1 dnl aclocal.m4 generated automatically by aclocal 1.4
3 dnl Copyright (C) 1994, 1995-8, 1999 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 configure bits.
16 dnl Define OPTLEVEL='-O2' if new inlining code present.
19 AC_DEFUN(GLIBCPP_CONFIGURE, [
20 dnl Default to --enable-multilib
21 AC_ARG_ENABLE(multilib,
22 [ --enable-multilib build hella library versions (default)],
23 [case "${enableval}" in
26 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
27 esac], [multilib=yes])dnl
29 dnl We may get other options which we dont document:
30 dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
31 if test "[$]{srcdir}" = "."; then
32 if test "[$]{with_target_subdir}" != "."; then
33 glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1"
35 glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}$1"
38 glibcpp_basedir="[$]{srcdir}/$1"
40 AC_SUBST(glibcpp_basedir)
42 AM_INIT_AUTOMAKE(libstdc++, 2.90.8)
44 # Never versions of autoconf add an underscore to these functions.
45 # Prevent future problems ...
46 ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
47 ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
48 ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
49 ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
53 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
54 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
55 # are probably using a cross compiler, which will not be able to fully
56 # link an executable. This should really be fixed in autoconf
59 AC_DEFUN(LIB_AC_PROG_CC,
60 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
61 dnl Fool anybody using AC_PROG_CC.
62 AC_PROVIDE([AC_PROG_CC])
63 AC_CHECK_PROG(CC, gcc, gcc)
64 if test -z "$CC"; then
65 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
66 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
71 if test $ac_cv_prog_gcc = yes; then
73 dnl Check whether -g works, even if CFLAGS is set, in case the package
74 dnl plays around with CFLAGS (such as to build both debugging and
75 dnl normal versions of a library), tasteless as that idea is.
76 ac_test_CFLAGS="${CFLAGS+set}"
77 ac_save_CFLAGS="$CFLAGS"
80 if test "$ac_test_CFLAGS" = set; then
81 CFLAGS="$ac_save_CFLAGS"
82 elif test $ac_cv_prog_cc_g = yes; then
89 test "${CFLAGS+set}" = set || CFLAGS="-g"
95 # Can't just call these here as g++ requires libstc++ to be built....
98 # Likewise for AC_PROG_CXX.
99 AC_DEFUN(LIB_AC_PROG_CXX,
100 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
101 dnl Fool anybody using AC_PROG_CXX.
102 AC_PROVIDE([AC_PROG_CXX])
103 # Use CXX_libstdcxx so that we do not cause CXX to be cached with the
104 # flags that come in CXX while configuring libstdc++. They're different
105 # from those used for all other target libraries. If CXX is set in
106 # the environment, respect that here.
108 AC_CHECK_PROGS(CXX_libstdcxx, $CCC c++ g++ gcc CC cxx cc++, gcc)
111 test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
115 if test $ac_cv_prog_gxx = yes; then
117 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
118 dnl plays around with CXXFLAGS (such as to build both debugging and
119 dnl normal versions of a library), tasteless as that idea is.
120 ac_test_CXXFLAGS="${CXXFLAGS+set}"
121 ac_save_CXXFLAGS="$CXXFLAGS"
124 if test "$ac_test_CXXFLAGS" = set; then
125 CXXFLAGS="$ac_save_CXXFLAGS"
126 elif test $ac_cv_prog_cxx_g = yes; then
133 test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
139 AC_CHECK_TOOL(AS, as)
140 AC_CHECK_TOOL(AR, ar)
141 AC_CHECK_TOOL(RANLIB, ranlib, :)
147 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
148 # at least currently, we never actually build a program, so we never
149 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
150 # fails, because we are probably configuring with a cross compiler
151 # which cant create executables. So we include AC_EXEEXT to keep
152 # automake happy, but we dont execute it, since we dont care about
158 # configure.host sets the following important variables
159 # glibcpp_cflags - host specific C compiler flags
160 # glibcpp_cxxflags - host specific C++ compiler flags
164 . [$]{glibcpp_basedir}/configure.host
166 case [$]{glibcpp_basedir} in
167 /* | [A-Za-z]:[/\\]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
168 *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
171 # This does for the target what configure.host does for the host. In
172 # addition to modifying the same flags, it also sets up symlinks.
175 GLIBCPP_CFLAGS="[$]{glibcpp_cflags}"
176 GLIBCPP_CXXFLAGS="[$]{glibcpp_cxxflags}"
177 AC_SUBST(GLIBCPP_CFLAGS)
178 AC_SUBST(GLIBCPP_CXXFLAGS)
183 dnl Check to see if g++ can compile this library, and if so, if any version-
184 dnl specific precautions need to be taken.
186 dnl GLIBCPP_CHECK_COMPILER_VERSION
187 AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
188 if test ! -f stamp-sanity-compiler; then
189 AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
193 #if (__GNUC__ > 2) || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
196 ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to gcc-2.95 or above]))
198 AC_MSG_RESULT($gpp_satisfactory)
199 touch stamp-sanity-compiler
205 dnl Test for newer compiler features, or features that are present in newer
206 dnl compiler version but not older compiler versions should be placed
209 dnl Define WFMT_FLAGS='-fdiagnostics-show-location=once' if possible
211 dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
212 dnl new inlining code or the new system_header pragma will die on -Werror.
213 dnl Leave it out by default and use maint-mode to use it.
215 dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if
216 dnl compiler supports it.
217 dnl GLIBCPP_CHECK_COMPILER_FEATURES
218 AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
219 # All these tests are for C++; save the language and the compiler flags.
220 # The CXXFLAGS thing is suspicious, but based on similar bits
221 # found in GLIBCPP_CONFIGURE.
224 ac_test_CXXFLAGS="${CXXFLAGS+set}"
225 ac_save_CXXFLAGS="$CXXFLAGS"
227 # Check for maintainer-mode bits.
228 if test x"$USE_MAINTAINER_MODE" = xno; then
234 # Check for more sophisticated diagnostic control.
235 AC_MSG_CHECKING([for g++ that supports -fdiagnostics-show-location=once])
236 CXXFLAGS='-Werror -fdiagnostics-show-location=once'
237 AC_TRY_COMPILE(, [int foo;
238 ], [ac_gabydiags=yes], [ac_gabydiags=no])
239 if test "$ac_test_CXXFLAGS" = set; then
240 CXXFLAGS="$ac_save_CXXFLAGS"
242 # this is the suspicious part
245 if test "$ac_gabydiags" = "yes"; then
246 WFMT_FLAGS='-fdiagnostics-show-location=once'
248 AC_MSG_RESULT($ac_gabydiags)
250 # Check for -ffunction-sections -fdata-sections
251 AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
252 CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
253 AC_TRY_COMPILE(, [int foo;
254 ], [ac_fdsections=yes], [ac_fdsections=no])
255 if test "$ac_test_CXXFLAGS" = set; then
256 CXXFLAGS="$ac_save_CXXFLAGS"
258 # this is the suspicious part
261 if test "$ac_fdsections" = "yes"; then
262 SECTION_FLAGS='-ffunction-sections -fdata-sections'
264 AC_MSG_RESULT($ac_fdsections)
269 AC_SUBST(SECTION_FLAGS)
274 dnl If GNU ld is in use, check to see if tricky linker opts can be used. If
275 dnl the native linker is in use, all variables will be defined to something
276 dnl safe (like an empty string).
278 dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
279 dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
281 dnl GLIBCPP_CHECK_LINKER_FEATURES
282 AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
283 # If we're not using GNU ld, then there's no point in even trying these
284 # tests. Check for that first. We should have already tested for gld
285 # by now (in libtool), but require it now just to be safe...
288 AC_REQUIRE([AC_PROG_LD])
291 if test "$ac_cv_prog_gnu_ld" = "notbroken"; then
292 # GNU ld it is! Joy and bunny rabbits!
294 # All these tests are for C++; save the language and the compiler flags.
295 # Need to do this so that g++ won't try to link in libstdc++
296 ac_test_CFLAGS="${CFLAGS+set}"
297 ac_save_CFLAGS="$CFLAGS"
298 CFLAGS='-x c++ -Wl,--gc-sections'
300 # Check for -Wl,--gc-sections
301 # XXX This test is broken at the moment, as symbols required for
302 # linking are now in libsupc++ (not built yet.....). In addition,
303 # this test has cored on solaris in the past. In addition,
304 # --gc-sections doesn't really work at the moment (keeps on discarding
305 # used sections, first .eh_frame and now some of the glibc sections for
306 # iconv). Bzzzzt. Thanks for playing, maybe next time.
307 AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
315 ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes])
316 if test "$ac_test_CFLAGS" = set; then
317 CFLAGS="$ac_save_CFLAGS"
319 # this is the suspicious part
322 if test "$ac_sectionLDflags" = "yes"; then
323 SECTION_LDFLAGS='-Wl,--gc-sections'
325 AC_MSG_RESULT($ac_sectionLDflags)
328 # Set linker optimization flags.
329 if test "$ac_cv_prog_gnu_ld" = "yes"; then
330 OPT_LDFLAGS='-Wl,-O1'
333 AC_SUBST(SECTION_LDFLAGS)
334 AC_SUBST(OPT_LDFLAGS)
339 dnl Check to see if the (math function) argument passed is
340 dnl 1) declared when using the c++ compiler
341 dnl 2) has "C" linkage
343 dnl Define HAVE_CARGF etc if "cargf" is declared and links
345 dnl argument 1 is name of function to check
347 dnl ASSUMES argument is a math function with ONE parameter
349 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
350 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
351 AC_MSG_CHECKING([for $1 declaration])
352 if test x${glibcpp_cv_func_$1_use+set} != xset; then
353 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
356 AC_TRY_COMPILE([#include <math.h>],
358 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
362 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
363 if test x$glibcpp_cv_func_$1_use = x"yes"; then
370 dnl Check to see if the (math function) argument passed is
371 dnl 1) declared when using the c++ compiler
372 dnl 2) has "C" linkage
374 dnl Define HAVE_CARGF etc if "cargf" is declared and links
376 dnl argument 1 is name of function to check
378 dnl ASSUMES argument is a math function with TWO parameters
380 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
381 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
382 AC_MSG_CHECKING([for $1 declaration])
383 if test x${glibcpp_cv_func_$1_use+set} != xset; then
384 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
387 AC_TRY_COMPILE([#include <math.h>],
389 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
393 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
394 if test x$glibcpp_cv_func_$1_use = x"yes"; then
401 dnl Check to see if the (math function) argument passed is
402 dnl 1) declared when using the c++ compiler
403 dnl 2) has "C" linkage
405 dnl Define HAVE_CARGF etc if "cargf" is declared and links
407 dnl argument 1 is name of function to check
409 dnl ASSUMES argument is a math function with THREE parameters
411 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
412 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
413 AC_MSG_CHECKING([for $1 declaration])
414 if test x${glibcpp_cv_func_$1_use+set} != xset; then
415 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
418 AC_TRY_COMPILE([#include <math.h>],
420 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
424 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
425 if test x$glibcpp_cv_func_$1_use = x"yes"; then
432 dnl Check to see if the (stdlib function) argument passed is
433 dnl 1) declared when using the c++ compiler
434 dnl 2) has "C" linkage
436 dnl Define HAVE_STRTOLD if "strtold" is declared and links
437 dnl Define HAVE_STRTOF if "strtof" is declared and links
439 dnl argument 1 is name of function to check
441 dnl ASSUMES argument is a math function with TWO parameters
443 dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2
444 AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
445 AC_MSG_CHECKING([for $1 declaration])
446 if test x${glibcpp_cv_func_$1_use+set} != xset; then
447 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
450 AC_TRY_COMPILE([#include <stdlib.h>],
452 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
456 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
457 if test x$glibcpp_cv_func_$1_use = x"yes"; then
464 dnl Because the builtins are picky picky picky about the arguments they take,
465 dnl do an explict linkage tests here.
466 dnl Check to see if the (math function) argument passed is
467 dnl 1) declared when using the c++ compiler
468 dnl 2) has "C" linkage
470 dnl Define HAVE_CARGF etc if "cargf" is declared and links
472 dnl argument 1 is name of function to check
474 dnl ASSUMES argument is a math function with ONE parameter
476 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
477 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
478 AC_MSG_CHECKING([for $1 declaration])
479 if test x${glibcpp_cv_func_$1_use+set} != xset; then
480 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
483 AC_TRY_COMPILE([#include <math.h>],
485 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
489 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
490 if test x$glibcpp_cv_func_$1_use = x"yes"; then
491 AC_MSG_CHECKING([for $1 linkage])
492 if test x${glibcpp_cv_func_$1_link+set} != xset; then
493 AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
494 AC_TRY_LINK([#include <math.h>],
496 [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
499 AC_MSG_RESULT($glibcpp_cv_func_$1_link)
500 if test x$glibcpp_cv_func_$1_link = x"yes"; then
501 ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
502 AC_DEFINE_UNQUOTED(${ac_tr_func})
509 dnl Check to see what builtin math functions are supported
511 dnl check for __builtin_abs
512 dnl check for __builtin_fabsf
513 dnl check for __builtin_fabs
514 dnl check for __builtin_fabl
515 dnl check for __builtin_labs
516 dnl check for __builtin_sqrtf
517 dnl check for __builtin_sqrtl
518 dnl check for __builtin_fsqrt
519 dnl check for __builtin_sinf
520 dnl check for __builtin_sin
521 dnl check for __builtin_sinl
522 dnl check for __builtin_cosf
523 dnl check for __builtin_cos
524 dnl check for __builtin_cosl
526 dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
527 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
528 dnl Test for builtin math functions.
529 dnl These are made in gcc/c-common.c
530 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
531 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
532 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
533 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
534 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
536 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
537 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt)
538 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
540 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
541 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
542 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
544 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
545 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
546 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
548 dnl There is, without a doubt, a more elegant way to have these
549 dnl names exported so that they won't be stripped out of acconfig.h by
550 dnl autoheader. I leave this as an exercise to somebody less frustrated
551 dnl than I.... please email the libstdc++ list if you can figure out a
552 dnl more elegant approach (see autoconf/acgen.m4 and specifically
553 dnl AC_CHECK_FUNC for things to steal.)
555 if test x$dummyvar = x"yes"; then
556 AC_DEFINE(HAVE___BUILTIN_ABS)
557 AC_DEFINE(HAVE___BUILTIN_LABS)
558 AC_DEFINE(HAVE___BUILTIN_COS)
559 AC_DEFINE(HAVE___BUILTIN_COSF)
560 AC_DEFINE(HAVE___BUILTIN_COSL)
561 AC_DEFINE(HAVE___BUILTIN_FABS)
562 AC_DEFINE(HAVE___BUILTIN_FABSF)
563 AC_DEFINE(HAVE___BUILTIN_FABSL)
564 AC_DEFINE(HAVE___BUILTIN_SIN)
565 AC_DEFINE(HAVE___BUILTIN_SINF)
566 AC_DEFINE(HAVE___BUILTIN_SINL)
567 AC_DEFINE(HAVE___BUILTIN_FSQRT)
568 AC_DEFINE(HAVE___BUILTIN_SQRTF)
569 AC_DEFINE(HAVE___BUILTIN_SQRTL)
575 dnl Check to see what the underlying c library
576 dnl These checks need to do two things:
577 dnl 1) make sure the name is declared when using the c++ compiler
578 dnl 2) make sure the name has "C" linkage
579 dnl This might seem like overkill but experience has shown that it's not...
581 dnl Define HAVE_STRTOF etc if "strtof" is found.
582 dnl Define HAVE_STRTOLD etc if "strtold" is found.
584 dnl GLIBCPP_CHECK_STDLIB_SUPPORT
585 AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
586 ac_test_CXXFLAGS="${CXXFLAGS+set}"
587 ac_save_CXXFLAGS="$CXXFLAGS"
588 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
590 AC_CHECK_FUNCS(strtof)
591 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
593 CXXFLAGS="$ac_save_CXXFLAGS"
598 dnl Check to see what the underlying c library or math library is like.
599 dnl These checks need to do two things:
600 dnl 1) make sure the name is declared when using the c++ compiler
601 dnl 2) make sure the name has "C" linkage
602 dnl This might seem like overkill but experience has shown that it's not...
604 dnl Define HAVE_CARGF etc if "cargf" is found.
606 dnl GLIBCPP_CHECK_MATH_SUPPORT
607 AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
608 ac_test_CXXFLAGS="${CXXFLAGS+set}"
609 ac_save_CXXFLAGS="$CXXFLAGS"
610 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
613 AC_CHECK_LIB(m, sin, libm="-lm")
617 dnl Check to see if certain C math functions exist.
618 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
619 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
620 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
621 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
622 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
623 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
624 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
626 dnl Check to see if basic C math functions have float versions.
627 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
628 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
629 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignf)
630 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(acosf)
631 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(asinf)
632 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(atanf)
633 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
634 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(ceilf)
635 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(cosf)
636 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(coshf)
637 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
638 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
639 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(floorf)
640 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
641 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
642 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
643 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
644 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
645 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
646 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
647 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinf)
648 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinhf)
649 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
650 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanf)
651 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanhf)
652 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
653 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
655 dnl Check to see if basic C math functions have long double versions.
656 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
657 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
658 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
659 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(acosl)
660 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(asinl)
661 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(atanl)
662 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
663 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(ceill)
664 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(cosl)
665 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(coshl)
666 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
667 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
668 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(floorl)
669 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
670 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
671 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
672 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
673 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
674 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
675 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
676 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinl)
677 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinhl)
678 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
679 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanl)
680 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanhl)
681 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
682 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
684 dnl Some runtimes have these functions with a preceding underscore. Please
685 dnl keep this sync'd with the one above. And if you add any new symbol,
686 dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
687 dnl Check to see if certain C math functions exist.
688 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinf)
689 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnan)
690 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finite)
691 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_copysign)
692 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincos)
693 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fpclass)
694 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_qfpclass)
696 dnl Check to see if basic C math functions have float versions.
697 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnanf)
698 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinff)
699 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_copysignf)
700 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_acosf)
701 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_asinf)
702 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_atanf)
703 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_atan2f)
704 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_ceilf)
705 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_cosf)
706 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_coshf)
707 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_expf)
708 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fabsf)
709 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_floorf)
710 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_fmodf)
711 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_frexpf)
712 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_ldexpf)
713 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_logf)
714 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_log10f)
715 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_modff)
716 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_powf)
717 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinf)
718 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinhf)
719 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sqrtf)
720 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanf)
721 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanhf)
722 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincosf)
723 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finitef)
725 dnl Check to see if basic C math functions have long double versions.
726 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnanl)
727 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinfl)
728 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_copysignl)
729 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_acosl)
730 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_asinl)
731 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_atanl)
732 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_atan2l)
733 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_ceill)
734 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_cosl)
735 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_coshl)
736 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_expl)
737 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fabsl)
738 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_floorl)
739 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_fmodl)
740 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_frexpl)
741 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_ldexpl)
742 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_logl)
743 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_log10l)
744 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_modfl)
745 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_powl)
746 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinl)
747 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinhl)
748 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sqrtl)
749 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanl)
750 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanhl)
751 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincosl)
752 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finitel)
755 CXXFLAGS="$ac_save_CXXFLAGS"
760 dnl Check to see if there is native support for complex
762 dnl Don't compile bits in math/* if native support exits.
764 dnl Define USE_COMPLEX_LONG_DOUBLE etc if "atan2l/copysignl" is found.
766 dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
767 AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
768 dnl Check for complex versions of math functions of platform.
769 AC_CHECK_HEADERS([complex.h])
770 AC_CHECK_LIB(m, main)
771 AC_REPLACE_MATHFUNCS(csqrt csqrtf nan hypot hypotf)
773 dnl Compile the long double complex functions only if the function
774 dnl provides the non-complex long double functions that are needed.
775 dnl Currently this includes copysignl and atan2l, which should be
776 dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
777 USE_COMPLEX_LONG_DOUBLE=no
778 if test x$ac_cv_func_atan2l = x"yes" \
779 && test x$ac_cv_func_copysignl = x"yes"; then
780 USE_COMPLEX_LONG_DOUBLE=yes
781 AC_REPLACE_MATHFUNCS(csqrtl hypotl signbitl)
784 AC_SUBST(USE_COMPLEX_LONG_DOUBLE)
788 dnl Check to see what architecture and operating system we are compiling
789 dnl for. Also, if architecture- or OS-specific flags are required for
790 dnl compilation, pick them up here.
792 dnl GLIBCPP_CHECK_TARGET
793 AC_DEFUN(GLIBCPP_CHECK_TARGET, [
794 . [$]{glibcpp_basedir}/configure.target
795 AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
796 AC_MSG_RESULT(OS config directory is $os_include_dir)
797 AC_LINK_FILES($os_include_dir/bits/os_defines.h, include/bits/os_defines.h)
802 dnl Check to see what the underlying c library's interface to ctype looks
803 dnl like. Bits of locale rely on things like isspace, toupper, etc. This
804 dnl stuff makes sure the right bits from the clibrary get called.
806 dnl Depending on what is found, select various configure/*/bits/ctype_base.h
807 dnl Depending on what is found, select various configure/*/ctype.cc
809 dnl GLIBCPP_CHECK_CTYPE_SUPPORT
810 AC_DEFUN(GLIBCPP_CHECK_CTYPE_SUPPORT, [
811 AC_CHECK_HEADER(ctype.h, [
813 dnl If doesn't match any specified, go with defaults.
816 dnl Test for <ctype> functionality -- GNU/Linux
817 AC_MSG_CHECKING([<ctype> for GNU/Linux])
818 AC_TRY_COMPILE([#include <ctype.h>],
821 { return _ISspace + _ISprint + _IScntrl + _ISupper + _ISlower + _ISalpha \
822 + _ISdigit + _ISpunct + _ISxdigit + _ISalnum + _ISgraph \
823 + __ctype_tolower[a] + __ctype_toupper[a] + __ctype_b[a];}], \
824 ctype_linux=yes, ctype_linux=no)
825 AC_MSG_RESULT($ctype_linux)
826 if test $ctype_linux = "yes"; then
827 ctype_include_dir="config/os/gnu-linux"
831 dnl Test for <ctype> functionality -- FreeBSD 4.0
832 if test $ctype_default = "yes"; then
833 AC_MSG_CHECKING([<ctype> for FreeBSD 4.0])
834 AC_TRY_COMPILE([#include <ctype.h>],
837 { return _CTYPE_S + _CTYPE_R + _CTYPE_C + _CTYPE_U + _CTYPE_L + _CTYPE_A \
838 + _CTYPE_D + _CTYPE_P + _CTYPE_X + _CTYPE_G ;}], \
839 ctype_bsd=yes, ctype_bsd=no)
840 AC_MSG_RESULT($ctype_bsd)
841 if test $ctype_bsd = "yes"; then
842 ctype_include_dir="config/os/bsd/freebsd"
847 dnl Test for <ctype> functionality -- FreeBSD 3.4
848 if test $ctype_default = "yes"; then
849 AC_MSG_CHECKING([<ctype> for FreeBSD 3.4])
850 AC_TRY_COMPILE([#include <ctype.h>],
853 { return _S + _R + _C + _U + _L + _A \
854 + _D + _P + _X + _G + __istype (a, 0);}], \
855 ctype_freebsd34=yes, ctype_freebsd34=no)
856 AC_MSG_RESULT($ctype_freebsd34)
857 if test $ctype_freebsd34 = "yes"; then
858 ctype_include_dir="config/os/bsd/freebsd"
863 dnl Test for <ctype> functionality -- NetBSD
864 if test $ctype_default = "yes"; then
865 AC_MSG_CHECKING([<ctype> for NetBSD])
866 AC_TRY_COMPILE([#include <ctype.h>],
869 { return _S + _C + _U + _L \
870 + _N + _P + _X + _tolower_tab_[a] + _toupper_tab_[a];}], \
871 ctype_netbsd=yes, ctype_netbsd=no)
872 AC_MSG_RESULT($ctype_netbsd)
873 if test $ctype_netbsd = "yes"; then
874 ctype_include_dir="config/os/bsd/netbsd"
879 dnl Test for <ctype> functionality -- Solaris 2.6 and up
880 if test $ctype_default = "yes"; then
881 AC_MSG_CHECKING([<ctype> for Solaris 2.6,7,8])
882 AC_TRY_COMPILE([#include <ctype.h>],
885 { return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \
886 + _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \
887 + __trans_lower[a] + __trans_upper[a] + __ctype_mask[a];}], \
888 ctype_solaris=yes, ctype_solaris=no)
889 AC_MSG_RESULT($ctype_solaris)
891 if test $ctype_solaris = "yes"; then
892 AC_MSG_CHECKING([ for version])
894 AC_TRY_COMPILE([#include <ctype.h>],
895 [typedef long* __to_type; __to_type const& _M_toupper = __trans_upper;],\
896 ctype_solaris26=yes, ctype_solaris26=no)
898 if test $ctype_solaris26 = "yes"; then
899 ctype_include_dir="config/os/solaris/solaris2.6"
900 AC_MSG_RESULT([Solaris 2.6])
903 ctype_include_dir="config/os/solaris/solaris2.7"
904 AC_MSG_RESULT([Solaris 7,8])
910 dnl Test for <ctype> functionality -- Solaris 2.5.1
911 if test $ctype_default = "yes"; then
912 AC_MSG_CHECKING([<ctype> for Solaris 2.5.1])
913 AC_TRY_COMPILE([#include <ctype.h>],
916 { return _U + _L + _N + _S + _P + _C + _X + _B \
918 ctype_solaris25=yes, ctype_solaris25=no)
919 AC_MSG_RESULT($ctype_solaris25)
920 if test $ctype_solaris25 = "yes"; then
921 ctype_include_dir="config/os/solaris/solaris2.5"
926 dnl Test for <ctype> functionality -- AIX
927 if test $ctype_default = "yes"; then
928 AC_MSG_CHECKING([<ctype> for AIX])
929 AC_TRY_COMPILE([#include <ctype.h>],
932 { return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \
933 + _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \
934 + _VALC('a') + _IS('c', 0);}], \
935 ctype_aix=yes, ctype_aix=no)
936 AC_MSG_RESULT($ctype_aix)
937 if test $ctype_aix = "yes"; then
938 ctype_include_dir="config/os/aix"
943 dnl Test for <ctype> functionality -- IRIX
944 if test $ctype_default = "yes"; then
945 AC_MSG_CHECKING([<ctype> for IRIX])
946 AC_TRY_COMPILE([#include <ctype.h>],
949 { return _U + _L + _N + _S + _P + _C + _B + _X + \
950 _A + _PR + _G + _BL;}], \
951 ctype_irix=yes, ctype_irix=no)
952 AC_MSG_RESULT($ctype_irix)
953 if test $ctype_irix = "yes"; then
954 ctype_include_dir="config/os/irix"
959 dnl Test for <ctype> functionality -- newlib
960 if test $ctype_default = "yes"; then
961 AC_MSG_CHECKING([<ctype> for newlib])
962 AC_TRY_COMPILE([#include <ctype.h>],
965 { return _U + _L + _N + _S + _P + _C + _X + _B \
967 ctype_newlib=yes, ctype_newlib=no)
968 AC_MSG_RESULT($ctype_newlib)
969 if test $ctype_newlib = "yes"; then
970 ctype_include_dir="config/os/newlib"
975 if test $ctype_default = "yes"; then
976 ctype_include_dir="config/os/generic"
977 AC_MSG_WARN("Using default ctype headers.")
984 dnl Check to see if this target can enable the wchar_t parts of libstdc++.
985 dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
986 dnl must have been previously checked.)
988 dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
989 dnl Define _GLIBCPP_NEED_MBSTATE_T if mbstate_t is not in wchar.h
991 dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
992 AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
993 if test x$enable_c_mbchar != xno; then
995 dnl Sanity check for existence of ISO C99 headers for extended encoding.
996 AC_CHECK_HEADER(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
997 AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
999 dnl Only continue checking if the ISO C99 headers exist.
1000 if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes; then
1002 dnl Test wchar.h for mbstate_t, which is needed for char_traits
1004 AC_MSG_CHECKING([for mbstate_t])
1005 AC_TRY_COMPILE([#include <wchar.h>],
1006 [mbstate_t teststate;],
1007 use_native_mbstatet=yes, use_native_mbstatet=no)
1008 AC_MSG_RESULT($use_native_mbstatet)
1010 dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
1011 dnl numeric_limits can instantiate type_traits<wchar_t>
1012 AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
1013 AC_TRY_COMPILE([#include <wchar.h>],
1014 [int i = WCHAR_MIN; int j = WCHAR_MAX;],
1015 has_wchar_minmax=yes, has_wchar_minmax=no)
1016 AC_MSG_RESULT($has_wchar_minmax)
1018 dnl Test wchar.h for WEOF, which is what we use to determine whether
1019 dnl to specialize for char_traits<wchar_t> or not.
1020 AC_MSG_CHECKING([for WEOF])
1023 #include <stddef.h>],
1025 has_weof=yes, has_weof=no)
1026 AC_MSG_RESULT($has_weof)
1028 dnl Tests for wide character functions used in char_traits<wchar_t>.
1029 AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset \
1030 wcsrtombs mbsrtowcs, ac_wfuncs=yes, ac_wfuncs=no)
1032 AC_MSG_CHECKING([for ISO C99 wchar_t support])
1033 if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes \
1034 && test x"$ac_wfuncs" = xyes; then
1035 ac_isoC99_wchar_t=yes
1037 ac_isoC99_wchar_t=no
1039 AC_MSG_RESULT($ac_isoC99_wchar_t)
1041 dnl Use iconv for wchar_t to char conversions. As such, check for
1042 dnl X/Open Portability Guide, version 2 features (XPG2).
1043 AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
1044 AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
1046 dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
1047 AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
1048 ac_save_LIBS="$LIBS"
1049 LIBS="$LIBS $libiconv"
1051 AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
1052 ac_XPG2funcs=yes, ac_XPG2funcs=no)
1054 LIBS="$ac_save_LIBS"
1056 AC_MSG_CHECKING([for XPG2 wchar_t support])
1057 if test x"$ac_has_iconv_h" = xyes && test x"$ac_has_langinfo_h" = xyes \
1058 && test x"$ac_XPG2funcs" = xyes; then
1063 AC_MSG_RESULT($ac_XPG2_wchar_t)
1065 dnl At the moment, only enable wchar_t specializations if all the
1066 dnl above support is present.
1067 AC_MSG_CHECKING([for enabled wchar_t specializations])
1068 if test x"$ac_isoC99_wchar_t" = xyes \
1069 && test x"$ac_XPG2_wchar_t" = xyes; then
1070 libinst_wstring_la="libinst-wstring.la"
1071 AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
1072 AC_MSG_RESULT("yes")
1074 libinst_wstring_la=""
1077 AC_SUBST(libinst_wstring_la)
1080 AC_MSG_WARN([<wchar.h> not found])
1084 dnl Wide characters disabled by the user. Maybe print a warning?
1091 dnl Check to see if this version of GNU C++ is afflicted by bugs in
1092 dnl __complex__ float support.
1094 dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy.
1096 dnl Check to see if this version of GNU C++ is afflicted by bugs in
1097 dnl __complex__ support.Check for buggy __complex__ that will cause ICE in
1098 dnl gcc-2.95.x when using the library, unless we define the default copy
1099 dnl ctor in the specializations of complex<>.
1101 dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy.
1102 dnl GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT
1103 AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT, [
1104 AC_REQUIRE([AC_PROG_CXX])
1106 AC_MSG_CHECKING([for GNU C++ __complex__ support])
1107 AC_CACHE_VAL(glibcpp_cv_complex, [
1110 AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \
1111 dcomplex f(const dcomplex& x) { return dcomplex(x); }], \
1112 [ dcomplex x; f(x); ],
1113 glibcpp_cv_complex=ok,
1114 glibcpp_cv_complex=buggy
1118 AC_MSG_RESULT($glibcpp_cv_complex)
1119 if test $glibcpp_cv_complex = buggy; then
1120 AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX)
1123 AC_MSG_CHECKING([for GNU C++ __complex__ float support])
1124 AC_CACHE_VAL(glibcpp_cv_float_complex, [
1128 cat > conftest.h <<EOB
1130 // Check for buggy __complex__ that causes ICE in most versions of egcs
1131 // and gcc-2.95.x on certain platforms (eg., x86-win32).
1133 // See http://gcc.gnu.org/ml/gcc-bugs/1999-07n/msg00845.html for
1134 // more info on the bug itself.
1139 __complex__ float m_value;
1140 float_complex (float = 0.0f, float = 0.0f);
1141 float_complex (__complex__ float val) : m_value (val) {}
1142 float_complex foo (const float_complex &val)
1143 { return float_complex (~val.m_value); }
1146 AC_TRY_COMPILE([#include "conftest.h"], ,
1147 glibcpp_cv_float_complex=ok,
1148 glibcpp_cv_float_complex=buggy
1152 AC_MSG_RESULT($glibcpp_cv_float_complex)
1153 if test $glibcpp_cv_float_complex = buggy; then
1154 AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX)
1160 dnl Check for special debugging mode; not for production use.
1162 dnl GLIBCPP_ENABLE_DEBUG
1163 dnl --enable-debug sets '-ggdb3 -O0'.
1164 dnl --disable-debug sets '-g' and whatever optimization options the
1165 dnl compiler can handle.
1166 dnl + --enable-maintainer-mode automatically defaults this to on.
1167 dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...?
1168 dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
1169 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1170 dnl defaults to `no'.
1171 AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
1172 define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
1173 AC_ARG_ENABLE(debug,
1174 changequote(<<, >>)dnl
1175 << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
1176 changequote([, ])dnl
1177 [case "${enableval}" in
1178 yes) enable_debug=yes ;;
1179 no) enable_debug=no ;;
1180 *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
1182 enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
1184 dnl Option parsed, now set things appropriately
1185 case "${enable_debug}" in
1187 DEBUG_FLAGS='-O0 -ggdb3'
1193 AC_SUBST(DEBUG_FLAGS)
1198 dnl Check for "unusual" flags to pass to the compiler while building.
1200 dnl GLIBCPP_ENABLE_CXX_FLAGS
1201 dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
1202 dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
1203 dnl Somehow this same set of flags must be passed when [re]building
1205 dnl --disable-cxx-flags passes nothing.
1206 dnl + See http://sourceware.cygnus.com/ml/libstdc++/2000-q2/msg00131.html
1207 dnl http://sourceware.cygnus.com/ml/libstdc++/2000-q2/msg00284.html
1208 dnl http://sourceware.cygnus.com/ml/libstdc++/2000-q1/msg00035.html
1209 dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags)
1210 dnl If "default flags" is an empty string (or "none"), the effect is
1211 dnl the same as --disable or --enable=no.
1212 AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
1213 define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1214 AC_ARG_ENABLE(cxx-flags,
1215 changequote(<<, >>)dnl
1216 << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
1217 [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
1218 changequote([, ])dnl
1219 [case "x$enableval" in
1221 AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
1223 enable_cxx_flags='' ;;
1225 enable_cxx_flags="$enableval" ;;
1227 enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT')
1229 dnl Thinko on my part during design. This kludge is the workaround.
1230 if test "$enable_cxx_flags" = "none"; then
1231 enable_cxx_flags='';
1234 dnl Run through flags (either default or command-line) and set anything
1235 dnl extra (e.g., #defines) that must accompany particular g++ options.
1236 if test -n "$enable_cxx_flags"; then
1237 for f in $enable_cxx_flags; do
1241 *) # and we're trying to pass /what/ exactly?
1242 AC_MSG_ERROR([compiler flags start with a -]) ;;
1246 EXTRA_CXX_FLAGS="$enable_cxx_flags"
1247 AC_SUBST(EXTRA_CXX_FLAGS)
1252 dnl Check for which I/O library to use: libio, or something specific.
1254 dnl GLIBCPP_ENABLE_CSTDIO
1255 dnl --enable-cstdio=libio sets config/c_io_libio.h and friends
1257 dnl default is stdio
1259 AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
1260 AC_MSG_CHECKING([for cstdio to use])
1261 AC_ARG_ENABLE(cstdio,
1262 [ --enable-cstdio enable stdio for target io package. (default)
1263 --enable-cstdio=LIB use LIB target-speific io package.],
1264 if test x$enable_cstdio = xno; then
1267 enable_cstdio=stdio)
1269 enable_cstdio_flag=$enable_cstdio
1271 dnl Check if a valid I/O package
1272 case x${enable_cstdio_flag} in
1274 CSTDIO_H=config/c_io_libio.h
1275 CSTDIO_CC=config/c_io_libio.cc
1276 AC_MSG_RESULT(libio)
1278 # see if we are on a system with libio native (ie, linux)
1279 AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
1281 # Need to check and see what version of glibc is being used. If
1282 # it's not glibc-2.2 or higher, then we'll need to go ahead and
1283 # compile most of libio for linux systems.
1284 if test x$has_libio = x"yes"; then
1287 AC_MSG_CHECKING([for glibc version >= 2.2])
1288 AC_EGREP_CPP([ok], [
1289 #include <features.h>
1290 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1293 ], glibc_satisfactory=yes, glibc_satisfactory=no)
1294 AC_MSG_RESULT($glibc_satisfactory)
1298 # XXX at the moment, admit defeat and force the recompilation
1299 # XXX of glibc even on glibc-2.2 systems, because libio is not synched.
1300 glibc_satisfactory=no
1302 if test x$glibc_satisfactory = x"yes"; then
1307 # bkoz XXX need to add checks to enable this
1308 # pme XXX here's a first pass at such a check
1309 if test x$enable_c_mbchar != xno; then
1317 # Using libio, but <libio.h> doesn't exist on the target system. . .
1319 # bkoz XXX need to add checks to enable this
1320 # pme XXX here's a first pass at such a check
1321 if test x$enable_c_mbchar != xno; then
1328 xstdio | x | xno | xnone | xyes)
1330 CSTDIO_H=config/c_io_stdio.h
1331 CSTDIO_CC=config/c_io_stdio.cc
1332 AC_MSG_RESULT(stdio)
1334 # We're not using stdio.
1337 # Wide characters are not supported with this package.
1341 echo "$enable_cstdio is an unknown io package" 1>&2
1345 AC_LINK_FILES($CSTDIO_H, include/bits/c++io.h)
1346 AC_LINK_FILES($CSTDIO_CC, src/c++io.cc)
1348 # 2000-08-04 bkoz hack
1349 CCODECVT_C=config/c_io_libio_codecvt.c
1350 AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c)
1351 # 2000-08-04 bkoz hack
1353 AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
1354 test "$need_libio" = yes || test "$need_wlibio" = yes)
1355 AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
1356 AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
1357 if test "$need_libio" = yes || test "$need_wlibio" = yes; then
1358 libio_la=../libio/libio.la
1367 dnl Check for which threading library to use.
1369 dnl GLIBCPP_ENABLE_THREADS
1370 dnl --enable-threads=posix sets config/threads-posix.h et. al.
1372 dnl Default is no threads, which also disables _IO_MTSAFE_IO in
1373 dnl libio. Any actual thread package will enable it.
1375 AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
1376 dnl Note this comes from the gcc/config.in and libjava/config.in
1377 dnl Efforts should be made to keep this in sync.
1378 AC_MSG_CHECKING([for threads package to use])
1379 AC_ARG_ENABLE(threads,
1380 [ --enable-threads enable thread usage for target GCC.
1381 --enable-threads=LIB use LIB thread package for target GCC.],
1382 if test x$enable_threads = xno; then
1387 enable_threads_flag=$enable_threads
1389 dnl Check if a valid thread package
1390 case x${enable_threads_flag} in
1393 target_thread_file='single'
1397 target_thread_file='posix'
1399 xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
1400 xsolaris | xwin32 | xdce | xvxworks)
1401 target_thread_file=$enable_threads_flag
1404 echo "$enable_threads is an unknown thread package" 1>&2
1409 dnl Check for thread package actually supported in libstdc++
1411 case "$target_thread_file" in
1413 THREADH=threads-no.h
1416 THREADH=threads-posix.h
1418 decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
1419 AC_MSG_ERROR(thread package $THREADS not yet supported)
1422 AC_MSG_ERROR($THREADS is an unsupported/unknown thread package)
1425 AC_MSG_RESULT($THREADH)
1427 AC_LINK_FILES(config/$THREADH, include/bits/c++threads.h)
1428 if test $THREADH != threads-no.h; then
1429 AC_DEFINE(_GLIBCPP_USE_THREADS)
1434 dnl Enable atomic locking
1435 dnl GLIBCPP_ENABLE_ATOMICITY
1436 AC_DEFUN(GLIBCPP_ENABLE_ATOMICITY, [
1437 AC_MSG_CHECKING([for atomicity.h])
1438 # We have ATOMICITY already from GLIBCPP_CONFIGURE
1439 if test "$ATOMICITYH" = "config/cpu/generic"; then
1440 AC_MSG_WARN([No ATOMICITY settings found, using generic atomic ops.])
1442 AC_MSG_RESULT($ATOMICITYH/bits/atomicity.h)
1443 AC_LINK_FILES($ATOMICITYH/bits/atomicity.h, include/bits/atomicity.h)
1448 dnl Check for template specializations for the 'long long' type extension.
1450 dnl GLIBCPP_ENABLE_LONG_LONG
1451 dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
1452 dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
1453 dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
1454 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1455 dnl defaults to `no'.
1456 dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
1458 dnl GLIBCPP_ENABLE_LONG_LONG
1459 AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
1460 define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
1462 AC_ARG_ENABLE(long-long,
1463 changequote(<<, >>)dnl
1464 <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
1465 changequote([, ])dnl
1466 [case "$enableval" in
1467 yes) enable_long_long=yes ;;
1468 no) enable_long_long=no ;;
1469 *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
1471 enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
1473 # Allow use of os-dependent settings, so that macros that turn on
1474 # C99 capabilities can be defined and used in a consistent way.
1475 OS_INC_PATH=${srcdir}/$os_include_dir
1476 ac_test_CFLAGS="${CFLAGS+set}"
1477 ac_save_CFLAGS="$CFLAGS"
1478 CFLAGS="-I$OS_INC_PATH"
1480 # Check for the existence of functions used if long long is enabled.
1481 AC_CHECK_FUNC(strtoll,,ac_strtoll=no)
1482 AC_CHECK_FUNC(strtoull,,ac_strtoull=no)
1484 # Check for lldiv_t, et. al.
1485 AC_MSG_CHECKING([for lldiv_t declaration])
1486 AC_CACHE_VAL(glibcpp_lldiv_t_use, [
1487 AC_TRY_COMPILE([#include <bits/os_defines.h>
1488 #include <stdlib.h>],
1490 [glibcpp_lldiv_t_use=yes], [glibcpp_lldiv_t_use=no])
1492 AC_MSG_RESULT($glibcpp_lldiv_t_use)
1493 if test x$glibcpp_lldiv_t_use = x"yes"; then
1494 AC_DEFINE(HAVE_LLDIV_T)
1497 AC_MSG_CHECKING([for enabled long long])
1498 if test x"$ac_strtoll" = xno || test x"$ac_strtoull" = xno; then
1499 enable_long_long=no;
1501 AC_MSG_RESULT($enable_long_long)
1503 # Option parsed, now set things appropriately
1504 if test x"$enable_long_long" = xyes; then
1505 AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
1509 CFLAGS="$ac_save_CFLAGS"
1514 dnl Check for whether or not to do shadowed C headers.
1516 dnl GLIBCPP_ENABLE_SHADOW
1517 dnl --enable-cshadow-headers [does stuff].
1518 dnl --disable-cshadow-headers [does not do stuff].
1519 dnl + This will eventually need to be on by default.
1520 dnl + Usage: GLIBCPP_ENABLE_SHADOW[(DEFAULT)]
1521 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1522 dnl defaults to `no'.
1523 AC_DEFUN(GLIBCPP_ENABLE_SHADOW, [dnl
1524 define([GLIBCPP_ENABLE_SHADOW_DEFAULT], ifelse($1, yes, yes, no))dnl
1525 AC_MSG_CHECKING([for enabled cshadow headers])
1526 AC_ARG_ENABLE(cshadow-headers,
1527 changequote(<<, >>)dnl
1528 << --enable-cshadow-headers construct "shadowed" C header files for
1529 g++ [default=>>GLIBCPP_ENABLE_SHADOW_DEFAULT],
1531 [case "$enableval" in
1532 yes) enable_cshadow_headers=yes
1534 no) enable_cshadow_headers=no
1536 *) AC_MSG_ERROR([Unknown argument to enable/disable shadowed C headers])
1539 enable_cshadow_headers=GLIBCPP_ENABLE_SHADOW_DEFAULT)
1540 AC_MSG_RESULT($enable_cshadow_headers)
1542 dnl Option parsed, now set things appropriately
1543 dnl NB: these things may be duplicated in c++config.h as well.
1544 case "$enable_cshadow_headers" in
1546 CSHADOW_FLAGS="-fno-builtin"
1547 C_INCLUDE_DIR='${top_srcdir}/include/c_std'
1548 AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS)
1552 C_INCLUDE_DIR='${top_srcdir}/include/c'
1556 AC_SUBST(CSHADOW_FLAGS)
1557 AC_SUBST(C_INCLUDE_DIR)
1558 AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cshadow_headers" = yes)
1563 dnl Check for wide character support. Has the same effect as the option
1564 dnl in gcc's configure, but in a form that autoconf can mess with.
1566 dnl GLIBCPP_ENABLE_C_MBCHAR
1567 dnl --enable-c-mbchar requests all the wchar_t stuff.
1568 dnl --disable-c-mbchar doesn't.
1569 dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
1570 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1571 dnl defaults to `no'.
1572 AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
1573 define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
1574 AC_ARG_ENABLE(c-mbchar,
1575 changequote(<<, >>)dnl
1576 << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
1577 changequote([, ])dnl
1578 [case "$enableval" in
1579 yes) enable_c_mbchar=yes ;;
1580 no) enable_c_mbchar=no ;;
1581 *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
1583 enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
1584 dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
1589 dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
1591 dnl GLIBCPP_INCLUDE_DIR
1593 dnl TOPLEVEL_INCLUDES
1594 dnl LIBMATH_INCLUDES
1595 dnl LIBSUPCXX_INCLUDES
1597 dnl CSHADOW_INCLUDES
1599 dnl GLIBCPP_EXPORT_INCLUDE
1600 AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
1601 # Root level of the include sources.
1602 GLIBCPP_INCLUDE_DIR='$(top_srcdir)/include'
1604 # Can either use include/c or include/c_std to grab "C" headers. This
1605 # variable is set to the include directory currently in use.
1606 # set with C_INCLUDE_DIR in GLIBCPP_ENABLE_SHADOW
1608 # Passed down for canadian crosses.
1609 if test x"$CANADIAN" = xyes; then
1610 TOPLEVEL_INCLUDES='-I$(includedir)'
1613 LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
1615 LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
1617 #if GLIBCPP_NEED_LIBIO
1618 LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
1620 #LIBIO_INCLUDES='-I$(top_srcdir)/libio'
1623 #if GLIBCPP_USE_CSHADOW
1624 # CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR) \
1625 # -I$(top_blddir)/cshadow'
1627 CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR)'
1630 # Now, export this to all the little Makefiles....
1631 AC_SUBST(GLIBCPP_INCLUDE_DIR)
1632 AC_SUBST(TOPLEVEL_INCLUDES)
1633 AC_SUBST(LIBMATH_INCLUDES)
1634 AC_SUBST(LIBSUPCXX_INCLUDES)
1635 AC_SUBST(LIBIO_INCLUDES)
1636 AC_SUBST(CSHADOW_INCLUDES)
1641 dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
1643 AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
1644 # Optimization flags that are probably a good idea for thrill-seekers. Just
1645 # uncomment the lines below and make, everything else is ready to go...
1646 # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
1648 AC_SUBST(OPTIMIZE_CXXFLAGS)
1650 WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
1651 AC_SUBST(WARN_FLAGS)
1655 # Check whether LC_MESSAGES is available in <locale.h>.
1656 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1658 # This file file be copied and used freely without restrictions. It can
1659 # be used in projects which are not available under the GNU Public License
1660 # but which still want to provide support for the GNU gettext functionality.
1661 # Please note that the actual code is *not* freely available.
1665 AC_DEFUN(AC_LC_MESSAGES, [
1666 AC_CHECK_HEADER(locale.h, [
1667 AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
1668 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
1669 ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
1670 if test $ac_cv_val_LC_MESSAGES = yes; then
1671 AC_DEFINE(HAVE_LC_MESSAGES)
1677 # Check for functions in math library.
1678 # Ulrich Drepper <drepper@cygnus.com>, 1998.
1680 # This file can be copied and used freely without restrictions. It can
1681 # be used in projects which are not available under the GNU Public License
1682 # but which still want to provide support for the GNU gettext functionality.
1683 # Please note that the actual code is *not* freely available.
1687 dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
1688 AC_DEFUN(AC_REPLACE_MATHFUNCS,
1689 [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])
1690 AC_SUBST(LIBMATHOBJS)dnl
1694 # Check for string functions.
1695 # Ulrich Drepper <drepper@cygnus.com>, 1998.
1697 # This file can be copied and used freely without restrictions. It can
1698 # be used in projects which are not available under the GNU Public License
1699 # but which still want to provide support for the GNU gettext functionality.
1700 # Please note that the actual code is *not* freely available.
1704 dnl AC_REPLACE_STRINGFUNCS(FUNCTION...)
1705 AC_DEFUN(AC_REPLACE_STRINGFUNCS,
1706 [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"])
1707 AC_SUBST(LIBSTRINGOBJS)dnl
1711 dnl This macro searches for a GNU version of make. If a match is found, the
1712 dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
1713 dnl set to "#". This is useful for including a special features in a Makefile,
1714 dnl which cannot be handled by other versions of make. The variable
1715 dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
1716 dnl the empty string otherwise.
1718 dnl Here is an example of its use:
1720 dnl Makefile.in might contain:
1722 dnl # A failsafe way of putting a dependency rule into a makefile
1724 dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
1726 dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
1727 dnl @ifGNUmake@ include $(DEPEND)
1728 dnl @ifGNUmake@ endif
1730 dnl Then configure.in would normally contain:
1732 dnl CHECK_GNU_MAKE()
1733 dnl AC_OUTPUT(Makefile)
1735 dnl Then perhaps to cause gnu make to override any other make, we could do
1736 dnl something like this (note that GNU make always looks for GNUmakefile first):
1738 dnl if ! test x$_cv_gnu_make_command = x ; then
1739 dnl mv Makefile GNUmakefile
1740 dnl echo .DEFAULT: > Makefile ;
1741 dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
1744 dnl Then, if any (well almost any) other make is called, and GNU make also
1745 dnl exists, then the other make wraps the GNU make.
1747 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
1748 dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
1750 dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending
1751 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
1752 dnl #### conditional's subshell (" --version" is not a command), using a
1753 dnl #### different option to grep(1).
1756 GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
1757 _cv_gnu_make_command='' ;
1758 dnl Search all the common names for GNU make
1759 for a in "${MAKE:-make}" make gmake gnumake ; do
1760 if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
1762 _cv_gnu_make_command=$a ;
1767 dnl If there was a GNU version, then set @ifGNUmake@ to the empty
1768 dnl string, '#' otherwise
1769 if test "x$_cv_gnu_make_command" != "x" ; then
1777 sinclude(../libtool.m4)
1778 dnl The lines below arrange for aclocal not to bring an installed
1779 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
1780 dnl add a definition of LIBTOOL to Makefile.in.
1781 ifelse(,,,[AC_SUBST(LIBTOOL)
1782 AC_DEFUN([AM_PROG_LIBTOOL])
1783 AC_DEFUN([AC_LIBTOOL_DLOPEN])
1784 AC_DEFUN([AC_PROG_LD])
1788 # Do all the work for Automake. This macro actually does too much --
1789 # some checks are only needed if your package does certain things.
1790 # But this isn't really a big deal.
1795 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
1797 AC_DEFUN(AM_INIT_AUTOMAKE,
1798 [AC_REQUIRE([AC_PROG_INSTALL])
1803 dnl test to see if srcdir already configured
1804 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
1805 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
1808 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
1809 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
1810 AC_REQUIRE([AM_SANITY_CHECK])
1811 AC_REQUIRE([AC_ARG_PROGRAM])
1812 dnl FIXME This is truly gross.
1813 missing_dir=`cd $ac_aux_dir && pwd`
1814 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
1815 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
1816 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
1817 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
1818 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
1819 AC_REQUIRE([AC_PROG_MAKE_SET])])
1822 # Check to make sure that the build environment is sane.
1825 AC_DEFUN(AM_SANITY_CHECK,
1826 [AC_MSG_CHECKING([whether build environment is sane])
1829 echo timestamp > conftestfile
1830 # Do `set' in a subshell so we don't clobber the current shell's
1831 # arguments. Must try -L first in case configure is actually a
1832 # symlink; some systems play weird games with the mod time of symlinks
1833 # (eg FreeBSD returns the mod time of the symlink's containing
1836 set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
1837 if test "[$]*" = "X"; then
1839 set X `ls -t $srcdir/configure conftestfile`
1841 if test "[$]*" != "X $srcdir/configure conftestfile" \
1842 && test "[$]*" != "X conftestfile $srcdir/configure"; then
1844 # If neither matched, then we have a broken ls. This can happen
1845 # if, for instance, CONFIG_SHELL is bash and it inherits a
1846 # broken ls alias from the environment. This has actually
1847 # happened. Such a system could not be considered "sane".
1848 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
1849 alias in your environment])
1852 test "[$]2" = conftestfile
1858 AC_MSG_ERROR([newly created file is older than distributed files!
1859 Check your system clock])
1862 AC_MSG_RESULT(yes)])
1864 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
1865 dnl The program must properly implement --version.
1866 AC_DEFUN(AM_MISSING_PROG,
1867 [AC_MSG_CHECKING(for working $2)
1868 # Run test in a subshell; some versions of sh will print an error if
1869 # an executable is not found, even if stderr is redirected.
1870 # Redirect stdin to placate older versions of autoconf. Sigh.
1871 if ($2 --version) < /dev/null > /dev/null 2>&1; then
1873 AC_MSG_RESULT(found)
1876 AC_MSG_RESULT(missing)
1880 # Add --enable-maintainer-mode option to configure.
1885 AC_DEFUN(AM_MAINTAINER_MODE,
1886 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1887 dnl maintainer-mode is disabled by default
1888 AC_ARG_ENABLE(maintainer-mode,
1889 [ --enable-maintainer-mode enable make rules and dependencies not useful
1890 (and sometimes confusing) to the casual installer],
1891 USE_MAINTAINER_MODE=$enableval,
1892 USE_MAINTAINER_MODE=no)
1893 AC_MSG_RESULT($USE_MAINTAINER_MODE)
1894 AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
1895 MAINT=$MAINTAINER_MODE_TRUE
1900 # Define a conditional.
1902 AC_DEFUN(AM_CONDITIONAL,
1913 # Like AC_CONFIG_HEADER, but automatically create stamp file.
1915 AC_DEFUN(AM_CONFIG_HEADER,
1917 AC_CONFIG_HEADER([$1])
1918 dnl When config.status generates a header, we must update the stamp-h file.
1919 dnl This file resides in the same directory as the config header
1920 dnl that is generated. We must strip everything past the first ":",
1921 dnl and everything past the last "/".
1922 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
1923 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
1924 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
1926 for am_file in <<$1>>; do
1927 case " <<$>>CONFIG_HEADERS " in
1928 *" <<$>>am_file "*<<)>>
1929 echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
1932 am_indx=`expr "<<$>>am_indx" + 1`