# Keep these sync'd with the list in Makefile.am. The first provides an
# expandable list at autoconf time; the second provides an expandable list
# (i.e., shell variable) at configure time.
- m4_define([glibcxx_SUBDIRS],[include libmath libsupc++ src po testsuite])
+ m4_define([glibcxx_SUBDIRS],[include libmath libsupc++ src doc po testsuite])
SUBDIRS='glibcxx_SUBDIRS'
# These need to be absolute paths, yet at the same time need to
dnl LD (as a side effect of testing)
dnl Sets:
dnl with_gnu_ld
+dnl glibcxx_ld_is_gold (set to "no" or "yes")
dnl glibcxx_gnu_ld_version (possibly)
dnl
dnl The last will be a single integer, e.g., version 1.23.45.0.67.89 will
# Start by getting the version number. I think the libtool test already
# does some of this, but throws away the result.
+ glibcxx_ld_is_gold=no
if test x"$with_gnu_ld" = x"yes"; then
AC_MSG_CHECKING([for ld version])
changequote(,)
+ if $LD --version 2>/dev/null | grep 'GNU gold' >/dev/null 2>&1; then
+ glibcxx_ld_is_gold=yes
+ fi
ldver=`$LD --version 2>/dev/null | head -1 | \
- sed -e 's/GNU ld \(version \)\{0,1\}\(([^)]*) \)\{0,1\}\([0-9.][0-9.]*\).*/\3/'`
+ sed -e 's/GNU \(go\)\{0,1\}ld \(version \)\{0,1\}\(([^)]*) \)\{0,1\}\([0-9.][0-9.]*\).*/\4/'`
changequote([,])
glibcxx_gnu_ld_version=`echo $ldver | \
$AWK -F. '{ if (NF<3) [$]3=0; print ([$]1*100+[$]2)*100+[$]3 }'`
fi
# Set --gc-sections.
- glibcxx_gcsections_min_ld=21602
- if test x"$with_gnu_ld" = x"yes" &&
+ glibcxx_have_gc_sections=no
+ if test "$glibcxx_ld_is_gold" = "yes"; then
+ if $LD --help 2>/dev/null | grep gc-sections >/dev/null 2>&1; then
+ glibcxx_have_gc_sections=yes
+ fi
+ else
+ glibcxx_gcsections_min_ld=21602
+ if test x"$with_gnu_ld" = x"yes" &&
test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
-
+ glibcxx_have_gc_sections=yes
+ fi
+ fi
+ if test "$glibcxx_have_gc_sections" = "yes"; then
# Sufficiently young GNU ld it is! Joy and bunny rabbits!
# NB: This flag only works reliably after 2.16.1. Configure tests
# for this are difficult, so hard wire a value that should work.
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
+ # Use -std=c++98 because the default (-std=gnu++98) leaves __STRICT_ANSI__
+ # undefined and fake C99 facilities - like pre-standard snprintf - may be
+ # spuriously enabled.
+ # Long term, -std=c++0x could be even better, could manage to explicitely
+ # request C99 facilities to the underlying C headers.
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -std=c++98"
+ ac_save_LIBS="$LIBS"
+ ac_save_gcc_no_link="$gcc_no_link"
+
+ if test x$gcc_no_link != xyes; then
+ # Use -fno-exceptions to that the C driver can link these tests without
+ # hitting undefined references to personality routines.
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+ AC_CHECK_LIB(m, sin, [
+ LIBS="$LIBS -lm"
+ ], [
+ # Use the default compile-only tests in GCC_TRY_COMPILE_OR_LINK
+ gcc_no_link=yes
+ ])
+ fi
+
# Check for the existence of <math.h> functions used if C99 is enabled.
AC_MSG_CHECKING([for ISO C99 support in <math.h>])
AC_CACHE_VAL(ac_c99_math, [
- AC_TRY_COMPILE([#include <math.h>],
- [fpclassify(0.0);
- isfinite(0.0);
- isinf(0.0);
- isnan(0.0);
- isnormal(0.0);
- signbit(0.0);
- isgreater(0.0,0.0);
- isgreaterequal(0.0,0.0);
- isless(0.0,0.0);
- islessequal(0.0,0.0);
- islessgreater(0.0,0.0);
- islessgreater(0.0,0.0);
- isunordered(0.0,0.0);
- ],[ac_c99_math=yes], [ac_c99_math=no])
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <math.h>
+ volatile double d1, d2;
+ volatile int i;],
+ [i = fpclassify(d1);
+ i = isfinite(d1);
+ i = isinf(d1);
+ i = isnan(d1);
+ i = isnormal(d1);
+ i = signbit(d1);
+ i = isgreater(d1, d2);
+ i = isgreaterequal(d1, d2);
+ i = isless(d1, d2);
+ i = islessequal(d1, d2);
+ i = islessgreater(d1, d2);
+ i = islessgreater(d1, d2);
+ i = isunordered(d1, d2);
+ ],[ac_c99_math=yes], [ac_c99_math=no])
])
AC_MSG_RESULT($ac_c99_math)
if test x"$ac_c99_math" = x"yes"; then
ac_c99_complex=no;
if test x"$ac_has_complex_h" = x"yes"; then
AC_MSG_CHECKING([for ISO C99 support in <complex.h>])
- AC_TRY_COMPILE([#include <complex.h>],
- [typedef __complex__ float float_type; float_type tmpf;
- cabsf(tmpf);
- cargf(tmpf);
- ccosf(tmpf);
- ccoshf(tmpf);
- cexpf(tmpf);
- clogf(tmpf);
- csinf(tmpf);
- csinhf(tmpf);
- csqrtf(tmpf);
- ctanf(tmpf);
- ctanhf(tmpf);
- cpowf(tmpf, tmpf);
- typedef __complex__ double double_type; double_type tmpd;
- cabs(tmpd);
- carg(tmpd);
- ccos(tmpd);
- ccosh(tmpd);
- cexp(tmpd);
- clog(tmpd);
- csin(tmpd);
- csinh(tmpd);
- csqrt(tmpd);
- ctan(tmpd);
- ctanh(tmpd);
- cpow(tmpd, tmpd);
- typedef __complex__ long double ld_type; ld_type tmpld;
- cabsl(tmpld);
- cargl(tmpld);
- ccosl(tmpld);
- ccoshl(tmpld);
- cexpl(tmpld);
- clogl(tmpld);
- csinl(tmpld);
- csinhl(tmpld);
- csqrtl(tmpld);
- ctanl(tmpld);
- ctanhl(tmpld);
- cpowl(tmpld, tmpld);
- ],[ac_c99_complex=yes], [ac_c99_complex=no])
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <complex.h>
+ typedef __complex__ float float_type;
+ typedef __complex__ double double_type;
+ typedef __complex__ long double ld_type;
+ volatile float_type tmpf;
+ volatile double_type tmpd;
+ volatile ld_type tmpld;
+ volatile float f;
+ volatile double d;
+ volatile long double ld;],
+ [f = cabsf(tmpf);
+ f = cargf(tmpf);
+ tmpf = ccosf(tmpf);
+ tmpf = ccoshf(tmpf);
+ tmpf = cexpf(tmpf);
+ tmpf = clogf(tmpf);
+ tmpf = csinf(tmpf);
+ tmpf = csinhf(tmpf);
+ tmpf = csqrtf(tmpf);
+ tmpf = ctanf(tmpf);
+ tmpf = ctanhf(tmpf);
+ tmpf = cpowf(tmpf, tmpf);
+ d = cabs(tmpd);
+ d = carg(tmpd);
+ tmpd = ccos(tmpd);
+ tmpd = ccosh(tmpd);
+ tmpd = cexp(tmpd);
+ tmpd = clog(tmpd);
+ tmpd = csin(tmpd);
+ tmpd = csinh(tmpd);
+ tmpd = csqrt(tmpd);
+ tmpd = ctan(tmpd);
+ tmpd = ctanh(tmpd);
+ tmpd = cpow(tmpd, tmpd);
+ ld = cabsl(tmpld);
+ ld = cargl(tmpld);
+ tmpld = ccosl(tmpld);
+ tmpld = ccoshl(tmpld);
+ tmpld = cexpl(tmpld);
+ tmpld = clogl(tmpld);
+ tmpld = csinl(tmpld);
+ tmpld = csinhl(tmpld);
+ tmpld = csqrtl(tmpld);
+ tmpld = ctanl(tmpld);
+ tmpld = ctanhl(tmpld);
+ tmpld = cpowl(tmpld, tmpld);
+ ],[ac_c99_complex=yes], [ac_c99_complex=no])
fi
AC_MSG_RESULT($ac_c99_complex)
if test x"$ac_c99_complex" = x"yes"; then
# Check for the existence in <stdio.h> of vscanf, et. al.
AC_MSG_CHECKING([for ISO C99 support in <stdio.h>])
AC_CACHE_VAL(ac_c99_stdio, [
- AC_TRY_COMPILE([#include <stdio.h>
- #include <stdarg.h>
- void foo(char* fmt, ...)
- {
- va_list args; va_start(args, fmt);
- vfscanf(stderr, "%i", args);
- vscanf("%i", args);
- vsnprintf(fmt, 0, "%i", args);
- vsscanf(fmt, "%i", args);
- }],
- [snprintf("12", 0, "%i");],
- [ac_c99_stdio=yes], [ac_c99_stdio=no])
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <stdio.h>
+ #include <stdarg.h>
+ void foo(char* fmt, ...)
+ {
+ va_list args; va_start(args, fmt);
+ vfscanf(stderr, "%i", args);
+ vscanf("%i", args);
+ vsnprintf(fmt, 0, "%i", args);
+ vsscanf(fmt, "%i", args);
+ }],
+ [snprintf("12", 0, "%i");],
+ [ac_c99_stdio=yes], [ac_c99_stdio=no])
])
AC_MSG_RESULT($ac_c99_stdio)
# Check for the existence in <stdlib.h> of lldiv_t, et. al.
AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>])
AC_CACHE_VAL(ac_c99_stdlib, [
- AC_TRY_COMPILE([#include <stdlib.h>],
- [char* tmp;
- strtof("gnu", &tmp);
- strtold("gnu", &tmp);
- strtoll("gnu", &tmp, 10);
- strtoull("gnu", &tmp, 10);
- llabs(10);
- lldiv(10,1);
- atoll("10");
- _Exit(0);
- lldiv_t mydivt;],[ac_c99_stdlib=yes], [ac_c99_stdlib=no])
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <stdlib.h>
+ volatile float f;
+ volatile long double ld;
+ volatile unsigned long long ll;
+ lldiv_t mydivt;],
+ [char* tmp;
+ f = strtof("gnu", &tmp);
+ ld = strtold("gnu", &tmp);
+ ll = strtoll("gnu", &tmp, 10);
+ ll = strtoull("gnu", &tmp, 10);
+ ll = llabs(10);
+ mydivt = lldiv(10,1);
+ ll = mydivt.quot;
+ ll = mydivt.rem;
+ ll = atoll("10");
+ _Exit(0);
+ ],[ac_c99_stdlib=yes], [ac_c99_stdlib=no])
])
AC_MSG_RESULT($ac_c99_stdlib)
<complex.h>, <stdio.h>, and <stdlib.h> can be used or exposed.])
fi
+ gcc_no_link="$ac_save_gcc_no_link"
+ LIBS="$ac_save_LIBS"
+ CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
fi
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
+ # Use -std=c++98 because the default (-std=gnu++98) leaves __STRICT_ANSI__
+ # undefined and fake C99 facilities may be spuriously enabled.
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -std=c++98"
+
# Check for the existence of <complex.h> complex math functions used
# by tr1/complex.
AC_CHECK_HEADERS(complex.h, ac_has_complex_h=yes, ac_has_complex_h=no)
# Check for the existence of the <stdbool.h> header.
AC_CHECK_HEADERS(stdbool.h)
+ CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
])
])
dnl
+dnl Check whether macros, etc are present for <system_error>
+dnl
+AC_DEFUN([GLIBCXX_CHECK_SYSTEM_ERROR], [
+
+ AC_MSG_CHECKING([for EOWNERDEAD])
+ AC_CACHE_VAL(ac_system_error1, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = EOWNERDEAD; ],
+ [ac_system_error1=yes], [ac_system_error1=no])
+ ])
+ AC_MSG_RESULT($ac_system_error1)
+ if test x"$ac_system_error1" = x"yes"; then
+ AC_DEFINE(HAVE_EOWNERDEAD, 1, [Define if EOWNERDEAD exists.])
+ fi
+
+ AC_MSG_CHECKING([for ENOTRECOVERABLE])
+ AC_CACHE_VAL(ac_system_error2, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = ENOTRECOVERABLE; ],
+ [ac_system_error2=yes], [ac_system_error2=no])
+ ])
+ AC_MSG_RESULT($ac_system_error2)
+ if test x"$ac_system_error2" = x"yes"; then
+ AC_DEFINE(HAVE_ENOTRECOVERABLE, 1, [Define if ENOTRECOVERABLE exists.])
+ fi
+
+ AC_MSG_CHECKING([for ENOLINK])
+ AC_CACHE_VAL(ac_system_error3, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = ENOLINK; ],
+ [ac_system_error3=yes], [ac_system_error3=no])
+ ])
+ AC_MSG_RESULT($ac_system_error3)
+ if test x"$ac_system_error3" = x"yes"; then
+ AC_DEFINE(HAVE_ENOLINK, 1, [Define if ENOLINK exists.])
+ fi
+
+ AC_MSG_CHECKING([for EPROTO])
+ AC_CACHE_VAL(ac_system_error_4, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = EPROTO; ],
+ [ac_system_error_4=yes], [ac_system_error_4=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_4)
+ if test x"$ac_system_error_4" = x"yes"; then
+ AC_DEFINE(HAVE_EPROTO, 1, [Define if EPROTO exists.])
+ fi
+
+ AC_MSG_CHECKING([for ENODATA])
+ AC_CACHE_VAL(ac_system_error_5, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = ENODATA; ],
+ [ac_system_error_5=yes], [ac_system_error_5=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_5)
+ if test x"$ac_system_error_5" = x"yes"; then
+ AC_DEFINE(HAVE_ENODATA, 1, [Define if ENODATA exists.])
+ fi
+
+ AC_MSG_CHECKING([for ENOSR])
+ AC_CACHE_VAL(ac_system_error_6, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = ENOSR; ],
+ [ac_system_error_6=yes], [ac_system_error_6=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_6)
+ if test x"$ac_system_error_6" = x"yes"; then
+ AC_DEFINE(HAVE_ENOSR, 1, [Define if ENOSR exists.])
+ fi
+
+ AC_MSG_CHECKING([for ENOSTR])
+ AC_CACHE_VAL(ac_system_error_7, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = ENOSTR; ],
+ [ac_system_error_7=yes], [ac_system_error_7=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_7)
+ if test x"$ac_system_error_7" = x"yes"; then
+ AC_DEFINE(HAVE_ENOSTR, 1, [Define if ENOSTR exists.])
+ fi
+
+ AC_MSG_CHECKING([for ETIME])
+ AC_CACHE_VAL(ac_system_error_8, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = ETIME; ],
+ [ac_system_error_8=yes], [ac_system_error_8=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_8)
+ if test x"$ac_system_error_8" = x"yes"; then
+ AC_DEFINE(HAVE_ETIME, 1, [Define if ETIME exists.])
+ fi
+
+ AC_MSG_CHECKING([for sys_nerr])
+ AC_CACHE_VAL(ac_system_error9, [
+ AC_TRY_COMPILE([#include <errno.h> ], [ int i = sys_nerr; ],
+ [ac_system_error9=yes], [ac_system_error9=no])
+ ])
+ AC_MSG_RESULT($ac_system_error9)
+ if test x"$ac_system_error9" = x"yes"; then
+ AC_DEFINE(HAVE_SYS_NERR, 1, [Define if sys_nerr exists.])
+ fi
+
+ AC_MSG_CHECKING([for EBADMSG])
+ AC_CACHE_VAL(ac_system_error_10, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = EBADMSG; ],
+ [ac_system_error_10=yes], [ac_system_error_10=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_10)
+ if test x"$ac_system_error_10" = x"yes"; then
+ AC_DEFINE(HAVE_EBADMSG, 1, [Define if EBADMSG exists.])
+ fi
+
+ AC_MSG_CHECKING([for ECANCELED])
+ AC_CACHE_VAL(ac_system_error_11, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = ECANCELED; ],
+ [ac_system_error_11=yes], [ac_system_error_11=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_11)
+ if test x"$ac_system_error_11" = x"yes"; then
+ AC_DEFINE(HAVE_ECANCELED, 1, [Define if ECANCELED exists.])
+ fi
+
+ AC_MSG_CHECKING([for EOVERFLOW])
+ AC_CACHE_VAL(ac_system_error_12, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = EOVERFLOW; ],
+ [ac_system_error_12=yes], [ac_system_error_12=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_12)
+ if test x"$ac_system_error_12" = x"yes"; then
+ AC_DEFINE(HAVE_EOVERFLOW, 1, [Define if EOVERFLOW exists.])
+ fi
+
+ AC_MSG_CHECKING([for ENOTSUP])
+ AC_CACHE_VAL(ac_system_error_13, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = ENOTSUP; ],
+ [ac_system_error_13=yes], [ac_system_error_13=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_13)
+ if test x"$ac_system_error_13" = x"yes"; then
+ AC_DEFINE(HAVE_ENOTSUP, 1, [Define if ENOTSUP exists.])
+ fi
+
+ AC_MSG_CHECKING([for EIDRM])
+ AC_CACHE_VAL(ac_system_error_14, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = EIDRM; ],
+ [ac_system_error_14=yes], [ac_system_error_14=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_14)
+ if test x"$ac_system_error_14" = x"yes"; then
+ AC_DEFINE(HAVE_EIDRM, 1, [Define if EIDRM exists.])
+ fi
+
+ AC_MSG_CHECKING([for ETXTBSY])
+ AC_CACHE_VAL(ac_system_error_15, [
+ AC_TRY_COMPILE([#include <errno.h>], [ int i = ETXTBSY; ],
+ [ac_system_error_15=yes], [ac_system_error_15=no])
+ ])
+ AC_MSG_RESULT($ac_system_error_15)
+ if test x"$ac_system_error_15" = x"yes"; then
+ AC_DEFINE(HAVE_ETXTBSY, 1, [Define if ETXTBSY exists.])
+ fi
+])
+
+dnl
+dnl Check whether C++200x's standard layout types are supported.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_STANDARD_LAYOUT], [
+
+ AC_MSG_CHECKING([for ISO C++200x standard layout type support])
+ AC_CACHE_VAL(ac_standard_layout, [
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_test_CXXFLAGS="${CXXFLAGS+set}"
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS='-std=gnu++0x'
+
+ AC_TRY_COMPILE([struct b
+ {
+ bool t;
+
+ // Need standard layout relaxation from POD
+ private:
+ b& operator=(const b&);
+ b(const b&);
+ };
+
+ int main()
+ {
+ b tst1 = { false };
+ return 0;
+ }],,
+ [ac_standard_layout=yes], [ac_standard_layout=no])
+
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+ ])
+ AC_MSG_RESULT($ac_standard_layout)
+ if test x"$ac_standard_layout" = x"yes"; then
+ AC_DEFINE(_GLIBCXX_USE_STANDARD_LAYOUT, 1,
+ [Define if standard layout types are supported in C++200x.])
+ fi
+])
+
+dnl
dnl Check for what type of C headers to use.
dnl
dnl --enable-cheaders= [does stuff].
#endif
], enable_clocale_flag=gnu, enable_clocale_flag=generic)
- # Test for bugs early in glibc-2.2.x series
- AC_TRY_RUN([
- #define _GNU_SOURCE 1
- #include <locale.h>
- #include <string.h>
- #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
- extern __typeof(newlocale) __newlocale;
- extern __typeof(duplocale) __duplocale;
- extern __typeof(strcoll_l) __strcoll_l;
- #endif
- int main()
- {
- const char __one[] = "Äuglein Augmen";
+ if test $enable_clocale = auto; then
+ # Test for bugs early in glibc-2.2.x series
+ AC_TRY_RUN([
+ #define _GNU_SOURCE 1
+ #include <locale.h>
+ #include <string.h>
+ #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+ extern __typeof(newlocale) __newlocale;
+ extern __typeof(duplocale) __duplocale;
+ extern __typeof(strcoll_l) __strcoll_l;
+ #endif
+ int main()
+ {
+ const char __one[] = "Äuglein Augmen";
const char __two[] = "Äuglein";
- int i;
+ int i;
int j;
__locale_t loc;
__locale_t loc_dup;
i = __strcoll_l(__one, __two, loc);
j = __strcoll_l(__one, __two, loc_dup);
return 0;
- }
- ],
- [enable_clocale_flag=gnu],[enable_clocale_flag=generic],
- [enable_clocale_flag=generic])
+ }
+ ],
+ [enable_clocale_flag=gnu],[enable_clocale_flag=generic],
+ [enable_clocale_flag=generic])
+ fi
# Set it to scream when it hurts.
ac_save_CFLAGS="$CFLAGS"
fi
])
+dnl
+dnl Check for parallel mode pre-requisites, including OpenMP support.
+dnl
+dnl + Usage: GLIBCXX_ENABLE_PARALLEL
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_PARALLEL], [
+
+ # NB: libstdc++ may be configured before libgomp: can't check for the actual
+ # dependencies (omp.h and libgomp).
+ enable_parallel=no;
+ if test -f $glibcxx_builddir/../libgomp/omp.h; then
+ enable_parallel=yes;
+ else
+ AC_MSG_NOTICE([$glibcxx_builddir/../libgomp/omp.h not found])
+ fi
+
+ # Check to see if it's explicitly disabled.
+# GLIBCXX_ENABLE(libgomp,$1,,[enable code depending on libgomp],
+# [permit yes|no])
+
+# if test x$enable_libgomp = xno; then
+# enable_parallel=no
+# fi
+
+ AC_MSG_CHECKING([for parallel mode support])
+ AC_MSG_RESULT([$enable_parallel])
+ GLIBCXX_CONDITIONAL(ENABLE_PARALLEL, test $enable_parallel = yes)
+])
+
dnl
dnl Check for which I/O library to use: stdio, or something specific.
GLIBCXX_CONDITIONAL(GLIBCXX_BUILD_PCH, test $enable_libstdcxx_pch = yes)
if test $enable_libstdcxx_pch = yes; then
- glibcxx_PCHFLAGS="-include bits/stdtr1c++.h"
+ glibcxx_PCHFLAGS="-include bits/stdc++.h"
else
glibcxx_PCHFLAGS=""
fi
AC_MSG_WARN([=== you are not using the GNU linker.])
AC_MSG_WARN([=== Symbol versioning will be disabled.])
enable_symvers=no
+ elif test $glibcxx_ld_is_gold = yes ; then
+ : All versions of gold support symbol versioning.
elif test $glibcxx_gnu_ld_version -lt $glibcxx_min_gnu_ld_version ; then
# The right tools, the right setup, but too old. Fallbacks?
AC_MSG_WARN(=== Linker version $glibcxx_gnu_ld_version is too old for)
# be used in projects which are not available under the GNU Public License
# but which still want to provide support for the GNU gettext functionality.
# Please note that the actual code is *not* freely available.
-
-# serial 1
AC_DEFUN([AC_LC_MESSAGES], [
AC_CHECK_HEADER(locale.h, [
AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES,
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