2 dnl Initialize basic configure bits, set toplevel_srcdir for Makefiles.
4 dnl GLIBCPP_TOPREL_CONFIGURE
5 AC_DEFUN(GLIBCPP_TOPREL_CONFIGURE, [
6 dnl Default to --enable-multilib (this is also passed by default
7 dnl from the ubercommon-top-level configure)
8 AC_ARG_ENABLE(multilib,
9 [ --enable-multilib build hella library versions (default)],
10 [case "${enableval}" in
13 *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
14 esac], [multilib=yes])dnl
16 # When building with srcdir == objdir, links to the source files will
17 # be created in directories within the target_subdir. We have to
18 # adjust toplevel_srcdir accordingly, so that configure finds
19 # install-sh and other auxiliary files that live in the top-level
21 if test "${srcdir}" = "."; then
22 if test -z "${with_target_subdir}"; then
25 if test "${with_target_subdir}" != "."; then
26 toprel="${with_multisrctop}../.."
28 toprel="${with_multisrctop}.."
34 AC_CONFIG_AUX_DIR(${srcdir}/$toprel)
35 toplevel_srcdir=\${top_srcdir}/$toprel
36 AC_SUBST(toplevel_srcdir)
40 dnl Initialize the rest of the library configury.
43 AC_DEFUN(GLIBCPP_CONFIGURE, [
44 # Export build and source directories.
45 # These need to be absolute paths, yet at the same time need to
46 # canonicalize only relative paths, because then amd will not unmount
47 # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd.
48 glibcpp_builddir=`${PWDCMD-pwd}`
50 [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;;
51 *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
53 AC_SUBST(glibcpp_builddir)
54 AC_SUBST(glibcpp_srcdir)
56 dnl This is here just to satisfy automake.
57 ifelse(not,equal,[AC_CONFIG_AUX_DIR(..)])
60 # Will set LN_S to either 'ln -s' or 'ln'. With autoconf 2.5x, can also
61 # be 'cp -p' if linking isn't available. Uncomment the next line to
62 # force a particular method.
63 #ac_cv_prog_LN_S='cp -p'
66 # We use these options to decide which functions to include.
67 AC_ARG_WITH(target-subdir,
68 [ --with-target-subdir=SUBDIR
69 configuring in a subdirectory])
70 AC_ARG_WITH(cross-host,
71 [ --with-cross-host=HOST configuring with a cross compiler])
73 glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3
74 AC_SUBST(glibcpp_basedir)
76 # Never versions of autoconf add an underscore to these functions.
77 # Prevent future problems ...
78 ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))])
79 ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))])
80 ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))])
81 ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))])
84 # FIXME: We temporarily define our own version of AC_PROG_CC. This is
85 # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
86 # are probably using a cross compiler, which will not be able to fully
87 # link an executable. This is addressed in later versions of autoconf.
89 AC_DEFUN(LIB_AC_PROG_CC,
90 [AC_BEFORE([$0], [AC_PROG_CPP])dnl
91 dnl Fool anybody using AC_PROG_CC.
92 AC_PROVIDE([AC_PROG_CC])
93 AC_CHECK_PROG(CC, gcc, gcc)
94 if test -z "$CC"; then
95 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
96 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
101 if test $ac_cv_prog_gcc = yes; then
103 dnl Check whether -g works, even if CFLAGS is set, in case the package
104 dnl plays around with CFLAGS (such as to build both debugging and
105 dnl normal versions of a library), tasteless as that idea is.
106 ac_test_CFLAGS="${CFLAGS+set}"
107 ac_save_CFLAGS="$CFLAGS"
110 if test "$ac_test_CFLAGS" = set; then
111 CFLAGS="$ac_save_CFLAGS"
112 elif test $ac_cv_prog_cc_g = yes; then
119 test "${CFLAGS+set}" = set || CFLAGS="-g"
125 # Likewise for AC_PROG_CXX. We can't just call it directly because g++
126 # will try to link in libstdc++.
127 AC_DEFUN(LIB_AC_PROG_CXX,
128 [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl
129 dnl Fool anybody using AC_PROG_CXX.
130 AC_PROVIDE([AC_PROG_CXX])
131 # Use glibcpp_CXX so that we do not cause CXX to be cached with the
132 # flags that come in CXX while configuring libstdc++. They're different
133 # from those used for all other target libraries. If CXX is set in
134 # the environment, respect that here.
136 AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc)
137 AC_SUBST(glibcpp_CXX)
139 test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH])
143 if test $ac_cv_prog_gxx = yes; then
145 dnl Check whether -g works, even if CXXFLAGS is set, in case the package
146 dnl plays around with CXXFLAGS (such as to build both debugging and
147 dnl normal versions of a library), tasteless as that idea is.
148 ac_test_CXXFLAGS="${CXXFLAGS+set}"
149 ac_save_CXXFLAGS="$CXXFLAGS"
152 if test "$ac_test_CXXFLAGS" = set; then
153 CXXFLAGS="$ac_save_CXXFLAGS"
154 elif test $ac_cv_prog_cxx_g = yes; then
161 test "${CXXFLAGS+set}" = set || CXXFLAGS="-g"
167 # For directory versioning (e.g., headers) and other variables.
168 AC_MSG_CHECKING([for GCC version number])
169 gcc_version=`$glibcpp_CXX -dumpversion`
170 AC_MSG_RESULT($gcc_version)
172 # For some reason, gettext needs this.
175 AC_CHECK_TOOL(AS, as)
176 AC_CHECK_TOOL(AR, ar)
177 AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error)
182 # We need AC_EXEEXT to keep automake happy in cygnus mode. However,
183 # at least currently, we never actually build a program, so we never
184 # need to use $(EXEEXT). Moreover, the test for EXEEXT normally
185 # fails, because we are probably configuring with a cross compiler
186 # which can't create executables. So we include AC_EXEEXT to keep
187 # automake happy, but we don't execute it, since we don't care about
190 # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
191 # to nothing, so nothing would remain between `then' and `fi' if it
192 # were not for the `:' below.
197 case [$]{glibcpp_basedir} in
198 /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;;
199 *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;;
202 # Find platform-specific directories containing configuration info. In
203 # addition to possibly modifying the same flags, it also sets up symlinks.
209 dnl Check to see if g++ can compile this library, and if so, if any version-
210 dnl specific precautions need to be taken.
212 dnl GLIBCPP_CHECK_COMPILER_VERSION
213 AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [
214 if test ! -f stamp-sanity-compiler; then
215 AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3])
222 ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above]))
224 AC_MSG_RESULT($gpp_satisfactory)
225 touch stamp-sanity-compiler
231 dnl Tests for newer compiler features, or features that are present in newer
232 dnl compiler versions but not older compiler versions still in use, should
235 dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the
236 dnl new inlining code or the new system_header pragma will die on -Werror.
237 dnl Leave it out by default and use maint-mode to use it.
239 dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if
240 dnl compiler supports it and the user has not requested debug mode.
242 dnl GLIBCPP_CHECK_COMPILER_FEATURES
243 AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [
244 # All these tests are for C++; save the language and the compiler flags.
245 # The CXXFLAGS thing is suspicious, but based on similar bits previously
246 # found in GLIBCPP_CONFIGURE.
249 ac_test_CXXFLAGS="${CXXFLAGS+set}"
250 ac_save_CXXFLAGS="$CXXFLAGS"
252 # Check for maintainer-mode bits.
253 if test x"$USE_MAINTAINER_MODE" = xno; then
259 # Check for -ffunction-sections -fdata-sections
260 AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
261 CXXFLAGS='-Werror -ffunction-sections -fdata-sections'
262 AC_TRY_COMPILE(, [int foo;
263 ], [ac_fdsections=yes], [ac_fdsections=no])
264 if test "$ac_test_CXXFLAGS" = set; then
265 CXXFLAGS="$ac_save_CXXFLAGS"
267 # this is the suspicious part
270 if test x"$ac_fdsections" = x"yes" &&
271 test x"$enable_debug" = x"no"; then
272 SECTION_FLAGS='-ffunction-sections -fdata-sections'
274 AC_MSG_RESULT($ac_fdsections)
278 AC_SUBST(SECTION_FLAGS)
283 dnl If GNU ld is in use, check to see if tricky linker opts can be used. If
284 dnl the native linker is in use, all variables will be defined to something
285 dnl safe (like an empty string).
287 dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible.
288 dnl Define OPT_LDFLAGS='-Wl,-O1' if possible.
289 dnl Define LD, with_gnu_ld, and (possibly) glibcpp_gnu_ld_version as
290 dnl side-effects of testing.
292 dnl GLIBCPP_CHECK_LINKER_FEATURES
293 AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [
294 # If we're not using GNU ld, then there's no point in even trying these
295 # tests. Check for that first. We should have already tested for gld
296 # by now (in libtool), but require it now just to be safe...
297 test -z "$SECTION_LDFLAGS" && SECTION_LDFLAGS=''
298 test -z "$OPT_LDFLAGS" && OPT_LDFLAGS=''
299 AC_REQUIRE([AC_PROG_LD])
301 # The name set by libtool depends on the version of libtool. Shame on us
302 # for depending on an impl detail, but c'est la vie. Older versions used
303 # ac_cv_prog_gnu_ld, but now it's lt_cv_prog_gnu_ld, and is copied back on
304 # top of with_gnu_ld (which is also set by --with-gnu-ld, so that actually
305 # makes sense). We'll test with_gnu_ld everywhere else, so if that isn't
306 # set (hence we're using an older libtool), then set it.
307 if test x${with_gnu_ld+set} != xset; then
308 if test x${ac_cv_prog_gnu_ld+set} != xset; then
309 # We got through "ac_require(ac_prog_ld)" and still not set? Huh?
312 with_gnu_ld=$ac_cv_prog_gnu_ld
316 # Start by getting the version number. I think the libtool test already
317 # does some of this, but throws away the result.
319 ldver=`$LD --version 2>/dev/null | head -1 | \
320 sed -e 's/GNU ld version \([0-9.][0-9.]*\).*/\1/'`
322 glibcpp_gnu_ld_version=`echo $ldver | \
323 $AWK -F. '{ if (NF<3) [$]3=0; print ([$]1*100+[$]2)*100+[$]3 }'`
326 if test "$with_gnu_ld" = "notbroken"; then
327 # GNU ld it is! Joy and bunny rabbits!
329 # All these tests are for C++; save the language and the compiler flags.
330 # Need to do this so that g++ won't try to link in libstdc++
331 ac_test_CFLAGS="${CFLAGS+set}"
332 ac_save_CFLAGS="$CFLAGS"
333 CFLAGS='-x c++ -Wl,--gc-sections'
335 # Check for -Wl,--gc-sections
336 # XXX This test is broken at the moment, as symbols required for
337 # linking are now in libsupc++ (not built yet.....). In addition,
338 # this test has cored on solaris in the past. In addition,
339 # --gc-sections doesn't really work at the moment (keeps on discarding
340 # used sections, first .eh_frame and now some of the glibc sections for
341 # iconv). Bzzzzt. Thanks for playing, maybe next time.
342 AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections])
350 ], [ac_sectionLDflags=yes],[ac_sectionLDflags=no], [ac_sectionLDflags=yes])
351 if test "$ac_test_CFLAGS" = set; then
352 CFLAGS="$ac_save_CFLAGS"
354 # this is the suspicious part
357 if test "$ac_sectionLDflags" = "yes"; then
358 SECTION_LDFLAGS="-Wl,--gc-sections $SECTION_LDFLAGS"
360 AC_MSG_RESULT($ac_sectionLDflags)
363 # Set linker optimization flags.
364 if test x"$with_gnu_ld" = x"yes" && test x"$enable_debug" = x"no"; then
365 OPT_LDFLAGS="-Wl,-O1 $OPT_LDFLAGS"
368 AC_SUBST(SECTION_LDFLAGS)
369 AC_SUBST(OPT_LDFLAGS)
374 dnl Check to see if the (math function) argument passed is
375 dnl declared when using the c++ compiler
376 dnl ASSUMES argument is a math function with ONE parameter
378 dnl GLIBCPP_CHECK_MATH_DECL_1
379 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [
380 AC_MSG_CHECKING([for $1 declaration])
381 if test x${glibcpp_cv_func_$1_use+set} != xset; then
382 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
385 AC_TRY_COMPILE([#include <math.h>
391 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
395 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
399 dnl Check to see if the (math function) argument passed is
400 dnl 1) declared when using the c++ compiler
401 dnl 2) has "C" linkage
402 dnl 3) if not, see if 1) and 2) for argument prepended with '_'
404 dnl Define HAVE_CARGF etc if "cargf" is declared and links
406 dnl argument 1 is name of function to check
408 dnl ASSUMES argument is a math function with ONE parameter
410 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1
411 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [
412 GLIBCPP_CHECK_MATH_DECL_1($1)
413 if test x$glibcpp_cv_func_$1_use = x"yes"; then
416 GLIBCPP_CHECK_MATH_DECL_1(_$1)
417 if test x$glibcpp_cv_func__$1_use = x"yes"; then
425 dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of
426 dnl of functions at once. It's an all-or-nothing check -- either
427 dnl HAVE_XYZ is defined for each of the functions, or for none of them.
428 dnl Doing it this way saves significant configure time.
429 AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [
430 AC_MSG_CHECKING([for $1 functions])
431 AC_CACHE_VAL(glibcpp_cv_func_$2_use, [
434 AC_TRY_COMPILE([#include <math.h>],
435 [ `for x in $3; do echo "$x (0);"; done` ],
436 [glibcpp_cv_func_$2_use=yes],
437 [glibcpp_cv_func_$2_use=no])
439 AC_MSG_RESULT($glibcpp_cv_func_$2_use)
440 if test x$glibcpp_cv_func_$2_use = x"yes"; then
446 dnl Check to see if the (math function) argument passed is
447 dnl declared when using the c++ compiler
448 dnl ASSUMES argument is a math function with TWO parameters
450 dnl GLIBCPP_CHECK_MATH_DECL_2
451 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [
452 AC_MSG_CHECKING([for $1 declaration])
453 if test x${glibcpp_cv_func_$1_use+set} != xset; then
454 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
457 AC_TRY_COMPILE([#include <math.h>],
459 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
463 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
467 dnl Check to see if the (math function) argument passed is
468 dnl 1) declared when using the c++ compiler
469 dnl 2) has "C" linkage
471 dnl Define HAVE_CARGF etc if "cargf" is declared and links
473 dnl argument 1 is name of function to check
475 dnl ASSUMES argument is a math function with TWO parameters
477 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2
478 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [
479 GLIBCPP_CHECK_MATH_DECL_2($1)
480 if test x$glibcpp_cv_func_$1_use = x"yes"; then
483 GLIBCPP_CHECK_MATH_DECL_2(_$1)
484 if test x$glibcpp_cv_func__$1_use = x"yes"; then
492 dnl Check to see if the (math function) argument passed is
493 dnl declared when using the c++ compiler
494 dnl ASSUMES argument is a math function with THREE parameters
496 dnl GLIBCPP_CHECK_MATH_DECL_3
497 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [
498 AC_MSG_CHECKING([for $1 declaration])
499 if test x${glibcpp_cv_func_$1_use+set} != xset; then
500 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
503 AC_TRY_COMPILE([#include <math.h>],
505 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
509 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
513 dnl Check to see if the (math function) argument passed is
514 dnl 1) declared when using the c++ compiler
515 dnl 2) has "C" linkage
517 dnl Define HAVE_CARGF etc if "cargf" is declared and links
519 dnl argument 1 is name of function to check
521 dnl ASSUMES argument is a math function with THREE parameters
523 dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3
524 AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [
525 GLIBCPP_CHECK_MATH_DECL_3($1)
526 if test x$glibcpp_cv_func_$1_use = x"yes"; then
529 GLIBCPP_CHECK_MATH_DECL_3(_$1)
530 if test x$glibcpp_cv_func__$1_use = x"yes"; then
538 dnl Check to see if the (stdlib function) argument passed is
539 dnl 1) declared when using the c++ compiler
540 dnl 2) has "C" linkage
542 dnl argument 1 is name of function to check
544 dnl ASSUMES argument is a math function with TWO parameters
546 dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2
547 AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [
548 AC_MSG_CHECKING([for $1 declaration])
549 if test x${glibcpp_cv_func_$1_use+set} != xset; then
550 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
553 AC_TRY_COMPILE([#include <stdlib.h>],
555 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
559 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
560 if test x$glibcpp_cv_func_$1_use = x"yes"; then
567 dnl Check to see if the (stdlib function) argument passed is
568 dnl 1) declared when using the c++ compiler
569 dnl 2) has "C" linkage
571 dnl argument 1 is name of function to check
573 dnl ASSUMES argument is a function with THREE parameters
575 dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3
576 AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3, [
577 AC_MSG_CHECKING([for $1 declaration])
578 if test x${glibcpp_cv_func_$1_use+set} != xset; then
579 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
582 AC_TRY_COMPILE([#include <stdlib.h>],
584 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
588 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
589 if test x$glibcpp_cv_func_$1_use = x"yes"; then
596 dnl Because the builtins are picky picky picky about the arguments they take,
597 dnl do an explict linkage tests here.
598 dnl Check to see if the (math function) argument passed is
599 dnl 1) declared when using the c++ compiler
600 dnl 2) has "C" linkage
602 dnl Define HAVE_CARGF etc if "cargf" is declared and links
604 dnl argument 1 is name of function to check
606 dnl ASSUMES argument is a math function with ONE parameter
608 dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1
609 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [
610 AC_MSG_CHECKING([for $1 declaration])
611 if test x${glibcpp_cv_func_$1_use+set} != xset; then
612 AC_CACHE_VAL(glibcpp_cv_func_$1_use, [
615 AC_TRY_COMPILE([#include <math.h>],
617 [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no])
621 AC_MSG_RESULT($glibcpp_cv_func_$1_use)
622 if test x$glibcpp_cv_func_$1_use = x"yes"; then
623 AC_MSG_CHECKING([for $1 linkage])
624 if test x${glibcpp_cv_func_$1_link+set} != xset; then
625 AC_CACHE_VAL(glibcpp_cv_func_$1_link, [
626 AC_TRY_LINK([#include <math.h>],
628 [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no])
631 AC_MSG_RESULT($glibcpp_cv_func_$1_link)
632 if test x$glibcpp_cv_func_$1_link = x"yes"; then
633 ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
634 AC_DEFINE_UNQUOTED(${ac_tr_func})
641 dnl Check to see what builtin math functions are supported
643 dnl check for __builtin_abs
644 dnl check for __builtin_fabsf
645 dnl check for __builtin_fabs
646 dnl check for __builtin_fabl
647 dnl check for __builtin_labs
648 dnl check for __builtin_sqrtf
649 dnl check for __builtin_sqrtl
650 dnl check for __builtin_sqrt
651 dnl check for __builtin_sinf
652 dnl check for __builtin_sin
653 dnl check for __builtin_sinl
654 dnl check for __builtin_cosf
655 dnl check for __builtin_cos
656 dnl check for __builtin_cosl
658 dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT
659 AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [
660 dnl Test for builtin math functions.
661 dnl These are made in gcc/c-common.c
662 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs)
663 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf)
664 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs)
665 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl)
666 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs)
668 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf)
669 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrt)
670 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl)
672 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf)
673 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin)
674 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl)
676 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf)
677 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos)
678 GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl)
680 dnl There is, without a doubt, a more elegant way to have these
681 dnl names exported so that they won't be stripped out of acconfig.h by
682 dnl autoheader. I leave this as an exercise to somebody less frustrated
683 dnl than I.... please email the libstdc++ list if you can figure out a
684 dnl more elegant approach (see autoconf/acgen.m4 and specifically
685 dnl AC_CHECK_FUNC for things to steal.)
687 if test x$dummyvar = x"yes"; then
688 AC_DEFINE(HAVE___BUILTIN_ABS)
689 AC_DEFINE(HAVE___BUILTIN_LABS)
690 AC_DEFINE(HAVE___BUILTIN_COS)
691 AC_DEFINE(HAVE___BUILTIN_COSF)
692 AC_DEFINE(HAVE___BUILTIN_COSL)
693 AC_DEFINE(HAVE___BUILTIN_FABS)
694 AC_DEFINE(HAVE___BUILTIN_FABSF)
695 AC_DEFINE(HAVE___BUILTIN_FABSL)
696 AC_DEFINE(HAVE___BUILTIN_SIN)
697 AC_DEFINE(HAVE___BUILTIN_SINF)
698 AC_DEFINE(HAVE___BUILTIN_SINL)
699 AC_DEFINE(HAVE___BUILTIN_SQRT)
700 AC_DEFINE(HAVE___BUILTIN_SQRTF)
701 AC_DEFINE(HAVE___BUILTIN_SQRTL)
707 dnl Check to see what the underlying c library
708 dnl These checks need to do two things:
709 dnl 1) make sure the name is declared when using the c++ compiler
710 dnl 2) make sure the name has "C" linkage
711 dnl This might seem like overkill but experience has shown that it's not...
713 dnl Define HAVE_STRTOLD if "strtold" is declared and links
714 dnl Define HAVE_STRTOF if "strtof" is declared and links
715 dnl Define HAVE_DRAND48 if "drand48" is declared and links
717 dnl GLIBCPP_CHECK_STDLIB_SUPPORT
718 AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [
719 ac_test_CXXFLAGS="${CXXFLAGS+set}"
720 ac_save_CXXFLAGS="$CXXFLAGS"
721 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
723 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold)
724 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtof)
725 AC_CHECK_FUNCS(drand48)
727 CXXFLAGS="$ac_save_CXXFLAGS"
732 dnl Check to see what the underlying c library or math library is like.
733 dnl These checks need to do two things:
734 dnl 1) make sure the name is declared when using the c++ compiler
735 dnl 2) make sure the name has "C" linkage
736 dnl This might seem like overkill but experience has shown that it's not...
738 dnl Define HAVE_CARGF etc if "cargf" is found.
740 dnl GLIBCPP_CHECK_MATH_SUPPORT
741 AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [
742 ac_test_CXXFLAGS="${CXXFLAGS+set}"
743 ac_save_CXXFLAGS="$CXXFLAGS"
744 CXXFLAGS='-fno-builtins -D_GNU_SOURCE'
747 AC_CHECK_LIB(m, sin, libm="-lm")
751 dnl Check to see if certain C math functions exist.
752 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf)
753 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan)
754 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite)
755 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign)
756 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos)
757 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass)
758 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass)
759 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot)
761 dnl Check to see if basic C math functions have float versions.
762 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig,
767 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round,
770 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf)
771 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf)
772 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff)
773 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f)
774 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf)
775 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf)
776 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf)
777 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf)
778 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf)
779 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf)
780 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f)
781 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff)
782 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf)
783 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf)
784 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf)
785 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef)
787 dnl Check to see if basic C math functions have long double versions.
788 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig,
793 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round,
796 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl)
797 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl)
798 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl)
799 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l)
800 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl)
801 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl)
802 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl)
803 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl)
804 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl)
805 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl)
806 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl)
807 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l)
808 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl)
809 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl)
810 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl)
811 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl)
812 GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel)
814 dnl Some runtimes have these functions with a preceding underscore. Please
815 dnl keep this sync'd with the one above. And if you add any new symbol,
816 dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h.
817 dnl Check to see if certain C math functions exist.
819 dnl Check to see if basic C math functions have float versions.
820 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig,
822 _acosf _asinf _atanf \
824 _coshf _sinhf _tanhf)
825 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round,
829 dnl Check to see if basic C math functions have long double versions.
830 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig,
832 _acosl _asinl _atanl \
834 _coshl _sinhl _tanhl)
835 GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round,
840 CXXFLAGS="$ac_save_CXXFLAGS"
845 dnl Check to see if there is native support for complex
847 dnl Don't compile bits in math/* if native support exits.
849 dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found.
851 dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT
852 AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [
853 dnl Check for complex versions of math functions of platform.
854 AC_CHECK_LIB(m, main)
855 AC_REPLACE_MATHFUNCS(nan copysignf)
857 dnl For __signbit to signbit conversions.
858 AC_CHECK_FUNCS([__signbit], , [LIBMATHOBJS="$LIBMATHOBJS signbit.lo"])
859 AC_CHECK_FUNCS([__signbitf], , [LIBMATHOBJS="$LIBMATHOBJS signbitf.lo"])
861 dnl Compile the long double complex functions only if the function
862 dnl provides the non-complex long double functions that are needed.
863 dnl Currently this includes copysignl, which should be
864 dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above.
865 if test x$ac_cv_func_copysignl = x"yes"; then
866 AC_CHECK_FUNCS([__signbitl], , [LIBMATHOBJS="$LIBMATHOBJS signbitl.lo"])
869 AC_SUBST(LIBMATHOBJS)
873 dnl Check to see what architecture and operating system we are compiling
874 dnl for. Also, if architecture- or OS-specific flags are required for
875 dnl compilation, pick them up here.
877 dnl GLIBCPP_CHECK_TARGET
878 AC_DEFUN(GLIBCPP_CHECK_TARGET, [
879 . [$]{glibcpp_basedir}/configure.target
880 AC_MSG_RESULT(CPU config directory is $cpu_include_dir)
881 AC_MSG_RESULT(OS config directory is $os_include_dir)
886 dnl Check to see if this target can enable the wchar_t parts of libstdc++.
887 dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This
888 dnl must have been previously checked.)
890 dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found
891 dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h
893 dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT
894 AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [
896 dnl Test wchar.h for mbstate_t, which is needed for char_traits and
897 dnl others even if wchar_t support is not on.
898 AC_MSG_CHECKING([for mbstate_t])
899 AC_TRY_COMPILE([#include <wchar.h>],
900 [mbstate_t teststate;],
901 have_mbstate_t=yes, have_mbstate_t=no)
902 AC_MSG_RESULT($have_mbstate_t)
903 if test x"$have_mbstate_t" = xyes; then
904 AC_DEFINE(HAVE_MBSTATE_T)
907 dnl Sanity check for existence of ISO C99 headers for extended encoding.
908 AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no)
909 AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
911 dnl Only continue checking if the ISO C99 headers exist and support is on.
912 if test x"$ac_has_wchar_h" = xyes &&
913 test x"$ac_has_wctype_h" = xyes &&
914 test x"$enable_c_mbchar" != xno; then
916 dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before
917 dnl numeric_limits can instantiate type_traits<wchar_t>
918 AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX])
919 AC_TRY_COMPILE([#include <wchar.h>],
920 [int i = WCHAR_MIN; int j = WCHAR_MAX;],
921 has_wchar_minmax=yes, has_wchar_minmax=no)
922 AC_MSG_RESULT($has_wchar_minmax)
924 dnl Test wchar.h for WEOF, which is what we use to determine whether
925 dnl to specialize for char_traits<wchar_t> or not.
926 AC_MSG_CHECKING([for WEOF])
929 #include <stddef.h>],
931 has_weof=yes, has_weof=no)
932 AC_MSG_RESULT($has_weof)
934 dnl Tests for wide character functions used in char_traits<wchar_t>.
936 AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \
939 dnl Checks for names injected into std:: by the c_std headers.
940 AC_CHECK_FUNCS(btowc wctob fgetwc fgetwc fgetws fputwc fputws fwide \
941 fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \
942 vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \
943 mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \
944 wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \
945 wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \
948 AC_MSG_CHECKING([for ISO C99 wchar_t support])
949 if test x"$has_weof" = xyes &&
950 test x"$has_wchar_minmax" = xyes &&
951 test x"$ac_wfuncs" = xyes; then
952 ac_isoC99_wchar_t=yes
956 AC_MSG_RESULT($ac_isoC99_wchar_t)
958 dnl Use iconv for wchar_t to char conversions. As such, check for
959 dnl X/Open Portability Guide, version 2 features (XPG2).
960 AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no)
961 AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no)
963 dnl Check for existence of libiconv.a providing XPG2 wchar_t support.
964 AC_CHECK_LIB(iconv, iconv, libiconv="-liconv")
966 LIBS="$LIBS $libiconv"
968 AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \
969 ac_XPG2funcs=yes, ac_XPG2funcs=no)
973 AC_MSG_CHECKING([for XPG2 wchar_t support])
974 if test x"$ac_has_iconv_h" = xyes &&
975 test x"$ac_has_langinfo_h" = xyes &&
976 test x"$ac_XPG2funcs" = xyes; then
981 AC_MSG_RESULT($ac_XPG2_wchar_t)
983 dnl At the moment, only enable wchar_t specializations if all the
984 dnl above support is present.
985 AC_MSG_CHECKING([for enabled wchar_t specializations])
986 if test x"$ac_isoC99_wchar_t" = xyes &&
987 test x"$ac_XPG2_wchar_t" = xyes; then
988 AC_DEFINE(_GLIBCPP_USE_WCHAR_T)
994 dnl Wide characters disabled by the user.
995 AC_MSG_WARN([wchar_t support disabled.])
1001 dnl Check for special debugging mode; not for production use.
1003 dnl GLIBCPP_ENABLE_DEBUG
1004 dnl --enable-debug sets '-ggdb3 -O0'.
1005 dnl --disable-debug sets '-g' and whatever optimization options the
1006 dnl compiler can handle.
1007 dnl + --enable-maintainer-mode automatically defaults this to on.
1008 dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...?
1009 dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)]
1010 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1011 dnl defaults to `no'.
1012 AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl
1013 define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl
1014 AC_ARG_ENABLE(debug,
1015 changequote(<<, >>)dnl
1016 << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT],
1017 changequote([, ])dnl
1018 [case "${enableval}" in
1019 yes) enable_debug=yes ;;
1020 no) enable_debug=no ;;
1021 *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;;
1023 enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl
1025 dnl Option parsed, now set things appropriately
1026 case "${enable_debug}" in
1028 DEBUG_FLAGS='-O0 -ggdb3'
1034 AC_SUBST(DEBUG_FLAGS)
1039 dnl Check for "unusual" flags to pass to the compiler while building.
1041 dnl GLIBCPP_ENABLE_CXX_FLAGS
1042 dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing
1043 dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc.
1044 dnl Somehow this same set of flags must be passed when [re]building
1046 dnl --disable-cxx-flags passes nothing.
1047 dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html
1048 dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html
1049 dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html
1050 dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags)
1051 dnl If "default flags" is an empty string (or "none"), the effect is
1052 dnl the same as --disable or --enable=no.
1053 AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl
1054 define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl
1055 AC_ARG_ENABLE(cxx-flags,
1056 changequote(<<, >>)dnl
1057 << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library;
1058 [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT],
1059 changequote([, ])dnl
1060 [case "x$enableval" in
1062 AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;;
1064 enable_cxx_flags='' ;;
1066 enable_cxx_flags="$enableval" ;;
1068 enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT')
1070 dnl Thinko on my part during design. This kludge is the workaround.
1071 if test "$enable_cxx_flags" = "none"; then
1072 enable_cxx_flags='';
1075 dnl Run through flags (either default or command-line) and set anything
1076 dnl extra (e.g., #defines) that must accompany particular g++ options.
1077 if test -n "$enable_cxx_flags"; then
1078 for f in $enable_cxx_flags; do
1082 *) # and we're trying to pass /what/ exactly?
1083 AC_MSG_ERROR([compiler flags start with a -]) ;;
1087 EXTRA_CXX_FLAGS="$enable_cxx_flags"
1088 AC_SUBST(EXTRA_CXX_FLAGS)
1093 dnl Check for which locale library to use: gnu or generic.
1095 dnl GLIBCPP_ENABLE_CLOCALE
1096 dnl --enable-clocale=gnu sets config/locale/c_locale_gnu.cc and friends
1097 dnl --enable-clocale=generic sets config/locale/c_locale_generic.cc and friends
1099 dnl default is generic
1101 AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
1102 AC_MSG_CHECKING([for clocale to use])
1103 AC_ARG_ENABLE(clocale,
1104 [ --enable-clocale enable model for target locale package.
1105 --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic]
1107 if test x$enable_clocale = xno; then
1112 enable_clocale_flag=$enable_clocale
1114 dnl Probe for locale support if no specific model is specified.
1115 dnl Default to "generic"
1116 if test x$enable_clocale_flag = xno; then
1117 case x${target_os} in
1119 AC_EGREP_CPP([_GLIBCPP_ok], [
1120 #include <features.h>
1121 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1124 ], enable_clocale_flag=gnu, enable_clocale_flag=generic)
1126 # Test for bugs early in glibc-2.2.x series
1127 if test x$enable_clocale_flag = xgnu; then
1129 #define _GNU_SOURCE 1
1132 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
1133 extern __typeof(newlocale) __newlocale;
1134 extern __typeof(duplocale) __duplocale;
1135 extern __typeof(strcoll_l) __strcoll_l;
1139 const char __one[] = "Äuglein Augmen";
1140 const char __two[] = "Äuglein";
1145 loc = __newlocale(1 << LC_ALL, "de_DE", 0);
1146 loc_dup = __duplocale(loc);
1147 i = __strcoll_l(__one, __two, loc);
1148 j = __strcoll_l(__one, __two, loc_dup);
1152 [enable_clocale_flag=gnu],[enable_clocale_flag=generic],
1153 [enable_clocale_flag=generic])
1156 # ... at some point put __strxfrm_l tests in as well.
1159 enable_clocale_flag=generic
1164 dnl Deal with gettext issues.
1166 [ --enable-nls use Native Language Support (default)],
1170 dnl Set configure bits for specified locale package
1171 case x${enable_clocale_flag} in
1173 AC_MSG_RESULT(generic)
1175 CLOCALE_H=config/locale/generic/c_locale.h
1176 CLOCALE_CC=config/locale/generic/c_locale.cc
1177 CCODECVT_H=config/locale/generic/codecvt_specializations.h
1178 CCODECVT_CC=config/locale/generic/codecvt_members.cc
1179 CCOLLATE_CC=config/locale/generic/collate_members.cc
1180 CCTYPE_CC=config/locale/generic/ctype_members.cc
1181 CMESSAGES_H=config/locale/generic/messages_members.h
1182 CMESSAGES_CC=config/locale/generic/messages_members.cc
1183 CMONEY_CC=config/locale/generic/monetary_members.cc
1184 CNUMERIC_CC=config/locale/generic/numeric_members.cc
1185 CTIME_CC=config/locale/generic/time_members.cc
1186 CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
1191 # Declare intention to use gettext, and add support for specific
1193 # For some reason, ALL_LINGUAS has to be before AM-GNU-GETTEXT
1196 # Don't call AM-GNU-GETTEXT here. Instead, assume glibc.
1197 AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no)
1198 if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
1201 # Export the build objects.
1202 for ling in $ALL_LINGUAS; do \
1203 glibcpp_MOFILES="$glibcpp_MOFILES $ling.mo"; \
1204 glibcpp_POFILES="$glibcpp_POFILES $ling.po"; \
1206 AC_SUBST(glibcpp_MOFILES)
1207 AC_SUBST(glibcpp_POFILES)
1209 CLOCALE_H=config/locale/gnu/c_locale.h
1210 CLOCALE_CC=config/locale/gnu/c_locale.cc
1211 CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
1212 CCODECVT_CC=config/locale/gnu/codecvt_members.cc
1213 CCOLLATE_CC=config/locale/gnu/collate_members.cc
1214 CCTYPE_CC=config/locale/gnu/ctype_members.cc
1215 CMESSAGES_H=config/locale/gnu/messages_members.h
1216 CMESSAGES_CC=config/locale/gnu/messages_members.cc
1217 CMONEY_CC=config/locale/gnu/monetary_members.cc
1218 CNUMERIC_CC=config/locale/gnu/numeric_members.cc
1219 CTIME_CC=config/locale/gnu/time_members.cc
1220 CLOCALE_INTERNAL_H=config/locale/gnu/c++locale_internal.h
1223 AC_MSG_RESULT(generic)
1225 CLOCALE_H=config/locale/ieee_1003.1-2001/c_locale.h
1226 CLOCALE_CC=config/locale/ieee_1003.1-2001/c_locale.cc
1227 CCODECVT_H=config/locale/ieee_1003.1-2001/codecvt_specializations.h
1228 CCODECVT_CC=config/locale/generic/codecvt_members.cc
1229 CCOLLATE_CC=config/locale/generic/collate_members.cc
1230 CCTYPE_CC=config/locale/generic/ctype_members.cc
1231 CMESSAGES_H=config/locale/ieee_1003.1-2001/messages_members.h
1232 CMESSAGES_CC=config/locale/ieee_1003.1-2001/messages_members.cc
1233 CMONEY_CC=config/locale/generic/monetary_members.cc
1234 CNUMERIC_CC=config/locale/generic/numeric_members.cc
1235 CTIME_CC=config/locale/generic/time_members.cc
1236 CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
1239 echo "$enable_clocale is an unknown locale package" 1>&2
1244 # This is where the testsuite looks for locale catalogs, using the
1245 # -DLOCALEDIR define during testsuite compilation.
1246 glibcpp_localedir=${glibcpp_builddir}/po/share/locale
1247 AC_SUBST(glibcpp_localedir)
1249 # For the time being, transform ctype_noninline.h to ctype_members_char.cc
1250 # CCTYPE_CHAR_CC=config/${os_include_dir}/ctype_noninline.h
1254 AC_SUBST(CCODECVT_H)
1255 AC_SUBST(CMESSAGES_H)
1256 AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc)
1257 AC_LINK_FILES($CCODECVT_CC, src/codecvt_members.cc)
1258 AC_LINK_FILES($CCOLLATE_CC, src/collate_members.cc)
1259 # AC_LINK_FILES($CCTYPE_CHAR_CC, src/ctype_members_char.cc)
1260 AC_LINK_FILES($CCTYPE_CC, src/ctype_members.cc)
1261 AC_LINK_FILES($CMESSAGES_CC, src/messages_members.cc)
1262 AC_LINK_FILES($CMONEY_CC, src/monetary_members.cc)
1263 AC_LINK_FILES($CNUMERIC_CC, src/numeric_members.cc)
1264 AC_LINK_FILES($CTIME_CC, src/time_members.cc)
1265 AC_LINK_FILES($CLOCALE_INTERNAL_H, src/c++locale_internal.h)
1270 dnl Check for which I/O library to use: libio, or something specific.
1272 dnl GLIBCPP_ENABLE_CSTDIO
1273 dnl --enable-cstdio=libio sets config/io/c_io_libio.h and friends
1275 dnl default is stdio
1277 AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [
1278 AC_MSG_CHECKING([for cstdio to use])
1279 AC_ARG_ENABLE(cstdio,
1280 [ --enable-cstdio enable stdio for target io package.
1281 --enable-cstdio=LIB use LIB target-speific io package. [default=stdio]
1283 if test x$enable_cstdio = xno; then
1286 enable_cstdio=stdio)
1288 enable_cstdio_flag=$enable_cstdio
1290 dnl Check if a valid I/O package
1291 case x${enable_cstdio_flag} in
1293 CSTDIO_H=config/io/c_io_libio.h
1294 BASIC_FILE_H=config/io/basic_file_libio.h
1295 BASIC_FILE_CC=config/io/basic_file_libio.cc
1296 AC_MSG_RESULT(libio)
1298 # see if we are on a system with libio native (ie, linux)
1299 AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no)
1301 # Need to check and see what version of glibc is being used. If
1302 # it's not glibc-2.2 or higher, then we'll need to go ahead and
1303 # compile most of libio for linux systems.
1304 if test x$has_libio = x"yes"; then
1307 AC_MSG_CHECKING([for glibc version >= 2.2])
1308 AC_EGREP_CPP([ok], [
1309 #include <features.h>
1310 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
1313 ], glibc_satisfactory=yes, glibc_satisfactory=no)
1314 AC_MSG_RESULT($glibc_satisfactory)
1318 # XXX at the moment, admit defeat and force the recompilation
1319 # XXX of glibc even on glibc-2.2 systems, because libio is not synched.
1320 glibc_satisfactory=no
1322 if test x$glibc_satisfactory = x"yes"; then
1327 # bkoz XXX need to add checks to enable this
1328 # pme XXX here's a first pass at such a check
1329 if test x$enable_c_mbchar != xno; then
1337 # Using libio, but <libio.h> doesn't exist on the target system. . .
1339 # bkoz XXX need to add checks to enable this
1340 # pme XXX here's a first pass at such a check
1341 if test x$enable_c_mbchar != xno; then
1348 xstdio | x | xno | xnone | xyes)
1350 CSTDIO_H=config/io/c_io_stdio.h
1351 BASIC_FILE_H=config/io/basic_file_stdio.h
1352 BASIC_FILE_CC=config/io/basic_file_stdio.cc
1353 AC_MSG_RESULT(stdio)
1355 # We're not using stdio.
1360 echo "$enable_cstdio is an unknown io package" 1>&2
1365 AC_SUBST(BASIC_FILE_H)
1366 AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc)
1368 # 2000-08-04 bkoz hack
1369 CCODECVT_C=config/io/c_io_libio_codecvt.c
1370 AC_SUBST(CCODECVT_C)
1371 # 2000-08-04 bkoz hack
1373 AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO,
1374 test "$need_libio" = yes || test "$need_wlibio" = yes)
1375 AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes)
1376 AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes)
1377 if test "$need_libio" = yes || test "$need_wlibio" = yes; then
1378 libio_la=../libio/libio.la
1387 dnl Setup to use the gcc gthr.h thread-specific memory and mutex model.
1388 dnl We must stage the required headers so that they will be installed
1389 dnl with the library (unlike libgcc, the STL implementation is provided
1390 dnl solely within headers). Since we must not inject random user-space
1391 dnl macro names into user-provided C++ code, we first stage into <file>-in
1392 dnl and process to <file> with an output command. The reason for a two-
1393 dnl stage process here is to correctly handle $srcdir!=$objdir without
1394 dnl having to write complex code (the sed commands to clean the macro
1395 dnl namespace are complex and fragile enough as it is). We must also
1396 dnl add a relative path so that -I- is supported properly.
1398 AC_DEFUN(GLIBCPP_ENABLE_THREADS, [
1399 AC_MSG_CHECKING([for thread model used by GCC])
1400 target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
1401 AC_MSG_RESULT([$target_thread_file])
1403 if test $target_thread_file != single; then
1404 AC_DEFINE(HAVE_GTHR_DEFAULT)
1405 AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__)
1408 glibcpp_thread_h=gthr-$target_thread_file.h
1409 AC_SUBST(glibcpp_thread_h)
1414 dnl Check for exception handling support. If an explicit enable/disable
1415 dnl sjlj exceptions is given, we don't have to detect. Otherwise the
1416 dnl target may or may not support call frame exceptions.
1418 dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS
1419 dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
1420 dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
1422 dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it.
1424 AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [
1425 AC_MSG_CHECKING([for exception model to use])
1428 AC_ARG_ENABLE(sjlj-exceptions,
1429 [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions],
1431 [dnl Botheration. Now we've got to detect the exception model.
1432 dnl Link tests against libgcc.a are problematic since -- at least
1433 dnl as of this writing -- we've not been given proper -L bits for
1434 dnl single-tree newlib and libgloss.
1436 dnl This is what AC_TRY_COMPILE would do if it didn't delete the
1437 dnl conftest files before we got a change to grep them first.
1438 cat > conftest.$ac_ext << EOF
1439 [#]line __oline__ "configure"
1448 old_CXXFLAGS="$CXXFLAGS"
1450 if AC_TRY_EVAL(ac_compile); then
1451 if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
1452 enable_sjlj_exceptions=yes
1453 elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
1454 enable_sjlj_exceptions=no
1457 CXXFLAGS="$old_CXXFLAGS"
1459 if test x$enable_sjlj_exceptions = xyes; then
1460 AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1,
1461 [Define if the compiler is configured for setjmp/longjmp exceptions.])
1462 ac_exception_model_name=sjlj
1463 elif test x$enable_sjlj_exceptions = xno; then
1464 ac_exception_model_name="call frame"
1466 AC_MSG_ERROR([unable to detect exception model])
1469 AC_MSG_RESULT($ac_exception_model_name)
1474 dnl Check for libunwind exception handling support. If enabled then
1475 dnl we assume that the _Unwind_* functions that make up the Unwind ABI
1476 dnl (_Unwind_RaiseException, _Unwind_Resume, etc.) are defined by
1477 dnl libunwind instead of libgcc and that libstdc++ has a dependency
1478 dnl on libunwind as well as libgcc.
1480 dnl GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS
1481 dnl --enable-libunwind-exceptions forces the use of libunwind.
1482 dnl --disable-libunwind-exceptions assumes there is no libunwind.
1484 dnl Define _GLIBCPP_LIBUNWIND_EXCEPTIONS if requested.
1486 AC_DEFUN(GLIBCPP_ENABLE_LIBUNWIND_EXCEPTIONS, [
1487 AC_MSG_CHECKING([for use of libunwind])
1488 AC_ARG_ENABLE(libunwind-exceptions,
1489 [ --enable-libunwind-exceptions force use of libunwind for exceptions],
1490 use_libunwind_exceptions=$enableval,
1491 use_libunwind_exceptions=no)
1492 AC_MSG_RESULT($use_libunwind_exceptions)
1493 dnl Option parsed, now set things appropriately
1494 if test x"$use_libunwind_exceptions" = xyes; then
1495 LIBUNWIND_FLAG="-lunwind"
1499 AC_SUBST(LIBUNWIND_FLAG)
1503 dnl Check for ISO/IEC 9899:1999 "C99" support.
1505 dnl GLIBCPP_ENABLE_C99
1506 dnl --enable-c99 defines _GLIBCPP_USE_C99
1507 dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined
1508 dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)]
1509 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1510 dnl defaults to `no'.
1511 dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'.
1513 dnl GLIBCPP_ENABLE_C99
1514 AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl
1515 define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl
1518 changequote(<<, >>)dnl
1519 <<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT],
1520 changequote([, ])dnl
1521 [case "$enableval" in
1522 yes) enable_c99=yes ;;
1523 no) enable_c99=no ;;
1524 *) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;;
1526 enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl
1531 # Check for the existence of <math.h> functions used if C99 is enabled.
1533 AC_MSG_CHECKING([for ISO C99 support in <math.h>])
1534 AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no])
1535 AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no])
1536 AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no])
1537 AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no])
1538 AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no])
1539 AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no])
1540 AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no])
1541 AC_TRY_COMPILE([#include <math.h>],
1542 [isgreaterequal(0.0,0.0);],, [ac_c99_math=no])
1543 AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no])
1544 AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no])
1545 AC_TRY_COMPILE([#include <math.h>],
1546 [islessgreater(0.0,0.0);],, [ac_c99_math=no])
1547 AC_TRY_COMPILE([#include <math.h>],
1548 [isunordered(0.0,0.0);],, [ac_c99_math=no])
1549 AC_MSG_RESULT($ac_c99_math)
1551 # Check for the existence in <stdio.h> of vscanf, et. al.
1553 AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
1554 AC_TRY_COMPILE([#include <stdio.h>],
1555 [snprintf("12", 0, "%i");],, [ac_c99_stdio=no])
1556 AC_TRY_COMPILE([#include <stdio.h>
1558 void foo(char* fmt, ...)
1559 {va_list args; va_start(args, fmt);
1560 vfscanf(stderr, "%i", args);}],
1561 [],, [ac_c99_stdio=no])
1562 AC_TRY_COMPILE([#include <stdio.h>
1564 void foo(char* fmt, ...)
1565 {va_list args; va_start(args, fmt);
1566 vscanf("%i", args);}],
1567 [],, [ac_c99_stdio=no])
1568 AC_TRY_COMPILE([#include <stdio.h>
1570 void foo(char* fmt, ...)
1571 {va_list args; va_start(args, fmt);
1572 vsnprintf(fmt, 0, "%i", args);}],
1573 [],, [ac_c99_stdio=no])
1574 AC_TRY_COMPILE([#include <stdio.h>
1576 void foo(char* fmt, ...)
1577 {va_list args; va_start(args, fmt);
1578 vsscanf(fmt, "%i", args);}],
1579 [],, [ac_c99_stdio=no])
1580 AC_MSG_RESULT($ac_c99_stdio)
1582 # Check for the existence in <stdlib.h> of lldiv_t, et. al.
1584 AC_MSG_CHECKING([for lldiv_t declaration])
1585 AC_CACHE_VAL(ac_c99_lldiv_t, [
1586 AC_TRY_COMPILE([#include <stdlib.h>],
1588 [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no])
1590 AC_MSG_RESULT($ac_c99_lldiv_t)
1592 AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
1593 AC_TRY_COMPILE([#include <stdlib.h>],
1594 [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no])
1595 AC_TRY_COMPILE([#include <stdlib.h>],
1596 [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no])
1597 AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no])
1598 AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no])
1599 AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no])
1600 AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no])
1601 if test x"$ac_c99_lldiv_t" = x"no"; then
1604 AC_MSG_RESULT($ac_c99_stdlib)
1606 # Check for the existence of <wchar.h> functions used if C99 is enabled.
1607 # XXX the wchar.h checks should be rolled into the general C99 bits.
1609 AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>])
1610 AC_TRY_COMPILE([#include <wchar.h>],
1611 [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no])
1612 AC_TRY_COMPILE([#include <wchar.h>],
1613 [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no])
1614 AC_TRY_COMPILE([#include <wchar.h>],
1615 [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no])
1616 AC_MSG_RESULT($ac_c99_wchar)
1618 AC_MSG_CHECKING([for enabled ISO C99 support])
1619 if test x"$ac_c99_math" = x"no" ||
1620 test x"$ac_c99_stdio" = x"no" ||
1621 test x"$ac_c99_stdlib" = x"no" ||
1622 test x"$ac_c99_wchar" = x"no"; then
1625 AC_MSG_RESULT($enable_c99)
1627 # Option parsed, now set things appropriately
1628 if test x"$enable_c99" = x"yes"; then
1629 AC_DEFINE(_GLIBCPP_USE_C99)
1637 dnl Check for template specializations for the 'long long' type extension.
1638 dnl The result determines only whether 'long long' I/O is enabled; things
1639 dnl like numeric_limits<> specializations are always available.
1641 dnl GLIBCPP_ENABLE_LONG_LONG
1642 dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG
1643 dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined
1644 dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)]
1645 dnl Where DEFAULT is either `yes' or `no'. If omitted, it
1646 dnl defaults to `no'.
1647 dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
1649 dnl GLIBCPP_ENABLE_LONG_LONG
1650 AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl
1651 define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl
1653 AC_ARG_ENABLE(long-long,
1654 changequote(<<, >>)dnl
1655 <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT],
1656 changequote([, ])dnl
1657 [case "$enableval" in
1658 yes) enable_long_long=yes ;;
1659 no) enable_long_long=no ;;
1660 *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;;
1662 enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl
1667 AC_MSG_CHECKING([for enabled long long I/O support])
1668 # iostreams require strtoll, strtoull to compile
1669 AC_TRY_COMPILE([#include <stdlib.h>],
1670 [char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
1671 AC_TRY_COMPILE([#include <stdlib.h>],
1672 [char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
1674 # Option parsed, now set things appropriately
1675 if test x"$enable_long_long" = xyes; then
1676 AC_DEFINE(_GLIBCPP_USE_LONG_LONG)
1678 AC_MSG_RESULT($enable_long_long)
1685 dnl Check for what kind of C headers to use.
1687 dnl GLIBCPP_ENABLE_CHEADERS
1688 dnl --enable-cheaders= [does stuff].
1689 dnl --disable-cheaders [does not do anything, really].
1690 dnl + This will eventually need to be 'c_shadow' by default.
1691 dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)]
1692 dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'.
1693 dnl If ommitted, it defaults to `c_std'.
1694 AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl
1695 define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl
1696 AC_MSG_CHECKING([for c header strategy to use])
1697 AC_ARG_ENABLE(cheaders,
1698 changequote(<<, >>)dnl
1699 << --enable-cheaders construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT],
1701 [case "$enableval" in
1706 enable_cheaders=c_std
1709 enable_cheaders=c_shadow
1711 *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers])
1714 enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT)
1715 AC_MSG_RESULT($enable_cheaders)
1717 dnl Option parsed, now set things appropriately
1718 case "$enable_cheaders" in
1720 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow'
1723 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std'
1726 C_INCLUDE_DIR='${glibcpp_srcdir}/include/c'
1730 AC_SUBST(C_INCLUDE_DIR)
1731 AM_CONDITIONAL(GLIBCPP_C_HEADERS_C, test "$enable_cheaders" = c)
1732 AM_CONDITIONAL(GLIBCPP_C_HEADERS_C_STD, test "$enable_cheaders" = c_std)
1733 AM_CONDITIONAL(GLIBCPP_C_HEADERS_COMPATIBILITY, test "$c_compatibility" = yes)
1738 dnl Check for wide character support. Has the same effect as the option
1739 dnl in gcc's configure, but in a form that autoconf can mess with.
1741 dnl GLIBCPP_ENABLE_C_MBCHAR
1742 dnl --enable-c-mbchar requests all the wchar_t stuff.
1743 dnl --disable-c-mbchar doesn't.
1744 dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)]
1745 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
1746 dnl defaults to `no'.
1747 AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl
1748 define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl
1749 AC_ARG_ENABLE(c-mbchar,
1750 changequote(<<, >>)dnl
1751 << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT],
1752 changequote([, ])dnl
1753 [case "$enableval" in
1754 yes) enable_c_mbchar=yes ;;
1755 no) enable_c_mbchar=no ;;
1756 *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;;
1758 enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl
1759 dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no.
1764 dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's.
1766 dnl TOPLEVEL_INCLUDES
1767 dnl LIBMATH_INCLUDES
1768 dnl LIBSUPCXX_INCLUDES
1770 dnl CSHADOW_INCLUDES
1772 dnl GLIBCPP_EXPORT_INCLUDES
1773 AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [
1774 # Root level of the build directory include sources.
1775 GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include"
1777 # Passed down for canadian crosses.
1778 if test x"$CANADIAN" = xyes; then
1779 TOPLEVEL_INCLUDES='-I$(includedir)'
1782 LIBMATH_INCLUDES='-I$(top_srcdir)/libmath'
1784 LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++'
1786 if test x"$need_libio" = xyes; then
1787 LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio'
1788 AC_SUBST(LIBIO_INCLUDES)
1791 # Now, export this to all the little Makefiles....
1792 AC_SUBST(GLIBCPP_INCLUDES)
1793 AC_SUBST(TOPLEVEL_INCLUDES)
1794 AC_SUBST(LIBMATH_INCLUDES)
1795 AC_SUBST(LIBSUPCXX_INCLUDES)
1800 dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's.
1802 AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [
1803 # Optimization flags that are probably a good idea for thrill-seekers. Just
1804 # uncomment the lines below and make, everything else is ready to go...
1805 # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
1807 AC_SUBST(OPTIMIZE_CXXFLAGS)
1809 WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline'
1810 AC_SUBST(WARN_FLAGS)
1814 dnl GLIBCPP_EXPORT_INSTALL_INFO
1815 dnl calculates gxx_install_dir
1816 dnl exports glibcpp_toolexecdir
1817 dnl exports glibcpp_toolexeclibdir
1818 dnl exports glibcpp_prefixdir
1820 dnl Assumes cross_compiling bits already done, and with_cross_host in
1823 dnl GLIBCPP_EXPORT_INSTALL_INFO
1824 AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [
1825 # Assumes glibcpp_builddir, glibcpp_srcdir are alreay set up and
1826 # exported correctly in GLIBCPP_CONFIGURE.
1827 glibcpp_toolexecdir=no
1828 glibcpp_toolexeclibdir=no
1829 glibcpp_prefixdir=${prefix}
1831 # Process the option --with-gxx-include-dir=<path to include-files directory>
1832 AC_MSG_CHECKING([for --with-gxx-include-dir])
1833 AC_ARG_WITH(gxx-include-dir,
1834 [ --with-gxx-include-dir the installation directory for include files],
1835 [case "${withval}" in
1837 AC_MSG_ERROR(Missing directory for --with-gxx-include-dir)
1844 gxx_include_dir=${withval}
1846 esac], [gxx_include_dir=no])
1847 AC_MSG_RESULT($gxx_include_dir)
1849 # Process the option "--enable-version-specific-runtime-libs"
1850 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
1851 AC_ARG_ENABLE(version-specific-runtime-libs,
1852 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
1853 [case "$enableval" in
1854 yes) version_specific_libs=yes ;;
1855 no) version_specific_libs=no ;;
1856 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
1858 version_specific_libs=no)dnl
1859 # Option set, now we can test it.
1860 AC_MSG_RESULT($version_specific_libs)
1862 # Default case for install directory for include files.
1863 if test $version_specific_libs = no && test $gxx_include_dir = no; then
1864 gxx_include_dir='$(prefix)'/include/c++/${gcc_version}
1867 # Version-specific runtime libs processing.
1868 if test $version_specific_libs = yes; then
1869 # Need the gcc compiler version to know where to install libraries
1870 # and header files if --enable-version-specific-runtime-libs option
1872 if test x"$gxx_include_dir" = x"no"; then
1873 gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/c++
1875 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1876 glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)'
1879 # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir
1880 # Install a library built with a cross compiler in tooldir, not libdir.
1881 if test x"$glibcpp_toolexecdir" = x"no"; then
1882 if test -n "$with_cross_host" &&
1883 test x"$with_cross_host" != x"no"; then
1884 glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)'
1885 glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)'
1887 glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
1888 glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)'
1892 AC_MSG_CHECKING([for install location])
1893 AC_MSG_RESULT($gxx_include_dir)
1895 AC_SUBST(glibcpp_prefixdir)
1896 AC_SUBST(gxx_include_dir)
1897 AC_SUBST(glibcpp_toolexecdir)
1898 AC_SUBST(glibcpp_toolexeclibdir)
1902 # Check for functions in math library.
1903 # Ulrich Drepper <drepper@cygnus.com>, 1998.
1905 # This file can be copied and used freely without restrictions. It can
1906 # be used in projects which are not available under the GNU Public License
1907 # but which still want to provide support for the GNU gettext functionality.
1908 # Please note that the actual code is *not* freely available.
1912 dnl AC_REPLACE_MATHFUNCS(FUNCTION...)
1913 AC_DEFUN(AC_REPLACE_MATHFUNCS,
1914 [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"])])
1917 dnl This macro searches for a GNU version of make. If a match is found, the
1918 dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is
1919 dnl set to "#". This is useful for including a special features in a Makefile,
1920 dnl which cannot be handled by other versions of make. The variable
1921 dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists,
1922 dnl the empty string otherwise.
1924 dnl Here is an example of its use:
1926 dnl Makefile.in might contain:
1928 dnl # A failsafe way of putting a dependency rule into a makefile
1930 dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND)
1932 dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND)))
1933 dnl @ifGNUmake@ include $(DEPEND)
1934 dnl @ifGNUmake@ endif
1936 dnl Then configure.in would normally contain:
1938 dnl CHECK_GNU_MAKE()
1939 dnl AC_OUTPUT(Makefile)
1941 dnl Then perhaps to cause gnu make to override any other make, we could do
1942 dnl something like this (note that GNU make always looks for GNUmakefile first):
1944 dnl if ! test x$_cv_gnu_make_command = x ; then
1945 dnl mv Makefile GNUmakefile
1946 dnl echo .DEFAULT: > Makefile ;
1947 dnl echo \ $_cv_gnu_make_command \$@ >> Makefile;
1950 dnl Then, if any (well almost any) other make is called, and GNU make also
1951 dnl exists, then the other make wraps the GNU make.
1953 dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au>
1954 dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme
1956 dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending
1957 dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the
1958 dnl #### conditional's subshell (" --version" is not a command), using a
1959 dnl #### different option to grep(1).
1961 dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not
1962 dnl #### ${MAKE:-make}).
1965 GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command,
1966 _cv_gnu_make_command='' ;
1967 dnl Search all the common names for GNU make
1968 for a in "${MAKE-make}" make gmake gnumake ; do
1969 if ( $a --version 2> /dev/null | grep -c GNU > /dev/null )
1971 _cv_gnu_make_command=$a ;
1976 dnl If there was a GNU version, then set @ifGNUmake@ to the empty
1977 dnl string, '#' otherwise
1978 if test "x$_cv_gnu_make_command" != "x" ; then
1987 dnl Check for headers for, and arguments to, the setrlimit() function.
1988 dnl Used only in testsuite_hooks.h.
1989 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [
1990 AC_TRY_COMPILE([#include <unistd.h>
1991 #include <sys/time.h>
1992 #include <sys/resource.h>
1993 ], [ int f = RLIMIT_$1 ; ],
1994 [glibcpp_mresult=1], [glibcpp_mresult=0])
1995 AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult,
1996 [Only used in build directory testsuite_hooks.h.])
1998 AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [
1999 setrlimit_have_headers=yes
2000 AC_CHECK_HEADERS(unistd.h sys/time.h sys/resource.h,
2002 setrlimit_have_headers=no)
2003 # If don't have the headers, then we can't run the tests now, and we
2004 # won't be seeing any of these during testsuite compilation.
2005 if test $setrlimit_have_headers = yes; then
2006 # Can't do these in a loop, else the resulting syntax is wrong.
2007 GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA)
2008 GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS)
2009 GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM)
2010 GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS)
2012 # Check for rlimit, setrlimit.
2013 AC_CACHE_VAL(ac_setrlimit, [
2014 AC_TRY_COMPILE([#include <unistd.h>
2015 #include <sys/time.h>
2016 #include <sys/resource.h>
2018 [ struct rlimit r; setrlimit(0, &r);],
2019 [ac_setrlimit=yes], [ac_setrlimit=no])
2023 AC_MSG_CHECKING([for testsuite memory limit support])
2024 if test $setrlimit_have_headers = yes && test $ac_setrlimit = yes; then
2026 AC_DEFINE(_GLIBCPP_MEM_LIMITS)
2030 AC_MSG_RESULT($ac_mem_limits)
2035 dnl Does any necessary configuration of the testsuite directory. Generates
2036 dnl the testsuite_hooks.h header.
2038 dnl GLIBCPP_CONFIGURE_TESTSUITE [no args]
2039 AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [
2040 GLIBCPP_CHECK_SETRLIMIT
2042 # Look for setenv, so that extended locale tests can be performed.
2043 GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_3(setenv)
2045 # Export file names for ABI checking.
2046 baseline_file="${glibcpp_srcdir}/config/abi/${abi_baseline_triplet}/baseline_symbols.txt"
2047 AC_SUBST(baseline_file)
2049 # Don't do ABI checking unless native.
2050 AM_CONDITIONAL(GLIBCPP_BUILD_ABI_CHECK,
2051 test x"$build" = x"$host" && test -z "$with_cross_host")
2055 sinclude(../libtool.m4)
2056 dnl The lines below arrange for aclocal not to bring an installed
2057 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
2058 dnl add a definition of LIBTOOL to Makefile.in.
2059 ifelse(,,,[AC_SUBST(LIBTOOL)
2060 AC_DEFUN([AM_PROG_LIBTOOL])
2061 AC_DEFUN([AC_LIBTOOL_DLOPEN])
2062 AC_DEFUN([AC_PROG_LD])
2066 # Check whether LC_MESSAGES is available in <locale.h>.
2067 # Ulrich Drepper <drepper@cygnus.com>, 1995.
2069 # This file file be copied and used freely without restrictions. It can
2070 # be used in projects which are not available under the GNU Public License
2071 # but which still want to provide support for the GNU gettext functionality.
2072 # Please note that the actual code is *not* freely available.
2076 AC_DEFUN(AC_LC_MESSAGES, [
2077 AC_CHECK_HEADER(locale.h, [
2078 AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
2079 [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES],
2080 ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
2081 if test $ac_cv_val_LC_MESSAGES = yes; then
2082 AC_DEFINE(HAVE_LC_MESSAGES)
2089 dnl Check for whether the Boost-derived checks should be turned on.
2091 dnl GLIBCPP_ENABLE_CONCEPT_CHECKS
2092 dnl --enable-concept-checks turns them on.
2093 dnl --disable-concept-checks leaves them off.
2094 dnl + Usage: GLIBCPP_ENABLE_CONCEPT_CHECKS[(DEFAULT)]
2095 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
2096 dnl defaults to `no'.
2097 AC_DEFUN(GLIBCPP_ENABLE_CONCEPT_CHECKS, [dnl
2098 define([GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT], ifelse($1, yes, yes, no))dnl
2099 AC_ARG_ENABLE(concept-checks,
2100 changequote(<<, >>)dnl
2101 << --enable-concept-checks use Boost-derived template checks [default=>>GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT],
2102 changequote([, ])dnl
2103 [case "$enableval" in
2104 yes) enable_concept_checks=yes ;;
2105 no) enable_concept_checks=no ;;
2106 *) AC_MSG_ERROR([Unknown argument to enable/disable concept checks]) ;;
2108 enable_concept_checks=GLIBCPP_ENABLE_CONCEPT_CHECKS_DEFAULT)dnl
2109 dnl Option parsed, now set things appropriately
2110 if test x"$enable_concept_checks" = xyes; then
2111 AC_DEFINE(_GLIBCPP_CONCEPT_CHECKS)
2117 dnl Add version tags to symbols in shared library (or not), additionally
2118 dnl marking other symbols as private/local (or not).
2120 dnl GLIBCPP_ENABLE_SYMVERS
2121 dnl --enable-symvers=style adds a version script to the linker call when
2122 dnl creating the shared library. The choice of version script is
2123 dnl controlled by 'style'.
2124 dnl --disable-symvers does not.
2125 dnl + Usage: GLIBCPP_ENABLE_SYMVERS[(DEFAULT)]
2126 dnl Where DEFAULT is either `yes' or `no'. If ommitted, it
2127 dnl defaults to `no'. Passing `yes' tries to choose a default style
2128 dnl based on linker characteristics. Passing 'no' disables versioning.
2129 AC_DEFUN(GLIBCPP_ENABLE_SYMVERS, [dnl
2130 define([GLIBCPP_ENABLE_SYMVERS_DEFAULT], ifelse($1, yes, yes, no))dnl
2131 AC_ARG_ENABLE(symvers,
2132 changequote(<<, >>)dnl
2133 << --enable-symvers=style enables symbol versioning of the shared library [default=>>GLIBCPP_ENABLE_SYMVERS_DEFAULT],
2134 changequote([, ])dnl
2135 [case "$enableval" in
2136 yes) enable_symvers=yes ;;
2137 no) enable_symvers=no ;;
2138 # other names here, just as sanity checks
2139 #gnu|sun|etcetera) enable_symvers=$enableval ;;
2140 gnu) enable_symvers=$enableval ;;
2141 *) AC_MSG_ERROR([Unknown argument to enable/disable symvers]) ;;
2143 enable_symvers=GLIBCPP_ENABLE_SYMVERS_DEFAULT)dnl
2145 # If we never went through the GLIBCPP_CHECK_LINKER_FEATURES macro, then we
2146 # don't know enough about $LD to do tricks...
2147 if test x$enable_shared = xno ||
2149 test x$glibcpp_gnu_ld_version = x; then
2153 # Check to see if libgcc_s exists, indicating that shared libgcc is possible.
2154 if test $enable_symvers != no; then
2155 AC_MSG_CHECKING([for shared libgcc])
2156 ac_save_CFLAGS="$CFLAGS"
2158 AC_TRY_LINK(, [return 0], glibcpp_shared_libgcc=yes, glibcpp_shared_libgcc=no)
2159 CFLAGS="$ac_save_CFLAGS"
2160 AC_MSG_RESULT($glibcpp_shared_libgcc)
2163 # For GNU ld, we need at least this version. It's 2.12 in the same format
2164 # as the tested-for version. See GLIBCPP_CHECK_LINKER_FEATURES for more.
2165 glibcpp_min_gnu_ld_version=21200
2167 # Check to see if unspecified "yes" value can win, given results
2169 if test $enable_symvers = yes ; then
2170 if test $with_gnu_ld = yes &&
2171 test $glibcpp_shared_libgcc = yes ;
2173 if test $glibcpp_gnu_ld_version -ge $glibcpp_min_gnu_ld_version ; then
2176 ac_test_CFLAGS="${CFLAGS+set}"
2177 ac_save_CFLAGS="$CFLAGS"
2178 CFLAGS='-shared -Wl,--version-script,conftest.map'
2181 echo 'FOO { global: f[a-z]o; local: *; };' > conftest.map
2183 AC_TRY_LINK([int foo;],, enable_symvers=gnu)
2184 if test "$ac_test_CFLAGS" = set; then
2185 CFLAGS="$ac_save_CFLAGS"
2187 # this is the suspicious part
2198 dnl Everything parsed; figure out what file to use.
2199 case $enable_symvers in
2201 LINKER_MAP=config/linker-map.dummy
2204 LINKER_MAP=config/linker-map.gnu
2208 AC_LINK_FILES($LINKER_MAP, src/linker.map)
2209 AM_CONDITIONAL(GLIBCPP_BUILD_VERSIONED_SHLIB, test $enable_symvers != no)
2210 AC_MSG_CHECKING([versioning on shared library symbols])
2211 AC_MSG_RESULT($enable_symvers)