1 dnl aclocal.m4 generated automatically by aclocal 1.4
3 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
8 dnl This program is distributed in the hope that it will be useful,
9 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
10 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
11 dnl PARTICULAR PURPOSE.
14 dnl Initialize configure bits.
17 AC_DEFUN(GLIBCPP_CONFIGURE, [
18 dnl Default to --enable-multilib
19 AC_ARG_ENABLE(multilib,
20 [ --enable-multilib build hella library versions (default)],
21 [case "${enableval}" in
24 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
25 esac], [multilib=yes])dnl
27 # When building with srcdir == objdir, links to the source files will
28 # be created in directories within the target_subdir. We have to
29 # adjust toplevel_srcdir accordingly, so that configure finds
30 # install-sh and other auxiliary files that live in the top-level
32 if test "${srcdir}" = "."; then
33 if test -z "${with_target_subdir}"; then
36 if test "${with_target_subdir}" != "."; then
37 toprel="${with_multisrctop}../.."
39 toprel="${with_multisrctop}.."
45 AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
46 toplevel_srcdir=\${top_srcdir}/$toprel
47 AC_SUBST(toplevel_srcdir)
49 # Export build and source directories.
50 # These need to be absolute paths, yet at the same time need to
51 # canonicalize only relative paths, because then amd will not unmount
52 # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
53 glibcpp_builddir=`pwd`
55 [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
56 *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
58 AC_SUBST(glibcpp_builddir)
59 AC_SUBST(glibcpp_srcdir)
61 dnl This is here just to satisfy automake.
62 ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
64 # Will set LN_S to either 'ln -s' or 'ln'. With autoconf 2.50+, can also
65 # be 'cp -p' if linking isn't available.
66 #ac_cv_prog_LN_S='cp -p'
69 # We use these options to decide which functions to include.
70 AC_ARG_WITH(target-subdir,
71 [ --with-target-subdir=SUBDIR
72 configuring in a subdirectory])
73 AC_ARG_WITH(cross-host,
74 [ --with-cross-host=HOST configuring with a cross compiler])
76 glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3
77 AC_SUBST(glibcpp_basedir)
79 # Never versions of autoconf add an underscore to these functions.
80 # Prevent future problems ...
81 ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
82 ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
83 ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
84 ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
88 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
89 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
90 # are probably using a cross compiler, which will not be able to fully
91 # link an executable. This should really be fixed in autoconf
94 AC_DEFUN(LIB_AC_PROG_CC,
95 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
96 dnl Fool anybody using AC_PROG_CC.
97 AC_PROVIDE([AC_PROG_CC])
98 AC_CHECK_PROG(CC, gcc, gcc)
99 if test -z "$CC"; then
100 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
101 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
106 if test $ac_cv_prog_gcc = yes; then
108 dnl Check whether -g works, even if CFLAGS is set, in case the package
109 dnl plays around with CFLAGS (such as to build both debugging and
110 dnl normal versions of a library), tasteless as that idea is.
111 ac_test_CFLAGS="${CFLAGS+set}"
112 ac_save_CFLAGS="$CFLAGS"
115 if test "$ac_test_CFLAGS" = set; then
116 CFLAGS="$ac_save_CFLAGS"
117 elif test $ac_cv_prog_cc_g = yes; then
124 test "${CFLAGS+set}" = set || CFLAGS="-g"
130 # Can't just call these here as g++ requires libstc++ to be built....
133 # Likewise for AC_PROG_CXX.
134 AC_DEFUN(LIB_AC_PROG_CXX,
135 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
136 dnl Fool anybody using AC_PROG_CXX.
137 AC_PROVIDE([AC_PROG_CXX])
138 # Use glibcpp_CXX so that we do not cause CXX to be cached with the
139 # flags that come in CXX while configuring libstdc++. They're different
140 # from those used for all other target libraries. If CXX is set in
141 # the environment, respect that here.
143 AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
144 AC_SUBST(glibcpp_CXX)
146 test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
150 if test $ac_cv_prog_gxx = yes; then
152 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
153 dnl plays around with CXXFLAGS (such as to build both debugging and
154 dnl normal versions of a library), tasteless as that idea is.
155 ac_test_CXXFLAGS="${CXXFLAGS+set}"
156 ac_save_CXXFLAGS="$CXXFLAGS"
159 if test "$ac_test_CXXFLAGS" = set; then
160 CXXFLAGS="$ac_save_CXXFLAGS"
161 elif test $ac_cv_prog_cxx_g = yes; then
168 test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
174 # For some reason, gettext needs this.
177 AC_CHECK_TOOL(AS, as)
178 AC_CHECK_TOOL(AR, ar)
179 AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
184 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
185 # at least currently, we never actually build a program, so we never
186 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
187 # fails, because we are probably configuring with a cross compiler
188 # which cant create executables. So we include AC_EXEEXT to keep
189 # automake happy, but we dont execute it, since we dont care about
192 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
193 # to nothing, so nothing would remain between `then' and `fi' if it
194 # were not for the `:' below.
199 . [$]{glibcpp_basedir}/configure.host
201 case [$]{glibcpp_basedir} in
202 /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
203 *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
206 # This does for the target what configure.host does for the host. In
207 # addition to possibly modifying the same flags, it also sets up symlinks.
215 dnl Check to see if g++ can compile this library, and if so, if any version-
216 dnl specific precautions need to be taken.
218 dnl GLIBCPP_CHECK_COMPILER_VERSION
219 AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
220 if test ! -f stamp-sanity-compiler; then
221 AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
228 ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above]))
230 AC_MSG_RESULT($gpp_satisfactory)
231 touch stamp-sanity-compiler
237 dnl Tests for newer compiler features, or features that are present in newer
238 dnl compiler versions but not older compiler versions still in use, should
241 dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
242 dnl new inlining code or the new system_header pragma will die on -Werror.
243 dnl Leave it out by default and use maint-mode to use it.
245 dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if
246 dnl compiler supports it and the user has not requested debug mode.
248 dnl GLIBCPP_CHECK_COMPILER_FEATURES
249 AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
250 # All these tests are for C++; save the language and the compiler flags.
251 # The CXXFLAGS thing is suspicious, but based on similar bits previously
252 # found in GLIBCPP_CONFIGURE.
255 ac_test_CXXFLAGS="${CXXFLAGS+set}"
256 ac_save_CXXFLAGS="$CXXFLAGS"
258 # Check for maintainer-mode bits.
259 if test x"$USE_MAINTAINER_MODE" = xno; then
265 # Check for -ffunction-sections -fdata-sections
266 AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
267 CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
268 AC_TRY_COMPILE(, [int foo;
269 ], [ac_fdsections=yes], [ac_fdsections=no])
270 if test "$ac_test_CXXFLAGS" = set; then
271 CXXFLAGS="$ac_save_CXXFLAGS"
273 # this is the suspicious part
276 if test x"$ac_fdsections" = x"yes" &&
277 test x"$enable_debug" = x"no"; then
278 SECTION_FLAGS='-ffunction-sections -fdata-sections'
280 AC_MSG_RESULT($ac_fdsections)
284 AC_SUBST(SECTION_FLAGS)
289 dnl If GNU ld is in use, check to see if tricky linker opts can be used. If
290 dnl the native linker is in use, all variables will be defined to something
291 dnl safe (like an empty string).
293 dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
294 dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
296 dnl GLIBCPP_CHECK_LINKER_FEATURES
297 AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
298 # If we're not using GNU ld, then there's no point in even trying these
299 # tests. Check for that first. We should have already tested for gld
300 # by now (in libtool), but require it now just to be safe...
303 AC_REQUIRE([AC_PROG_LD])
306 if test "$ac_cv_prog_gnu_ld" = "notbroken"; then
307 # GNU ld it is! Joy and bunny rabbits!
309 # All these tests are for C++; save the language and the compiler flags.
310 # Need to do this so that g++ won't try to link in libstdc++
311 ac_test_CFLAGS="${CFLAGS+set}"
312 ac_save_CFLAGS="$CFLAGS"
313 CFLAGS='-x c++ -Wl,--gc-sections'
315 # Check for -Wl,--gc-sections
316 # XXX This test is broken at the moment, as symbols required for
317 # linking are now in libsupc++ (not built yet.....). In addition,
318 # this test has cored on solaris in the past. In addition,
319 # --gc-sections doesn't really work at the moment (keeps on discarding
320 # used sections, first .eh_frame and now some of the glibc sections for
321 # iconv). Bzzzzt. Thanks for playing, maybe next time.
322 AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
330 ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes])
331 if test "$ac_test_CFLAGS" = set; then
332 CFLAGS="$ac_save_CFLAGS"
334 # this is the suspicious part
337 if test "$ac_sectionLDflags" = "yes"; then
338 SECTION_LDFLAGS='-Wl,--gc-sections'
340 AC_MSG_RESULT($ac_sectionLDflags)
343 # Set linker optimization flags.
344 if test x"$ac_cv_prog_gnu_ld" = x"yes" &&
345 test x"$enable_debug" = x"no"; then
346 OPT_LDFLAGS='-Wl,-O1'
349 AC_SUBST(SECTION_LDFLAGS)
350 AC_SUBST(OPT_LDFLAGS)
355 dnl Check to see if the (math function) argument passed is
356 dnl declared when using the c++ compiler
357 dnl ASSUMES argument is a math function with ONE parameter
359 dnl GLIBCPP_CHECK_MATH_DECL_1
360 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [
361 AC_MSG_CHECKING([for $1 declaration])
362 if test x${glibcpp_cv_func_$1_use+set} != xset; then
363 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
366 AC_TRY_COMPILE([#include <math.h>
372 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
376 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
380 dnl Check to see if the (math function) argument passed is
381 dnl 1) declared when using the c++ compiler
382 dnl 2) has "C" linkage
383 dnl 3) if not, see if 1) and 2) for argument prepended with '_'
385 dnl Define HAVE_CARGF etc if "cargf" is declared and links
387 dnl argument 1 is name of function to check
389 dnl ASSUMES argument is a math function with ONE parameter
391 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
392 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
393 GLIBCPP_CHECK_MATH_DECL_1($1)
394 if test x$glibcpp_cv_func_$1_use = x"yes"; then
397 GLIBCPP_CHECK_MATH_DECL_1(_$1)
398 if test x$glibcpp_cv_func__$1_use = x"yes"; then
406 dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of
407 dnl of functions at once. It's an all-or-nothing check -- either
408 dnl HAVE_XYZ is defined for each of the functions, or for none of them.
409 dnl Doing it this way saves significant configure time.
410 AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [
411 AC_MSG_CHECKING([for $1 functions])
412 AC_CACHE_VAL(glibcpp_cv_func_$2_use, [
415 AC_TRY_COMPILE([#include <math.h>],
416 [ `for x in $3; do echo "$x (0);"; done` ],
417 [glibcpp_cv_func_$2_use=yes],
418 [glibcpp_cv_func_$2_use=no])
420 AC_MSG_RESULT($glibcpp_cv_func_$2_use)
421 if test x$glibcpp_cv_func_$2_use = x"yes"; then
427 dnl Check to see if the (math function) argument passed is
428 dnl declared when using the c++ compiler
429 dnl ASSUMES argument is a math function with TWO parameters
431 dnl GLIBCPP_CHECK_MATH_DECL_2
432 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [
433 AC_MSG_CHECKING([for $1 declaration])
434 if test x${glibcpp_cv_func_$1_use+set} != xset; then
435 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
438 AC_TRY_COMPILE([#include <math.h>],
440 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
444 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
448 dnl Check to see if the (math function) argument passed is
449 dnl 1) declared when using the c++ compiler
450 dnl 2) has "C" linkage
452 dnl Define HAVE_CARGF etc if "cargf" is declared and links
454 dnl argument 1 is name of function to check
456 dnl ASSUMES argument is a math function with TWO parameters
458 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
459 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
460 GLIBCPP_CHECK_MATH_DECL_2($1)
461 if test x$glibcpp_cv_func_$1_use = x"yes"; then
464 GLIBCPP_CHECK_MATH_DECL_2(_$1)
465 if test x$glibcpp_cv_func__$1_use = x"yes"; then
473 dnl Check to see if the (math function) argument passed is
474 dnl declared when using the c++ compiler
475 dnl ASSUMES argument is a math function with THREE parameters
477 dnl GLIBCPP_CHECK_MATH_DECL_3
478 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [
479 AC_MSG_CHECKING([for $1 declaration])
480 if test x${glibcpp_cv_func_$1_use+set} != xset; then
481 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
484 AC_TRY_COMPILE([#include <math.h>],
486 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
490 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
494 dnl Check to see if the (math function) argument passed is
495 dnl 1) declared when using the c++ compiler
496 dnl 2) has "C" linkage
498 dnl Define HAVE_CARGF etc if "cargf" is declared and links
500 dnl argument 1 is name of function to check
502 dnl ASSUMES argument is a math function with THREE parameters
504 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
505 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
506 GLIBCPP_CHECK_MATH_DECL_3($1)
507 if test x$glibcpp_cv_func_$1_use = x"yes"; then
510 GLIBCPP_CHECK_MATH_DECL_3(_$1)
511 if test x$glibcpp_cv_func__$1_use = x"yes"; then
519 dnl Check to see if the (stdlib function) argument passed is
520 dnl 1) declared when using the c++ compiler
521 dnl 2) has "C" linkage
523 dnl argument 1 is name of function to check
525 dnl ASSUMES argument is a math function with TWO parameters
527 dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2
528 AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
529 AC_MSG_CHECKING([for $1 declaration])
530 if test x${glibcpp_cv_func_$1_use+set} != xset; then
531 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
534 AC_TRY_COMPILE([#include <stdlib.h>],
536 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
540 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
541 if test x$glibcpp_cv_func_$1_use = x"yes"; then
548 dnl Because the builtins are picky picky picky about the arguments they take,
549 dnl do an explict linkage tests here.
550 dnl Check to see if the (math function) argument passed is
551 dnl 1) declared when using the c++ compiler
552 dnl 2) has "C" linkage
554 dnl Define HAVE_CARGF etc if "cargf" is declared and links
556 dnl argument 1 is name of function to check
558 dnl ASSUMES argument is a math function with ONE parameter
560 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
561 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
562 AC_MSG_CHECKING([for $1 declaration])
563 if test x${glibcpp_cv_func_$1_use+set} != xset; then
564 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
567 AC_TRY_COMPILE([#include <math.h>],
569 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
573 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
574 if test x$glibcpp_cv_func_$1_use = x"yes"; then
575 AC_MSG_CHECKING([for $1 linkage])
576 if test x${glibcpp_cv_func_$1_link+set} != xset; then
577 AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
578 AC_TRY_LINK([#include <math.h>],
580 [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
583 AC_MSG_RESULT($glibcpp_cv_func_$1_link)
584 if test x$glibcpp_cv_func_$1_link = x"yes"; then
585 ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
586 AC_DEFINE_UNQUOTED(${ac_tr_func})
593 dnl Check to see what builtin math functions are supported
595 dnl check for __builtin_abs
596 dnl check for __builtin_fabsf
597 dnl check for __builtin_fabs
598 dnl check for __builtin_fabl
599 dnl check for __builtin_labs
600 dnl check for __builtin_sqrtf
601 dnl check for __builtin_sqrtl
602 dnl check for __builtin_fsqrt
603 dnl check for __builtin_sinf
604 dnl check for __builtin_sin
605 dnl check for __builtin_sinl
606 dnl check for __builtin_cosf
607 dnl check for __builtin_cos
608 dnl check for __builtin_cosl
610 dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
611 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
612 dnl Test for builtin math functions.
613 dnl These are made in gcc/c-common.c
614 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
615 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
616 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
617 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
618 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
620 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
621 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt)
622 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
624 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
625 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
626 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
628 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
629 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
630 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
632 dnl There is, without a doubt, a more elegant way to have these
633 dnl names exported so that they won't be stripped out of acconfig.h by
634 dnl autoheader. I leave this as an exercise to somebody less frustrated
635 dnl than I.... please email the libstdc++ list if you can figure out a
636 dnl more elegant approach (see autoconf/acgen.m4 and specifically
637 dnl AC_CHECK_FUNC for things to steal.)
639 if test x$dummyvar = x"yes"; then
640 AC_DEFINE(HAVE___BUILTIN_ABS)
641 AC_DEFINE(HAVE___BUILTIN_LABS)
642 AC_DEFINE(HAVE___BUILTIN_COS)
643 AC_DEFINE(HAVE___BUILTIN_COSF)
644 AC_DEFINE(HAVE___BUILTIN_COSL)
645 AC_DEFINE(HAVE___BUILTIN_FABS)
646 AC_DEFINE(HAVE___BUILTIN_FABSF)
647 AC_DEFINE(HAVE___BUILTIN_FABSL)
648 AC_DEFINE(HAVE___BUILTIN_SIN)
649 AC_DEFINE(HAVE___BUILTIN_SINF)
650 AC_DEFINE(HAVE___BUILTIN_SINL)
651 AC_DEFINE(HAVE___BUILTIN_FSQRT)
652 AC_DEFINE(HAVE___BUILTIN_SQRTF)
653 AC_DEFINE(HAVE___BUILTIN_SQRTL)
659 dnl Check to see what the underlying c library
660 dnl These checks need to do two things:
661 dnl 1) make sure the name is declared when using the c++ compiler
662 dnl 2) make sure the name has "C" linkage
663 dnl This might seem like overkill but experience has shown that it's not...
665 dnl Define HAVE_STRTOLD if "strtold" is declared and links
666 dnl Define HAVE_STRTOF if "strtof" is declared and links
667 dnl Define HAVE_DRAND48 if "drand48" is declared and links
669 dnl GLIBCPP_CHECK_STDLIB_SUPPORT
670 AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
671 ac_test_CXXFLAGS="${CXXFLAGS+set}"
672 ac_save_CXXFLAGS="$CXXFLAGS"
673 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
675 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
676 AC_CHECK_FUNCS(drand48)
678 CXXFLAGS="$ac_save_CXXFLAGS"
683 dnl Check to see what the underlying c library or math library is like.
684 dnl These checks need to do two things:
685 dnl 1) make sure the name is declared when using the c++ compiler
686 dnl 2) make sure the name has "C" linkage
687 dnl This might seem like overkill but experience has shown that it's not...
689 dnl Define HAVE_CARGF etc if "cargf" is found.
691 dnl GLIBCPP_CHECK_MATH_SUPPORT
692 AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
693 ac_test_CXXFLAGS="${CXXFLAGS+set}"
694 ac_save_CXXFLAGS="$CXXFLAGS"
695 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
698 AC_CHECK_LIB(m, sin, libm="-lm")
702 dnl Check to see if certain C math functions exist.
703 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
704 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
705 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
706 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
707 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
708 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
709 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
710 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
712 dnl Check to see if basic C math functions have float versions.
713 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
718 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
721 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
722 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
723 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
724 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
725 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
726 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
727 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
728 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
729 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
730 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
731 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
732 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
733 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
734 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
735 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
737 dnl Check to see if basic C math functions have long double versions.
738 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
743 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
746 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
747 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
748 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
749 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
750 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
751 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
752 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
753 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
754 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
755 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
756 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
757 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
758 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
759 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
760 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
761 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
762 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
764 dnl Some runtimes have these functions with a preceding underscore. Please
765 dnl keep this sync'd with the one above. And if you add any new symbol,
766 dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
767 dnl Check to see if certain C math functions exist.
769 dnl Check to see if basic C math functions have float versions.
770 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
772 _acosf _asinf _atanf \
774 _coshf _sinhf _tanhf)
775 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
779 dnl Check to see if basic C math functions have long double versions.
780 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
782 _acosl _asinl _atanl \
784 _coshl _sinhl _tanhl)
785 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
790 CXXFLAGS="$ac_save_CXXFLAGS"
795 dnl Check to see if there is native support for complex
797 dnl Don't compile bits in math/* if native support exits.
799 dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
801 dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
802 AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
803 dnl Check for complex versions of math functions of platform.
804 AC_CHECK_LIB(m, main)
805 AC_REPLACE_MATHFUNCS(nan copysignf)
807 dnl Compile the long double complex functions only if the function
808 dnl provides the non-complex long double functions that are needed.
809 dnl Currently this includes copysignl, which should be
810 dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
811 USE_COMPLEX_LONG_DOUBLE=no
812 if test x$ac_cv_func_copysignl = x"yes"; then
813 USE_COMPLEX_LONG_DOUBLE=yes
814 AC_REPLACE_MATHFUNCS(signbitl)
817 AC_SUBST(USE_COMPLEX_LONG_DOUBLE)
821 dnl Check to see what architecture and operating system we are compiling
822 dnl for. Also, if architecture- or OS-specific flags are required for
823 dnl compilation, pick them up here.
825 dnl GLIBCPP_CHECK_TARGET
826 AC_DEFUN(GLIBCPP_CHECK_TARGET, [
827 . [$]{glibcpp_basedir}/configure.target
828 AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
829 AC_MSG_RESULT(OS config directory is $os_include_dir)
834 dnl Check to see if this target can enable the wchar_t parts of libstdc++.
835 dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
836 dnl must have been previously checked.)
838 dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
839 dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
841 dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
842 AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
844 dnl Test wchar.h for mbstate_t, which is needed for char_traits and
845 dnl others even if wchar_t support is not on.
846 AC_MSG_CHECKING([for mbstate_t])
847 AC_TRY_COMPILE([#include <wchar.h>],
848 [mbstate_t teststate;],
849 have_mbstate_t=yes, have_mbstate_t=no)
850 AC_MSG_RESULT($have_mbstate_t)
851 if test x"$have_mbstate_t" = xyes; then
852 AC_DEFINE(HAVE_MBSTATE_T)
855 dnl Sanity check for existence of ISO C99 headers for extended encoding.
856 AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
857 AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
859 dnl Only continue checking if the ISO C99 headers exist and support is on.
860 if test x"$ac_has_wchar_h" = xyes &&
861 test x"$ac_has_wctype_h" = xyes &&
862 test x"$enable_c_mbchar" != xno; then
864 dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
865 dnl numeric_limits can instantiate type_traits<wchar_t>
866 AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
867 AC_TRY_COMPILE([#include <wchar.h>],
868 [int i = WCHAR_MIN; int j = WCHAR_MAX;],
869 has_wchar_minmax=yes, has_wchar_minmax=no)
870 AC_MSG_RESULT($has_wchar_minmax)
872 dnl Test wchar.h for WEOF, which is what we use to determine whether
873 dnl to specialize for char_traits<wchar_t> or not.
874 AC_MSG_CHECKING([for WEOF])
877 #include <stddef.h>],
879 has_weof=yes, has_weof=no)
880 AC_MSG_RESULT($has_weof)
882 dnl Tests for wide character functions used in char_traits<wchar_t>.
884 AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \
887 dnl Checks for names injected into std:: by the c_std headers.
888 AC_CHECK_FUNCS(btowc wctob fgetwc fgetwc fgetws fputwc fputws fwide \
889 fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
890 vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
891 mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
892 wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
893 wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \
896 AC_MSG_CHECKING([for ISO C99 wchar_t support])
897 if test x"$has_weof" = xyes &&
898 test x"$has_wchar_minmax" = xyes &&
899 test x"$ac_wfuncs" = xyes; then
900 ac_isoC99_wchar_t=yes
904 AC_MSG_RESULT($ac_isoC99_wchar_t)
906 dnl Use iconv for wchar_t to char conversions. As such, check for
907 dnl X/Open Portability Guide, version 2 features (XPG2).
908 AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
909 AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
911 dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
912 AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
914 LIBS="$LIBS $libiconv"
916 AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
917 ac_XPG2funcs=yes, ac_XPG2funcs=no)
921 AC_MSG_CHECKING([for XPG2 wchar_t support])
922 if test x"$ac_has_iconv_h" = xyes &&
923 test x"$ac_has_langinfo_h" = xyes &&
924 test x"$ac_XPG2funcs" = xyes; then
929 AC_MSG_RESULT($ac_XPG2_wchar_t)
931 dnl At the moment, only enable wchar_t specializations if all the
932 dnl above support is present.
933 AC_MSG_CHECKING([for enabled wchar_t specializations])
934 if test x"$ac_isoC99_wchar_t" = xyes &&
935 test x"$ac_XPG2_wchar_t" = xyes; then
936 AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
942 dnl Wide characters disabled by the user.
943 AC_MSG_WARN([wchar_t support disabled.])
949 dnl Check for special debugging mode; not for production use.
951 dnl GLIBCPP_ENABLE_DEBUG
952 dnl --enable-debug sets '-ggdb3 -O0'.
953 dnl --disable-debug sets '-g' and whatever optimization options the
954 dnl compiler can handle.
955 dnl + --enable-maintainer-mode automatically defaults this to on.
956 dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...?
957 dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
958 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
959 dnl defaults to `no'.
960 AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
961 define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
963 changequote(<<, >>)dnl
964 << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
966 [case "${enableval}" in
967 yes) enable_debug=yes ;;
968 no) enable_debug=no ;;
969 *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
971 enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
973 dnl Option parsed, now set things appropriately
974 case "${enable_debug}" in
976 DEBUG_FLAGS='-O0 -ggdb3'
982 AC_SUBST(DEBUG_FLAGS)
987 dnl Check for "unusual" flags to pass to the compiler while building.
989 dnl GLIBCPP_ENABLE_CXX_FLAGS
990 dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
991 dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
992 dnl Somehow this same set of flags must be passed when [re]building
994 dnl --disable-cxx-flags passes nothing.
995 dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
996 dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
997 dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
998 dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags)
999 dnl If "default flags" is an empty string (or "none"), the effect is
1000 dnl the same as --disable or --enable=no.
1001 AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
1002 define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1003 AC_ARG_ENABLE(cxx-flags,
1004 changequote(<<, >>)dnl
1005 << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
1006 [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
1007 changequote([, ])dnl
1008 [case "x$enableval" in
1010 AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
1012 enable_cxx_flags='' ;;
1014 enable_cxx_flags="$enableval" ;;
1016 enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT')
1018 dnl Thinko on my part during design. This kludge is the workaround.
1019 if test "$enable_cxx_flags" = "none"; then
1020 enable_cxx_flags='';
1023 dnl Run through flags (either default or command-line) and set anything
1024 dnl extra (e.g., #defines) that must accompany particular g++ options.
1025 if test -n "$enable_cxx_flags"; then
1026 for f in $enable_cxx_flags; do
1030 *) # and we're trying to pass /what/ exactly?
1031 AC_MSG_ERROR([compiler flags start with a -]) ;;
1035 EXTRA_CXX_FLAGS="$enable_cxx_flags"
1036 AC_SUBST(EXTRA_CXX_FLAGS)
1041 dnl Check for which locale library to use: gnu or generic.
1043 dnl GLIBCPP_ENABLE_CLOCALE
1044 dnl --enable-clocale=gnu sets config/locale/c_locale_gnu.cc and friends
1045 dnl --enable-clocale=generic sets config/locale/c_locale_generic.cc and friends
1047 dnl default is generic
1049 AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
1050 AC_MSG_CHECKING([for clocale to use])
1051 AC_ARG_ENABLE(clocale,
1052 [ --enable-clocale enable model for target locale package.
1053 --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic]
1055 if test x$enable_clocale = xno; then
1056 enable_clocale=generic
1058 enable_clocale=generic)
1060 enable_clocale_flag=$enable_clocale
1062 dnl Check if a valid locale package
1063 case x${enable_clocale_flag} in
1065 AC_MSG_RESULT(generic)
1067 # Don't use gettext.
1070 CLOCALE_H=config/locale/c_locale_generic.h
1071 CLOCALE_CC=config/locale/c_locale_generic.cc
1072 CCODECVT_H=config/locale/codecvt_specializations_generic.h
1073 CCOLLATE_CC=config/locale/collate_members_generic.cc
1074 CMESSAGES_H=config/locale/messages_members_generic.h
1075 CMESSAGES_CC=config/locale/messages_members_generic.cc
1076 CMONEY_CC=config/locale/moneypunct_members_generic.cc
1077 CNUMERIC_CC=config/locale/numpunct_members_generic.cc
1078 CTIME_CC=config/locale/time_members_generic.cc
1083 # Declare intention to use gettext, and add support for specific
1085 # For some reason, ALL_LINGUAS has to be before AM_GNU_GETTEXT
1087 # Don't call AM_GNU_GETTEXT here. Instead, assume glibc.
1088 # Need to deal with MSGFMT, USE_NLS, and glibcpp_[P,M]OFILES
1091 # Export the build objects.
1092 for ling in $ALL_LINGUAS; do \
1093 glibcpp_MOFILES="$glibcpp_MOFILES $ling.mo"; \
1094 glibcpp_POFILES="$glibcpp_POFILES $ling.po"; \
1096 AC_SUBST(glibcpp_MOFILES)
1097 AC_SUBST(glibcpp_POFILES)
1099 CLOCALE_H=config/locale/c_locale_gnu.h
1100 CLOCALE_CC=config/locale/c_locale_gnu.cc
1101 CCODECVT_H=config/locale/codecvt_specializations_ieee_1003.1-200x.h
1102 CCOLLATE_CC=config/locale/collate_members_gnu.cc
1103 CMESSAGES_H=config/locale/messages_members_gnu.h
1104 CMESSAGES_CC=config/locale/messages_members_gnu.cc
1105 CMONEY_CC=config/locale/moneypunct_members_gnu.cc
1106 CNUMERIC_CC=config/locale/numpunct_members_gnu.cc
1107 CTIME_CC=config/locale/time_members_gnu.cc
1110 AC_MSG_RESULT(generic)
1112 # Don't use gettext.
1115 CLOCALE_H=config/locale/c_locale_ieee_1003.1-200x.h
1116 CLOCALE_CC=config/locale/c_locale_ieee_1003.1-200x.cc
1117 CCODECVT_H=config/locale/codecvt_specializations_ieee_1003.1-200x.h
1118 CCOLLATE_CC=config/locale/collate_members_generic.cc
1119 CMESSAGES_H=config/locale/messages_members_ieee_1003.1-200x.h
1120 CMESSAGES_CC=config/locale/messages_members_ieee_1003.1-200x.cc
1121 CMONEY_CC=config/locale/moneypunct_members_generic.cc
1122 CNUMERIC_CC=config/locale/numpunct_members_generic.cc
1123 CTIME_CC=config/locale/time_members_generic.cc
1126 echo "$enable_clocale is an unknown locale package" 1>&2
1131 # This is where the testsuite looks for locale catalogs, using the
1132 # -DLOCALEDIR define during testsuite compilation.
1133 glibcpp_localedir=${glibcpp_builddir}/po/share/locale
1134 AC_SUBST(glibcpp_localedir)
1138 AC_SUBST(CCODECVT_H)
1139 AC_SUBST(CMESSAGES_H)
1140 AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc)
1141 AC_LINK_FILES($CCOLLATE_CC, src/collate.cc)
1142 AC_LINK_FILES($CMESSAGES_CC, src/messages.cc)
1143 AC_LINK_FILES($CMONEY_CC, src/moneypunct.cc)
1144 AC_LINK_FILES($CNUMERIC_CC, src/numpunct.cc)
1145 AC_LINK_FILES($CTIME_CC, src/time.cc)
1150 dnl Check for which I/O library to use: libio, or something specific.
1152 dnl GLIBCPP_ENABLE_CSTDIO
1153 dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
1155 dnl default is stdio
1157 AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
1158 AC_MSG_CHECKING([for cstdio to use])
1159 AC_ARG_ENABLE(cstdio,
1160 [ --enable-cstdio enable stdio for target io package.
1161 --enable-cstdio=LIB use LIB target-speific io package. [default=stdio]
1163 if test x$enable_cstdio = xno; then
1166 enable_cstdio=stdio)
1168 enable_cstdio_flag=$enable_cstdio
1170 dnl Check if a valid I/O package
1171 case x${enable_cstdio_flag} in
1173 CSTDIO_H=config/io/c_io_libio.h
1174 BASIC_FILE_H=config/io/basic_file_libio.h
1175 BASIC_FILE_CC=config/io/basic_file_libio.cc
1176 AC_MSG_RESULT(libio)
1178 # see if we are on a system with libio native (ie, linux)
1179 AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
1181 # Need to check and see what version of glibc is being used. If
1182 # it's not glibc-2.2 or higher, then we'll need to go ahead and
1183 # compile most of libio for linux systems.
1184 if test x$has_libio = x"yes"; then
1187 AC_MSG_CHECKING([for glibc version >= 2.2])
1188 AC_EGREP_CPP([ok], [
1189 #include <features.h>
1190 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1193 ], glibc_satisfactory=yes, glibc_satisfactory=no)
1194 AC_MSG_RESULT($glibc_satisfactory)
1198 # XXX at the moment, admit defeat and force the recompilation
1199 # XXX of glibc even on glibc-2.2 systems, because libio is not synched.
1200 glibc_satisfactory=no
1202 if test x$glibc_satisfactory = x"yes"; then
1207 # bkoz XXX need to add checks to enable this
1208 # pme XXX here's a first pass at such a check
1209 if test x$enable_c_mbchar != xno; then
1217 # Using libio, but <libio.h> doesn't exist on the target system. . .
1219 # bkoz XXX need to add checks to enable this
1220 # pme XXX here's a first pass at such a check
1221 if test x$enable_c_mbchar != xno; then
1228 xstdio | x | xno | xnone | xyes)
1230 CSTDIO_H=config/io/c_io_stdio.h
1231 BASIC_FILE_H=config/io/basic_file_stdio.h
1232 BASIC_FILE_CC=config/io/basic_file_stdio.cc
1233 AC_MSG_RESULT(stdio)
1235 # We're not using stdio.
1240 echo "$enable_cstdio is an unknown io package" 1>&2
1245 AC_SUBST(BASIC_FILE_H)
1246 AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc)
1248 # 2000-08-04 bkoz hack
1249 CCODECVT_C=config/io/c_io_libio_codecvt.c
1250 AC_SUBST(CCODECVT_C)
1251 # 2000-08-04 bkoz hack
1253 AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
1254 test "$need_libio" = yes || test "$need_wlibio" = yes)
1255 AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
1256 AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
1257 if test "$need_libio" = yes || test "$need_wlibio" = yes; then
1258 libio_la=../libio/libio.la
1267 dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
1268 dnl We must stage the required headers so that they will be installed
1269 dnl with the library (unlike libgcc, the STL implementation is provided
1270 dnl solely within headers). Since we must not inject random user-space
1271 dnl macro names into user-provided C++ code, we first stage into <file>-in
1272 dnl and process to <file> with an output command. The reason for a two-
1273 dnl stage process here is to correctly handle $srcdir!=$objdir without
1274 dnl having to write complex code (the sed commands to clean the macro
1275 dnl namespace are complex and fragile enough as it is). We must also
1276 dnl add a relative path so that -I- is supported properly.
1278 AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
1279 AC_MSG_CHECKING([for thread model used by GCC])
1280 target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
1281 AC_MSG_RESULT([$target_thread_file])
1283 if test $target_thread_file != single; then
1284 AC_DEFINE(HAVE_GTHR_DEFAULT)
1285 AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__)
1288 glibcpp_thread_h=gthr-$target_thread_file.h
1289 AC_SUBST(glibcpp_thread_h)
1294 dnl Check for exception handling support. If an explicit enable/disable
1295 dnl sjlj exceptions is given, we don't have to detect. Otherwise the
1296 dnl target may or may not support call frame exceptions.
1298 dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
1299 dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
1300 dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
1302 dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it.
1304 AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [
1305 AC_MSG_CHECKING([for exception model to use])
1308 AC_ARG_ENABLE(sjlj-exceptions,
1309 [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
1311 [dnl Botheration. Now we've got to detect the exception model.
1312 dnl Link tests against libgcc.a are problematic since -- at least
1313 dnl as of this writing -- we've not been given proper -L bits for
1314 dnl single-tree newlib and libgloss.
1316 dnl This is what AC_TRY_COMPILE would do if it didn't delete the
1317 dnl conftest files before we got a change to grep them first.
1318 cat > conftest.$ac_ext << EOF
1319 [#]line __oline__ "configure"
1328 old_CXXFLAGS="$CXXFLAGS"
1330 if AC_TRY_EVAL(ac_compile); then
1331 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
1332 enable_sjlj_exceptions=yes
1333 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
1334 enable_sjlj_exceptions=no
1337 CXXFLAGS="$old_CXXFLAGS"
1339 if test x$enable_sjlj_exceptions = xyes; then
1340 AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1,
1341 [Define if the compiler is configured for setjmp/longjmp exceptions.])
1342 ac_exception_model_name=sjlj
1343 elif test x$enable_sjlj_exceptions = xno; then
1344 ac_exception_model_name="call frame"
1346 AC_MSG_ERROR([unable to detect exception model])
1349 AC_MSG_RESULT($ac_exception_model_name)
1354 dnl Check for ISO/IEC 9899:1999 "C99" support.
1356 dnl GLIBCPP_ENABLE_C99
1357 dnl --enable-c99 defines _GLIBCPP_USE_C99
1358 dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined
1359 dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)]
1360 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1361 dnl defaults to `no'.
1362 dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
1364 dnl GLIBCPP_ENABLE_C99
1365 AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl
1366 define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl
1369 changequote(<<, >>)dnl
1370 <<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT],
1371 changequote([, ])dnl
1372 [case "$enableval" in
1373 yes) enable_c99=yes ;;
1374 no) enable_c99=no ;;
1375 *) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
1377 enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl
1382 # Check for the existence of <math.h> functions used if C99 is enabled.
1384 AC_MSG_CHECKING([for ISO C99 support in <math.h>])
1385 AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
1386 AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
1387 AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
1388 AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
1389 AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
1390 AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
1391 AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
1392 AC_TRY_COMPILE([#include <math.h>],
1393 [isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
1394 AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
1395 AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
1396 AC_TRY_COMPILE([#include <math.h>],
1397 [islessgreater(0.0,0.0);],, [ac_c99_math=no])
1398 AC_TRY_COMPILE([#include <math.h>],
1399 [isunordered(0.0,0.0);],, [ac_c99_math=no])
1400 AC_MSG_RESULT($ac_c99_math)
1402 # Check for the existence in <stdio.h> of vscanf, et. al.
1404 AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
1405 AC_TRY_COMPILE([#include <stdio.h>],
1406 [snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
1407 AC_TRY_COMPILE([#include <stdio.h>
1409 void foo(char* fmt, ...)
1410 {va_list args; va_start(args, fmt);
1411 vfscanf(stderr, "%i", args);}],
1412 [],, [ac_c99_stdio=no])
1413 AC_TRY_COMPILE([#include <stdio.h>
1415 void foo(char* fmt, ...)
1416 {va_list args; va_start(args, fmt);
1417 vscanf("%i", args);}],
1418 [],, [ac_c99_stdio=no])
1419 AC_TRY_COMPILE([#include <stdio.h>
1421 void foo(char* fmt, ...)
1422 {va_list args; va_start(args, fmt);
1423 vsnprintf(fmt, 0, "%i", args);}],
1424 [],, [ac_c99_stdio=no])
1425 AC_TRY_COMPILE([#include <stdio.h>
1427 void foo(char* fmt, ...)
1428 {va_list args; va_start(args, fmt);
1429 vsscanf(fmt, "%i", args);}],
1430 [],, [ac_c99_stdio=no])
1431 AC_MSG_RESULT($ac_c99_stdio)
1433 # Check for the existence in <stdlib.h> of lldiv_t, et. al.
1435 AC_MSG_CHECKING([for lldiv_t declaration])
1436 AC_CACHE_VAL(ac_c99_lldiv_t, [
1437 AC_TRY_COMPILE([#include <stdlib.h>],
1439 [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
1441 AC_MSG_RESULT($ac_c99_lldiv_t)
1443 AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
1444 AC_TRY_COMPILE([#include <stdlib.h>],
1445 [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
1446 AC_TRY_COMPILE([#include <stdlib.h>],
1447 [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
1448 AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
1449 AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
1450 AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
1451 AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
1452 if test x"$ac_c99_lldiv_t" = x"no"; then
1455 AC_MSG_RESULT($ac_c99_stdlib)
1457 # Check for the existence of <wchar.h> functions used if C99 is enabled.
1458 # XXX the wchar.h checks should be rolled into the general C99 bits.
1460 AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
1461 AC_TRY_COMPILE([#include <wchar.h>],
1462 [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
1463 AC_TRY_COMPILE([#include <wchar.h>],
1464 [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
1465 AC_TRY_COMPILE([#include <wchar.h>],
1466 [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
1467 AC_MSG_RESULT($ac_c99_wchar)
1469 AC_MSG_CHECKING([for enabled ISO C99 support])
1470 if test x"$ac_c99_math" = x"no" ||
1471 test x"$ac_c99_stdio" = x"no" ||
1472 test x"$ac_c99_stdlib" = x"no" ||
1473 test x"$ac_c99_wchar" = x"no"; then
1476 AC_MSG_RESULT($enable_c99)
1478 # Option parsed, now set things appropriately
1479 if test x"$enable_c99" = x"yes"; then
1480 AC_DEFINE(_GLIBCPP_USE_C99)
1488 dnl Check for template specializations for the 'long long' type extension.
1489 dnl The result determines only whether 'long long' I/O is enabled; things
1490 dnl like numeric_limits<> specializations are always available.
1492 dnl GLIBCPP_ENABLE_LONG_LONG
1493 dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
1494 dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
1495 dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
1496 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1497 dnl defaults to `no'.
1498 dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
1500 dnl GLIBCPP_ENABLE_LONG_LONG
1501 AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
1502 define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
1504 AC_ARG_ENABLE(long-long,
1505 changequote(<<, >>)dnl
1506 <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
1507 changequote([, ])dnl
1508 [case "$enableval" in
1509 yes) enable_long_long=yes ;;
1510 no) enable_long_long=no ;;
1511 *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
1513 enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
1515 AC_MSG_CHECKING([for enabled long long I/O support])
1517 # iostreams require strtoll, strtoull to compile
1518 AC_TRY_COMPILE([#include <stdlib.h>],
1519 [char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
1520 AC_TRY_COMPILE([#include <stdlib.h>],
1521 [char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
1523 # Option parsed, now set things appropriately
1524 if test x"$enable_long_long" = xyes; then
1525 AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
1527 AC_MSG_RESULT($enable_long_long)
1532 dnl Check for what kind of C headers to use.
1534 dnl GLIBCPP_ENABLE_CHEADERS
1535 dnl --enable-cheaders= [does stuff].
1536 dnl --disable-cheaders [does not do anything, really].
1537 dnl + This will eventually need to be 'c_shadow' by default.
1538 dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)]
1539 dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'.
1540 dnl If ommitted, it defaults to `c_std'.
1541 AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
1542 define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
1543 AC_MSG_CHECKING([for c header strategy to use])
1544 AC_ARG_ENABLE(cheaders,
1545 changequote(<<, >>)dnl
1546 << --enable-cheaders construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
1548 [case "$enableval" in
1553 enable_cheaders=c_std
1556 enable_cheaders=c_shadow
1558 *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
1561 enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
1562 AC_MSG_RESULT($enable_cheaders)
1564 dnl Option parsed, now set things appropriately
1565 case "$enable_cheaders" in
1567 CSHADOW_FLAGS="-fno-builtin"
1568 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow'
1569 AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS)
1573 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std'
1577 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c'
1581 AC_SUBST(CSHADOW_FLAGS)
1582 AC_SUBST(C_INCLUDE_DIR)
1583 AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow)
1588 dnl Check for wide character support. Has the same effect as the option
1589 dnl in gcc's configure, but in a form that autoconf can mess with.
1591 dnl GLIBCPP_ENABLE_C_MBCHAR
1592 dnl --enable-c-mbchar requests all the wchar_t stuff.
1593 dnl --disable-c-mbchar doesn't.
1594 dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
1595 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1596 dnl defaults to `no'.
1597 AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
1598 define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
1599 AC_ARG_ENABLE(c-mbchar,
1600 changequote(<<, >>)dnl
1601 << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
1602 changequote([, ])dnl
1603 [case "$enableval" in
1604 yes) enable_c_mbchar=yes ;;
1605 no) enable_c_mbchar=no ;;
1606 *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
1608 enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
1609 dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
1614 dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
1616 dnl TOPLEVEL_INCLUDES
1617 dnl LIBMATH_INCLUDES
1618 dnl LIBSUPCXX_INCLUDES
1620 dnl CSHADOW_INCLUDES
1622 dnl GLIBCPP_EXPORT_INCLUDES
1623 AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
1624 # Root level of the build directory include sources.
1625 GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include"
1627 # Passed down for canadian crosses.
1628 if test x"$CANADIAN" = xyes; then
1629 TOPLEVEL_INCLUDES='-I$(includedir)'
1632 LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
1634 LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
1636 if test x"$need_libio" = xyes; then
1637 LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
1638 AC_SUBST(LIBIO_INCLUDES)
1641 # Now, export this to all the little Makefiles....
1642 AC_SUBST(GLIBCPP_INCLUDES)
1643 AC_SUBST(TOPLEVEL_INCLUDES)
1644 AC_SUBST(LIBMATH_INCLUDES)
1645 AC_SUBST(LIBSUPCXX_INCLUDES)
1650 dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
1652 AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
1653 # Optimization flags that are probably a good idea for thrill-seekers. Just
1654 # uncomment the lines below and make, everything else is ready to go...
1655 # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
1657 AC_SUBST(OPTIMIZE_CXXFLAGS)
1659 WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
1660 AC_SUBST(WARN_FLAGS)
1664 dnl GLIBCPP_EXPORT_INSTALL_INFO
1665 dnl calculates gxx_install_dir
1666 dnl exports glibcpp_toolexecdir
1667 dnl exports glibcpp_toolexeclibdir
1668 dnl exports glibcpp_prefixdir
1670 dnl Assumes cross_compiling bits already done, and with_cross_host in
1673 dnl GLIBCPP_EXPORT_INSTALL_INFO
1674 AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
1675 # Assumes glibcpp_builddir, glibcpp_srcdir are alreay set up and
1676 # exported correctly in GLIBCPP_CONFIGURE.
1677 glibcpp_toolexecdir=no
1678 glibcpp_toolexeclibdir=no
1679 glibcpp_prefixdir=${prefix}
1681 AC_MSG_CHECKING([for interface version number])
1682 libstdcxx_interface=$INTERFACE
1683 AC_MSG_RESULT($libstdcxx_interface)
1685 # Process the option --with-gxx-include-dir=<path to include-files directory>
1686 AC_MSG_CHECKING([for --with-gxx-include-dir])
1687 AC_ARG_WITH(gxx-include-dir,
1688 [ --with-gxx-include-dir the installation directory for include files],
1689 [case "${withval}" in
1691 AC_MSG_ERROR(Missing directory for --with-gxx-include-dir)
1698 gxx_include_dir=${withval}
1700 esac], [gxx_include_dir=no])
1701 AC_MSG_RESULT($gxx_include_dir)
1703 # Process the option "--enable-version-specific-runtime-libs"
1704 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
1705 AC_ARG_ENABLE(version-specific-runtime-libs,
1706 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
1707 [case "$enableval" in
1708 yes) version_specific_libs=yes ;;
1709 no) version_specific_libs=no ;;
1710 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
1712 version_specific_libs=no)dnl
1713 # Option set, now we can test it.
1714 AC_MSG_RESULT($version_specific_libs)
1716 if test $version_specific_libs = yes; then
1717 # Need the gcc compiler version to know where to install libraries
1718 # and header files if --enable-version-specific-runtime-libs option
1721 gcc_version_trigger=${srcdir}/../gcc/version.c
1722 gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'`
1723 gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'`
1724 gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++
1725 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1726 glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
1730 # Default case for install directory for include files.
1731 if test $version_specific_libs = no &&
1732 test $gxx_include_dir = no; then
1733 gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface}
1736 # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
1737 # Install a library built with a cross compiler in tooldir, not libdir.
1738 if test x"$glibcpp_toolexecdir" = x"no"; then
1739 if test -n "$with_cross_host" &&
1740 test x"$with_cross_host" != x"no"; then
1741 glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
1742 glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)'
1744 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1745 glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)'
1749 AC_MSG_CHECKING([for install location])
1750 AC_MSG_RESULT($gxx_include_dir)
1752 AC_SUBST(glibcpp_prefixdir)
1753 AC_SUBST(gxx_include_dir)
1754 AC_SUBST(glibcpp_toolexecdir)
1755 AC_SUBST(glibcpp_toolexeclibdir)
1759 # Check for functions in math library.
1760 # Ulrich Drepper <drepper@cygnus.com>, 1998.
1762 # This file can be copied and used freely without restrictions. It can
1763 # be used in projects which are not available under the GNU Public License
1764 # but which still want to provide support for the GNU gettext functionality.
1765 # Please note that the actual code is *not* freely available.
1769 dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
1770 AC_DEFUN(AC_REPLACE_MATHFUNCS,
1771 [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])
1772 AC_SUBST(LIBMATHOBJS)dnl
1777 dnl This macro searches for a GNU version of make. If a match is found, the
1778 dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
1779 dnl set to "#". This is useful for including a special features in a Makefile,
1780 dnl which cannot be handled by other versions of make. The variable
1781 dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
1782 dnl the empty string otherwise.
1784 dnl Here is an example of its use:
1786 dnl Makefile.in might contain:
1788 dnl # A failsafe way of putting a dependency rule into a makefile
1790 dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
1792 dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
1793 dnl @ifGNUmake@ include $(DEPEND)
1794 dnl @ifGNUmake@ endif
1796 dnl Then configure.in would normally contain:
1798 dnl CHECK_GNU_MAKE()
1799 dnl AC_OUTPUT(Makefile)
1801 dnl Then perhaps to cause gnu make to override any other make, we could do
1802 dnl something like this (note that GNU make always looks for GNUmakefile first):
1804 dnl if ! test x$_cv_gnu_make_command = x ; then
1805 dnl mv Makefile GNUmakefile
1806 dnl echo .DEFAULT: > Makefile ;
1807 dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
1810 dnl Then, if any (well almost any) other make is called, and GNU make also
1811 dnl exists, then the other make wraps the GNU make.
1813 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
1814 dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
1816 dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending
1817 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
1818 dnl #### conditional's subshell (" --version" is not a command), using a
1819 dnl #### different option to grep(1).
1821 dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not
1822 dnl #### ${MAKE:-make}).
1825 GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
1826 _cv_gnu_make_command='' ;
1827 dnl Search all the common names for GNU make
1828 for a in "${MAKE-make}" make gmake gnumake ; do
1829 if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
1831 _cv_gnu_make_command=$a ;
1836 dnl If there was a GNU version, then set @ifGNUmake@ to the empty
1837 dnl string, '#' otherwise
1838 if test "x$_cv_gnu_make_command" != "x" ; then
1847 dnl Check for headers for, and arguments to, the setrlimit() function.
1848 dnl Used only in testsuite_hooks.h.
1849 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [
1850 AC_TRY_COMPILE([#include <sys/resource.h>
1852 ], [ int f = RLIMIT_$1 ; ],
1853 [glibcpp_mresult=1], [glibcpp_mresult=0])
1854 AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult,
1855 [Only used in build directory testsuite_hooks.h.])
1857 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [
1858 setrlimit_have_headers=yes
1859 AC_CHECK_HEADERS(sys/resource.h unistd.h,
1861 setrlimit_have_headers=no)
1862 # If don't have the headers, then we can't run the tests now, and we
1863 # won't be seeing any of these during testsuite compilation.
1864 if test $setrlimit_have_headers = yes; then
1865 # Can't do these in a loop, else the resulting syntax is wrong.
1866 GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA)
1867 GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS)
1868 GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM)
1869 GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS)
1871 # Check for rlimit, setrlimit.
1872 AC_CACHE_VAL(ac_setrlimit, [
1873 AC_TRY_COMPILE([#include <sys/resource.h>
1876 [ struct rlimit r; setrlimit(0, &r);],
1877 [ac_setrlimit=yes], [ac_setrlimit=no])
1881 AC_MSG_CHECKING([for testsuite memory limit support])
1882 if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
1884 AC_DEFINE(_GLIBCPP_MEM_LIMITS)
1888 AC_MSG_RESULT($ac_mem_limits)
1893 dnl Does any necessary configuration of the testsuite directory. Generates
1894 dnl the testsuite_hooks.h header.
1896 dnl GLIBCPP_CONFIGURE_TESTSUITE [no args]
1897 AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [
1898 GLIBCPP_CHECK_SETRLIMIT
1902 sinclude(../libtool.m4)
1903 dnl The lines below arrange for aclocal not to bring an installed
1904 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
1905 dnl add a definition of LIBTOOL to Makefile.in.
1906 ifelse(,,,[AC_SUBST(LIBTOOL)
1907 AC_DEFUN([AM_PROG_LIBTOOL])
1908 AC_DEFUN([AC_LIBTOOL_DLOPEN])
1909 AC_DEFUN([AC_PROG_LD])
1913 # Check whether LC_MESSAGES is available in <locale.h>.
1914 # Ulrich Drepper <drepper@cygnus.com>, 1995.
1916 # This file file be copied and used freely without restrictions. It can
1917 # be used in projects which are not available under the GNU Public License
1918 # but which still want to provide support for the GNU gettext functionality.
1919 # Please note that the actual code is *not* freely available.
1923 AC_DEFUN(AC_LC_MESSAGES, [
1924 AC_CHECK_HEADER(locale.h, [
1925 AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
1926 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
1927 ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
1928 if test $ac_cv_val_LC_MESSAGES = yes; then
1929 AC_DEFINE(HAVE_LC_MESSAGES)
1936 dnl Check for whether the Boost-derived checks should be turned on.
1938 dnl GLIBCPP_ENABLE_CONCEPT_CHECKS
1939 dnl --enable-concept-checks turns them on.
1940 dnl --disable-concept-checks leaves them off.
1941 dnl + Usage: GLIBCPP_ENABLE_CONCEPT_CHECKS[(DEFAULT)]
1942 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1943 dnl defaults to `no'.
1944 AC_DEFUN(GLIBCPP_ENABLE_CONCEPT_CHECKS, [dnl
1945 define([GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT], ifelse($1, yes, yes, no))dnl
1946 AC_ARG_ENABLE(concept-checks,
1947 changequote(<<, >>)dnl
1948 << --enable-concept-checks use Boost-derived template checks [default=>>GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT],
1949 changequote([, ])dnl
1950 [case "$enableval" in
1951 yes) enable_concept_checks=yes ;;
1952 no) enable_concept_checks=no ;;
1953 *) AC_MSG_ERROR([Unknown argument to enable/disable concept checks]) ;;
1955 enable_concept_checks=GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT)dnl
1956 dnl Option parsed, now set things appropriately
1957 if test x"$enable_concept_checks" = xyes; then
1958 AC_DEFINE(_GLIBCPP_CONCEPT_CHECKS)
1964 # Add --enable-maintainer-mode option to configure.
1969 AC_DEFUN(AM_MAINTAINER_MODE,
1970 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1971 dnl maintainer-mode is disabled by default
1972 AC_ARG_ENABLE(maintainer-mode,
1973 [ --enable-maintainer-mode enable make rules and dependencies not useful
1974 (and sometimes confusing) to the casual installer],
1975 USE_MAINTAINER_MODE=$enableval,
1976 USE_MAINTAINER_MODE=no)
1977 AC_MSG_RESULT($USE_MAINTAINER_MODE)
1978 AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
1979 MAINT=$MAINTAINER_MODE_TRUE
1984 # Define a conditional.
1986 AC_DEFUN(AM_CONDITIONAL,
1997 # Macro to add for using GNU gettext.
1998 # Ulrich Drepper <drepper@cygnus.com>, 1995.
2000 # This file file be copied and used freely without restrictions. It can
2001 # be used in projects which are not available under the GNU Public License
2002 # but which still want to provide support for the GNU gettext functionality.
2003 # Please note that the actual code is *not* freely available.
2007 AC_DEFUN(AM_WITH_NLS,
2008 [AC_MSG_CHECKING([whether NLS is requested])
2009 dnl Default is enabled NLS
2011 [ --disable-nls do not use Native Language Support],
2012 USE_NLS=$enableval, USE_NLS=yes)
2013 AC_MSG_RESULT($USE_NLS)
2016 USE_INCLUDED_LIBINTL=no
2018 dnl If we use NLS figure out what method
2019 if test "$USE_NLS" = "yes"; then
2020 AC_DEFINE(ENABLE_NLS)
2021 AC_MSG_CHECKING([whether included gettext is requested])
2022 AC_ARG_WITH(included-gettext,
2023 [ --with-included-gettext use the GNU gettext library included here],
2024 nls_cv_force_use_gnu_gettext=$withval,
2025 nls_cv_force_use_gnu_gettext=no)
2026 AC_MSG_RESULT($nls_cv_force_use_gnu_gettext)
2028 nls_cv_use_gnu_gettext="$nls_cv_force_use_gnu_gettext"
2029 if test "$nls_cv_force_use_gnu_gettext" != "yes"; then
2030 dnl User does not insist on using GNU NLS library. Figure out what
2031 dnl to use. If gettext or catgets are available (in this order) we
2032 dnl use this. Else we have to fall back to GNU NLS library.
2033 dnl catgets is only used if permitted by option --with-catgets.
2035 nls_cv_header_libgt=
2038 AC_CHECK_HEADER(libintl.h,
2039 [AC_CACHE_CHECK([for gettext in libc], gt_cv_func_gettext_libc,
2040 [AC_TRY_LINK([#include <libintl.h>], [return (int) gettext ("")],
2041 gt_cv_func_gettext_libc=yes, gt_cv_func_gettext_libc=no)])
2043 if test "$gt_cv_func_gettext_libc" != "yes"; then
2044 AC_CHECK_LIB(intl, bindtextdomain,
2045 [AC_CACHE_CHECK([for gettext in libintl],
2046 gt_cv_func_gettext_libintl,
2047 [AC_TRY_LINK([], [return (int) gettext ("")],
2048 gt_cv_func_gettext_libintl=yes,
2049 gt_cv_func_gettext_libintl=no)])])
2052 if test "$gt_cv_func_gettext_libc" = "yes" \
2053 || test "$gt_cv_func_gettext_libintl" = "yes"; then
2054 AC_DEFINE(HAVE_GETTEXT)
2055 AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
2056 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)dnl
2057 if test "$MSGFMT" != "no"; then
2058 AC_CHECK_FUNCS(dcgettext)
2059 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
2060 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
2061 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
2062 AC_TRY_LINK(, [extern int _nl_msg_cat_cntr;
2063 return _nl_msg_cat_cntr],
2073 if test "$CATOBJEXT" = "NONE"; then
2074 AC_MSG_CHECKING([whether catgets can be used])
2075 AC_ARG_WITH(catgets,
2076 [ --with-catgets use catgets functions if available],
2077 nls_cv_use_catgets=$withval, nls_cv_use_catgets=no)
2078 AC_MSG_RESULT($nls_cv_use_catgets)
2080 if test "$nls_cv_use_catgets" = "yes"; then
2081 dnl No gettext in C library. Try catgets next.
2082 AC_CHECK_LIB(i, main)
2083 AC_CHECK_FUNC(catgets,
2084 [AC_DEFINE(HAVE_CATGETS)
2085 INTLOBJS="\$(CATOBJS)"
2086 AC_PATH_PROG(GENCAT, gencat, no)dnl
2087 if test "$GENCAT" != "no"; then
2088 AC_PATH_PROG(GMSGFMT, gmsgfmt, no)
2089 if test "$GMSGFMT" = "no"; then
2090 AM_PATH_PROG_WITH_TEST(GMSGFMT, msgfmt,
2091 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], no)
2093 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
2094 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
2095 USE_INCLUDED_LIBINTL=yes
2099 INTLDEPS='$(top_builddir)/intl/libintl.a'
2101 LIBS=`echo $LIBS | sed -e 's/-lintl//'`
2102 nls_cv_header_intl=intl/libintl.h
2103 nls_cv_header_libgt=intl/libgettext.h
2108 if test "$CATOBJEXT" = "NONE"; then
2109 dnl Neither gettext nor catgets in included in the C library.
2110 dnl Fall back on GNU gettext library.
2111 nls_cv_use_gnu_gettext=yes
2115 if test "$nls_cv_use_gnu_gettext" = "yes"; then
2116 dnl Mark actions used to generate GNU NLS library.
2117 INTLOBJS="\$(GETTOBJS)"
2118 AM_PATH_PROG_WITH_TEST(MSGFMT, msgfmt,
2119 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep 'dv '`"], msgfmt)
2120 AC_PATH_PROG(GMSGFMT, gmsgfmt, $MSGFMT)
2121 AM_PATH_PROG_WITH_TEST(XGETTEXT, xgettext,
2122 [test -z "`$ac_dir/$ac_word -h 2>&1 | grep '(HELP)'`"], :)
2124 USE_INCLUDED_LIBINTL=yes
2128 INTLDEPS='$(top_builddir)/intl/libintl.a'
2130 LIBS=`echo $LIBS | sed -e 's/-lintl//'`
2131 nls_cv_header_intl=intl/libintl.h
2132 nls_cv_header_libgt=intl/libgettext.h
2135 dnl Test whether we really found GNU xgettext.
2136 if test "$XGETTEXT" != ":"; then
2137 dnl If it is no GNU xgettext we define it as : so that the
2138 dnl Makefiles still can work.
2139 if $XGETTEXT --omit-header /dev/null 2> /dev/null; then
2143 [found xgettext programs is not GNU xgettext; ignore it])
2148 # We need to process the po/ directory.
2152 nls_cv_header_intl=intl/libintl.h
2153 nls_cv_header_libgt=intl/libgettext.h
2156 # If this is used in GNU gettext we have to set USE_NLS to `yes'
2157 # because some of the sources are only built for this goal.
2158 if test "$PACKAGE" = gettext; then
2160 USE_INCLUDED_LIBINTL=yes
2163 dnl These rules are solely for the distribution goal. While doing this
2164 dnl we only have to keep exactly one list of the available catalogs
2165 dnl in configure.in.
2166 for lang in $ALL_LINGUAS; do
2167 GMOFILES="$GMOFILES $lang.gmo"
2168 POFILES="$POFILES $lang.po"
2171 dnl Make all variables we use known to autoconf.
2172 AC_SUBST(USE_INCLUDED_LIBINTL)
2175 AC_SUBST(DATADIRNAME)
2177 AC_SUBST(INSTOBJEXT)
2185 AC_DEFUN(AM_GNU_GETTEXT,
2186 [AC_REQUIRE([AC_PROG_MAKE_SET])dnl
2187 AC_REQUIRE([AC_PROG_CC])dnl
2188 AC_REQUIRE([AC_PROG_RANLIB])dnl
2189 AC_REQUIRE([AC_ISC_POSIX])dnl
2190 AC_REQUIRE([AC_HEADER_STDC])dnl
2191 AC_REQUIRE([AC_C_CONST])dnl
2192 AC_REQUIRE([AC_C_INLINE])dnl
2193 AC_REQUIRE([AC_TYPE_OFF_T])dnl
2194 AC_REQUIRE([AC_TYPE_SIZE_T])dnl
2195 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
2196 AC_REQUIRE([AC_FUNC_MMAP])dnl
2198 AC_CHECK_HEADERS([argz.h limits.h locale.h nl_types.h malloc.h string.h \
2199 unistd.h values.h sys/param.h])
2200 AC_CHECK_FUNCS([getcwd munmap putenv setenv setlocale strchr strcasecmp \
2201 __argz_count __argz_stringify __argz_next])
2203 if test "${ac_cv_func_stpcpy+set}" != "set"; then
2204 AC_CHECK_FUNCS(stpcpy)
2206 if test "${ac_cv_func_stpcpy}" = "yes"; then
2207 AC_DEFINE(HAVE_STPCPY)
2213 if test "x$CATOBJEXT" != "x"; then
2214 if test "x$ALL_LINGUAS" = "x"; then
2217 AC_MSG_CHECKING(for catalogs to be installed)
2219 for lang in ${LINGUAS=$ALL_LINGUAS}; do
2220 case "$ALL_LINGUAS" in
2221 *$lang*) NEW_LINGUAS="$NEW_LINGUAS $lang" ;;
2224 LINGUAS=$NEW_LINGUAS
2225 AC_MSG_RESULT($LINGUAS)
2228 dnl Construct list of names of catalog files to be constructed.
2229 if test -n "$LINGUAS"; then
2230 for lang in $LINGUAS; do CATALOGS="$CATALOGS $lang$CATOBJEXT"; done
2234 dnl The reference to <locale.h> in the installed <libintl.h> file
2235 dnl must be resolved because we cannot expect the users of this
2236 dnl to define HAVE_LOCALE_H.
2237 if test $ac_cv_header_locale_h = yes; then
2238 INCLUDE_LOCALE_H="#include <locale.h>"
2241 /* The system does not provide the header <locale.h>. Take care yourself. */"
2243 AC_SUBST(INCLUDE_LOCALE_H)
2245 dnl Determine which catalog format we have (if any is needed)
2246 dnl For now we know about two different formats:
2247 dnl Linux libc-5 and the normal X/Open format
2248 test -d intl || mkdir intl
2249 if test "$CATOBJEXT" = ".cat"; then
2250 AC_CHECK_HEADER(linux/version.h, msgformat=linux, msgformat=xopen)
2252 dnl Transform the SED scripts while copying because some dumb SEDs
2253 dnl cannot handle comments.
2254 sed -e '/^#/d' $srcdir/intl/$msgformat-msg.sed > intl/po2msg.sed
2256 dnl po2tbl.sed is always needed.
2257 sed -e '/^#.*[^\\]$/d' -e '/^#$/d' \
2258 $srcdir/intl/po2tbl.sed.in > intl/po2tbl.sed
2260 dnl In the intl/Makefile.in we have a special dependency which makes
2261 dnl only sense for gettext. We comment this out for non-gettext
2263 if test "$PACKAGE" = "gettext"; then
2273 dnl If the AC_CONFIG_AUX_DIR macro for autoconf is used we possibly
2274 dnl find the mkinstalldirs script in another subdir but ($top_srcdir).
2275 dnl Try to locate is.
2277 if test -n "$ac_aux_dir"; then
2278 MKINSTALLDIRS="$ac_aux_dir/mkinstalldirs"
2280 if test -z "$MKINSTALLDIRS"; then
2281 MKINSTALLDIRS="\$(top_srcdir)/mkinstalldirs"
2283 AC_SUBST(MKINSTALLDIRS)
2285 dnl *** For now the libtool support in intl/Makefile is not for real.
2289 dnl Generate list of files to be processed by xgettext which will
2290 dnl be included in po/Makefile.
2291 test -d po || mkdir po
2292 if test "x$srcdir" != "x."; then
2293 if test "x`echo $srcdir | sed 's@/.*@@'`" = "x"; then
2294 posrcprefix="$srcdir/"
2296 posrcprefix="../$srcdir/"
2302 sed -e "/^#/d" -e "/^\$/d" -e "s,.*, $posrcprefix& \\\\," -e "\$s/\(.*\) \\\\/\1/" \
2303 < $srcdir/po/POTFILES.in > po/POTFILES
2306 # Search path for a program which passes the given test.
2307 # Ulrich Drepper <drepper@cygnus.com>, 1996.
2309 # This file file be copied and used freely without restrictions. It can
2310 # be used in projects which are not available under the GNU Public License
2311 # but which still want to provide support for the GNU gettext functionality.
2312 # Please note that the actual code is *not* freely available.
2316 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
2317 dnl TEST-PERFORMED-ON-FOUND_PROGRAM [, VALUE-IF-NOT-FOUND [, PATH]])
2318 AC_DEFUN(AM_PATH_PROG_WITH_TEST,
2319 [# Extract the first word of "$2", so it can be a program name with args.
2320 set dummy $2; ac_word=[$]2
2321 AC_MSG_CHECKING([for $ac_word])
2322 AC_CACHE_VAL(ac_cv_path_$1,
2325 ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
2328 IFS="${IFS= }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
2329 for ac_dir in ifelse([$5], , $PATH, [$5]); do
2330 test -z "$ac_dir" && ac_dir=.
2331 if test -f $ac_dir/$ac_word; then
2333 ac_cv_path_$1="$ac_dir/$ac_word"
2339 dnl If no 4th arg is given, leave the cache variable unset,
2340 dnl so AC_PATH_PROGS will keep looking.
2341 ifelse([$4], , , [ test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
2346 if test -n "[$]$1"; then
2347 AC_MSG_RESULT([$]$1)
2354 # Check whether LC_MESSAGES is available in <locale.h>.
2355 # Ulrich Drepper <drepper@cygnus.com>, 1995.
2357 # This file file be copied and used freely without restrictions. It can
2358 # be used in projects which are not available under the GNU Public License
2359 # but which still want to provide support for the GNU gettext functionality.
2360 # Please note that the actual code is *not* freely available.
2364 AC_DEFUN(AM_LC_MESSAGES,
2365 [if test $ac_cv_header_locale_h = yes; then
2366 AC_CACHE_CHECK([for LC_MESSAGES], am_cv_val_LC_MESSAGES,
2367 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
2368 am_cv_val_LC_MESSAGES=yes, am_cv_val_LC_MESSAGES=no)])
2369 if test $am_cv_val_LC_MESSAGES = yes; then
2370 AC_DEFINE(HAVE_LC_MESSAGES, 1,
2371 [Define if your locale.h file contains LC_MESSAGES.])
2375 # Do all the work for Automake. This macro actually does too much --
2376 # some checks are only needed if your package does certain things.
2377 # But this isn't really a big deal.
2382 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
2384 AC_DEFUN(AM_INIT_AUTOMAKE,
2385 [AC_REQUIRE([AC_PROG_INSTALL])
2390 dnl test to see if srcdir already configured
2391 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
2392 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
2395 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
2396 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
2397 AC_REQUIRE([AM_SANITY_CHECK])
2398 AC_REQUIRE([AC_ARG_PROGRAM])
2399 dnl FIXME This is truly gross.
2400 missing_dir=`cd $ac_aux_dir && pwd`
2401 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
2402 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
2403 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
2404 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
2405 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
2406 AC_REQUIRE([AC_PROG_MAKE_SET])])
2409 # Check to make sure that the build environment is sane.
2412 AC_DEFUN(AM_SANITY_CHECK,
2413 [AC_MSG_CHECKING([whether build environment is sane])
2416 echo timestamp > conftestfile
2417 # Do `set' in a subshell so we don't clobber the current shell's
2418 # arguments. Must try -L first in case configure is actually a
2419 # symlink; some systems play weird games with the mod time of symlinks
2420 # (eg FreeBSD returns the mod time of the symlink's containing
2423 set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
2424 if test "[$]*" = "X"; then
2426 set X `ls -t $srcdir/configure conftestfile`
2428 if test "[$]*" != "X $srcdir/configure conftestfile" \
2429 && test "[$]*" != "X conftestfile $srcdir/configure"; then
2431 # If neither matched, then we have a broken ls. This can happen
2432 # if, for instance, CONFIG_SHELL is bash and it inherits a
2433 # broken ls alias from the environment. This has actually
2434 # happened. Such a system could not be considered "sane".
2435 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
2436 alias in your environment])
2439 test "[$]2" = conftestfile
2445 AC_MSG_ERROR([newly created file is older than distributed files!
2446 Check your system clock])
2449 AC_MSG_RESULT(yes)])
2451 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
2452 dnl The program must properly implement --version.
2453 AC_DEFUN(AM_MISSING_PROG,
2454 [AC_MSG_CHECKING(for working $2)
2455 # Run test in a subshell; some versions of sh will print an error if
2456 # an executable is not found, even if stderr is redirected.
2457 # Redirect stdin to placate older versions of autoconf. Sigh.
2458 if ($2 --version) < /dev/null > /dev/null 2>&1; then
2460 AC_MSG_RESULT(found)
2463 AC_MSG_RESULT(missing)
2467 # Like AC_CONFIG_HEADER, but automatically create stamp file.
2469 AC_DEFUN(AM_CONFIG_HEADER,
2471 AC_CONFIG_HEADER([$1])
2472 dnl When config.status generates a header, we must update the stamp-h file.
2473 dnl This file resides in the same directory as the config header
2474 dnl that is generated. We must strip everything past the first ":",
2475 dnl and everything past the last "/".
2476 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
2477 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
2478 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
2480 for am_file in <<$1>>; do
2481 case " <<$>>CONFIG_HEADERS " in
2482 *" <<$>>am_file "*<<)>>
2483 echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
2486 am_indx=`expr "<<$>>am_indx" + 1`