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 Check to see if the (unistd function) argument passed is
607 dnl 1) declared when using the c++ compiler
608 dnl 2) has "C" linkage
610 dnl argument 1 is name of function to check
612 dnl ASSUMES argument is a function with ONE parameter
614 dnl GLIBCPP_CHECK_UNISTD_DECL_AND_LINKAGE_1
615 AC_DEFUN(GLIBCPP_CHECK_UNISTD_DECL_AND_LINKAGE_1, [
616 AC_MSG_CHECKING([for $1 declaration])
617 if test x${glibcpp_cv_func_$1_use+set} != xset; then
618 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
621 AC_TRY_COMPILE([#include <unistd.h>],
623 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
627 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
628 if test x$glibcpp_cv_func_$1_use = x"yes"; then
634 dnl Because the builtins are picky picky picky about the arguments they take,
635 dnl do an explict linkage tests here.
636 dnl Check to see if the (math function) argument passed is
637 dnl 1) declared when using the c++ compiler
638 dnl 2) has "C" linkage
640 dnl Define HAVE_CARGF etc if "cargf" is declared and links
642 dnl argument 1 is name of function to check
644 dnl ASSUMES argument is a math function with ONE parameter
646 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
647 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
648 AC_MSG_CHECKING([for $1 declaration])
649 if test x${glibcpp_cv_func_$1_use+set} != xset; then
650 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
653 AC_TRY_COMPILE([#include <math.h>],
655 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
659 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
660 if test x$glibcpp_cv_func_$1_use = x"yes"; then
661 AC_MSG_CHECKING([for $1 linkage])
662 if test x${glibcpp_cv_func_$1_link+set} != xset; then
663 AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
664 AC_TRY_LINK([#include <math.h>],
666 [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
669 AC_MSG_RESULT($glibcpp_cv_func_$1_link)
670 if test x$glibcpp_cv_func_$1_link = x"yes"; then
671 ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
672 AC_DEFINE_UNQUOTED(${ac_tr_func})
679 dnl Check to see what builtin math functions are supported
681 dnl check for __builtin_abs
682 dnl check for __builtin_fabsf
683 dnl check for __builtin_fabs
684 dnl check for __builtin_fabl
685 dnl check for __builtin_labs
686 dnl check for __builtin_sqrtf
687 dnl check for __builtin_sqrtl
688 dnl check for __builtin_sqrt
689 dnl check for __builtin_sinf
690 dnl check for __builtin_sin
691 dnl check for __builtin_sinl
692 dnl check for __builtin_cosf
693 dnl check for __builtin_cos
694 dnl check for __builtin_cosl
696 dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
697 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
698 dnl Test for builtin math functions.
699 dnl These are made in gcc/c-common.c
700 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
701 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
702 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
703 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
704 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
706 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
707 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrt)
708 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
710 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
711 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
712 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
714 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
715 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
716 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
718 dnl There is, without a doubt, a more elegant way to have these
719 dnl names exported so that they won't be stripped out of acconfig.h by
720 dnl autoheader. I leave this as an exercise to somebody less frustrated
721 dnl than I.... please email the libstdc++ list if you can figure out a
722 dnl more elegant approach (see autoconf/acgen.m4 and specifically
723 dnl AC_CHECK_FUNC for things to steal.)
725 if test x$dummyvar = x"yes"; then
726 AC_DEFINE(HAVE___BUILTIN_ABS)
727 AC_DEFINE(HAVE___BUILTIN_LABS)
728 AC_DEFINE(HAVE___BUILTIN_COS)
729 AC_DEFINE(HAVE___BUILTIN_COSF)
730 AC_DEFINE(HAVE___BUILTIN_COSL)
731 AC_DEFINE(HAVE___BUILTIN_FABS)
732 AC_DEFINE(HAVE___BUILTIN_FABSF)
733 AC_DEFINE(HAVE___BUILTIN_FABSL)
734 AC_DEFINE(HAVE___BUILTIN_SIN)
735 AC_DEFINE(HAVE___BUILTIN_SINF)
736 AC_DEFINE(HAVE___BUILTIN_SINL)
737 AC_DEFINE(HAVE___BUILTIN_SQRT)
738 AC_DEFINE(HAVE___BUILTIN_SQRTF)
739 AC_DEFINE(HAVE___BUILTIN_SQRTL)
744 dnl Check to see what the underlying c library is like
745 dnl These checks need to do two things:
746 dnl 1) make sure the name is declared when using the c++ compiler
747 dnl 2) make sure the name has "C" linkage
748 dnl This might seem like overkill but experience has shown that it's not...
750 dnl Define HAVE_STRTOLD if "strtold" is declared and links
751 dnl Define HAVE_STRTOF if "strtof" is declared and links
752 dnl Define HAVE_DRAND48 if "drand48" is declared and links
754 dnl GLIBCPP_CHECK_STDLIB_SUPPORT
755 AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
756 ac_test_CXXFLAGS="${CXXFLAGS+set}"
757 ac_save_CXXFLAGS="$CXXFLAGS"
758 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
760 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
761 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)
762 AC_CHECK_FUNCS(drand48)
764 CXXFLAGS="$ac_save_CXXFLAGS"
768 dnl Check to see what the underlying c library is like
769 dnl These checks need to do two things:
770 dnl 1) make sure the name is declared when using the c++ compiler
771 dnl 2) make sure the name has "C" linkage
772 dnl This might seem like overkill but experience has shown that it's not...
774 dnl Define HAVE_ISATTY if "isatty" is declared and links
776 dnl GLIBCPP_CHECK_UNISTD_SUPPORT
777 AC_DEFUN(GLIBCPP_CHECK_UNISTD_SUPPORT, [
778 ac_test_CXXFLAGS="${CXXFLAGS+set}"
779 ac_save_CXXFLAGS="$CXXFLAGS"
780 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
782 GLIBCPP_CHECK_UNISTD_DECL_AND_LINKAGE_1(isatty)
784 CXXFLAGS="$ac_save_CXXFLAGS"
788 dnl Check to see what the underlying c library or math library is like.
789 dnl These checks need to do two things:
790 dnl 1) make sure the name is declared when using the c++ compiler
791 dnl 2) make sure the name has "C" linkage
792 dnl This might seem like overkill but experience has shown that it's not...
794 dnl Define HAVE_CARGF etc if "cargf" is found.
796 dnl GLIBCPP_CHECK_MATH_SUPPORT
797 AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
798 ac_test_CXXFLAGS="${CXXFLAGS+set}"
799 ac_save_CXXFLAGS="$CXXFLAGS"
800 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
803 AC_CHECK_LIB(m, sin, libm="-lm")
807 dnl Check to see if certain C math functions exist.
808 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
809 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
810 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
811 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
812 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
813 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
814 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
815 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
817 dnl Check to see if basic C math functions have float versions.
818 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
823 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
826 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
827 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
828 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
829 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
830 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
831 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
832 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
833 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
834 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
835 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
836 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
837 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
838 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
839 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
840 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
841 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
843 dnl Check to see if basic C math functions have long double versions.
844 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
849 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
852 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
853 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
854 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
855 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
856 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
857 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
858 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
859 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
860 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
861 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
862 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
863 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
864 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
865 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
866 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
867 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
868 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
870 dnl Some runtimes have these functions with a preceding underscore. Please
871 dnl keep this sync'd with the one above. And if you add any new symbol,
872 dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
873 dnl Check to see if certain C math functions exist.
875 dnl Check to see if basic C math functions have float versions.
876 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
878 _acosf _asinf _atanf \
880 _coshf _sinhf _tanhf)
881 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
885 dnl Check to see if basic C math functions have long double versions.
886 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
888 _acosl _asinl _atanl \
890 _coshl _sinhl _tanhl)
891 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
896 CXXFLAGS="$ac_save_CXXFLAGS"
901 dnl Check to see if there is native support for complex
903 dnl Don't compile bits in math/* if native support exits.
905 dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
907 dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
908 AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
909 dnl Check for complex versions of math functions of platform.
910 AC_CHECK_LIB(m, main)
911 AC_REPLACE_MATHFUNCS(nan copysignf)
913 dnl For __signbit to signbit conversions.
914 AC_CHECK_FUNCS([__signbit], , [LIBMATHOBJS="$LIBMATHOBJS signbit.lo"])
915 AC_CHECK_FUNCS([__signbitf], , [LIBMATHOBJS="$LIBMATHOBJS signbitf.lo"])
917 dnl Compile the long double complex functions only if the function
918 dnl provides the non-complex long double functions that are needed.
919 dnl Currently this includes copysignl, which should be
920 dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
921 if test x$ac_cv_func_copysignl = x"yes"; then
922 AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"])
925 if test -n "$LIBMATHOBJS"; then
928 AC_SUBST(LIBMATHOBJS)
929 AM_CONDITIONAL(GLIBCPP_BUILD_LIBMATH, test "$need_libmath" = yes)
933 dnl Check to see what architecture and operating system we are compiling
934 dnl for. Also, if architecture- or OS-specific flags are required for
935 dnl compilation, pick them up here.
937 dnl GLIBCPP_CHECK_TARGET
938 AC_DEFUN(GLIBCPP_CHECK_TARGET, [
939 . [$]{glibcpp_basedir}/configure.target
940 AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
941 AC_MSG_RESULT(OS config directory is $os_include_dir)
946 dnl Check to see if this target can enable the wchar_t parts of libstdc++.
947 dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
948 dnl must have been previously checked.)
950 dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
951 dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
953 dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
954 AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
955 dnl Wide characters disabled by default.
958 dnl Test wchar.h for mbstate_t, which is needed for char_traits and
959 dnl others even if wchar_t support is not on.
960 AC_MSG_CHECKING([for mbstate_t])
961 AC_TRY_COMPILE([#include <wchar.h>],
962 [mbstate_t teststate;],
963 have_mbstate_t=yes, have_mbstate_t=no)
964 AC_MSG_RESULT($have_mbstate_t)
965 if test x"$have_mbstate_t" = xyes; then
966 AC_DEFINE(HAVE_MBSTATE_T)
969 dnl Sanity check for existence of ISO C99 headers for extended encoding.
970 AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
971 AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
973 dnl Only continue checking if the ISO C99 headers exist and support is on.
974 if test x"$ac_has_wchar_h" = xyes &&
975 test x"$ac_has_wctype_h" = xyes &&
976 test x"$enable_c_mbchar" != xno; then
978 dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
979 dnl numeric_limits can instantiate type_traits<wchar_t>
980 AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
981 AC_TRY_COMPILE([#include <wchar.h>],
982 [int i = WCHAR_MIN; int j = WCHAR_MAX;],
983 has_wchar_minmax=yes, has_wchar_minmax=no)
984 AC_MSG_RESULT($has_wchar_minmax)
986 dnl Test wchar.h for WEOF, which is what we use to determine whether
987 dnl to specialize for char_traits<wchar_t> or not.
988 AC_MSG_CHECKING([for WEOF])
991 #include <stddef.h>],
993 has_weof=yes, has_weof=no)
994 AC_MSG_RESULT($has_weof)
996 dnl Tests for wide character functions used in char_traits<wchar_t>.
998 AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \
1001 dnl Checks for names injected into std:: by the c_std headers.
1002 AC_CHECK_FUNCS(btowc wctob fgetwc fgetws fputwc fputws fwide \
1003 fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
1004 vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
1005 mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
1006 wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
1007 wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \
1010 AC_MSG_CHECKING([for ISO C99 wchar_t support])
1011 if test x"$has_weof" = xyes &&
1012 test x"$has_wchar_minmax" = xyes &&
1013 test x"$ac_wfuncs" = xyes; then
1014 ac_isoC99_wchar_t=yes
1016 ac_isoC99_wchar_t=no
1018 AC_MSG_RESULT($ac_isoC99_wchar_t)
1020 dnl Use iconv for wchar_t to char conversions. As such, check for
1021 dnl X/Open Portability Guide, version 2 features (XPG2).
1022 AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
1023 AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
1025 dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
1026 AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
1027 ac_save_LIBS="$LIBS"
1028 LIBS="$LIBS $libiconv"
1030 AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
1031 ac_XPG2funcs=yes, ac_XPG2funcs=no)
1033 LIBS="$ac_save_LIBS"
1035 AC_MSG_CHECKING([for XPG2 wchar_t support])
1036 if test x"$ac_has_iconv_h" = xyes &&
1037 test x"$ac_has_langinfo_h" = xyes &&
1038 test x"$ac_XPG2funcs" = xyes; then
1043 AC_MSG_RESULT($ac_XPG2_wchar_t)
1045 dnl At the moment, only enable wchar_t specializations if all the
1046 dnl above support is present.
1047 if test x"$ac_isoC99_wchar_t" = xyes &&
1048 test x"$ac_XPG2_wchar_t" = xyes; then
1049 AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
1053 AC_MSG_CHECKING([for enabled wchar_t specializations])
1054 AC_MSG_RESULT($enable_wchar_t)
1055 AM_CONDITIONAL(GLIBCPP_TEST_WCHAR_T, test "$enable_wchar_t" = yes)
1060 dnl Check to see if debugging libraries are to be built.
1062 dnl GLIBCPP_ENABLE_DEBUG
1065 dnl builds a separate set of debugging libraries in addition to the
1066 dnl normal (shared, static) libstdc++ binaries.
1069 dnl builds only one (non-debug) version of libstdc++.
1071 dnl --enable-debug-flags=FLAGS
1072 dnl iff --enable-debug == yes, then use FLAGS to build the debug library.
1074 dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
1075 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1076 dnl defaults to `no'.
1077 AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
1078 define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
1079 AC_ARG_ENABLE(debug,
1080 changequote(<<, >>)dnl
1081 << --enable-debug build extra debug library [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
1082 changequote([, ])dnl
1083 [case "${enableval}" in
1084 yes) enable_debug=yes ;;
1085 no) enable_debug=no ;;
1086 *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
1088 enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
1089 AC_MSG_CHECKING([for additional debug build])
1090 AC_MSG_RESULT($enable_debug)
1091 AM_CONDITIONAL(GLIBCPP_BUILD_DEBUG, test "$enable_debug" = yes)
1095 dnl Check for explicit debug flags.
1097 dnl GLIBCPP_ENABLE_DEBUG_FLAGS
1099 dnl --enable-debug-flags='-O1'
1100 dnl is a general method for passing flags to be used when
1101 dnl building debug libraries with --enable-debug.
1103 dnl --disable-debug-flags does nothing.
1104 dnl + Usage: GLIBCPP_ENABLE_DEBUG_FLAGS(default flags)
1105 dnl If "default flags" is an empty string (or "none"), the effect is
1106 dnl the same as --disable or --enable=no.
1107 AC_DEFUN(GLIBCPP_ENABLE_DEBUG_FLAGS, [dnl
1108 define([GLIBCPP_ENABLE_DEBUG_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1109 AC_ARG_ENABLE(debug_flags,
1110 changequote(<<, >>)dnl
1111 << --enable-debug-flags=FLAGS pass compiler FLAGS when building debug
1112 library;[default=>>GLIBCPP_ENABLE_DEBUG_FLAGS_DEFAULT],
1113 changequote([, ])dnl
1114 [case "${enableval}" in
1116 -*) enable_debug_flags="${enableval}" ;;
1117 *) AC_MSG_ERROR([Unknown argument to extra debugging flags]) ;;
1119 enable_debug_flags=GLIBCPP_ENABLE_DEBUG_FLAGS_DEFAULT)dnl
1121 dnl Option parsed, now set things appropriately
1122 case x"$enable_debug" in
1124 case "$enable_debug_flags" in
1126 DEBUG_FLAGS="-g3 -O0";;
1128 DEBUG_FLAGS="${enableval}"
1135 AC_SUBST(DEBUG_FLAGS)
1137 AC_MSG_CHECKING([for debug build flags])
1138 AC_MSG_RESULT($DEBUG_FLAGS)
1143 dnl Check for "unusual" flags to pass to the compiler while building.
1145 dnl GLIBCPP_ENABLE_CXX_FLAGS
1146 dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
1147 dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
1148 dnl Somehow this same set of flags must be passed when [re]building
1150 dnl --disable-cxx-flags passes nothing.
1151 dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
1152 dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
1153 dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
1154 dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags)
1155 dnl If "default flags" is an empty string (or "none"), the effect is
1156 dnl the same as --disable or --enable=no.
1157 AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
1158 define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1159 AC_MSG_CHECKING([for extra compiler flags for building])
1160 AC_ARG_ENABLE(cxx_flags,
1161 changequote(<<, >>)dnl
1162 << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
1163 [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
1164 changequote([, ])dnl
1165 [case "x$enable_cxx_flags" in
1167 AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
1169 enable_cxx_flags='' ;;
1171 enable_cxx_flags="$enableval" ;;
1173 enable_cxx_flags=GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT)
1175 dnl Run through flags (either default or command-line) and set anything
1176 dnl extra (e.g., #defines) that must accompany particular g++ options.
1177 if test -n "$enable_cxx_flags"; then
1178 for f in $enable_cxx_flags; do
1182 *) # and we're trying to pass /what/ exactly?
1183 AC_MSG_ERROR([compiler flags start with a -]) ;;
1187 EXTRA_CXX_FLAGS="$enable_cxx_flags"
1188 AC_MSG_RESULT($EXTRA_CXX_FLAGS)
1189 AC_SUBST(EXTRA_CXX_FLAGS)
1194 dnl Check for which locale library to use: gnu or generic.
1196 dnl GLIBCPP_ENABLE_CLOCALE
1197 dnl --enable-clocale=gnu sets config/locale/c_locale_gnu.cc and friends
1198 dnl --enable-clocale=generic sets config/locale/c_locale_generic.cc and friends
1200 dnl default is generic
1202 AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
1203 AC_MSG_CHECKING([for clocale to use])
1204 AC_ARG_ENABLE(clocale,
1205 [ --enable-clocale enable model for target locale package.
1206 --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic]
1208 if test x$enable_clocale = xno; then
1213 enable_clocale_flag=$enable_clocale
1215 dnl Probe for locale support if no specific model is specified.
1216 dnl Default to "generic"
1217 if test x$enable_clocale_flag = xno; then
1218 case x${target_os} in
1220 AC_EGREP_CPP([_GLIBCPP_ok], [
1221 #include <features.h>
1222 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1225 ], enable_clocale_flag=gnu, enable_clocale_flag=generic)
1227 # Test for bugs early in glibc-2.2.x series
1228 if test x$enable_clocale_flag = xgnu; then
1230 #define _GNU_SOURCE 1
1233 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
1234 extern __typeof(newlocale) __newlocale;
1235 extern __typeof(duplocale) __duplocale;
1236 extern __typeof(strcoll_l) __strcoll_l;
1240 const char __one[] = "Äuglein Augmen";
1241 const char __two[] = "Äuglein";
1246 loc = __newlocale(1 << LC_ALL, "de_DE", 0);
1247 loc_dup = __duplocale(loc);
1248 i = __strcoll_l(__one, __two, loc);
1249 j = __strcoll_l(__one, __two, loc_dup);
1253 [enable_clocale_flag=gnu],[enable_clocale_flag=generic],
1254 [enable_clocale_flag=generic])
1257 # ... at some point put __strxfrm_l tests in as well.
1260 enable_clocale_flag=generic
1265 dnl Deal with gettext issues.
1267 [ --enable-nls use Native Language Support (default)],
1271 dnl Set configure bits for specified locale package
1272 case x${enable_clocale_flag} in
1274 AC_MSG_RESULT(generic)
1276 CLOCALE_H=config/locale/generic/c_locale.h
1277 CLOCALE_CC=config/locale/generic/c_locale.cc
1278 CCODECVT_H=config/locale/generic/codecvt_specializations.h
1279 CCODECVT_CC=config/locale/generic/codecvt_members.cc
1280 CCOLLATE_CC=config/locale/generic/collate_members.cc
1281 CCTYPE_CC=config/locale/generic/ctype_members.cc
1282 CMESSAGES_H=config/locale/generic/messages_members.h
1283 CMESSAGES_CC=config/locale/generic/messages_members.cc
1284 CMONEY_CC=config/locale/generic/monetary_members.cc
1285 CNUMERIC_CC=config/locale/generic/numeric_members.cc
1286 CTIME_H=config/locale/generic/time_members.h
1287 CTIME_CC=config/locale/generic/time_members.cc
1288 CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
1293 # Declare intention to use gettext, and add support for specific
1295 # For some reason, ALL_LINGUAS has to be before AM-GNU-GETTEXT
1298 # Don't call AM-GNU-GETTEXT here. Instead, assume glibc.
1299 AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no)
1300 if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
1303 # Export the build objects.
1304 for ling in $ALL_LINGUAS; do \
1305 glibcpp_MOFILES="$glibcpp_MOFILES $ling.mo"; \
1306 glibcpp_POFILES="$glibcpp_POFILES $ling.po"; \
1308 AC_SUBST(glibcpp_MOFILES)
1309 AC_SUBST(glibcpp_POFILES)
1311 CLOCALE_H=config/locale/gnu/c_locale.h
1312 CLOCALE_CC=config/locale/gnu/c_locale.cc
1313 CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
1314 CCODECVT_CC=config/locale/gnu/codecvt_members.cc
1315 CCOLLATE_CC=config/locale/gnu/collate_members.cc
1316 CCTYPE_CC=config/locale/gnu/ctype_members.cc
1317 CMESSAGES_H=config/locale/gnu/messages_members.h
1318 CMESSAGES_CC=config/locale/gnu/messages_members.cc
1319 CMONEY_CC=config/locale/gnu/monetary_members.cc
1320 CNUMERIC_CC=config/locale/gnu/numeric_members.cc
1321 CTIME_H=config/locale/gnu/time_members.h
1322 CTIME_CC=config/locale/gnu/time_members.cc
1323 CLOCALE_INTERNAL_H=config/locale/gnu/c++locale_internal.h
1326 AC_MSG_RESULT(generic)
1328 CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
1329 CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
1330 CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
1331 CCODECVT_CC=config/locale/generic/codecvt_members.cc
1332 CCOLLATE_CC=config/locale/generic/collate_members.cc
1333 CCTYPE_CC=config/locale/generic/ctype_members.cc
1334 CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h
1335 CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc
1336 CMONEY_CC=config/locale/generic/monetary_members.cc
1337 CNUMERIC_CC=config/locale/generic/numeric_members.cc
1338 CTIME_H=config/locale/generic/time_members.h
1339 CTIME_CC=config/locale/generic/time_members.cc
1340 CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
1343 echo "$enable_clocale is an unknown locale package" 1>&2
1348 # This is where the testsuite looks for locale catalogs, using the
1349 # -DLOCALEDIR define during testsuite compilation.
1350 glibcpp_localedir=${glibcpp_builddir}/po/share/locale
1351 AC_SUBST(glibcpp_localedir)
1355 AC_SUBST(CCODECVT_H)
1356 AC_SUBST(CMESSAGES_H)
1357 AC_SUBST(CCODECVT_CC)
1358 AC_SUBST(CCOLLATE_CC)
1360 AC_SUBST(CMESSAGES_CC)
1362 AC_SUBST(CNUMERIC_CC)
1365 AC_SUBST(CLOCALE_CC)
1366 AC_SUBST(CLOCALE_INTERNAL_H)
1371 dnl Check for which I/O library to use: libio, or something specific.
1373 dnl GLIBCPP_ENABLE_CSTDIO
1374 dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
1376 dnl default is stdio
1378 AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
1379 AC_MSG_CHECKING([for cstdio to use])
1380 AC_ARG_ENABLE(cstdio,
1381 [ --enable-cstdio enable stdio for target io package.
1382 --enable-cstdio=LIB use LIB target-speific io package. [default=stdio]
1384 if test x$enable_cstdio = xno; then
1387 enable_cstdio=stdio)
1389 enable_cstdio_flag=$enable_cstdio
1391 dnl Check if a valid I/O package
1392 case x${enable_cstdio_flag} in
1394 CSTDIO_H=config/io/c_io_libio.h
1395 BASIC_FILE_H=config/io/basic_file_libio.h
1396 BASIC_FILE_CC=config/io/basic_file_libio.cc
1397 AC_MSG_RESULT(libio)
1399 # see if we are on a system with libio native (ie, linux)
1400 AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
1402 # Need to check and see what version of glibc is being used. If
1403 # it's not glibc-2.2 or higher, then we'll need to go ahead and
1404 # compile most of libio for linux systems.
1405 if test x$has_libio = x"yes"; then
1408 AC_MSG_CHECKING([for glibc version >= 2.2])
1409 AC_EGREP_CPP([ok], [
1410 #include <features.h>
1411 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1414 ], glibc_satisfactory=yes, glibc_satisfactory=no)
1415 AC_MSG_RESULT($glibc_satisfactory)
1419 # XXX at the moment, admit defeat and force the recompilation
1420 # XXX of glibc even on glibc-2.2 systems, because libio is not synched.
1421 glibc_satisfactory=no
1423 if test x$glibc_satisfactory = x"yes"; then
1428 # bkoz XXX need to add checks to enable this
1429 # pme XXX here's a first pass at such a check
1430 if test x$enable_c_mbchar != xno; then
1438 # Using libio, but <libio.h> doesn't exist on the target system. . .
1440 # bkoz XXX need to add checks to enable this
1441 # pme XXX here's a first pass at such a check
1442 if test x$enable_c_mbchar != xno; then
1449 xstdio | x | xno | xnone | xyes)
1451 CSTDIO_H=config/io/c_io_stdio.h
1452 BASIC_FILE_H=config/io/basic_file_stdio.h
1453 BASIC_FILE_CC=config/io/basic_file_stdio.cc
1454 AC_MSG_RESULT(stdio)
1456 # We're not using stdio.
1461 echo "$enable_cstdio is an unknown io package" 1>&2
1466 AC_SUBST(BASIC_FILE_H)
1467 AC_SUBST(BASIC_FILE_CC)
1469 # 2000-08-04 bkoz hack
1470 CCODECVT_C=config/io/c_io_libio_codecvt.c
1471 AC_SUBST(CCODECVT_C)
1472 # 2000-08-04 bkoz hack
1474 AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
1475 test "$need_libio" = yes || test "$need_wlibio" = yes)
1476 AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
1477 AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
1478 if test "$need_libio" = yes || test "$need_wlibio" = yes; then
1479 libio_la=../libio/libio.la
1488 dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
1489 dnl We must stage the required headers so that they will be installed
1490 dnl with the library (unlike libgcc, the STL implementation is provided
1491 dnl solely within headers). Since we must not inject random user-space
1492 dnl macro names into user-provided C++ code, we first stage into <file>-in
1493 dnl and process to <file> with an output command. The reason for a two-
1494 dnl stage process here is to correctly handle $srcdir!=$objdir without
1495 dnl having to write complex code (the sed commands to clean the macro
1496 dnl namespace are complex and fragile enough as it is). We must also
1497 dnl add a relative path so that -I- is supported properly.
1499 AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
1500 AC_MSG_CHECKING([for thread model used by GCC])
1501 target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
1502 AC_MSG_RESULT([$target_thread_file])
1504 if test $target_thread_file != single; then
1505 AC_DEFINE(HAVE_GTHR_DEFAULT)
1506 AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__)
1509 glibcpp_thread_h=gthr-$target_thread_file.h
1510 AC_SUBST(glibcpp_thread_h)
1515 dnl Check for exception handling support. If an explicit enable/disable
1516 dnl sjlj exceptions is given, we don't have to detect. Otherwise the
1517 dnl target may or may not support call frame exceptions.
1519 dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
1520 dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
1521 dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
1523 dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it.
1525 AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [
1526 AC_MSG_CHECKING([for exception model to use])
1529 AC_ARG_ENABLE(sjlj-exceptions,
1530 [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
1532 [dnl Botheration. Now we've got to detect the exception model.
1533 dnl Link tests against libgcc.a are problematic since -- at least
1534 dnl as of this writing -- we've not been given proper -L bits for
1535 dnl single-tree newlib and libgloss.
1537 dnl This is what AC_TRY_COMPILE would do if it didn't delete the
1538 dnl conftest files before we got a change to grep them first.
1539 cat > conftest.$ac_ext << EOF
1540 [#]line __oline__ "configure"
1549 old_CXXFLAGS="$CXXFLAGS"
1551 if AC_TRY_EVAL(ac_compile); then
1552 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
1553 enable_sjlj_exceptions=yes
1554 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
1555 enable_sjlj_exceptions=no
1558 CXXFLAGS="$old_CXXFLAGS"
1560 if test x$enable_sjlj_exceptions = xyes; then
1561 AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1,
1562 [Define if the compiler is configured for setjmp/longjmp exceptions.])
1563 ac_exception_model_name=sjlj
1564 elif test x$enable_sjlj_exceptions = xno; then
1565 ac_exception_model_name="call frame"
1567 AC_MSG_ERROR([unable to detect exception model])
1570 AC_MSG_RESULT($ac_exception_model_name)
1575 dnl Check for libunwind exception handling support. If enabled then
1576 dnl we assume that the _Unwind_* functions that make up the Unwind ABI
1577 dnl (_Unwind_RaiseException, _Unwind_Resume, etc.) are defined by
1578 dnl libunwind instead of libgcc and that libstdc++ has a dependency
1579 dnl on libunwind as well as libgcc.
1581 dnl GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS
1582 dnl --enable-libunwind-exceptions forces the use of libunwind.
1583 dnl --disable-libunwind-exceptions assumes there is no libunwind.
1585 dnl Define _GLIBCPP_LIBUNWIND_EXCEPTIONS if requested.
1587 AC_DEFUN(GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS, [
1588 AC_MSG_CHECKING([for use of libunwind])
1589 AC_ARG_ENABLE(libunwind-exceptions,
1590 [ --enable-libunwind-exceptions force use of libunwind for exceptions],
1591 use_libunwind_exceptions=$enableval,
1592 use_libunwind_exceptions=no)
1593 AC_MSG_RESULT($use_libunwind_exceptions)
1594 dnl Option parsed, now set things appropriately
1595 if test x"$use_libunwind_exceptions" = xyes; then
1596 LIBUNWIND_FLAG="-lunwind"
1600 AC_SUBST(LIBUNWIND_FLAG)
1604 dnl Check for ISO/IEC 9899:1999 "C99" support.
1606 dnl GLIBCPP_ENABLE_C99
1607 dnl --enable-c99 defines _GLIBCPP_USE_C99
1608 dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined
1609 dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)]
1610 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1611 dnl defaults to `no'.
1612 dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
1614 dnl GLIBCPP_ENABLE_C99
1615 AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl
1616 define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl
1619 changequote(<<, >>)dnl
1620 <<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT],
1621 changequote([, ])dnl
1622 [case "$enableval" in
1623 yes) enable_c99=yes ;;
1624 no) enable_c99=no ;;
1625 *) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
1627 enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl
1632 # Check for the existence of <math.h> functions used if C99 is enabled.
1634 AC_MSG_CHECKING([for ISO C99 support in <math.h>])
1635 AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
1636 AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
1637 AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
1638 AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
1639 AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
1640 AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
1641 AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
1642 AC_TRY_COMPILE([#include <math.h>],
1643 [isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
1644 AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
1645 AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
1646 AC_TRY_COMPILE([#include <math.h>],
1647 [islessgreater(0.0,0.0);],, [ac_c99_math=no])
1648 AC_TRY_COMPILE([#include <math.h>],
1649 [isunordered(0.0,0.0);],, [ac_c99_math=no])
1650 AC_MSG_RESULT($ac_c99_math)
1652 # Check for the existence in <stdio.h> of vscanf, et. al.
1654 AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
1655 AC_TRY_COMPILE([#include <stdio.h>],
1656 [snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
1657 AC_TRY_COMPILE([#include <stdio.h>
1659 void foo(char* fmt, ...)
1660 {va_list args; va_start(args, fmt);
1661 vfscanf(stderr, "%i", args);}],
1662 [],, [ac_c99_stdio=no])
1663 AC_TRY_COMPILE([#include <stdio.h>
1665 void foo(char* fmt, ...)
1666 {va_list args; va_start(args, fmt);
1667 vscanf("%i", args);}],
1668 [],, [ac_c99_stdio=no])
1669 AC_TRY_COMPILE([#include <stdio.h>
1671 void foo(char* fmt, ...)
1672 {va_list args; va_start(args, fmt);
1673 vsnprintf(fmt, 0, "%i", args);}],
1674 [],, [ac_c99_stdio=no])
1675 AC_TRY_COMPILE([#include <stdio.h>
1677 void foo(char* fmt, ...)
1678 {va_list args; va_start(args, fmt);
1679 vsscanf(fmt, "%i", args);}],
1680 [],, [ac_c99_stdio=no])
1681 AC_MSG_RESULT($ac_c99_stdio)
1683 # Check for the existence in <stdlib.h> of lldiv_t, et. al.
1685 AC_MSG_CHECKING([for lldiv_t declaration])
1686 AC_CACHE_VAL(ac_c99_lldiv_t, [
1687 AC_TRY_COMPILE([#include <stdlib.h>],
1689 [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
1691 AC_MSG_RESULT($ac_c99_lldiv_t)
1693 AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
1694 AC_TRY_COMPILE([#include <stdlib.h>],
1695 [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
1696 AC_TRY_COMPILE([#include <stdlib.h>],
1697 [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
1698 AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
1699 AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
1700 AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
1701 AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
1702 if test x"$ac_c99_lldiv_t" = x"no"; then
1705 AC_MSG_RESULT($ac_c99_stdlib)
1707 # Check for the existence of <wchar.h> functions used if C99 is enabled.
1708 # XXX the wchar.h checks should be rolled into the general C99 bits.
1710 AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
1711 AC_TRY_COMPILE([#include <wchar.h>],
1712 [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
1713 AC_TRY_COMPILE([#include <wchar.h>],
1714 [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
1715 AC_TRY_COMPILE([#include <wchar.h>],
1716 [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
1717 AC_MSG_RESULT($ac_c99_wchar)
1719 AC_MSG_CHECKING([for enabled ISO C99 support])
1720 if test x"$ac_c99_math" = x"no" ||
1721 test x"$ac_c99_stdio" = x"no" ||
1722 test x"$ac_c99_stdlib" = x"no" ||
1723 test x"$ac_c99_wchar" = x"no"; then
1726 AC_MSG_RESULT($enable_c99)
1728 # Option parsed, now set things appropriately
1729 if test x"$enable_c99" = x"yes"; then
1730 AC_DEFINE(_GLIBCPP_USE_C99)
1738 dnl Check for template specializations for the 'long long' type extension.
1739 dnl The result determines only whether 'long long' I/O is enabled; things
1740 dnl like numeric_limits<> specializations are always available.
1742 dnl GLIBCPP_ENABLE_LONG_LONG
1743 dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
1744 dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
1745 dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
1746 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1747 dnl defaults to `no'.
1748 dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
1750 dnl GLIBCPP_ENABLE_LONG_LONG
1751 AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
1752 define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
1754 AC_ARG_ENABLE(long-long,
1755 changequote(<<, >>)dnl
1756 <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
1757 changequote([, ])dnl
1758 [case "$enableval" in
1759 yes) enable_long_long=yes ;;
1760 no) enable_long_long=no ;;
1761 *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
1763 enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
1768 AC_MSG_CHECKING([for enabled long long I/O support])
1769 # iostreams require strtoll, strtoull to compile
1770 AC_TRY_COMPILE([#include <stdlib.h>],
1771 [char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
1772 AC_TRY_COMPILE([#include <stdlib.h>],
1773 [char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
1775 # Option parsed, now set things appropriately
1776 if test x"$enable_long_long" = xyes; then
1777 AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
1779 AC_MSG_RESULT($enable_long_long)
1786 dnl Check for what type of C headers to use.
1788 dnl GLIBCPP_ENABLE_CHEADERS
1789 dnl --enable-cheaders= [does stuff].
1790 dnl --disable-cheaders [does not do anything, really].
1791 dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)]
1792 dnl Where DEFAULT is either `c' or `c_std'.
1793 dnl If ommitted, it defaults to `c_std'.
1794 AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
1795 define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
1796 AC_MSG_CHECKING([for c header strategy to use])
1797 AC_ARG_ENABLE(cheaders,
1798 changequote(<<, >>)dnl
1799 << --enable-cheaders=MODEL construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
1801 [case "$enableval" in
1806 enable_cheaders=c_std
1808 *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
1811 enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
1812 AC_MSG_RESULT($enable_cheaders)
1814 dnl Option parsed, now set things appropriately
1815 case "$enable_cheaders" in
1817 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std'
1820 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c'
1824 AC_SUBST(C_INCLUDE_DIR)
1825 AM_CONDITIONAL(GLIBCPP_C_HEADERS_C, test "$enable_cheaders" = c)
1826 AM_CONDITIONAL(GLIBCPP_C_HEADERS_C_STD, test "$enable_cheaders" = c_std)
1827 AM_CONDITIONAL(GLIBCPP_C_HEADERS_COMPATIBILITY, test "$c_compatibility" = yes)
1832 dnl Check for wide character support. Has the same effect as the option
1833 dnl in gcc's configure, but in a form that autoconf can mess with.
1835 dnl GLIBCPP_ENABLE_C_MBCHAR
1836 dnl --enable-c-mbchar requests all the wchar_t stuff.
1837 dnl --disable-c-mbchar doesn't.
1838 dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
1839 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1840 dnl defaults to `no'.
1841 AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
1842 define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
1843 AC_ARG_ENABLE(c-mbchar,
1844 changequote(<<, >>)dnl
1845 << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
1846 changequote([, ])dnl
1847 [case "$enableval" in
1848 yes) enable_c_mbchar=yes ;;
1849 no) enable_c_mbchar=no ;;
1850 *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
1852 enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
1853 dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
1858 dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
1860 dnl TOPLEVEL_INCLUDES
1861 dnl LIBMATH_INCLUDES
1862 dnl LIBSUPCXX_INCLUDES
1865 dnl GLIBCPP_EXPORT_INCLUDES
1866 AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
1867 # Root level of the build directory include sources.
1868 GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include"
1870 # Passed down for canadian crosses.
1871 if test x"$CANADIAN" = xyes; then
1872 TOPLEVEL_INCLUDES='-I$(includedir)'
1875 LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
1877 LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
1879 if test x"$need_libio" = xyes; then
1880 LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
1881 AC_SUBST(LIBIO_INCLUDES)
1884 # Now, export this to all the little Makefiles....
1885 AC_SUBST(GLIBCPP_INCLUDES)
1886 AC_SUBST(TOPLEVEL_INCLUDES)
1887 AC_SUBST(LIBMATH_INCLUDES)
1888 AC_SUBST(LIBSUPCXX_INCLUDES)
1893 dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
1895 AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
1896 # Optimization flags that are probably a good idea for thrill-seekers. Just
1897 # uncomment the lines below and make, everything else is ready to go...
1898 # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
1900 AC_SUBST(OPTIMIZE_CXXFLAGS)
1902 WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
1903 AC_SUBST(WARN_FLAGS)
1907 dnl GLIBCPP_EXPORT_INSTALL_INFO
1908 dnl calculates gxx_install_dir
1909 dnl exports glibcpp_toolexecdir
1910 dnl exports glibcpp_toolexeclibdir
1911 dnl exports glibcpp_prefixdir
1913 dnl Assumes cross_compiling bits already done, and with_cross_host in
1916 dnl GLIBCPP_EXPORT_INSTALL_INFO
1917 AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
1918 # Assumes glibcpp_builddir, glibcpp_srcdir are alreay set up and
1919 # exported correctly in GLIBCPP_CONFIGURE.
1920 glibcpp_toolexecdir=no
1921 glibcpp_toolexeclibdir=no
1922 glibcpp_prefixdir=${prefix}
1924 # Process the option --with-gxx-include-dir=<path to include-files directory>
1925 AC_MSG_CHECKING([for --with-gxx-include-dir])
1926 AC_ARG_WITH(gxx-include-dir,
1927 [ --with-gxx-include-dir the installation directory for include files],
1928 [case "${withval}" in
1930 AC_MSG_ERROR(Missing directory for --with-gxx-include-dir)
1937 gxx_include_dir=${withval}
1939 esac], [gxx_include_dir=no])
1940 AC_MSG_RESULT($gxx_include_dir)
1942 # Process the option "--enable-version-specific-runtime-libs"
1943 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
1944 AC_ARG_ENABLE(version-specific-runtime-libs,
1945 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
1946 [case "$enableval" in
1947 yes) version_specific_libs=yes ;;
1948 no) version_specific_libs=no ;;
1949 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
1951 version_specific_libs=no)dnl
1952 # Option set, now we can test it.
1953 AC_MSG_RESULT($version_specific_libs)
1955 # Default case for install directory for include files.
1956 if test $version_specific_libs = no && test $gxx_include_dir = no; then
1957 gxx_include_dir='$(prefix)'/include/c++/${gcc_version}
1960 # Version-specific runtime libs processing.
1961 if test $version_specific_libs = yes; then
1962 # Need the gcc compiler version to know where to install libraries
1963 # and header files if --enable-version-specific-runtime-libs option
1965 if test x"$gxx_include_dir" = x"no"; then
1966 gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/c++
1968 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1969 glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
1972 # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
1973 # Install a library built with a cross compiler in tooldir, not libdir.
1974 if test x"$glibcpp_toolexecdir" = x"no"; then
1975 if test -n "$with_cross_host" &&
1976 test x"$with_cross_host" != x"no"; then
1977 glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
1978 glibcpp_toolexeclibdir='$(toolexecdir)/lib'
1980 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1981 glibcpp_toolexeclibdir='$(libdir)'
1983 glibcpp_toolexeclibdir=$glibcpp_toolexeclibdir/`$CC -print-multi-os-directory`
1986 AC_MSG_CHECKING([for install location])
1987 AC_MSG_RESULT($gxx_include_dir)
1989 AC_SUBST(glibcpp_prefixdir)
1990 AC_SUBST(gxx_include_dir)
1991 AC_SUBST(glibcpp_toolexecdir)
1992 AC_SUBST(glibcpp_toolexeclibdir)
1996 # Check for functions in math library.
1997 # Ulrich Drepper <drepper@cygnus.com>, 1998.
1999 # This file can be copied and used freely without restrictions. It can
2000 # be used in projects which are not available under the GNU Public License
2001 # but which still want to provide support for the GNU gettext functionality.
2002 # Please note that the actual code is *not* freely available.
2006 dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
2007 AC_DEFUN(AC_REPLACE_MATHFUNCS,
2008 [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])])
2011 dnl This macro searches for a GNU version of make. If a match is found, the
2012 dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
2013 dnl set to "#". This is useful for including a special features in a Makefile,
2014 dnl which cannot be handled by other versions of make. The variable
2015 dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
2016 dnl the empty string otherwise.
2018 dnl Here is an example of its use:
2020 dnl Makefile.in might contain:
2022 dnl # A failsafe way of putting a dependency rule into a makefile
2024 dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
2026 dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
2027 dnl @ifGNUmake@ include $(DEPEND)
2028 dnl @ifGNUmake@ endif
2030 dnl Then configure.in would normally contain:
2032 dnl CHECK_GNU_MAKE()
2033 dnl AC_OUTPUT(Makefile)
2035 dnl Then perhaps to cause gnu make to override any other make, we could do
2036 dnl something like this (note that GNU make always looks for GNUmakefile first):
2038 dnl if ! test x$_cv_gnu_make_command = x ; then
2039 dnl mv Makefile GNUmakefile
2040 dnl echo .DEFAULT: > Makefile ;
2041 dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
2044 dnl Then, if any (well almost any) other make is called, and GNU make also
2045 dnl exists, then the other make wraps the GNU make.
2047 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
2048 dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
2050 dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending
2051 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
2052 dnl #### conditional's subshell (" --version" is not a command), using a
2053 dnl #### different option to grep(1).
2055 dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not
2056 dnl #### ${MAKE:-make}).
2059 GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
2060 _cv_gnu_make_command='' ;
2061 dnl Search all the common names for GNU make
2062 for a in "${MAKE-make}" make gmake gnumake ; do
2063 if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
2065 _cv_gnu_make_command=$a ;
2070 dnl If there was a GNU version, then set @ifGNUmake@ to the empty
2071 dnl string, '#' otherwise
2072 if test "x$_cv_gnu_make_command" != "x" ; then
2081 dnl Check for headers for, and arguments to, the setrlimit() function.
2082 dnl Used only in testsuite_hooks.h.
2083 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [
2084 AC_TRY_COMPILE([#include <unistd.h>
2085 #include <sys/time.h>
2086 #include <sys/resource.h>
2087 ], [ int f = RLIMIT_$1 ; ],
2088 [glibcpp_mresult=1], [glibcpp_mresult=0])
2089 AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult,
2090 [Only used in build directory testsuite_hooks.h.])
2092 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [
2093 setrlimit_have_headers=yes
2094 AC_CHECK_HEADERS(unistd.h sys/time.h sys/resource.h,
2096 setrlimit_have_headers=no)
2097 # If don't have the headers, then we can't run the tests now, and we
2098 # won't be seeing any of these during testsuite compilation.
2099 if test $setrlimit_have_headers = yes; then
2100 # Can't do these in a loop, else the resulting syntax is wrong.
2101 GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA)
2102 GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS)
2103 GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM)
2104 GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS)
2106 # Check for rlimit, setrlimit.
2107 AC_CACHE_VAL(ac_setrlimit, [
2108 AC_TRY_COMPILE([#include <unistd.h>
2109 #include <sys/time.h>
2110 #include <sys/resource.h>
2112 [ struct rlimit r; setrlimit(0, &r);],
2113 [ac_setrlimit=yes], [ac_setrlimit=no])
2117 AC_MSG_CHECKING([for testsuite memory limit support])
2118 if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
2120 AC_DEFINE(_GLIBCPP_MEM_LIMITS)
2124 AC_MSG_RESULT($ac_mem_limits)
2129 dnl Does any necessary configuration of the testsuite directory. Generates
2130 dnl the testsuite_hooks.h header.
2132 dnl GLIBCPP_CONFIGURE_TESTSUITE [no args]
2133 AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [
2134 GLIBCPP_CHECK_SETRLIMIT
2136 # Look for setenv, so that extended locale tests can be performed.
2137 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
2139 # Export file names for ABI checking.
2140 baseline_file="${glibcpp_srcdir}/config/abi/${abi_baseline_triplet}/baseline_symbols.txt"
2141 AC_SUBST(baseline_file)
2143 # Don't do ABI checking unless native.
2144 AM_CONDITIONAL(GLIBCPP_BUILD_ABI_CHECK,
2145 test x"$build" = x"$host" && test -z "$with_cross_host")
2149 sinclude(../libtool.m4)
2150 dnl The lines below arrange for aclocal not to bring an installed
2151 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
2152 dnl add a definition of LIBTOOL to Makefile.in.
2153 ifelse(,,,[AC_SUBST(LIBTOOL)
2154 AC_DEFUN([AM_PROG_LIBTOOL])
2155 AC_DEFUN([AC_LIBTOOL_DLOPEN])
2156 AC_DEFUN([AC_PROG_LD])
2160 # Check whether LC_MESSAGES is available in <locale.h>.
2161 # Ulrich Drepper <drepper@cygnus.com>, 1995.
2163 # This file file be copied and used freely without restrictions. It can
2164 # be used in projects which are not available under the GNU Public License
2165 # but which still want to provide support for the GNU gettext functionality.
2166 # Please note that the actual code is *not* freely available.
2170 AC_DEFUN(AC_LC_MESSAGES, [
2171 AC_CHECK_HEADER(locale.h, [
2172 AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
2173 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
2174 ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
2175 if test $ac_cv_val_LC_MESSAGES = yes; then
2176 AC_DEFINE(HAVE_LC_MESSAGES)
2183 dnl Check for whether the Boost-derived checks should be turned on.
2185 dnl GLIBCPP_ENABLE_CONCEPT_CHECKS
2186 dnl --enable-concept-checks turns them on.
2187 dnl --disable-concept-checks leaves them off.
2188 dnl + Usage: GLIBCPP_ENABLE_CONCEPT_CHECKS[(DEFAULT)]
2189 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
2190 dnl defaults to `no'.
2191 AC_DEFUN(GLIBCPP_ENABLE_CONCEPT_CHECKS, [dnl
2192 define([GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT], ifelse($1, yes, yes, no))dnl
2193 AC_ARG_ENABLE(concept-checks,
2194 changequote(<<, >>)dnl
2195 << --enable-concept-checks use Boost-derived template checks [default=>>GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT],
2196 changequote([, ])dnl
2197 [case "$enableval" in
2198 yes) enable_concept_checks=yes ;;
2199 no) enable_concept_checks=no ;;
2200 *) AC_MSG_ERROR([Unknown argument to enable/disable concept checks]) ;;
2202 enable_concept_checks=GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT)dnl
2203 dnl Option parsed, now set things appropriately
2204 if test x"$enable_concept_checks" = xyes; then
2205 AC_DEFINE(_GLIBCPP_CONCEPT_CHECKS)
2211 dnl Add version tags to symbols in shared library (or not), additionally
2212 dnl marking other symbols as private/local (or not).
2214 dnl GLIBCPP_ENABLE_SYMVERS
2215 dnl --enable-symvers=style adds a version script to the linker call when
2216 dnl creating the shared library. The choice of version script is
2217 dnl controlled by 'style'.
2218 dnl --disable-symvers does not.
2219 dnl + Usage: GLIBCPP_ENABLE_SYMVERS[(DEFAULT)]
2220 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
2221 dnl defaults to `no'. Passing `yes' tries to choose a default style
2222 dnl based on linker characteristics. Passing 'no' disables versioning.
2223 AC_DEFUN(GLIBCPP_ENABLE_SYMVERS, [dnl
2224 define([GLIBCPP_ENABLE_SYMVERS_DEFAULT], ifelse($1, yes, yes, no))dnl
2225 AC_ARG_ENABLE(symvers,
2226 changequote(<<, >>)dnl
2227 << --enable-symvers=style enables symbol versioning of the shared library [default=>>GLIBCPP_ENABLE_SYMVERS_DEFAULT],
2228 changequote([, ])dnl
2229 [case "$enableval" in
2230 yes) enable_symvers=yes ;;
2231 no) enable_symvers=no ;;
2232 # other names here, just as sanity checks
2233 #gnu|sun|etcetera) enable_symvers=$enableval ;;
2234 gnu) enable_symvers=$enableval ;;
2235 *) AC_MSG_ERROR([Unknown argument to enable/disable symvers]) ;;
2237 enable_symvers=GLIBCPP_ENABLE_SYMVERS_DEFAULT)dnl
2239 # If we never went through the GLIBCPP_CHECK_LINKER_FEATURES macro, then we
2240 # don't know enough about $LD to do tricks...
2241 if test x$enable_shared = xno ||
2243 test x$glibcpp_gnu_ld_version = x; then
2247 # Check to see if libgcc_s exists, indicating that shared libgcc is possible.
2248 if test $enable_symvers != no; then
2249 AC_MSG_CHECKING([for shared libgcc])
2250 ac_save_CFLAGS="$CFLAGS"
2252 AC_TRY_LINK(, [return 0], glibcpp_shared_libgcc=yes, glibcpp_shared_libgcc=no)
2253 CFLAGS="$ac_save_CFLAGS"
2254 AC_MSG_RESULT($glibcpp_shared_libgcc)
2257 # For GNU ld, we need at least this version. It's 2.12 in the same format
2258 # as the tested-for version. See GLIBCPP_CHECK_LINKER_FEATURES for more.
2259 glibcpp_min_gnu_ld_version=21200
2261 # Check to see if unspecified "yes" value can win, given results
2263 if test $enable_symvers = yes ; then
2264 if test $with_gnu_ld = yes &&
2265 test $glibcpp_shared_libgcc = yes ;
2267 if test $glibcpp_gnu_ld_version -ge $glibcpp_min_gnu_ld_version ; then
2270 ac_test_CFLAGS="${CFLAGS+set}"
2271 ac_save_CFLAGS="$CFLAGS"
2272 CFLAGS='-shared -Wl,--version-script,conftest.map'
2275 echo 'FOO { global: f[a-z]o; local: *; };' > conftest.map
2277 AC_TRY_LINK([int foo;],, enable_symvers=gnu)
2278 if test "$ac_test_CFLAGS" = set; then
2279 CFLAGS="$ac_save_CFLAGS"
2281 # this is the suspicious part
2292 dnl Everything parsed; figure out what file to use.
2293 case $enable_symvers in
2295 SYMVER_MAP=config/linker-map.dummy
2298 SYMVER_MAP=config/linker-map.gnu
2299 AC_DEFINE(_GLIBCPP_SYMVER)
2303 AC_SUBST(SYMVER_MAP)
2304 AM_CONDITIONAL(GLIBCPP_BUILD_VERSIONED_SHLIB, test $enable_symvers != no)
2305 AC_MSG_CHECKING([versioning on shared library symbols])
2306 AC_MSG_RESULT($enable_symvers)
2310 # isc-posix.m4 serial 2 (gettext-0.11.2)
2311 dnl Copyright (C) 1995-2002 Free Software Foundation, Inc.
2312 dnl This file is free software, distributed under the terms of the GNU
2313 dnl General Public License. As a special exception to the GNU General
2314 dnl Public License, this file may be distributed as part of a program
2315 dnl that contains a configuration script generated by Autoconf, under
2316 dnl the same distribution terms as the rest of that program.
2318 # This file is not needed with autoconf-2.53 and newer. Remove it in 2005.
2320 # This test replaces the one in autoconf.
2321 # Currently this macro should have the same name as the autoconf macro
2322 # because gettext's gettext.m4 (distributed in the automake package)
2323 # still uses it. Otherwise, the use in gettext.m4 makes autoheader
2324 # give these diagnostics:
2325 # configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
2326 # configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
2328 undefine([AC_ISC_POSIX])
2330 AC_DEFUN([AC_ISC_POSIX],
2332 dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
2333 AC_CHECK_LIB(cposix, strerror, [LIBS="$LIBS -lcposix"])
2337 # Add --enable-maintainer-mode option to configure.
2342 AC_DEFUN([AM_MAINTAINER_MODE],
2343 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2344 dnl maintainer-mode is disabled by default
2345 AC_ARG_ENABLE(maintainer-mode,
2346 [ --enable-maintainer-mode enable make rules and dependencies not useful
2347 (and sometimes confusing) to the casual installer],
2348 USE_MAINTAINER_MODE=$enableval,
2349 USE_MAINTAINER_MODE=no)
2350 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2351 AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
2352 MAINT=$MAINTAINER_MODE_TRUE
2357 # Define a conditional.
2359 AC_DEFUN([AM_CONDITIONAL],
2370 # Do all the work for Automake. This macro actually does too much --
2371 # some checks are only needed if your package does certain things.
2372 # But this isn't really a big deal.
2377 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
2379 AC_DEFUN([AM_INIT_AUTOMAKE],
2380 [AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
2381 AC_REQUIRE([AC_PROG_INSTALL])
2386 dnl test to see if srcdir already configured
2387 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
2388 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
2391 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
2392 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
2393 AC_REQUIRE([AM_SANITY_CHECK])
2394 AC_REQUIRE([AC_ARG_PROGRAM])
2395 dnl FIXME This is truly gross.
2396 missing_dir=`cd $ac_aux_dir && pwd`
2397 AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version}, $missing_dir)
2398 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
2399 AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version}, $missing_dir)
2400 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
2401 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
2402 AC_REQUIRE([AC_PROG_MAKE_SET])])
2404 # Copyright 2002 Free Software Foundation, Inc.
2406 # This program is free software; you can redistribute it and/or modify
2407 # it under the terms of the GNU General Public License as published by
2408 # the Free Software Foundation; either version 2, or (at your option)
2409 # any later version.
2411 # This program is distributed in the hope that it will be useful,
2412 # but WITHOUT ANY WARRANTY; without even the implied warranty of
2413 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
2414 # GNU General Public License for more details.
2416 # You should have received a copy of the GNU General Public License
2417 # along with this program; if not, write to the Free Software
2418 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
2420 # AM_AUTOMAKE_VERSION(VERSION)
2421 # ----------------------------
2422 # Automake X.Y traces this macro to ensure aclocal.m4 has been
2423 # generated from the m4 files accompanying Automake X.Y.
2424 AC_DEFUN([AM_AUTOMAKE_VERSION],[am__api_version="1.4"])
2426 # AM_SET_CURRENT_AUTOMAKE_VERSION
2427 # -------------------------------
2428 # Call AM_AUTOMAKE_VERSION so it can be traced.
2429 # This function is AC_REQUIREd by AC_INIT_AUTOMAKE.
2430 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
2431 [AM_AUTOMAKE_VERSION([1.4-p6])])
2434 # Check to make sure that the build environment is sane.
2437 AC_DEFUN([AM_SANITY_CHECK],
2438 [AC_MSG_CHECKING([whether build environment is sane])
2441 echo timestamp > conftestfile
2442 # Do `set' in a subshell so we don't clobber the current shell's
2443 # arguments. Must try -L first in case configure is actually a
2444 # symlink; some systems play weird games with the mod time of symlinks
2445 # (eg FreeBSD returns the mod time of the symlink's containing
2448 set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
2449 if test "[$]*" = "X"; then
2451 set X `ls -t $srcdir/configure conftestfile`
2453 if test "[$]*" != "X $srcdir/configure conftestfile" \
2454 && test "[$]*" != "X conftestfile $srcdir/configure"; then
2456 # If neither matched, then we have a broken ls. This can happen
2457 # if, for instance, CONFIG_SHELL is bash and it inherits a
2458 # broken ls alias from the environment. This has actually
2459 # happened. Such a system could not be considered "sane".
2460 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
2461 alias in your environment])
2464 test "[$]2" = conftestfile
2470 AC_MSG_ERROR([newly created file is older than distributed files!
2471 Check your system clock])
2474 AC_MSG_RESULT(yes)])
2476 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
2477 dnl The program must properly implement --version.
2478 AC_DEFUN([AM_MISSING_PROG],
2479 [AC_MSG_CHECKING(for working $2)
2480 # Run test in a subshell; some versions of sh will print an error if
2481 # an executable is not found, even if stderr is redirected.
2482 # Redirect stdin to placate older versions of autoconf. Sigh.
2483 if ($2 --version) < /dev/null > /dev/null 2>&1; then
2485 AC_MSG_RESULT(found)
2488 AC_MSG_RESULT(missing)
2492 # Like AC_CONFIG_HEADER, but automatically create stamp file.
2494 AC_DEFUN([AM_CONFIG_HEADER],
2496 AC_CONFIG_HEADER([$1])
2497 dnl When config.status generates a header, we must update the stamp-h file.
2498 dnl This file resides in the same directory as the config header
2499 dnl that is generated. We must strip everything past the first ":",
2500 dnl and everything past the last "/".
2501 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
2502 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
2503 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
2505 for am_file in <<$1>>; do
2506 case " <<$>>CONFIG_HEADERS " in
2507 *" <<$>>am_file "*<<)>>
2508 echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
2511 am_indx=`expr "<<$>>am_indx" + 1`