1 dnl aclocal.m4 generated automatically by aclocal 1.4-p5
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 configure bits.
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}/$toprel
48 AC_SUBST(toplevel_srcdir)
52 dnl Initialize configure bits.
55 AC_DEFUN(GLIBCPP_CONFIGURE, [
57 #possibly test for the presence of the compiler sources here?
59 # Export build and source directories.
60 # These need to be absolute paths, yet at the same time need to
61 # canonicalize only relative paths, because then amd will not unmount
62 # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
63 glibcpp_builddir=`${PWDCMD-pwd}`
65 [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
66 *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
68 AC_SUBST(glibcpp_builddir)
69 AC_SUBST(glibcpp_srcdir)
71 dnl This is here just to satisfy automake.
72 ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
75 # Will set LN_S to either 'ln -s' or 'ln'. With autoconf 2.5x, can also
76 # be 'cp -p' if linking isn't available. Uncomment the next line to
77 # force a particular method.
78 #ac_cv_prog_LN_S='cp -p'
81 # We use these options to decide which functions to include.
82 AC_ARG_WITH(target-subdir,
83 [ --with-target-subdir=SUBDIR
84 configuring in a subdirectory])
85 AC_ARG_WITH(cross-host,
86 [ --with-cross-host=HOST configuring with a cross compiler])
88 glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3
89 AC_SUBST(glibcpp_basedir)
91 # Never versions of autoconf add an underscore to these functions.
92 # Prevent future problems ...
93 ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
94 ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
95 ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
96 ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
99 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
100 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
101 # are probably using a cross compiler, which will not be able to fully
102 # link an executable. This is addressed in later versions of autoconf.
104 AC_DEFUN(LIB_AC_PROG_CC,
105 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
106 dnl Fool anybody using AC_PROG_CC.
107 AC_PROVIDE([AC_PROG_CC])
108 AC_CHECK_PROG(CC, gcc, gcc)
109 if test -z "$CC"; then
110 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
111 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
116 if test $ac_cv_prog_gcc = yes; then
118 dnl Check whether -g works, even if CFLAGS is set, in case the package
119 dnl plays around with CFLAGS (such as to build both debugging and
120 dnl normal versions of a library), tasteless as that idea is.
121 ac_test_CFLAGS="${CFLAGS+set}"
122 ac_save_CFLAGS="$CFLAGS"
125 if test "$ac_test_CFLAGS" = set; then
126 CFLAGS="$ac_save_CFLAGS"
127 elif test $ac_cv_prog_cc_g = yes; then
134 test "${CFLAGS+set}" = set || CFLAGS="-g"
140 # Likewise for AC_PROG_CXX. We can't just call it directly because g++
141 # will try to link in libstdc++.
142 AC_DEFUN(LIB_AC_PROG_CXX,
143 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
144 dnl Fool anybody using AC_PROG_CXX.
145 AC_PROVIDE([AC_PROG_CXX])
146 # Use glibcpp_CXX so that we do not cause CXX to be cached with the
147 # flags that come in CXX while configuring libstdc++. They're different
148 # from those used for all other target libraries. If CXX is set in
149 # the environment, respect that here.
151 AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
152 AC_SUBST(glibcpp_CXX)
154 test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
158 if test $ac_cv_prog_gxx = yes; then
160 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
161 dnl plays around with CXXFLAGS (such as to build both debugging and
162 dnl normal versions of a library), tasteless as that idea is.
163 ac_test_CXXFLAGS="${CXXFLAGS+set}"
164 ac_save_CXXFLAGS="$CXXFLAGS"
167 if test "$ac_test_CXXFLAGS" = set; then
168 CXXFLAGS="$ac_save_CXXFLAGS"
169 elif test $ac_cv_prog_cxx_g = yes; then
176 test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
182 # For some reason, gettext needs this.
185 AC_CHECK_TOOL(AS, as)
186 AC_CHECK_TOOL(AR, ar)
187 AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
192 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
193 # at least currently, we never actually build a program, so we never
194 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
195 # fails, because we are probably configuring with a cross compiler
196 # which can't create executables. So we include AC_EXEEXT to keep
197 # automake happy, but we don't execute it, since we don't care about
200 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
201 # to nothing, so nothing would remain between `then' and `fi' if it
202 # were not for the `:' below.
207 case [$]{glibcpp_basedir} in
208 /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
209 *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
212 # Find platform-specific directories containing configuration info. In
213 # addition to possibly modifying the same flags, it also sets up symlinks.
220 dnl Check to see if g++ can compile this library, and if so, if any version-
221 dnl specific precautions need to be taken.
223 dnl GLIBCPP_CHECK_COMPILER_VERSION
224 AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
225 if test ! -f stamp-sanity-compiler; then
226 AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
233 ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above]))
235 AC_MSG_RESULT($gpp_satisfactory)
236 touch stamp-sanity-compiler
242 dnl Tests for newer compiler features, or features that are present in newer
243 dnl compiler versions but not older compiler versions still in use, should
246 dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
247 dnl new inlining code or the new system_header pragma will die on -Werror.
248 dnl Leave it out by default and use maint-mode to use it.
250 dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if
251 dnl compiler supports it and the user has not requested debug mode.
253 dnl GLIBCPP_CHECK_COMPILER_FEATURES
254 AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
255 # All these tests are for C++; save the language and the compiler flags.
256 # The CXXFLAGS thing is suspicious, but based on similar bits previously
257 # found in GLIBCPP_CONFIGURE.
260 ac_test_CXXFLAGS="${CXXFLAGS+set}"
261 ac_save_CXXFLAGS="$CXXFLAGS"
263 # Check for maintainer-mode bits.
264 if test x"$USE_MAINTAINER_MODE" = xno; then
270 # Check for -ffunction-sections -fdata-sections
271 AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
272 CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
273 AC_TRY_COMPILE(, [int foo;
274 ], [ac_fdsections=yes], [ac_fdsections=no])
275 if test "$ac_test_CXXFLAGS" = set; then
276 CXXFLAGS="$ac_save_CXXFLAGS"
278 # this is the suspicious part
281 if test x"$ac_fdsections" = x"yes" &&
282 test x"$enable_debug" = x"no"; then
283 SECTION_FLAGS='-ffunction-sections -fdata-sections'
285 AC_MSG_RESULT($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"$with_gnu_ld" = x"yes" && test x"$enable_debug" = x"no"; 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
607 dnl Because the builtins are picky picky picky about the arguments they take,
608 dnl do an explict linkage tests here.
609 dnl Check to see if the (math function) argument passed is
610 dnl 1) declared when using the c++ compiler
611 dnl 2) has "C" linkage
613 dnl Define HAVE_CARGF etc if "cargf" is declared and links
615 dnl argument 1 is name of function to check
617 dnl ASSUMES argument is a math function with ONE parameter
619 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
620 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
621 AC_MSG_CHECKING([for $1 declaration])
622 if test x${glibcpp_cv_func_$1_use+set} != xset; then
623 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
626 AC_TRY_COMPILE([#include <math.h>],
628 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
632 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
633 if test x$glibcpp_cv_func_$1_use = x"yes"; then
634 AC_MSG_CHECKING([for $1 linkage])
635 if test x${glibcpp_cv_func_$1_link+set} != xset; then
636 AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
637 AC_TRY_LINK([#include <math.h>],
639 [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
642 AC_MSG_RESULT($glibcpp_cv_func_$1_link)
643 if test x$glibcpp_cv_func_$1_link = x"yes"; then
644 ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
645 AC_DEFINE_UNQUOTED(${ac_tr_func})
652 dnl Check to see what builtin math functions are supported
654 dnl check for __builtin_abs
655 dnl check for __builtin_fabsf
656 dnl check for __builtin_fabs
657 dnl check for __builtin_fabl
658 dnl check for __builtin_labs
659 dnl check for __builtin_sqrtf
660 dnl check for __builtin_sqrtl
661 dnl check for __builtin_sqrt
662 dnl check for __builtin_sinf
663 dnl check for __builtin_sin
664 dnl check for __builtin_sinl
665 dnl check for __builtin_cosf
666 dnl check for __builtin_cos
667 dnl check for __builtin_cosl
669 dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
670 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
671 dnl Test for builtin math functions.
672 dnl These are made in gcc/c-common.c
673 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
674 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
675 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
676 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
677 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
679 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
680 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrt)
681 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
683 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
684 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
685 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
687 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
688 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
689 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
691 dnl There is, without a doubt, a more elegant way to have these
692 dnl names exported so that they won't be stripped out of acconfig.h by
693 dnl autoheader. I leave this as an exercise to somebody less frustrated
694 dnl than I.... please email the libstdc++ list if you can figure out a
695 dnl more elegant approach (see autoconf/acgen.m4 and specifically
696 dnl AC_CHECK_FUNC for things to steal.)
698 if test x$dummyvar = x"yes"; then
699 AC_DEFINE(HAVE___BUILTIN_ABS)
700 AC_DEFINE(HAVE___BUILTIN_LABS)
701 AC_DEFINE(HAVE___BUILTIN_COS)
702 AC_DEFINE(HAVE___BUILTIN_COSF)
703 AC_DEFINE(HAVE___BUILTIN_COSL)
704 AC_DEFINE(HAVE___BUILTIN_FABS)
705 AC_DEFINE(HAVE___BUILTIN_FABSF)
706 AC_DEFINE(HAVE___BUILTIN_FABSL)
707 AC_DEFINE(HAVE___BUILTIN_SIN)
708 AC_DEFINE(HAVE___BUILTIN_SINF)
709 AC_DEFINE(HAVE___BUILTIN_SINL)
710 AC_DEFINE(HAVE___BUILTIN_SQRT)
711 AC_DEFINE(HAVE___BUILTIN_SQRTF)
712 AC_DEFINE(HAVE___BUILTIN_SQRTL)
718 dnl Check to see what the underlying c library
719 dnl These checks need to do two things:
720 dnl 1) make sure the name is declared when using the c++ compiler
721 dnl 2) make sure the name has "C" linkage
722 dnl This might seem like overkill but experience has shown that it's not...
724 dnl Define HAVE_STRTOLD if "strtold" is declared and links
725 dnl Define HAVE_STRTOF if "strtof" is declared and links
726 dnl Define HAVE_DRAND48 if "drand48" is declared and links
728 dnl GLIBCPP_CHECK_STDLIB_SUPPORT
729 AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
730 ac_test_CXXFLAGS="${CXXFLAGS+set}"
731 ac_save_CXXFLAGS="$CXXFLAGS"
732 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
734 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
735 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)
736 AC_CHECK_FUNCS(drand48)
738 CXXFLAGS="$ac_save_CXXFLAGS"
743 dnl Check to see what the underlying c library or math library is like.
744 dnl These checks need to do two things:
745 dnl 1) make sure the name is declared when using the c++ compiler
746 dnl 2) make sure the name has "C" linkage
747 dnl This might seem like overkill but experience has shown that it's not...
749 dnl Define HAVE_CARGF etc if "cargf" is found.
751 dnl GLIBCPP_CHECK_MATH_SUPPORT
752 AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
753 ac_test_CXXFLAGS="${CXXFLAGS+set}"
754 ac_save_CXXFLAGS="$CXXFLAGS"
755 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
758 AC_CHECK_LIB(m, sin, libm="-lm")
762 dnl Check to see if certain C math functions exist.
763 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
764 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
765 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
766 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
767 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
768 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
769 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
770 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
772 dnl Check to see if basic C math functions have float versions.
773 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
778 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
781 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
782 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
783 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
784 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
785 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
786 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
787 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
788 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
789 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
790 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
791 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
792 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
793 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
794 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
795 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
796 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
798 dnl Check to see if basic C math functions have long double versions.
799 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
804 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
807 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
808 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
809 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
810 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
811 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
812 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
813 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
814 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
815 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
816 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
817 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
818 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
819 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
820 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
821 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
822 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
823 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
825 dnl Some runtimes have these functions with a preceding underscore. Please
826 dnl keep this sync'd with the one above. And if you add any new symbol,
827 dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
828 dnl Check to see if certain C math functions exist.
830 dnl Check to see if basic C math functions have float versions.
831 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
833 _acosf _asinf _atanf \
835 _coshf _sinhf _tanhf)
836 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
840 dnl Check to see if basic C math functions have long double versions.
841 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
843 _acosl _asinl _atanl \
845 _coshl _sinhl _tanhl)
846 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
851 CXXFLAGS="$ac_save_CXXFLAGS"
856 dnl Check to see if there is native support for complex
858 dnl Don't compile bits in math/* if native support exits.
860 dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
862 dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
863 AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
864 dnl Check for complex versions of math functions of platform.
865 AC_CHECK_LIB(m, main)
866 AC_REPLACE_MATHFUNCS(nan copysignf)
868 dnl For __signbit to signbit conversions.
869 AC_CHECK_FUNCS([__signbit], , [LIBMATHOBJS="$LIBMATHOBJS signbit.lo"])
870 AC_CHECK_FUNCS([__signbitf], , [LIBMATHOBJS="$LIBMATHOBJS signbitf.lo"])
872 dnl Compile the long double complex functions only if the function
873 dnl provides the non-complex long double functions that are needed.
874 dnl Currently this includes copysignl, which should be
875 dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
876 if test x$ac_cv_func_copysignl = x"yes"; then
877 AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"])
880 AC_SUBST(LIBMATHOBJS)
884 dnl Check to see what architecture and operating system we are compiling
885 dnl for. Also, if architecture- or OS-specific flags are required for
886 dnl compilation, pick them up here.
888 dnl GLIBCPP_CHECK_TARGET
889 AC_DEFUN(GLIBCPP_CHECK_TARGET, [
890 . [$]{glibcpp_basedir}/configure.target
891 AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
892 AC_MSG_RESULT(OS config directory is $os_include_dir)
897 dnl Check to see if this target can enable the wchar_t parts of libstdc++.
898 dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
899 dnl must have been previously checked.)
901 dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
902 dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
904 dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
905 AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
907 dnl Test wchar.h for mbstate_t, which is needed for char_traits and
908 dnl others even if wchar_t support is not on.
909 AC_MSG_CHECKING([for mbstate_t])
910 AC_TRY_COMPILE([#include <wchar.h>],
911 [mbstate_t teststate;],
912 have_mbstate_t=yes, have_mbstate_t=no)
913 AC_MSG_RESULT($have_mbstate_t)
914 if test x"$have_mbstate_t" = xyes; then
915 AC_DEFINE(HAVE_MBSTATE_T)
918 dnl Sanity check for existence of ISO C99 headers for extended encoding.
919 AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
920 AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
922 dnl Only continue checking if the ISO C99 headers exist and support is on.
923 if test x"$ac_has_wchar_h" = xyes &&
924 test x"$ac_has_wctype_h" = xyes &&
925 test x"$enable_c_mbchar" != xno; then
927 dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
928 dnl numeric_limits can instantiate type_traits<wchar_t>
929 AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
930 AC_TRY_COMPILE([#include <wchar.h>],
931 [int i = WCHAR_MIN; int j = WCHAR_MAX;],
932 has_wchar_minmax=yes, has_wchar_minmax=no)
933 AC_MSG_RESULT($has_wchar_minmax)
935 dnl Test wchar.h for WEOF, which is what we use to determine whether
936 dnl to specialize for char_traits<wchar_t> or not.
937 AC_MSG_CHECKING([for WEOF])
940 #include <stddef.h>],
942 has_weof=yes, has_weof=no)
943 AC_MSG_RESULT($has_weof)
945 dnl Tests for wide character functions used in char_traits<wchar_t>.
947 AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \
950 dnl Checks for names injected into std:: by the c_std headers.
951 AC_CHECK_FUNCS(btowc wctob fgetwc fgetwc fgetws fputwc fputws fwide \
952 fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
953 vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
954 mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
955 wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
956 wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \
959 AC_MSG_CHECKING([for ISO C99 wchar_t support])
960 if test x"$has_weof" = xyes &&
961 test x"$has_wchar_minmax" = xyes &&
962 test x"$ac_wfuncs" = xyes; then
963 ac_isoC99_wchar_t=yes
967 AC_MSG_RESULT($ac_isoC99_wchar_t)
969 dnl Use iconv for wchar_t to char conversions. As such, check for
970 dnl X/Open Portability Guide, version 2 features (XPG2).
971 AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
972 AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
974 dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
975 AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
977 LIBS="$LIBS $libiconv"
979 AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
980 ac_XPG2funcs=yes, ac_XPG2funcs=no)
984 AC_MSG_CHECKING([for XPG2 wchar_t support])
985 if test x"$ac_has_iconv_h" = xyes &&
986 test x"$ac_has_langinfo_h" = xyes &&
987 test x"$ac_XPG2funcs" = xyes; then
992 AC_MSG_RESULT($ac_XPG2_wchar_t)
994 dnl At the moment, only enable wchar_t specializations if all the
995 dnl above support is present.
996 AC_MSG_CHECKING([for enabled wchar_t specializations])
997 if test x"$ac_isoC99_wchar_t" = xyes &&
998 test x"$ac_XPG2_wchar_t" = xyes; then
999 AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
1000 AC_MSG_RESULT("yes")
1005 dnl Wide characters disabled by the user.
1006 AC_MSG_WARN([wchar_t support disabled.])
1012 dnl Check for special debugging mode; not for production use.
1014 dnl GLIBCPP_ENABLE_DEBUG
1015 dnl --enable-debug sets '-ggdb3 -O0'.
1016 dnl --disable-debug sets '-g' and whatever optimization options the
1017 dnl compiler can handle.
1018 dnl + --enable-maintainer-mode automatically defaults this to on.
1019 dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...?
1020 dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
1021 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1022 dnl defaults to `no'.
1023 AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
1024 define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
1025 AC_ARG_ENABLE(debug,
1026 changequote(<<, >>)dnl
1027 << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
1028 changequote([, ])dnl
1029 [case "${enableval}" in
1030 yes) enable_debug=yes ;;
1031 no) enable_debug=no ;;
1032 *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
1034 enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
1036 dnl Option parsed, now set things appropriately
1037 case "${enable_debug}" in
1039 DEBUG_FLAGS='-O0 -ggdb3'
1045 AC_SUBST(DEBUG_FLAGS)
1050 dnl Check for "unusual" flags to pass to the compiler while building.
1052 dnl GLIBCPP_ENABLE_CXX_FLAGS
1053 dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
1054 dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
1055 dnl Somehow this same set of flags must be passed when [re]building
1057 dnl --disable-cxx-flags passes nothing.
1058 dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
1059 dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
1060 dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
1061 dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags)
1062 dnl If "default flags" is an empty string (or "none"), the effect is
1063 dnl the same as --disable or --enable=no.
1064 AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
1065 define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1066 AC_ARG_ENABLE(cxx-flags,
1067 changequote(<<, >>)dnl
1068 << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
1069 [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
1070 changequote([, ])dnl
1071 [case "x$enableval" in
1073 AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
1075 enable_cxx_flags='' ;;
1077 enable_cxx_flags="$enableval" ;;
1079 enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT')
1081 dnl Thinko on my part during design. This kludge is the workaround.
1082 if test "$enable_cxx_flags" = "none"; then
1083 enable_cxx_flags='';
1086 dnl Run through flags (either default or command-line) and set anything
1087 dnl extra (e.g., #defines) that must accompany particular g++ options.
1088 if test -n "$enable_cxx_flags"; then
1089 for f in $enable_cxx_flags; do
1093 *) # and we're trying to pass /what/ exactly?
1094 AC_MSG_ERROR([compiler flags start with a -]) ;;
1098 EXTRA_CXX_FLAGS="$enable_cxx_flags"
1099 AC_SUBST(EXTRA_CXX_FLAGS)
1104 dnl Check for which locale library to use: gnu or generic.
1106 dnl GLIBCPP_ENABLE_CLOCALE
1107 dnl --enable-clocale=gnu sets config/locale/c_locale_gnu.cc and friends
1108 dnl --enable-clocale=generic sets config/locale/c_locale_generic.cc and friends
1110 dnl default is generic
1112 AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
1113 AC_MSG_CHECKING([for clocale to use])
1114 AC_ARG_ENABLE(clocale,
1115 [ --enable-clocale enable model for target locale package.
1116 --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic]
1118 if test x$enable_clocale = xno; then
1123 enable_clocale_flag=$enable_clocale
1125 dnl Probe for locale support if no specific model is specified.
1126 dnl Default to "generic"
1127 if test x$enable_clocale_flag = xno; then
1128 case x${target_os} in
1130 AC_EGREP_CPP([_GLIBCPP_ok], [
1131 #include <features.h>
1132 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1135 ], enable_clocale_flag=gnu, enable_clocale_flag=generic)
1137 # Test for bugs early in glibc-2.2.x series
1138 if test x$enable_clocale_flag = xgnu; then
1140 #define _GNU_SOURCE 1
1144 const char __one[] = "Äuglein Augmen";
1145 const char __two[] = "Äuglein";
1150 loc = __newlocale(1 << LC_ALL, "de_DE", 0);
1151 loc_dup = __duplocale(loc);
1152 i = __strcoll_l(__one, __two, loc);
1153 j = __strcoll_l(__one, __two, loc_dup);
1157 [enable_clocale_flag=gnu],[enable_clocale_flag=generic],
1158 [enable_clocale_flag=generic])
1161 # ... at some point put __strxfrm_l tests in as well.
1164 enable_clocale_flag=generic
1169 dnl Deal with gettext issues.
1171 [ --enable-nls use Native Language Support (default)],
1175 dnl Set configure bits for specified locale package
1176 case x${enable_clocale_flag} in
1178 AC_MSG_RESULT(generic)
1180 CLOCALE_H=config/locale/generic/c_locale.h
1181 CLOCALE_CC=config/locale/generic/c_locale.cc
1182 CCODECVT_H=config/locale/generic/codecvt_specializations.h
1183 CCOLLATE_CC=config/locale/generic/collate_members.cc
1184 CCTYPE_CC=config/locale/generic/ctype_members.cc
1185 CMESSAGES_H=config/locale/generic/messages_members.h
1186 CMESSAGES_CC=config/locale/generic/messages_members.cc
1187 CMONEY_CC=config/locale/generic/monetary_members.cc
1188 CNUMERIC_CC=config/locale/generic/numeric_members.cc
1189 CTIME_CC=config/locale/generic/time_members.cc
1194 # Declare intention to use gettext, and add support for specific
1196 # For some reason, ALL_LINGUAS has to be before AM-GNU-GETTEXT
1199 # Don't call AM-GNU-GETTEXT here. Instead, assume glibc.
1200 AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no)
1201 if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
1204 # Export the build objects.
1205 for ling in $ALL_LINGUAS; do \
1206 glibcpp_MOFILES="$glibcpp_MOFILES $ling.mo"; \
1207 glibcpp_POFILES="$glibcpp_POFILES $ling.po"; \
1209 AC_SUBST(glibcpp_MOFILES)
1210 AC_SUBST(glibcpp_POFILES)
1212 CLOCALE_H=config/locale/gnu/c_locale.h
1213 CLOCALE_CC=config/locale/gnu/c_locale.cc
1214 CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
1215 CCOLLATE_CC=config/locale/gnu/collate_members.cc
1216 CCTYPE_CC=config/locale/gnu/ctype_members.cc
1217 CMESSAGES_H=config/locale/gnu/messages_members.h
1218 CMESSAGES_CC=config/locale/gnu/messages_members.cc
1219 CMONEY_CC=config/locale/gnu/monetary_members.cc
1220 CNUMERIC_CC=config/locale/gnu/numeric_members.cc
1221 CTIME_CC=config/locale/gnu/time_members.cc
1224 AC_MSG_RESULT(generic)
1226 CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
1227 CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
1228 CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
1229 CCOLLATE_CC=config/locale/generic/collate_members.cc
1230 CCTYPE_CC=config/locale/generic/ctype_members.cc
1231 CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h
1232 CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc
1233 CMONEY_CC=config/locale/generic/monetary_members.cc
1234 CNUMERIC_CC=config/locale/generic/numeric_members.cc
1235 CTIME_CC=config/locale/generic/time_members.cc
1238 echo "$enable_clocale is an unknown locale package" 1>&2
1243 # This is where the testsuite looks for locale catalogs, using the
1244 # -DLOCALEDIR define during testsuite compilation.
1245 glibcpp_localedir=${glibcpp_builddir}/po/share/locale
1246 AC_SUBST(glibcpp_localedir)
1250 AC_SUBST(CCODECVT_H)
1251 AC_SUBST(CMESSAGES_H)
1252 AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc)
1253 AC_LINK_FILES($CCOLLATE_CC, src/collate.cc)
1254 AC_LINK_FILES($CCTYPE_CC, src/ctype.cc)
1255 AC_LINK_FILES($CMESSAGES_CC, src/messages.cc)
1256 AC_LINK_FILES($CMONEY_CC, src/monetary.cc)
1257 AC_LINK_FILES($CNUMERIC_CC, src/numeric.cc)
1258 AC_LINK_FILES($CTIME_CC, src/time.cc)
1263 dnl Check for which I/O library to use: libio, or something specific.
1265 dnl GLIBCPP_ENABLE_CSTDIO
1266 dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
1268 dnl default is stdio
1270 AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
1271 AC_MSG_CHECKING([for cstdio to use])
1272 AC_ARG_ENABLE(cstdio,
1273 [ --enable-cstdio enable stdio for target io package.
1274 --enable-cstdio=LIB use LIB target-speific io package. [default=stdio]
1276 if test x$enable_cstdio = xno; then
1279 enable_cstdio=stdio)
1281 enable_cstdio_flag=$enable_cstdio
1283 dnl Check if a valid I/O package
1284 case x${enable_cstdio_flag} in
1286 CSTDIO_H=config/io/c_io_libio.h
1287 BASIC_FILE_H=config/io/basic_file_libio.h
1288 BASIC_FILE_CC=config/io/basic_file_libio.cc
1289 AC_MSG_RESULT(libio)
1291 # see if we are on a system with libio native (ie, linux)
1292 AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
1294 # Need to check and see what version of glibc is being used. If
1295 # it's not glibc-2.2 or higher, then we'll need to go ahead and
1296 # compile most of libio for linux systems.
1297 if test x$has_libio = x"yes"; then
1300 AC_MSG_CHECKING([for glibc version >= 2.2])
1301 AC_EGREP_CPP([ok], [
1302 #include <features.h>
1303 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1306 ], glibc_satisfactory=yes, glibc_satisfactory=no)
1307 AC_MSG_RESULT($glibc_satisfactory)
1311 # XXX at the moment, admit defeat and force the recompilation
1312 # XXX of glibc even on glibc-2.2 systems, because libio is not synched.
1313 glibc_satisfactory=no
1315 if test x$glibc_satisfactory = x"yes"; then
1320 # bkoz XXX need to add checks to enable this
1321 # pme XXX here's a first pass at such a check
1322 if test x$enable_c_mbchar != xno; then
1330 # Using libio, but <libio.h> doesn't exist on the target system. . .
1332 # bkoz XXX need to add checks to enable this
1333 # pme XXX here's a first pass at such a check
1334 if test x$enable_c_mbchar != xno; then
1341 xstdio | x | xno | xnone | xyes)
1343 CSTDIO_H=config/io/c_io_stdio.h
1344 BASIC_FILE_H=config/io/basic_file_stdio.h
1345 BASIC_FILE_CC=config/io/basic_file_stdio.cc
1346 AC_MSG_RESULT(stdio)
1348 # We're not using stdio.
1353 echo "$enable_cstdio is an unknown io package" 1>&2
1358 AC_SUBST(BASIC_FILE_H)
1359 AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc)
1361 # 2000-08-04 bkoz hack
1362 CCODECVT_C=config/io/c_io_libio_codecvt.c
1363 AC_SUBST(CCODECVT_C)
1364 # 2000-08-04 bkoz hack
1366 AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
1367 test "$need_libio" = yes || test "$need_wlibio" = yes)
1368 AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
1369 AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
1370 if test "$need_libio" = yes || test "$need_wlibio" = yes; then
1371 libio_la=../libio/libio.la
1380 dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
1381 dnl We must stage the required headers so that they will be installed
1382 dnl with the library (unlike libgcc, the STL implementation is provided
1383 dnl solely within headers). Since we must not inject random user-space
1384 dnl macro names into user-provided C++ code, we first stage into <file>-in
1385 dnl and process to <file> with an output command. The reason for a two-
1386 dnl stage process here is to correctly handle $srcdir!=$objdir without
1387 dnl having to write complex code (the sed commands to clean the macro
1388 dnl namespace are complex and fragile enough as it is). We must also
1389 dnl add a relative path so that -I- is supported properly.
1391 AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
1392 AC_MSG_CHECKING([for thread model used by GCC])
1393 target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
1394 AC_MSG_RESULT([$target_thread_file])
1396 if test $target_thread_file != single; then
1397 AC_DEFINE(HAVE_GTHR_DEFAULT)
1398 AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__)
1401 glibcpp_thread_h=gthr-$target_thread_file.h
1402 AC_SUBST(glibcpp_thread_h)
1407 dnl Check for exception handling support. If an explicit enable/disable
1408 dnl sjlj exceptions is given, we don't have to detect. Otherwise the
1409 dnl target may or may not support call frame exceptions.
1411 dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
1412 dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
1413 dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
1415 dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it.
1417 AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [
1418 AC_MSG_CHECKING([for exception model to use])
1421 AC_ARG_ENABLE(sjlj-exceptions,
1422 [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
1424 [dnl Botheration. Now we've got to detect the exception model.
1425 dnl Link tests against libgcc.a are problematic since -- at least
1426 dnl as of this writing -- we've not been given proper -L bits for
1427 dnl single-tree newlib and libgloss.
1429 dnl This is what AC_TRY_COMPILE would do if it didn't delete the
1430 dnl conftest files before we got a change to grep them first.
1431 cat > conftest.$ac_ext << EOF
1432 [#]line __oline__ "configure"
1441 old_CXXFLAGS="$CXXFLAGS"
1443 if AC_TRY_EVAL(ac_compile); then
1444 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
1445 enable_sjlj_exceptions=yes
1446 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
1447 enable_sjlj_exceptions=no
1450 CXXFLAGS="$old_CXXFLAGS"
1452 if test x$enable_sjlj_exceptions = xyes; then
1453 AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1,
1454 [Define if the compiler is configured for setjmp/longjmp exceptions.])
1455 ac_exception_model_name=sjlj
1456 elif test x$enable_sjlj_exceptions = xno; then
1457 ac_exception_model_name="call frame"
1459 AC_MSG_ERROR([unable to detect exception model])
1462 AC_MSG_RESULT($ac_exception_model_name)
1467 dnl Check for libunwind exception handling support. If enabled then
1468 dnl we assume that the _Unwind_* functions that make up the Unwind ABI
1469 dnl (_Unwind_RaiseException, _Unwind_Resume, etc.) are defined by
1470 dnl libunwind instead of libgcc and that libstdc++ has a dependency
1471 dnl on libunwind as well as libgcc.
1473 dnl GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS
1474 dnl --enable-libunwind-exceptions forces the use of libunwind.
1475 dnl --disable-libunwind-exceptions assumes there is no libunwind.
1477 dnl Define _GLIBCPP_LIBUNWIND_EXCEPTIONS if requested.
1479 AC_DEFUN(GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS, [
1480 AC_MSG_CHECKING([for use of libunwind])
1481 AC_ARG_ENABLE(libunwind-exceptions,
1482 [ --enable-libunwind-exceptions force use of libunwind for exceptions],
1483 use_libunwind_exceptions=$enableval,
1484 use_libunwind_exceptions=no)
1485 AC_MSG_RESULT($use_libunwind_exceptions)
1486 dnl Option parsed, now set things appropriately
1487 if test x"$use_libunwind_exceptions" = xyes; then
1488 LIBUNWIND_FLAG="-lunwind"
1492 AC_SUBST(LIBUNWIND_FLAG)
1496 dnl Check for ISO/IEC 9899:1999 "C99" support.
1498 dnl GLIBCPP_ENABLE_C99
1499 dnl --enable-c99 defines _GLIBCPP_USE_C99
1500 dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined
1501 dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)]
1502 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1503 dnl defaults to `no'.
1504 dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
1506 dnl GLIBCPP_ENABLE_C99
1507 AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl
1508 define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl
1511 changequote(<<, >>)dnl
1512 <<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT],
1513 changequote([, ])dnl
1514 [case "$enableval" in
1515 yes) enable_c99=yes ;;
1516 no) enable_c99=no ;;
1517 *) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
1519 enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl
1524 # Check for the existence of <math.h> functions used if C99 is enabled.
1526 AC_MSG_CHECKING([for ISO C99 support in <math.h>])
1527 AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
1528 AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
1529 AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
1530 AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
1531 AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
1532 AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
1533 AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
1534 AC_TRY_COMPILE([#include <math.h>],
1535 [isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
1536 AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
1537 AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
1538 AC_TRY_COMPILE([#include <math.h>],
1539 [islessgreater(0.0,0.0);],, [ac_c99_math=no])
1540 AC_TRY_COMPILE([#include <math.h>],
1541 [isunordered(0.0,0.0);],, [ac_c99_math=no])
1542 AC_MSG_RESULT($ac_c99_math)
1544 # Check for the existence in <stdio.h> of vscanf, et. al.
1546 AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
1547 AC_TRY_COMPILE([#include <stdio.h>],
1548 [snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
1549 AC_TRY_COMPILE([#include <stdio.h>
1551 void foo(char* fmt, ...)
1552 {va_list args; va_start(args, fmt);
1553 vfscanf(stderr, "%i", args);}],
1554 [],, [ac_c99_stdio=no])
1555 AC_TRY_COMPILE([#include <stdio.h>
1557 void foo(char* fmt, ...)
1558 {va_list args; va_start(args, fmt);
1559 vscanf("%i", args);}],
1560 [],, [ac_c99_stdio=no])
1561 AC_TRY_COMPILE([#include <stdio.h>
1563 void foo(char* fmt, ...)
1564 {va_list args; va_start(args, fmt);
1565 vsnprintf(fmt, 0, "%i", args);}],
1566 [],, [ac_c99_stdio=no])
1567 AC_TRY_COMPILE([#include <stdio.h>
1569 void foo(char* fmt, ...)
1570 {va_list args; va_start(args, fmt);
1571 vsscanf(fmt, "%i", args);}],
1572 [],, [ac_c99_stdio=no])
1573 AC_MSG_RESULT($ac_c99_stdio)
1575 # Check for the existence in <stdlib.h> of lldiv_t, et. al.
1577 AC_MSG_CHECKING([for lldiv_t declaration])
1578 AC_CACHE_VAL(ac_c99_lldiv_t, [
1579 AC_TRY_COMPILE([#include <stdlib.h>],
1581 [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
1583 AC_MSG_RESULT($ac_c99_lldiv_t)
1585 AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
1586 AC_TRY_COMPILE([#include <stdlib.h>],
1587 [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
1588 AC_TRY_COMPILE([#include <stdlib.h>],
1589 [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
1590 AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
1591 AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
1592 AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
1593 AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
1594 if test x"$ac_c99_lldiv_t" = x"no"; then
1597 AC_MSG_RESULT($ac_c99_stdlib)
1599 # Check for the existence of <wchar.h> functions used if C99 is enabled.
1600 # XXX the wchar.h checks should be rolled into the general C99 bits.
1602 AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
1603 AC_TRY_COMPILE([#include <wchar.h>],
1604 [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
1605 AC_TRY_COMPILE([#include <wchar.h>],
1606 [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
1607 AC_TRY_COMPILE([#include <wchar.h>],
1608 [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
1609 AC_MSG_RESULT($ac_c99_wchar)
1611 AC_MSG_CHECKING([for enabled ISO C99 support])
1612 if test x"$ac_c99_math" = x"no" ||
1613 test x"$ac_c99_stdio" = x"no" ||
1614 test x"$ac_c99_stdlib" = x"no" ||
1615 test x"$ac_c99_wchar" = x"no"; then
1618 AC_MSG_RESULT($enable_c99)
1620 # Option parsed, now set things appropriately
1621 if test x"$enable_c99" = x"yes"; then
1622 AC_DEFINE(_GLIBCPP_USE_C99)
1630 dnl Check for template specializations for the 'long long' type extension.
1631 dnl The result determines only whether 'long long' I/O is enabled; things
1632 dnl like numeric_limits<> specializations are always available.
1634 dnl GLIBCPP_ENABLE_LONG_LONG
1635 dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
1636 dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
1637 dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
1638 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1639 dnl defaults to `no'.
1640 dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
1642 dnl GLIBCPP_ENABLE_LONG_LONG
1643 AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
1644 define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
1646 AC_ARG_ENABLE(long-long,
1647 changequote(<<, >>)dnl
1648 <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
1649 changequote([, ])dnl
1650 [case "$enableval" in
1651 yes) enable_long_long=yes ;;
1652 no) enable_long_long=no ;;
1653 *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
1655 enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
1660 AC_MSG_CHECKING([for enabled long long I/O support])
1661 # iostreams require strtoll, strtoull to compile
1662 AC_TRY_COMPILE([#include <stdlib.h>],
1663 [char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
1664 AC_TRY_COMPILE([#include <stdlib.h>],
1665 [char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
1667 # Option parsed, now set things appropriately
1668 if test x"$enable_long_long" = xyes; then
1669 AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
1671 AC_MSG_RESULT($enable_long_long)
1678 dnl Check for what kind of C headers to use.
1680 dnl GLIBCPP_ENABLE_CHEADERS
1681 dnl --enable-cheaders= [does stuff].
1682 dnl --disable-cheaders [does not do anything, really].
1683 dnl + This will eventually need to be 'c_shadow' by default.
1684 dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)]
1685 dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'.
1686 dnl If ommitted, it defaults to `c_std'.
1687 AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
1688 define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
1689 AC_MSG_CHECKING([for c header strategy to use])
1690 AC_ARG_ENABLE(cheaders,
1691 changequote(<<, >>)dnl
1692 << --enable-cheaders construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
1694 [case "$enableval" in
1699 enable_cheaders=c_std
1702 enable_cheaders=c_shadow
1704 *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
1707 enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
1708 AC_MSG_RESULT($enable_cheaders)
1710 dnl Option parsed, now set things appropriately
1711 case "$enable_cheaders" in
1713 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow'
1716 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std'
1719 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c'
1723 AC_SUBST(C_INCLUDE_DIR)
1724 AM_CONDITIONAL(GLIBCPP_C_HEADERS_C, test "$enable_cheaders" = c)
1725 AM_CONDITIONAL(GLIBCPP_C_HEADERS_C_STD, test "$enable_cheaders" = c_std)
1726 AM_CONDITIONAL(GLIBCPP_C_HEADERS_COMPATIBILITY, test "$c_compatibility" = yes)
1731 dnl Check for wide character support. Has the same effect as the option
1732 dnl in gcc's configure, but in a form that autoconf can mess with.
1734 dnl GLIBCPP_ENABLE_C_MBCHAR
1735 dnl --enable-c-mbchar requests all the wchar_t stuff.
1736 dnl --disable-c-mbchar doesn't.
1737 dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
1738 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1739 dnl defaults to `no'.
1740 AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
1741 define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
1742 AC_ARG_ENABLE(c-mbchar,
1743 changequote(<<, >>)dnl
1744 << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
1745 changequote([, ])dnl
1746 [case "$enableval" in
1747 yes) enable_c_mbchar=yes ;;
1748 no) enable_c_mbchar=no ;;
1749 *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
1751 enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
1752 dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
1757 dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
1759 dnl TOPLEVEL_INCLUDES
1760 dnl LIBMATH_INCLUDES
1761 dnl LIBSUPCXX_INCLUDES
1763 dnl CSHADOW_INCLUDES
1765 dnl GLIBCPP_EXPORT_INCLUDES
1766 AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
1767 # Root level of the build directory include sources.
1768 GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include"
1770 # Passed down for canadian crosses.
1771 if test x"$CANADIAN" = xyes; then
1772 TOPLEVEL_INCLUDES='-I$(includedir)'
1775 LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
1777 LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
1779 if test x"$need_libio" = xyes; then
1780 LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
1781 AC_SUBST(LIBIO_INCLUDES)
1784 # Now, export this to all the little Makefiles....
1785 AC_SUBST(GLIBCPP_INCLUDES)
1786 AC_SUBST(TOPLEVEL_INCLUDES)
1787 AC_SUBST(LIBMATH_INCLUDES)
1788 AC_SUBST(LIBSUPCXX_INCLUDES)
1793 dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
1795 AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
1796 # Optimization flags that are probably a good idea for thrill-seekers. Just
1797 # uncomment the lines below and make, everything else is ready to go...
1798 # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
1800 AC_SUBST(OPTIMIZE_CXXFLAGS)
1802 WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
1803 AC_SUBST(WARN_FLAGS)
1807 dnl GLIBCPP_EXPORT_INSTALL_INFO
1808 dnl calculates gxx_install_dir
1809 dnl exports glibcpp_toolexecdir
1810 dnl exports glibcpp_toolexeclibdir
1811 dnl exports glibcpp_prefixdir
1813 dnl Assumes cross_compiling bits already done, and with_cross_host in
1816 dnl GLIBCPP_EXPORT_INSTALL_INFO
1817 AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
1818 # Assumes glibcpp_builddir, glibcpp_srcdir are alreay set up and
1819 # exported correctly in GLIBCPP_CONFIGURE.
1820 glibcpp_toolexecdir=no
1821 glibcpp_toolexeclibdir=no
1822 glibcpp_prefixdir=${prefix}
1824 # Process the option --with-gxx-include-dir=<path to include-files directory>
1825 AC_MSG_CHECKING([for --with-gxx-include-dir])
1826 AC_ARG_WITH(gxx-include-dir,
1827 [ --with-gxx-include-dir the installation directory for include files],
1828 [case "${withval}" in
1830 AC_MSG_ERROR(Missing directory for --with-gxx-include-dir)
1837 gxx_include_dir=${withval}
1839 esac], [gxx_include_dir=no])
1840 AC_MSG_RESULT($gxx_include_dir)
1842 # Process the option "--enable-version-specific-runtime-libs"
1843 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
1844 AC_ARG_ENABLE(version-specific-runtime-libs,
1845 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
1846 [case "$enableval" in
1847 yes) version_specific_libs=yes ;;
1848 no) version_specific_libs=no ;;
1849 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
1851 version_specific_libs=no)dnl
1852 # Option set, now we can test it.
1853 AC_MSG_RESULT($version_specific_libs)
1855 # Get the gcc version number. This is lifted from gcc/configure.in
1856 AC_MSG_CHECKING([for gcc version number])
1858 gcc_version_trigger=${srcdir}/../gcc/version.c
1859 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
1860 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1862 AC_MSG_RESULT($gcc_version)
1864 # Default case for install directory for include files.
1865 if test $version_specific_libs = no && test $gxx_include_dir = no; then
1866 gxx_include_dir='$(prefix)'/include/c++/${gcc_version}
1869 # Version-specific runtime libs processing.
1870 if test $version_specific_libs = yes; then
1871 # Need the gcc compiler version to know where to install libraries
1872 # and header files if --enable-version-specific-runtime-libs option
1874 if test x"$gxx_include_dir" = x"no"; then
1875 gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/c++
1877 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1878 glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
1881 # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
1882 # Install a library built with a cross compiler in tooldir, not libdir.
1883 if test x"$glibcpp_toolexecdir" = x"no"; then
1884 if test -n "$with_cross_host" &&
1885 test x"$with_cross_host" != x"no"; then
1886 glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
1887 glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)'
1889 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1890 glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)'
1894 AC_MSG_CHECKING([for install location])
1895 AC_MSG_RESULT($gxx_include_dir)
1897 AC_SUBST(glibcpp_prefixdir)
1898 AC_SUBST(gxx_include_dir)
1899 AC_SUBST(glibcpp_toolexecdir)
1900 AC_SUBST(glibcpp_toolexeclibdir)
1904 # Check for functions in math library.
1905 # Ulrich Drepper <drepper@cygnus.com>, 1998.
1907 # This file can be copied and used freely without restrictions. It can
1908 # be used in projects which are not available under the GNU Public License
1909 # but which still want to provide support for the GNU gettext functionality.
1910 # Please note that the actual code is *not* freely available.
1914 dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
1915 AC_DEFUN(AC_REPLACE_MATHFUNCS,
1916 [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])])
1919 dnl This macro searches for a GNU version of make. If a match is found, the
1920 dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
1921 dnl set to "#". This is useful for including a special features in a Makefile,
1922 dnl which cannot be handled by other versions of make. The variable
1923 dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
1924 dnl the empty string otherwise.
1926 dnl Here is an example of its use:
1928 dnl Makefile.in might contain:
1930 dnl # A failsafe way of putting a dependency rule into a makefile
1932 dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
1934 dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
1935 dnl @ifGNUmake@ include $(DEPEND)
1936 dnl @ifGNUmake@ endif
1938 dnl Then configure.in would normally contain:
1940 dnl CHECK_GNU_MAKE()
1941 dnl AC_OUTPUT(Makefile)
1943 dnl Then perhaps to cause gnu make to override any other make, we could do
1944 dnl something like this (note that GNU make always looks for GNUmakefile first):
1946 dnl if ! test x$_cv_gnu_make_command = x ; then
1947 dnl mv Makefile GNUmakefile
1948 dnl echo .DEFAULT: > Makefile ;
1949 dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
1952 dnl Then, if any (well almost any) other make is called, and GNU make also
1953 dnl exists, then the other make wraps the GNU make.
1955 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
1956 dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
1958 dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending
1959 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
1960 dnl #### conditional's subshell (" --version" is not a command), using a
1961 dnl #### different option to grep(1).
1963 dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not
1964 dnl #### ${MAKE:-make}).
1967 GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
1968 _cv_gnu_make_command='' ;
1969 dnl Search all the common names for GNU make
1970 for a in "${MAKE-make}" make gmake gnumake ; do
1971 if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
1973 _cv_gnu_make_command=$a ;
1978 dnl If there was a GNU version, then set @ifGNUmake@ to the empty
1979 dnl string, '#' otherwise
1980 if test "x$_cv_gnu_make_command" != "x" ; then
1989 dnl Check for headers for, and arguments to, the setrlimit() function.
1990 dnl Used only in testsuite_hooks.h.
1991 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [
1992 AC_TRY_COMPILE([#include <unistd.h>
1993 #include <sys/time.h>
1994 #include <sys/resource.h>
1995 ], [ int f = RLIMIT_$1 ; ],
1996 [glibcpp_mresult=1], [glibcpp_mresult=0])
1997 AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult,
1998 [Only used in build directory testsuite_hooks.h.])
2000 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [
2001 setrlimit_have_headers=yes
2002 AC_CHECK_HEADERS(unistd.h sys/time.h sys/resource.h,
2004 setrlimit_have_headers=no)
2005 # If don't have the headers, then we can't run the tests now, and we
2006 # won't be seeing any of these during testsuite compilation.
2007 if test $setrlimit_have_headers = yes; then
2008 # Can't do these in a loop, else the resulting syntax is wrong.
2009 GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA)
2010 GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS)
2011 GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM)
2012 GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS)
2014 # Check for rlimit, setrlimit.
2015 AC_CACHE_VAL(ac_setrlimit, [
2016 AC_TRY_COMPILE([#include <unistd.h>
2017 #include <sys/time.h>
2018 #include <sys/resource.h>
2020 [ struct rlimit r; setrlimit(0, &r);],
2021 [ac_setrlimit=yes], [ac_setrlimit=no])
2025 AC_MSG_CHECKING([for testsuite memory limit support])
2026 if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
2028 AC_DEFINE(_GLIBCPP_MEM_LIMITS)
2032 AC_MSG_RESULT($ac_mem_limits)
2037 dnl Does any necessary configuration of the testsuite directory. Generates
2038 dnl the testsuite_hooks.h header.
2040 dnl GLIBCPP_CONFIGURE_TESTSUITE [no args]
2041 AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [
2042 GLIBCPP_CHECK_SETRLIMIT
2044 # Look for setenv, so that extended locale tests can be performed.
2045 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
2049 sinclude(../libtool.m4)
2050 dnl The lines below arrange for aclocal not to bring an installed
2051 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
2052 dnl add a definition of LIBTOOL to Makefile.in.
2053 ifelse(,,,[AC_SUBST(LIBTOOL)
2054 AC_DEFUN([AM_PROG_LIBTOOL])
2055 AC_DEFUN([AC_LIBTOOL_DLOPEN])
2056 AC_DEFUN([AC_PROG_LD])
2060 # Check whether LC_MESSAGES is available in <locale.h>.
2061 # Ulrich Drepper <drepper@cygnus.com>, 1995.
2063 # This file file be copied and used freely without restrictions. It can
2064 # be used in projects which are not available under the GNU Public License
2065 # but which still want to provide support for the GNU gettext functionality.
2066 # Please note that the actual code is *not* freely available.
2070 AC_DEFUN(AC_LC_MESSAGES, [
2071 AC_CHECK_HEADER(locale.h, [
2072 AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
2073 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
2074 ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
2075 if test $ac_cv_val_LC_MESSAGES = yes; then
2076 AC_DEFINE(HAVE_LC_MESSAGES)
2083 dnl Check for whether the Boost-derived checks should be turned on.
2085 dnl GLIBCPP_ENABLE_CONCEPT_CHECKS
2086 dnl --enable-concept-checks turns them on.
2087 dnl --disable-concept-checks leaves them off.
2088 dnl + Usage: GLIBCPP_ENABLE_CONCEPT_CHECKS[(DEFAULT)]
2089 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
2090 dnl defaults to `no'.
2091 AC_DEFUN(GLIBCPP_ENABLE_CONCEPT_CHECKS, [dnl
2092 define([GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT], ifelse($1, yes, yes, no))dnl
2093 AC_ARG_ENABLE(concept-checks,
2094 changequote(<<, >>)dnl
2095 << --enable-concept-checks use Boost-derived template checks [default=>>GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT],
2096 changequote([, ])dnl
2097 [case "$enableval" in
2098 yes) enable_concept_checks=yes ;;
2099 no) enable_concept_checks=no ;;
2100 *) AC_MSG_ERROR([Unknown argument to enable/disable concept checks]) ;;
2102 enable_concept_checks=GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT)dnl
2103 dnl Option parsed, now set things appropriately
2104 if test x"$enable_concept_checks" = xyes; then
2105 AC_DEFINE(_GLIBCPP_CONCEPT_CHECKS)
2111 dnl Add version tags to symbols in shared library (or not), additionally
2112 dnl marking other symbols as private/local (or not).
2114 dnl GLIBCPP_ENABLE_SYMVERS
2115 dnl --enable-symvers=style adds a version script to the linker call when
2116 dnl creating the shared library. The choice of version script is
2117 dnl controlled by 'style'.
2118 dnl --disable-symvers does not.
2119 dnl + Usage: GLIBCPP_ENABLE_SYMVERS[(DEFAULT)]
2120 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
2121 dnl defaults to `no'. Passing `yes' tries to choose a default style
2122 dnl based on linker characteristics. Passing 'no' disables versioning.
2123 AC_DEFUN(GLIBCPP_ENABLE_SYMVERS, [dnl
2124 define([GLIBCPP_ENABLE_SYMVERS_DEFAULT], ifelse($1, yes, yes, no))dnl
2125 AC_ARG_ENABLE(symvers,
2126 changequote(<<, >>)dnl
2127 << --enable-symvers=style enables symbol versioning of the shared library [default=>>GLIBCPP_ENABLE_SYMVERS_DEFAULT],
2128 changequote([, ])dnl
2129 [case "$enableval" in
2130 yes) enable_symvers=yes ;;
2131 no) enable_symvers=no ;;
2132 # other names here, just as sanity checks
2133 #gnu|sun|etcetera) enable_symvers=$enableval ;;
2134 gnu) enable_symvers=$enableval ;;
2135 *) AC_MSG_ERROR([Unknown argument to enable/disable symvers]) ;;
2137 enable_symvers=GLIBCPP_ENABLE_SYMVERS_DEFAULT)dnl
2139 # If we never went through the GLIBCPP_CHECK_LINKER_FEATURES macro, then we
2140 # don't know enough about $LD to do tricks...
2141 if test x$enable_shared = xno ||
2143 test x$glibcpp_gnu_ld_version = x; then
2147 # Check to see if libgcc_s exists, indicating that shared libgcc is possible.
2148 if test $enable_symvers != no; then
2149 AC_MSG_CHECKING([for shared libgcc])
2150 ac_save_CFLAGS="$CFLAGS"
2152 AC_TRY_LINK(, [return 0], glibcpp_shared_libgcc=yes, glibcpp_shared_libgcc=no)
2153 CFLAGS="$ac_save_CFLAGS"
2154 AC_MSG_RESULT($glibcpp_shared_libgcc)
2157 # For GNU ld, we need at least this version. It's 2.12 in the same format
2158 # as the tested-for version. See GLIBCPP_CHECK_LINKER_FEATURES for more.
2159 glibcpp_min_gnu_ld_version=21200
2161 # Check to see if unspecified "yes" value can win, given results
2163 if test $enable_symvers = yes ; then
2164 if test $with_gnu_ld = yes &&
2165 test $glibcpp_shared_libgcc = yes ;
2167 if test $glibcpp_gnu_ld_version -ge $glibcpp_min_gnu_ld_version ; then
2170 ac_test_CFLAGS="${CFLAGS+set}"
2171 ac_save_CFLAGS="$CFLAGS"
2172 CFLAGS='-shared -Wl,--version-script,conftest.map'
2175 echo 'FOO { global: f[a-z]o; local: *; };' > conftest.map
2177 AC_TRY_LINK([int foo;],, enable_symvers=gnu)
2178 if test "$ac_test_CFLAGS" = set; then
2179 CFLAGS="$ac_save_CFLAGS"
2181 # this is the suspicious part
2192 dnl Everything parsed; figure out what file to use.
2193 case $enable_symvers in
2195 LINKER_MAP=config/linker-map.dummy
2198 LINKER_MAP=config/linker-map.gnu
2202 AC_LINK_FILES($LINKER_MAP, src/linker.map)
2203 AM_CONDITIONAL(GLIBCPP_BUILD_VERSIONED_SHLIB, test $enable_symvers != no)
2204 AC_MSG_CHECKING([versioning on shared library symbols])
2205 AC_MSG_RESULT($enable_symvers)
2209 # isc-posix.m4 serial 1 (gettext-0.10.40)
2210 dnl Copyright (C) 1995-2002 Free Software Foundation, Inc.
2211 dnl This file is free software, distributed under the terms of the GNU
2212 dnl General Public License. As a special exception to the GNU General
2213 dnl Public License, this file may be distributed as part of a program
2214 dnl that contains a configuration script generated by Autoconf, under
2215 dnl the same distribution terms as the rest of that program.
2217 # This test replaces the one in autoconf.
2218 # Currently this macro should have the same name as the autoconf macro
2219 # because gettext's gettext.m4 (distributed in the automake package)
2220 # still uses it. Otherwise, the use in gettext.m4 makes autoheader
2221 # give these diagnostics:
2222 # configure.in:556: AC_TRY_COMPILE was called before AC_ISC_POSIX
2223 # configure.in:556: AC_TRY_RUN was called before AC_ISC_POSIX
2225 undefine([AC_ISC_POSIX])
2227 AC_DEFUN([AC_ISC_POSIX],
2229 dnl This test replaces the obsolescent AC_ISC_POSIX kludge.
2230 AC_CHECK_LIB(cposix, strerror, [LIBS="$LIBS -lcposix"])
2234 # Add --enable-maintainer-mode option to configure.
2239 AC_DEFUN([AM_MAINTAINER_MODE],
2240 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2241 dnl maintainer-mode is disabled by default
2242 AC_ARG_ENABLE(maintainer-mode,
2243 [ --enable-maintainer-mode enable make rules and dependencies not useful
2244 (and sometimes confusing) to the casual installer],
2245 USE_MAINTAINER_MODE=$enableval,
2246 USE_MAINTAINER_MODE=no)
2247 AC_MSG_RESULT($USE_MAINTAINER_MODE)
2248 AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
2249 MAINT=$MAINTAINER_MODE_TRUE
2254 # Define a conditional.
2256 AC_DEFUN([AM_CONDITIONAL],
2267 # Do all the work for Automake. This macro actually does too much --
2268 # some checks are only needed if your package does certain things.
2269 # But this isn't really a big deal.
2274 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
2276 AC_DEFUN([AM_INIT_AUTOMAKE],
2277 [AC_REQUIRE([AC_PROG_INSTALL])
2282 dnl test to see if srcdir already configured
2283 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
2284 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
2287 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
2288 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
2289 AC_REQUIRE([AM_SANITY_CHECK])
2290 AC_REQUIRE([AC_ARG_PROGRAM])
2291 dnl FIXME This is truly gross.
2292 missing_dir=`cd $ac_aux_dir && pwd`
2293 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
2294 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
2295 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
2296 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
2297 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
2298 AC_REQUIRE([AC_PROG_MAKE_SET])])
2301 # Check to make sure that the build environment is sane.
2304 AC_DEFUN([AM_SANITY_CHECK],
2305 [AC_MSG_CHECKING([whether build environment is sane])
2308 echo timestamp > conftestfile
2309 # Do `set' in a subshell so we don't clobber the current shell's
2310 # arguments. Must try -L first in case configure is actually a
2311 # symlink; some systems play weird games with the mod time of symlinks
2312 # (eg FreeBSD returns the mod time of the symlink's containing
2315 set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
2316 if test "[$]*" = "X"; then
2318 set X `ls -t $srcdir/configure conftestfile`
2320 if test "[$]*" != "X $srcdir/configure conftestfile" \
2321 && test "[$]*" != "X conftestfile $srcdir/configure"; then
2323 # If neither matched, then we have a broken ls. This can happen
2324 # if, for instance, CONFIG_SHELL is bash and it inherits a
2325 # broken ls alias from the environment. This has actually
2326 # happened. Such a system could not be considered "sane".
2327 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
2328 alias in your environment])
2331 test "[$]2" = conftestfile
2337 AC_MSG_ERROR([newly created file is older than distributed files!
2338 Check your system clock])
2341 AC_MSG_RESULT(yes)])
2343 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
2344 dnl The program must properly implement --version.
2345 AC_DEFUN([AM_MISSING_PROG],
2346 [AC_MSG_CHECKING(for working $2)
2347 # Run test in a subshell; some versions of sh will print an error if
2348 # an executable is not found, even if stderr is redirected.
2349 # Redirect stdin to placate older versions of autoconf. Sigh.
2350 if ($2 --version) < /dev/null > /dev/null 2>&1; then
2352 AC_MSG_RESULT(found)
2355 AC_MSG_RESULT(missing)
2359 # Like AC_CONFIG_HEADER, but automatically create stamp file.
2361 AC_DEFUN([AM_CONFIG_HEADER],
2363 AC_CONFIG_HEADER([$1])
2364 dnl When config.status generates a header, we must update the stamp-h file.
2365 dnl This file resides in the same directory as the config header
2366 dnl that is generated. We must strip everything past the first ":",
2367 dnl and everything past the last "/".
2368 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
2369 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
2370 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
2372 for am_file in <<$1>>; do
2373 case " <<$>>CONFIG_HEADERS " in
2374 *" <<$>>am_file "*<<)>>
2375 echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
2378 am_indx=`expr "<<$>>am_indx" + 1`