 define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
1741 AC_ARG_ENABLE(long-long,
1742 changequote(<<, >>)dnl
1743 <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
1744 changequote([, ])dnl
1745 [case "$enableval" in
1746 yes) enable_long_long=yes ;;
1747 no) enable_long_long=no ;;
1748 *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
1750 enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
1755 AC_MSG_CHECKING([for enabled long long I/O support])
1756 # iostreams require strtoll, strtoull to compile
1757 AC_TRY_COMPILE([#include <stdlib.h>],
1758 [char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
1759 AC_TRY_COMPILE([#include <stdlib.h>],
1760 [char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
1762 # Option parsed, now set things appropriately
1763 if test x"$enable_long_long" = xyes; then
1764 AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
1766 AC_MSG_RESULT($enable_long_long)
1773 dnl Check for what type of C headers to use.
1775 dnl GLIBCPP_ENABLE_CHEADERS
1776 dnl --enable-cheaders= [does stuff].
1777 dnl --disable-cheaders [does not do anything, really].
1778 dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)]
1779 dnl Where DEFAULT is either `c' or `c_std'.
1780 dnl If ommitted, it defaults to `c_std'.
1781 AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
1782 define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
1783 AC_MSG_CHECKING([for c header strategy to use])
1784 AC_ARG_ENABLE(cheaders,
1785 changequote(<<, >>)dnl
1786 << --enable-cheaders=MODEL construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
1788 [case "$enableval" in
1793 enable_cheaders=c_std
1795 *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
1798 enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
1799 AC_MSG_RESULT($enable_cheaders)
1801 dnl Option parsed, now set things appropriately
1802 case "$enable_cheaders" in
1804 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std'
1807 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c'
1811 AC_SUBST(C_INCLUDE_DIR)
1812 AM_CONDITIONAL(GLIBCPP_C_HEADERS_C, test "$enable_cheaders" = c)
1813 AM_CONDITIONAL(GLIBCPP_C_HEADERS_C_STD, test "$enable_cheaders" = c_std)
1814 AM_CONDITIONAL(GLIBCPP_C_HEADERS_COMPATIBILITY, test "$c_compatibility" = yes)
1819 dnl Check for wide character support. Has the same effect as the option
1820 dnl in gcc's configure, but in a form that autoconf can mess with.
1822 dnl GLIBCPP_ENABLE_C_MBCHAR
1823 dnl --enable-c-mbchar requests all the wchar_t stuff.
1824 dnl --disable-c-mbchar doesn't.
1825 dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
1826 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1827 dnl defaults to `no'.
1828 AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
1829 define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
1830 AC_ARG_ENABLE(c-mbchar,
1831 changequote(<<, >>)dnl
1832 << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
1833 changequote([, ])dnl
1834 [case "$enableval" in
1835 yes) enable_c_mbchar=yes ;;
1836 no) enable_c_mbchar=no ;;
1837 *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
1839 enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
1840 dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
1845 dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
1847 dnl TOPLEVEL_INCLUDES
1848 dnl LIBMATH_INCLUDES
1849 dnl LIBSUPCXX_INCLUDES
1852 dnl GLIBCPP_EXPORT_INCLUDES
1853 AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
1854 # Root level of the build directory include sources.
1855 GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include"
1857 # Passed down for canadian crosses.
1858 if test x"$CANADIAN" = xyes; then
1859 TOPLEVEL_INCLUDES='-I$(includedir)'
1862 LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
1864 LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
1866 if test x"$need_libio" = xyes; then
1867 LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
1868 AC_SUBST(LIBIO_INCLUDES)
1871 # Now, export this to all the little Makefiles....
1872 AC_SUBST(GLIBCPP_INCLUDES)
1873 AC_SUBST(TOPLEVEL_INCLUDES)
1874 AC_SUBST(LIBMATH_INCLUDES)
1875 AC_SUBST(LIBSUPCXX_INCLUDES)
1880 dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
1882 AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
1883 # Optimization flags that are probably a good idea for thrill-seekers. Just
1884 # uncomment the lines below and make, everything else is ready to go...
1885 # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
1887 AC_SUBST(OPTIMIZE_CXXFLAGS)
1889 WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings'
1890 AC_SUBST(WARN_FLAGS)
1894 dnl GLIBCPP_EXPORT_INSTALL_INFO
1895 dnl calculates gxx_install_dir
1896 dnl exports glibcpp_toolexecdir
1897 dnl exports glibcpp_toolexeclibdir
1898 dnl exports glibcpp_prefixdir
1900 dnl Assumes cross_compiling bits already done, and with_cross_host in
1903 dnl GLIBCPP_EXPORT_INSTALL_INFO
1904 AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
1905 # Assumes glibcpp_builddir, glibcpp_srcdir are alreay set up and
1906 # exported correctly in GLIBCPP_CONFIGURE.
1907 glibcpp_toolexecdir=no
1908 glibcpp_toolexeclibdir=no
1909 glibcpp_prefixdir=${prefix}
1911 # Process the option --with-gxx-include-dir=<path to include-files directory>
1912 AC_MSG_CHECKING([for --with-gxx-include-dir])
1913 AC_ARG_WITH(gxx-include-dir,
1914 [ --with-gxx-include-dir the installation directory for include files],
1915 [case "${withval}" in
1917 AC_MSG_ERROR(Missing directory for --with-gxx-include-dir)
1924 gxx_include_dir=${withval}
1926 esac], [gxx_include_dir=no])
1927 AC_MSG_RESULT($gxx_include_dir)
1929 # Process the option "--enable-version-specific-runtime-libs"
1930 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
1931 AC_ARG_ENABLE(version-specific-runtime-libs,
1932 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
1933 [case "$enableval" in
1934 yes) version_specific_libs=yes ;;
1935 no) version_specific_libs=no ;;
1936 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
1938 version_specific_libs=no)dnl
1939 # Option set, now we can test it.
1940 AC_MSG_RESULT($version_specific_libs)
1942 # Default case for install directory for include files.
1943 if test $version_specific_libs = no && test $gxx_include_dir = no; then
1944 gxx_include_dir='$(prefix)'/include/c++/${gcc_version}
1947 # Version-specific runtime libs processing.
1948 if test $version_specific_libs = yes; then
1949 # Need the gcc compiler version to know where to install libraries
1950 # and header files if --enable-version-specific-runtime-libs option
1952 if test x"$gxx_include_dir" = x"no"; then
1953 gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/c++
1955 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1956 glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
1959 # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
1960 # Install a library built with a cross compiler in tooldir, not libdir.
1961 if test x"$glibcpp_toolexecdir" = x"no"; then
1962 if test -n "$with_cross_host" &&
1963 test x"$with_cross_host" != x"no"; then
1964 glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
1965 glibcpp_toolexeclibdir='$(toolexecdir)/lib'
1967 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1968 glibcpp_toolexeclibdir='$(libdir)'
1970 multi_os_directory=`$CC -print-multi-os-directory`
1971 case $multi_os_directory in
1972 .) ;; # Avoid trailing /.
1973 *) glibcpp_toolexeclibdir=$glibcpp_toolexeclibdir/$multi_os_directory ;;
1977 AC_MSG_CHECKING([for install location])
1978 AC_MSG_RESULT($gxx_include_dir)
1980 AC_SUBST(glibcpp_prefixdir)
1981 AC_SUBST(gxx_include_dir)
1982 AC_SUBST(glibcpp_toolexecdir)
1983 AC_SUBST(glibcpp_toolexeclibdir)
1987 # Check for functions in math library.
1988 # Ulrich Drepper <drepper@cygnus.com>, 1998.
1990 # This file can be copied and used freely without restrictions. It can
1991 # be used in projects which are not available under the GNU Public License
1992 # but which still want to provide support for the GNU gettext functionality.
1993 # Please note that the actual code is *not* freely available.
1997 dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
1998 AC_DEFUN(AC_REPLACE_MATHFUNCS,
1999 [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])])
2002 dnl This macro searches for a GNU version of make. If a match is found, the
2003 dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
2004 dnl set to "#". This is useful for including a special features in a Makefile,
2005 dnl which cannot be handled by other versions of make. The variable
2006 dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
2007 dnl the empty string otherwise.
2009 dnl Here is an example of its use:
2011 dnl Makefile.in might contain:
2013 dnl # A failsafe way of putting a dependency rule into a makefile
2015 dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
2017 dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
2018 dnl @ifGNUmake@ include $(DEPEND)
2019 dnl @ifGNUmake@ endif
2021 dnl Then configure.in would normally contain:
2023 dnl CHECK_GNU_MAKE()
2024 dnl AC_OUTPUT(Makefile)
2026 dnl Then perhaps to cause gnu make to override any other make, we could do
2027 dnl something like this (note that GNU make always looks for GNUmakefile first):
2029 dnl if ! test x$_cv_gnu_make_command = x ; then
2030 dnl mv Makefile GNUmakefile
2031 dnl echo .DEFAULT: > Makefile ;
2032 dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
2035 dnl Then, if any (well almost any) other make is called, and GNU make also
2036 dnl exists, then the other make wraps the GNU make.
2038 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
2039 dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
2041 dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending
2042 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
2043 dnl #### conditional's subshell (" --version" is not a command), using a
2044 dnl #### different option to grep(1).
2046 dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not
2047 dnl #### ${MAKE:-make}).
2050 GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
2051 _cv_gnu_make_command='' ;
2052 dnl Search all the common names for GNU make
2053 for a in "${MAKE-make}" make gmake gnumake ; do
2054 if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
2056 _cv_gnu_make_command=$a ;
2061 dnl If there was a GNU version, then set @ifGNUmake@ to the empty
2062 dnl string, '#' otherwise
2063 if test "x$_cv_gnu_make_command" != "x" ; then
2072 dnl Check for headers for, and arguments to, the setrlimit() function.
2073 dnl Used only in testsuite_hooks.h.
2074 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [
2075 AC_TRY_COMPILE([#include <unistd.h>
2076 #include <sys/time.h>
2077 #include <sys/resource.h>
2078 ], [ int f = RLIMIT_$1 ; ],
2079 [glibcpp_mresult=1], [glibcpp_mresult=0])
2080 AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult,
2081 [Only used in build directory testsuite_hooks.h.])
2083 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [
2084 setrlimit_have_headers=yes
2085 AC_CHECK_HEADERS(unistd.h sys/time.h sys/resource.h,
2087 setrlimit_have_headers=no)
2088 # If don't have the headers, then we can't run the tests now, and we
2089 # won't be seeing any of these during testsuite compilation.
2090 if test $setrlimit_have_headers = yes; then
2091 # Can't do these in a loop, else the resulting syntax is wrong.
2092 GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA)
2093 GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS)
2094 GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM)
2095 GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS)
2097 # Check for rlimit, setrlimit.
2098 AC_CACHE_VAL(ac_setrlimit, [
2099 AC_TRY_COMPILE([#include <unistd.h>
2100 #include <sys/time.h>
2101 #include <sys/resource.h>
2103 [ struct rlimit r; setrlimit(0, &r);],
2104 [ac_setrlimit=yes], [ac_setrlimit=no])
2108 AC_MSG_CHECKING([for testsuite memory limit support])
2109 if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
2111 AC_DEFINE(_GLIBCPP_MEM_LIMITS)
2115 AC_MSG_RESULT($ac_mem_limits)
2120 dnl Does any necessary configuration of the testsuite directory. Generates
2121 dnl the testsuite_hooks.h header.
2123 dnl GLIBCPP_CONFIGURE_TESTSUITE [no args]
2124 AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [
2125 GLIBCPP_CHECK_SETRLIMIT
2127 # Look for setenv, so that extended locale tests can be performed.
2128 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
2130 # Export file names for ABI checking.
2131 baseline_file="${glibcpp_srcdir}/config/abi/${abi_baseline_triplet}/baseline_symbols.txt"
2132 AC_SUBST(baseline_file)
2135 *-*-cygwin* ) enable_abi_check=no ;;
2136 * ) enable_abi_check=yes ;;
2139 # Don't do ABI checking unless native.
2140 AM_CONDITIONAL(GLIBCPP_BUILD_ABI_CHECK,
2141 test x"$build" = x"$host" && test -z "$with_cross_host" \
2142 && test "$enable_abi_check" = yes )
2146 sinclude(../libtool.m4)
2147 dnl The lines below arrange for aclocal not to bring an installed
2148 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
2149 dnl add a definition of LIBTOOL to Makefile.in.
2150 ifelse(,,,[AC_SUBST(LIBTOOL)
2151 AC_DEFUN([AM_PROG_LIBTOOL])
2152 AC_DEFUN([AC_LIBTOOL_DLOPEN])
2153 AC_DEFUN([AC_PROG_LD])
2157 dnl Check whether S_ISREG (Posix) or S_IFREG is available in <sys/stat.h>.
2160 AC_DEFUN(GLIBCPP_CHECK_S_ISREG_OR_S_IFREG, [
2161 AC_CACHE_VAL(glibcpp_cv_S_ISREG, [
2162 AC_TRY_LINK([#include <sys/stat.h>],
2163 [struct stat buffer; fstat(0, &buffer); S_ISREG(buffer.st_mode); ],
2164 [glibcpp_cv_S_ISREG=yes],
2165 [glibcpp_cv_S_ISREG=no])
2167 AC_CACHE_VAL(glibcpp_cv_S_IFREG, [
2168 AC_TRY_LINK([#include <sys/stat.h>],
2169 [struct stat buffer; fstat(0, &buffer); S_IFREG & buffer.st_mode; ],
2170 [glibcpp_cv_S_IFREG=yes],
2171 [glibcpp_cv_S_IFREG=no])
2173 if test x$glibcpp_cv_S_ISREG = xyes; then
2174 AC_DEFINE(HAVE_S_ISREG)
2175 elif test x$glibcpp_cv_S_IFREG = xyes; then
2176 AC_DEFINE(HAVE_S_IFREG)
2181 dnl Check whether poll is available in <poll.h>.
2184 AC_DEFUN(GLIBCPP_CHECK_POLL, [
2185 AC_CACHE_VAL(glibcpp_cv_POLL, [
2186 AC_TRY_COMPILE([#include <poll.h>],
2187 [struct pollfd pfd[1]; pfd[0].events = POLLIN; poll(pfd, 1, 0); ],
2188 [glibcpp_cv_POLL=yes],
2189 [glibcpp_cv_POLL=no])
2191 if test x$glibcpp_cv_POLL = xyes; then
2192 AC_DEFINE(HAVE_POLL)
2196 # Check whether LC_MESSAGES is available in <locale.h>.
2197 # Ulrich Drepper <drepper@cygnus.com>, 1995.
2199 # This file file be copied and used freely without restrictions. It can
2200 # be used in projects which are not available under the GNU Public License
2201 # but which still want to provide support for the GNU gettext functionality.
2202 # Please note that the actual code is *not* freely available.
2206 AC_DEFUN(AC_LC_MESSAGES, [
2207 AC_CHECK_HEADER(locale.h, [
2208 AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
2209 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
2210 ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
2211 if test $ac_cv_val_LC_MESSAGES = yes; then
2212 AC_DEFINE(HAVE_LC_MESSAGES)
2219 dnl Check for whether the Boost-derived checks should be turned on.
2221 dnl GLIBCPP_ENABLE_CONCEPT_CHECKS
2222 dnl --enable-concept-checks turns them on.
2223 dnl --disable-concept-checks leaves them off.
2224 dnl + Usage: GLIBCPP_ENABLE_CONCEPT_CHECKS[(DEFAULT)]
2225 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
2226 dnl defaults to `no'.
2227 AC_DEFUN(GLIBCPP_ENABLE_CONCEPT_CHECKS, [dnl
2228 define([GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT], ifelse($1, yes, yes, no))dnl
2229 AC_ARG_ENABLE(concept-checks,
2230 changequote(<<, >>)dnl
2231 << --enable-concept-checks use Boost-derived template checks [default=>>GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT],
2232 changequote([, ])dnl
2233 [case "$enableval" in
2234 yes) enable_concept_checks=yes ;;
2235 no) enable_concept_checks=no ;;
2236 *) AC_MSG_ERROR([Unknown argument to enable/disable concept checks]) ;;
2238 enable_concept_checks=GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT)dnl
2239 dnl Option parsed, now set things appropriately
2240 if test x"$enable_concept_checks" = xyes; then
2241 AC_DEFINE(_GLIBCPP_CONCEPT_CHECKS)
2247 dnl Add version tags to symbols in shared library (or not), additionally
2248 dnl marking other symbols as private/local (or not).
2250 dnl GLIBCPP_ENABLE_SYMVERS
2251 dnl --enable-symvers=style adds a version script to the linker call when
2252 dnl creating the shared library. The choice of version script is
2253 dnl controlled by 'style'.
2254 dnl --disable-symvers does not.
2255 dnl + Usage: GLIBCPP_ENABLE_SYMVERS[(DEFAULT)]
2256 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
2257 dnl defaults to `no'. Passing `yes' tries to choose a default style
2258 dnl based on linker characteristics. Passing 'no' disables versioning.
2259 AC_DEFUN(GLIBCPP_ENABLE_SYMVERS, [dnl
2260 define([GLIBCPP_ENABLE_SYMVERS_DEFAULT], ifelse($1, yes, yes, no))dnl
2261 AC_ARG_ENABLE(symvers,
2262 changequote(<<, >>)dnl
2263 << --enable-symvers=style enables symbol versioning of the shared library [default=>>GLIBCPP_ENABLE_SYMVERS_DEFAULT],
2264 changequote([, ])dnl
2265 [case "$enableval" in
2266 yes) enable_symvers=yes ;;
2267 no) enable_symvers=no ;;
2268 # other names here, just as sanity checks
2269 #gnu|sun|etcetera) enable_symvers=$enableval ;;
2270 gnu) enable_symvers=$enableval ;;
2271 *) AC_MSG_ERROR([Unknown argument to enable/disable symvers]) ;;
2273 enable_symvers=GLIBCPP_ENABLE_SYMVERS_DEFAULT)dnl
2275 # If we never went through the GLIBCPP_CHECK_LINKER_FEATURES macro, then we
2276 # don't know enough about $LD to do tricks...
2277 if test x$enable_shared = xno ||
2279 test x$glibcpp_gnu_ld_version = x; then
2283 # Check to see if libgcc_s exists, indicating that shared libgcc is possible.
2284 if test $enable_symvers != no; then
2285 AC_MSG_CHECKING([for shared libgcc])
2286 ac_save_CFLAGS="$CFLAGS"
2288 AC_TRY_LINK(, [return 0], glibcpp_shared_libgcc=yes, glibcpp_shared_libgcc=no)
2289 CFLAGS="$ac_save_CFLAGS"
2290 AC_MSG_RESULT($glibcpp_shared_libgcc)
2293 # For GNU ld, we need at least this version. It's 2.12 in the same format
2294 # as the tested-for version. See GLIBCPP_CHECK_LINKER_FEATURES for more.
2295 glibcpp_min_gnu_ld_version=21200
2297 # Check to see if unspecified "yes" value can win, given results
2299 if test $enable_symvers = yes ; then
2300 if test $with_gnu_ld = yes &&
2301 test $glibcpp_shared_libgcc = yes ;
2303 if test $glibcpp_gnu_ld_version -ge $glibcpp_min_gnu_ld_version ; then
2306 ac_test_CFLAGS="${CFLAGS+set}"
2307 ac_save_CFLAGS="$CFLAGS"
2308 CFLAGS='-shared -Wl,--version-script,conftest.map'
2311 echo 'FOO { global: f[a-z]o; local: *; };' > conftest.map
2313 AC_TRY_LINK([int foo;],, enable_symvers=gnu)
2314 if test "$ac_test_CFLAGS" = set; then
2315 CFLAGS="$ac_save_CFLAGS"
2317 # this is the suspicious part
2328 dnl Everything parsed; figure out what file to use.
2329 case $enable_symvers in
2331 SYMVER_MAP=config/linker-map.dummy
2334 SYMVER_MAP=config/linker-map.gnu
2335 AC_DEFINE(_GLIBCPP_SYMVER)
2339 AC_SUBST(SYMVER_MAP)
2340 AM_CONDITIONAL(GLIBCPP_BUILD_VERSIONED_SHLIB, test $enable_symvers != no)
2341 AC_MSG_CHECKING([versioning on shared library symbols])
2342 AC_MSG_RESULT($enable_symvers)
2346 # isc-posix.m4 serial 2 (gettext-0.11.2)
2347 dnl Copyright (C) 1995-2002 Free Software Foundation, Inc.
2348 dnl This file is free software, distributed under the terms of the GNU
2349 dnl General Public License. As a special exception to the GNU General
2350 dnl Public License, this file may be distributed as part of a program
2351 dnl that contains a configuration script generated by Autoconf, under
2352 dnl the same distribution terms as the rest of that program.
2354 # This file is not needed with autoconf-2.53 and newer. Remove it in 2005.
2356 # This test replaces the one in autoconf.
2357 # Currently this macro should have the same name as the autoconf macro
2358 # because gettext's gettext.m4 (distributed in the automake package)
2359 # still uses it. Otherwise, the use in gettext.m4 makes autoheader
2360 # give these diagnostics:
2361 # configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
2362 # configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
2364 undefine([AC_ISC_POSIX])
2366 AC_DEFUN([AC_ISC_POSIX],
2368 dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
2369 AC_CHECK_LIB(cposix, strerror, [LIBS="$LIBS -lcposix"])
2373 # Add --enable-maintainer-mode option to configure.
2378 AC_DEFUN([AM_MAINTAINER_MODE],
2379 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2380 dnl maintainer-mode is disabled by default
2381 AC_ARG_ENABLE(maintainer-mode,
2382 [ --enable-maintainer-mode enable make rules and dependencies not useful
2383 (and sometimes confusing) to the casual installer],
2384 USE_MAINTAINER_MODE=$enableval,
2385 USE_MAINTAINER_MODE=no)
2386 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2387 AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
2388 MAINT=$MAINTAINER_MODE_TRUE
2393 # Define a conditional.
2395 AC_DEFUN([AM_CONDITIONAL],
2406 # Do all the work for Automake. This macro actually does too much --
2407 # some checks are only needed if your package does certain things.
2408 # But this isn't really a big deal.
2413 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
2415 AC_DEFUN([AM_INIT_AUTOMAKE],
2416 [AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
2417 AC_REQUIRE([AC_PROG_INSTALL])
2422 dnl test to see if srcdir already configured
2423 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
2424 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
2427 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
2428 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
2429 AC_REQUIRE([AM_SANITY_CHECK])
2430 AC_REQUIRE([AC_ARG_PROGRAM])
2431 dnl FIXME This is truly gross.
2432 missing_dir=`cd $ac_aux_dir && pwd`
2433 AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version}, $missing_dir)
2434 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
2435 AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version}, $missing_dir)
2436 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
2437 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
2438 AC_REQUIRE([AC_PROG_MAKE_SET])])
2440 # Copyright 2002 Free Software Foundation, Inc.
2442 # This program is free software; you can redistribute it and/or modify
2443 # it under the terms of the GNU General Public License as published by
2444 # the Free Software Foundation; either version 2, or (at your option)
2445 # any later version.
2447 # This program is distributed in the hope that it will be useful,
2448 # but WITHOUT ANY WARRANTY; without even the implied warranty of
2449 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2450 # GNU General Public License for more details.
2452 # You should have received a copy of the GNU General Public License
2453 # along with this program; if not, write to the Free Software
2454 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
2456 # AM_AUTOMAKE_VERSION(VERSION)
2457 # ----------------------------
2458 # Automake X.Y traces this macro to ensure aclocal.m4 has been
2459 # generated from the m4 files accompanying Automake X.Y.
2460 AC_DEFUN([AM_AUTOMAKE_VERSION],[am__api_version="1.4"])
2462 # AM_SET_CURRENT_AUTOMAKE_VERSION
2463 # -------------------------------
2464 # Call AM_AUTOMAKE_VERSION so it can be traced.
2465 # This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
2466 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
2467 [AM_AUTOMAKE_VERSION([1.4-p6])])
2470 # Check to make sure that the build environment is sane.
2473 AC_DEFUN([AM_SANITY_CHECK],
2474 [AC_MSG_CHECKING([whether build environment is sane])
2477 echo timestamp > conftestfile
2478 # Do `set' in a subshell so we don't clobber the current shell's
2479 # arguments. Must try -L first in case configure is actually a
2480 # symlink; some systems play weird games with the mod time of symlinks
2481 # (eg FreeBSD returns the mod time of the symlink's containing
2484 set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
2485 if test "[$]*" = "X"; then
2487 set X `ls -t $srcdir/configure conftestfile`
2489 if test "[$]*" != "X $srcdir/configure conftestfile" \
2490 && test "[$]*" != "X conftestfile $srcdir/configure"; then
2492 # If neither matched, then we have a broken ls. This can happen
2493 # if, for instance, CONFIG_SHELL is bash and it inherits a
2494 # broken ls alias from the environment. This has actually
2495 # happened. Such a system could not be considered "sane".
2496 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
2497 alias in your environment])
2500 test "[$]2" = conftestfile
2506 AC_MSG_ERROR([newly created file is older than distributed files!
2507 Check your system clock])
2510 AC_MSG_RESULT(yes)])
2512 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
2513 dnl The program must properly implement --version.
2514 AC_DEFUN([AM_MISSING_PROG],
2515 [AC_MSG_CHECKING(for working $2)
2516 # Run test in a subshell; some versions of sh will print an error if
2517 # an executable is not found, even if stderr is redirected.
2518 # Redirect stdin to placate older versions of autoconf. Sigh.
2519 if ($2 --version) < /dev/null > /dev/null 2>&1; then
2521 AC_MSG_RESULT(found)
2524 AC_MSG_RESULT(missing)
2528 # Like AC_CONFIG_HEADER, but automatically create stamp file.
2530 AC_DEFUN([AM_CONFIG_HEADER],
2532 AC_CONFIG_HEADER([$1])
2533 dnl When config.status generates a header, we must update the stamp-h file.
2534 dnl This file resides in the same directory as the config header
2535 dnl that is generated. We must strip everything past the first ":",
2536 dnl and everything past the last "/".
2537 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
2538 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
2539 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
2541 for am_file in <<$1>>; do
2542 case " <<$>>CONFIG_HEADERS " in
2543 *" <<$>>am_file "*<<)>>
2544 echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
2547 am_indx=`expr "<<$>>am_indx" + 1`