-
dnl
dnl GLIBCXX_CONDITIONAL (NAME, SHELL-TEST)
dnl
dnl Substs:
dnl glibcxx_builddir (absolute path)
dnl glibcxx_srcdir (absolute path)
+dnl toplevel_builddir (absolute path)
dnl toplevel_srcdir (absolute path)
dnl with_cross_host
dnl with_newlib
# 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 doc po testsuite])
+ m4_define([glibcxx_SUBDIRS],[include libsupc++ python src src/c++98 src/c++11 doc po testsuite])
SUBDIRS='glibcxx_SUBDIRS'
# These need to be absolute paths, yet at the same time need to
[\\/$]* | ?:[\\/]*) glibcxx_srcdir=${srcdir} ;;
*) glibcxx_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;;
esac
+ toplevel_builddir=${glibcxx_builddir}/..
toplevel_srcdir=${glibcxx_srcdir}/..
AC_SUBST(glibcxx_builddir)
AC_SUBST(glibcxx_srcdir)
+ AC_SUBST(toplevel_builddir)
AC_SUBST(toplevel_srcdir)
# We use these options to decide which functions to include. They are
# set from the top level.
AC_ARG_WITH([target-subdir],
AC_HELP_STRING([--with-target-subdir=SUBDIR],
- [configuring in a subdirectory]))
+ [configuring in a subdirectory]))
AC_ARG_WITH([cross-host],
AC_HELP_STRING([--with-cross-host=HOST],
- [configuring with a cross compiler]))
+ [configuring with a cross compiler]))
AC_ARG_WITH([newlib],
AC_HELP_STRING([--with-newlib],
- [assume newlib as a system C library]))
-
- # We're almost certainly being configured before anything else which uses
- # C++, so all of our AC_PROG_* discoveries will be cached. It's vital that
- # we not cache the value of CXX that we "discover" here, because it's set
- # to something unique for us and libjava. Other target libraries need to
- # find CXX for themselves. We yank the rug out from under the normal AC_*
- # process by sneakily renaming the cache variable. This also lets us debug
- # the value of "our" CXX in postmortems.
- #
- # We must also force CXX to /not/ be a precious variable, otherwise the
- # wrong (non-multilib-adjusted) value will be used in multilibs. This
- # little trick also affects CPPFLAGS, CXXFLAGS, and LDFLAGS. And as a side
- # effect, CXXFLAGS is no longer automagically subst'd, so we have to do
- # that ourselves. Un-preciousing AC_PROG_CC also affects CC and CFLAGS.
- #
- # -fno-builtin must be present here so that a non-conflicting form of
- # std::exit can be guessed by AC_PROG_CXX, and used in later tests.
-
- m4_define([ac_cv_prog_CXX],[glibcxx_cv_prog_CXX])
- m4_rename([_AC_ARG_VAR_PRECIOUS],[glibcxx_PRECIOUS])
- m4_define([_AC_ARG_VAR_PRECIOUS],[])
- save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS -fno-builtin"
- AC_PROG_CC
- AC_PROG_CXX
- CXXFLAGS="$save_CXXFLAGS"
- m4_rename([glibcxx_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
- AC_SUBST(CFLAGS)
- AC_SUBST(CXXFLAGS)
+ [assume newlib as a system C library]))
# Will set LN_S to either 'ln -s', 'ln', or 'cp -p' (if linking isn't
# available). Uncomment the next line to force a particular method.
# which are themselves conditionally expanded.
## (Right now, this only matters for enable_wchar_t, but nothing prevents
## other macros from doing the same. This should be automated.) -pme
- need_libmath=no
- # Check for uClibc since Linux platforms use different configuration
- # directories depending on the C library in use.
+ # Check for C library flavor since GNU/Linux platforms use different
+ # configuration directories depending on the C library in use.
AC_EGREP_CPP([_using_uclibc], [
#include <stdio.h>
#if __UCLIBC__
#endif
], uclibc=yes, uclibc=no)
+ AC_EGREP_CPP([_using_bionic], [
+ #include <stdio.h>
+ #if __BIONIC__
+ _using_bionic
+ #endif
+ ], bionic=yes, bionic=no)
+
# Find platform-specific directories containing configuration info.
# Also possibly modify flags used elsewhere, as needed by the platform.
GLIBCXX_CHECK_HOST
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 \(go\)\{0,1\}ld \(version \)\{0,1\}\(([^)]*) \)\{0,1\}\([0-9.][0-9.]*\).*/\4/'`
+ ldver=`$LD --version 2>/dev/null |
+ sed -e 's/GNU gold /GNU ld /;s/GNU ld version /GNU ld /;s/GNU ld ([^)]*) /GNU ld /;s/GNU ld \([0-9.][0-9.]*\).*/\1/; q'`
changequote([,])
glibcxx_gnu_ld_version=`echo $ldver | \
- $AWK -F. '{ if (NF<3) [$]3=0; print ([$]1*100+[$]2)*100+[$]3 }'`
+ $AWK -F. '{ if (NF<3) [$]3=0; print ([$]1*100+[$]2)*100+[$]3 }'`
AC_MSG_RESULT($glibcxx_gnu_ld_version)
fi
fi
else
glibcxx_gcsections_min_ld=21602
- if test x"$with_gnu_ld" = x"yes" &&
+ if test x"$with_gnu_ld" = x"yes" &&
test $glibcxx_gnu_ld_version -gt $glibcxx_gcsections_min_ld ; then
glibcxx_have_gc_sections=yes
fi
dnl Used only in testsuite_hooks.h. Called from GLIBCXX_CONFIGURE_TESTSUITE.
dnl
dnl Defines:
-dnl _GLIBCXX_RES_LIMITS if we can set artificial resource limits
+dnl _GLIBCXX_RES_LIMITS if we can set artificial resource limits
dnl various HAVE_LIMIT_* for individual limit names
dnl
AC_DEFUN([GLIBCXX_CHECK_SETRLIMIT_ancilliary], [
[ int f = RLIMIT_$1 ; ],
[glibcxx_mresult=1], [glibcxx_mresult=0])
AC_DEFINE_UNQUOTED(HAVE_LIMIT_$1, $glibcxx_mresult,
- [Only used in build directory testsuite_hooks.h.])
+ [Only used in build directory testsuite_hooks.h.])
if test $glibcxx_mresult = 1 ; then res=yes ; else res=no ; fi
AC_MSG_RESULT($res)
])
AC_DEFUN([GLIBCXX_CHECK_SETRLIMIT], [
setrlimit_have_headers=yes
AC_CHECK_HEADERS(unistd.h sys/time.h sys/resource.h,
- [],
- [setrlimit_have_headers=no])
+ [],
+ [setrlimit_have_headers=no])
# If don't have the headers, then we can't run the tests now, and we
# won't be seeing any of these during testsuite compilation.
if test $setrlimit_have_headers = yes; then
# Check for rlimit, setrlimit.
AC_CACHE_VAL(glibcxx_cv_setrlimit, [
AC_TRY_COMPILE(
- [#include <unistd.h>
- #include <sys/time.h>
- #include <sys/resource.h>
- ],
- [struct rlimit r;
- setrlimit(0, &r);],
- [glibcxx_cv_setrlimit=yes], [glibcxx_cv_setrlimit=no])
+ [#include <unistd.h>
+ #include <sys/time.h>
+ #include <sys/resource.h>
+ ],
+ [struct rlimit r;
+ setrlimit(0, &r);],
+ [glibcxx_cv_setrlimit=yes], [glibcxx_cv_setrlimit=no])
])
fi
if test $setrlimit_have_headers = yes && test $glibcxx_cv_setrlimit = yes; then
ac_res_limits=yes
AC_DEFINE(_GLIBCXX_RES_LIMITS, 1,
- [Define if using setrlimit to set resource limits during
- "make check"])
+ [Define if using setrlimit to set resource limits during
+ "make check"])
else
ac_res_limits=no
fi
])
res=no
if test $glibcxx_cv_S_ISREG = yes; then
- AC_DEFINE(HAVE_S_ISREG, 1,
- [Define if S_IFREG is available in <sys/stat.h>.])
+ AC_DEFINE(HAVE_S_ISREG, 1,
+ [Define if S_IFREG is available in <sys/stat.h>.])
res=S_ISREG
elif test $glibcxx_cv_S_IFREG = yes; then
AC_DEFINE(HAVE_S_IFREG, 1,
- [Define if S_IFREG is available in <sys/stat.h>.])
+ [Define if S_IFREG is available in <sys/stat.h>.])
res=S_IFREG
fi
AC_MSG_RESULT($res)
AC_MSG_CHECKING([for int64_t as long])
AC_CACHE_VAL(glibcxx_cv_int64_t_long, [
AC_TRY_COMPILE(
- [#include <stdint.h>
- template<typename, typename> struct same { enum { value = -1 }; };
- template<typename Tp> struct same<Tp, Tp> { enum { value = 1 }; };
- int array[same<int64_t, long>::value];], [],
+ [#include <stdint.h>
+ template<typename, typename> struct same { enum { value = -1 }; };
+ template<typename Tp> struct same<Tp, Tp> { enum { value = 1 }; };
+ int array[same<int64_t, long>::value];], [],
[glibcxx_cv_int64_t_long=yes], [glibcxx_cv_int64_t_long=no])
])
AC_MSG_CHECKING([for int64_t as long long])
AC_CACHE_VAL(glibcxx_cv_int64_t_long_long, [
AC_TRY_COMPILE(
- [#include <stdint.h>
- template<typename, typename> struct same { enum { value = -1 }; };
- template<typename Tp> struct same<Tp, Tp> { enum { value = 1 }; };
- int array[same<int64_t, long long>::value];], [],
+ [#include <stdint.h>
+ template<typename, typename> struct same { enum { value = -1 }; };
+ template<typename Tp> struct same<Tp, Tp> { enum { value = 1 }; };
+ int array[same<int64_t, long long>::value];], [],
[glibcxx_cv_int64_t_long_long=yes], [glibcxx_cv_int64_t_long_long=no])
])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS -fno-exceptions"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
AC_MSG_CHECKING([for LFS support])
AC_CACHE_VAL(glibcxx_cv_LFS, [
GCC_TRY_COMPILE_OR_LINK(
dnl memory (mostly useful together with shared memory allocators, see PR
dnl libstdc++/16612 for details).
dnl
-dnl --enable-fully-dynamic-string defines _GLIBCXX_FULLY_DYNAMIC_STRING
-dnl --disable-fully-dynamic-string leaves _GLIBCXX_FULLY_DYNAMIC_STRING undefined
+dnl --enable-fully-dynamic-string defines _GLIBCXX_FULLY_DYNAMIC_STRING to 1
+dnl --disable-fully-dynamic-string defines _GLIBCXX_FULLY_DYNAMIC_STRING to 0
+dnl otherwise undefined
dnl + Usage: GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING[(DEFAULT)]
dnl Where DEFAULT is either `yes' or `no'.
dnl
AC_DEFUN([GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING], [
GLIBCXX_ENABLE(fully-dynamic-string,$1,,[do not put empty strings in per-process static memory])
if test $enable_fully_dynamic_string = yes; then
- AC_DEFINE(_GLIBCXX_FULLY_DYNAMIC_STRING, 1,
- [Define if a fully dynamic basic_string is wanted.])
+ enable_fully_dynamic_string_def=1
+ else
+ enable_fully_dynamic_string_def=0
fi
+ AC_DEFINE_UNQUOTED([_GLIBCXX_FULLY_DYNAMIC_STRING], [${enable_fully_dynamic_string_def}],
+ [Define to 1 if a fully dynamic basic_string is wanted, 0 to disable, undefined for platform defaults])
])
dnl GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE must be done before this.
dnl
dnl Sets:
-dnl enable_abi_check
+dnl enable_abi_check
dnl GLIBCXX_TEST_WCHAR_T
dnl GLIBCXX_TEST_THREAD
dnl Substs:
dnl baseline_dir
+dnl baseline_subdir_switch
dnl
AC_DEFUN([GLIBCXX_CONFIGURE_TESTSUITE], [
if $GLIBCXX_IS_NATIVE ; then
test $enable_symvers != no; then
case "$host" in
*-*-cygwin*)
- enable_abi_check=no ;;
+ enable_abi_check=no ;;
*)
- enable_abi_check=yes ;;
+ enable_abi_check=yes ;;
esac
else
# Only build this as native, since automake does not understand
# CXX_FOR_BUILD.
enable_abi_check=no
fi
-
+
# Export file names for ABI checking.
- baseline_dir="$glibcxx_srcdir/config/abi/post/${abi_baseline_pair}\$(MULTISUBDIR)"
+ baseline_dir="$glibcxx_srcdir/config/abi/post/${abi_baseline_pair}"
AC_SUBST(baseline_dir)
+ baseline_subdir_switch="$abi_baseline_subdir_switch"
+ AC_SUBST(baseline_subdir_switch)
+])
+
+
+dnl
+dnl Does any necessary configuration for docbook in the docs directory.
+dnl
+dnl XSLTPROC must be set before this
+dnl
+dnl Sets:
+dnl glibcxx_stylesheets
+dnl Substs:
+dnl XSL_STYLE_DIR
+dnl
+AC_DEFUN([GLIBCXX_CONFIGURE_DOCBOOK], [
+
+AC_MSG_CHECKING([for docbook stylesheets for documentation creation])
+glibcxx_stylesheets=no
+if test x${XSLTPROC} = xyes && echo '<title/>' | xsltproc --noout --nonet --xinclude http://docbook.sourceforge.net/release/xsl-ns/current/xhtml-1_1/docbook.xsl - 2>/dev/null; then
+ glibcxx_stylesheets=yes
+fi
+AC_MSG_RESULT($glibcxx_stylesheets)
+
+AC_MSG_CHECKING([for local stylesheet directory])
+glibcxx_local_stylesheets=no
+if test x"$glibcxx_stylesheets" = x"yes"; then
+ if test -d /usr/share/sgml/docbook/xsl-ns-stylesheets; then
+ glibcxx_local_stylesheets=yes
+ XSL_STYLE_DIR=/usr/share/sgml/docbook/xsl-ns-stylesheets
+ fi
+ if test -d /usr/share/xml/docbook/stylesheet/docbook-xsl-ns; then
+ glibcxx_local_stylesheets=yes
+ XSL_STYLE_DIR=/usr/share/xml/docbook/stylesheet/docbook-xsl-ns
+ fi
+fi
+AC_MSG_RESULT($glibcxx_local_stylesheets)
+
+if test x"$glibcxx_local_stylesheets" = x"yes"; then
+ AC_SUBST(XSL_STYLE_DIR)
+ AC_MSG_NOTICE($XSL_STYLE_DIR)
+else
+ glibcxx_stylesheets=no
+fi
+
+# Check for epub3 dependencies.
+AC_MSG_CHECKING([for epub3 stylesheets for documentation creation])
+glibcxx_epub_stylesheets=no
+if test x"$glibcxx_local_stylesheets" = x"yes"; then
+ if test -f "$XSL_STYLE_DIR/epub3/chunk.xsl"; then
+ glibcxx_epub_stylesheets=yes
+ fi
+fi
+AC_MSG_RESULT($glibcxx_epub_stylesheets)
+AM_CONDITIONAL(BUILD_EPUB, test x"$glibcxx_epub_stylesheets" = x"yes")
+
])
fi
# Stuff in the actual top level. Currently only used by libsupc++ to
- # get unwind* headers from the gcc dir.
- #TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/gcc -I$(toplevel_srcdir)/include'
- TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/gcc'
+ # get unwind* headers from the libgcc dir.
+ #TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/libgcc -I$(toplevel_srcdir)/include'
+ TOPLEVEL_INCLUDES='-I$(toplevel_srcdir)/libgcc'
# Now, export this to all the little Makefiles....
AC_SUBST(GLIBCXX_INCLUDES)
# OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
AC_SUBST(OPTIMIZE_CXXFLAGS)
- WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual'
+ WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi'
AC_SUBST(WARN_FLAGS)
])
AC_MSG_CHECKING([for gxx-include-dir])
AC_ARG_WITH([gxx-include-dir],
AC_HELP_STRING([--with-gxx-include-dir=DIR],
- [installation directory for include files]),
+ [installation directory for include files]),
[case "$withval" in
yes) AC_MSG_ERROR([Missing directory for --with-gxx-include-dir]) ;;
no) gxx_include_dir=no ;;
AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
AC_ARG_ENABLE([version-specific-runtime-libs],
AC_HELP_STRING([--enable-version-specific-runtime-libs],
- [Specify that runtime libraries should be installed in a compiler-specific directory]),
+ [Specify that runtime libraries should be installed in a compiler-specific directory]),
[case "$enableval" in
yes) version_specific_libs=yes ;;
no) version_specific_libs=no ;;
# Default case for install directory for include files.
if test $version_specific_libs = no && test $gxx_include_dir = no; then
gxx_include_dir='include/c++/${gcc_version}'
- if test -n "$with_cross_host" &&
- test x"$with_cross_host" != x"no"; then
+ if test -n "$with_cross_host" &&
+ test x"$with_cross_host" != x"no"; then
gxx_include_dir='${prefix}/${target_alias}/'"$gxx_include_dir"
else
gxx_include_dir='${prefix}/'"$gxx_include_dir"
dnl
m4_define([GLIBCXX_ENABLE],[dnl
m4_define([_g_switch],[--enable-$1])dnl
-m4_define([_g_help],[AC_HELP_STRING(_g_switch$3,[$4 @<:@default=$2@:>@])])dnl
- AC_ARG_ENABLE($1,_g_help,
+m4_define([_g_help],[AC_HELP_STRING([_g_switch$3],[$4 @<:@default=$2@:>@])])dnl
+ AC_ARG_ENABLE([$1],m4_dquote(_g_help),
m4_bmatch([$5],
[^permit ],
[[
case "$enableval" in
m4_bpatsubst([$5],[permit ])) ;;
*) AC_MSG_ERROR(Unknown argument to enable/disable $1) ;;
- dnl Idea for future: generate a URL pointing to
- dnl "onlinedocs/configopts.html#whatever"
+ dnl Idea for future: generate a URL pointing to
+ dnl "onlinedocs/configopts.html#whatever"
esac
]],
[^$],
AC_MSG_RESULT($glibcxx_cv_c99_math)
if test x"$glibcxx_cv_c99_math" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_MATH, 1,
- [Define if C99 functions or macros in <math.h> should be imported
- in <cmath> in namespace std.])
+ [Define if C99 functions or macros in <math.h> should be imported
+ in <cmath> in namespace std.])
fi
# Check for the existence of <complex.h> complex math functions.
AC_MSG_RESULT($glibcxx_cv_c99_complex)
if test x"$glibcxx_cv_c99_complex" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_COMPLEX, 1,
- [Define if C99 functions in <complex.h> should be used in
- <complex>. Using compiler builtins for these functions requires
- corresponding C99 library functions to be present.])
+ [Define if C99 functions in <complex.h> should be used in
+ <complex>. Using compiler builtins for these functions requires
+ corresponding C99 library functions to be present.])
fi
# Check for the existence in <stdio.h> of vscanf, et. al.
void foo(char* fmt, ...)
{
va_list args; va_start(args, fmt);
- vfscanf(stderr, "%i", args);
+ vfscanf(stderr, "%i", args);
vscanf("%i", args);
vsnprintf(fmt, 0, "%i", args);
vsscanf(fmt, "%i", args);
glibcxx_cv_c99_wchar=no;
if test x"$ac_has_wchar_h" = xyes &&
test x"$ac_has_wctype_h" = xyes; then
- AC_MSG_CHECKING([for ISO C99 support in <wchar.h>])
+ AC_MSG_CHECKING([for ISO C99 support in <wchar.h>])
AC_TRY_COMPILE([#include <wchar.h>
- namespace test
- {
+ namespace test
+ {
using ::wcstold;
using ::wcstoll;
using ::wcstoull;
# NB: only put functions here, instead of immediately above, if
# absolutely necessary.
AC_TRY_COMPILE([#include <wchar.h>
- namespace test { using ::vfwscanf; } ], [],
+ namespace test { using ::vfwscanf; } ], [],
[AC_DEFINE(HAVE_VFWSCANF,1,
[Defined if vfwscanf exists.])],[])
AC_TRY_COMPILE([#include <wchar.h>
- namespace test { using ::vswscanf; } ], [],
+ namespace test { using ::vswscanf; } ], [],
[AC_DEFINE(HAVE_VSWSCANF,1,
[Defined if vswscanf exists.])],[])
AC_TRY_COMPILE([#include <wchar.h>
- namespace test { using ::vwscanf; } ], [],
+ namespace test { using ::vwscanf; } ], [],
[AC_DEFINE(HAVE_VWSCANF,1,[Defined if vwscanf exists.])],[])
AC_TRY_COMPILE([#include <wchar.h>
- namespace test { using ::wcstof; } ], [],
+ namespace test { using ::wcstof; } ], [],
[AC_DEFINE(HAVE_WCSTOF,1,[Defined if wcstof exists.])],[])
AC_TRY_COMPILE([#include <wctype.h>],
- [ wint_t t; int i = iswblank(t);],
+ [ wint_t t; int i = iswblank(t);],
[AC_DEFINE(HAVE_ISWBLANK,1,
[Defined if iswblank exists.])],[])
LIBS="$ac_save_LIBS"
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
- fi
+ fi
AC_MSG_CHECKING([for fully enabled ISO C99 support])
AC_MSG_RESULT($enable_c99)
dnl
-dnl Check for clock_gettime clocks, used in the implementation of 20.8.5
-dnl [time.clock] in the current C++0x working draft.
+dnl Check for clock_gettime, nanosleep and sched_yield, used in the
+dnl implementation of 20.8.5 [time.clock], and 30.2.2 [thread.thread.this]
+dnl in the current C++0x working draft.
dnl
-dnl --enable-clock-gettime
-dnl --enable-clock-gettime=yes
-dnl checks for the availability of monotonic and realtime clocks
-dnl in libc and libposix4 and in case links the latter
-dnl --enable-clock-gettime=rt
+dnl --enable-libstdcxx-time
+dnl --enable-libstdcxx-time=yes
+dnl checks for the availability of monotonic and realtime clocks,
+dnl nanosleep and sched_yield in libc and libposix4 and, in case, links
+dnl the latter
+dnl --enable-libstdcxx-time=rt
dnl also searches (and, in case, links) librt. Note that this is
dnl not always desirable because, in glibc, for example, in turn it
dnl triggers the linking of libpthread too, which activates locking,
dnl a large overhead for single-thread programs.
-dnl --enable-clock-gettime=no
-dnl --disable-clock-gettime
+dnl --enable-libstdcxx-time=no
+dnl --disable-libstdcxx-time
dnl disables the checks completely
dnl
-AC_DEFUN([GLIBCXX_ENABLE_CLOCK_GETTIME], [
+dnl N.B. Darwin provides nanosleep but doesn't support the whole POSIX
+dnl Timers option, so doesn't define _POSIX_TIMERS. Because the test
+dnl below fails Darwin unconditionally defines _GLIBCXX_USE_NANOSLEEP in
+dnl os_defines.h and also defines _GLIBCXX_USE_SCHED_YIELD.
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_TIME], [
- AC_MSG_CHECKING([for clock_gettime clocks])
- GLIBCXX_ENABLE(clock-gettime,$1,[=KIND],
+ AC_MSG_CHECKING([for clock_gettime, nanosleep and sched_yield])
+ GLIBCXX_ENABLE(libstdcxx-time,$1,[[[=KIND]]],
[use KIND for check type],
[permit yes|no|rt])
CXXFLAGS="$CXXFLAGS -fno-exceptions"
ac_save_LIBS="$LIBS"
- ac_has_clock_monotonic=no;
- ac_has_clock_realtime=no;
+ ac_has_clock_monotonic=no
+ ac_has_clock_realtime=no
+ AC_MSG_RESULT($enable_libstdcxx_time)
- if test x"$enable_clock_gettime" != x"no"; then
+ if test x"$enable_libstdcxx_time" != x"no"; then
- if test x"$enable_clock_gettime" = x"rt"; then
+ if test x"$enable_libstdcxx_time" = x"rt"; then
AC_SEARCH_LIBS(clock_gettime, [rt posix4])
+ AC_SEARCH_LIBS(nanosleep, [rt posix4])
else
AC_SEARCH_LIBS(clock_gettime, [posix4])
+ AC_SEARCH_LIBS(nanosleep, [posix4])
fi
case "$ac_cv_search_clock_gettime" in
-l*) GLIBCXX_LIBS=$ac_cv_search_clock_gettime
+ ;;
+ esac
+ case "$ac_cv_search_nanosleep" in
+ -l*) GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_nanosleep"
+ ;;
+ esac
+
+ AC_SEARCH_LIBS(sched_yield, [rt posix4])
+
+ case "$ac_cv_search_sched_yield" in
+ -lposix4*)
+ GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_sched_yield"
+ AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1,
+ [ Defined if sched_yield is available. ])
+ ;;
+ -lrt*)
+ if test x"$enable_libstdcxx_time" = x"rt"; then
+ GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_sched_yield"
+ AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1,
+ [ Defined if sched_yield is available. ])
+ fi
+ ;;
+ *)
+ AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1,
+ [ Defined if sched_yield is available. ])
+ ;;
esac
AC_CHECK_HEADERS(unistd.h, ac_has_unistd_h=yes, ac_has_unistd_h=no)
if test x"$ac_has_unistd_h" = x"yes"; then
AC_MSG_CHECKING([for monotonic clock])
AC_TRY_LINK(
- [#include <unistd.h>
- #include <time.h>
- ],
- [#if _POSIX_TIMERS > 0 && defined(_POSIX_MONOTONIC_CLOCK)
- timespec tp;
- #endif
- clock_gettime(CLOCK_MONOTONIC, &tp);
- ], [ac_has_clock_monotonic=yes], [ac_has_clock_monotonic=no])
-
- AC_MSG_RESULT($ac_has_clock_monotonic)
-
+ [#include <unistd.h>
+ #include <time.h>
+ ],
+ [#if _POSIX_TIMERS > 0 && defined(_POSIX_MONOTONIC_CLOCK)
+ timespec tp;
+ #endif
+ clock_gettime(CLOCK_MONOTONIC, &tp);
+ ], [ac_has_clock_monotonic=yes], [ac_has_clock_monotonic=no])
+
+ AC_MSG_RESULT($ac_has_clock_monotonic)
+
AC_MSG_CHECKING([for realtime clock])
AC_TRY_LINK(
- [#include <unistd.h>
- #include <time.h>
- ],
- [#if _POSIX_TIMERS > 0
- timespec tp;
- #endif
- clock_gettime(CLOCK_REALTIME, &tp);
- ], [ac_has_clock_realtime=yes], [ac_has_clock_realtime=no])
+ [#include <unistd.h>
+ #include <time.h>
+ ],
+ [#if _POSIX_TIMERS > 0
+ timespec tp;
+ #endif
+ clock_gettime(CLOCK_REALTIME, &tp);
+ ], [ac_has_clock_realtime=yes], [ac_has_clock_realtime=no])
AC_MSG_RESULT($ac_has_clock_realtime)
- fi
+ AC_MSG_CHECKING([for nanosleep])
+ AC_TRY_LINK(
+ [#include <unistd.h>
+ #include <time.h>
+ ],
+ [#if _POSIX_TIMERS > 0
+ timespec tp;
+ #endif
+ nanosleep(&tp, 0);
+ ], [ac_has_nanosleep=yes], [ac_has_nanosleep=no])
+
+ AC_MSG_RESULT($ac_has_nanosleep)
+ fi
fi
if test x"$ac_has_clock_monotonic" = x"yes"; then
[ Defined if clock_gettime has realtime clock support. ])
fi
+ if test x"$ac_has_nanosleep" = x"yes"; then
+ AC_DEFINE(_GLIBCXX_USE_NANOSLEEP, 1,
+ [ Defined if nanosleep is available. ])
+ fi
+
AC_SUBST(GLIBCXX_LIBS)
CXXFLAGS="$ac_save_CXXFLAGS"
dnl [time.clock] in the current C++0x working draft.
dnl
AC_DEFUN([GLIBCXX_CHECK_GETTIMEOFDAY], [
-
+
AC_MSG_CHECKING([for gettimeofday])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-exceptions"
-
+
ac_has_gettimeofday=no;
AC_CHECK_HEADERS(sys/time.h, ac_has_sys_time_h=yes, ac_has_sys_time_h=no)
if test x"$ac_has_sys_time_h" = x"yes"; then
GCC_TRY_COMPILE_OR_LINK([#include <sys/time.h>],
[timeval tv; gettimeofday(&tv, 0);],
[ac_has_gettimeofday=yes], [ac_has_gettimeofday=no])
-
+
AC_MSG_RESULT($ac_has_gettimeofday)
fi
-
+
if test x"$ac_has_gettimeofday" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_GETTIMEOFDAY, 1,
[ Defined if gettimeofday is available. ])
fi
-
+
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
])
if test x"$ac_has_complex_h" = x"yes"; then
AC_MSG_CHECKING([for ISO C99 support to TR1 in <complex.h>])
AC_TRY_COMPILE([#include <complex.h>],
- [typedef __complex__ float float_type; float_type tmpf;
- cacosf(tmpf);
- casinf(tmpf);
- catanf(tmpf);
- cacoshf(tmpf);
- casinhf(tmpf);
- catanhf(tmpf);
+ [typedef __complex__ float float_type; float_type tmpf;
+ cacosf(tmpf);
+ casinf(tmpf);
+ catanf(tmpf);
+ cacoshf(tmpf);
+ casinhf(tmpf);
+ catanhf(tmpf);
typedef __complex__ double double_type; double_type tmpd;
- cacos(tmpd);
- casin(tmpd);
- catan(tmpd);
- cacosh(tmpd);
- casinh(tmpd);
- catanh(tmpd);
+ cacos(tmpd);
+ casin(tmpd);
+ catan(tmpd);
+ cacosh(tmpd);
+ casinh(tmpd);
+ catanh(tmpd);
typedef __complex__ long double ld_type; ld_type tmpld;
- cacosl(tmpld);
- casinl(tmpld);
- catanl(tmpld);
- cacoshl(tmpld);
- casinhl(tmpld);
- catanhl(tmpld);
+ cacosl(tmpld);
+ casinl(tmpld);
+ catanl(tmpld);
+ cacoshl(tmpld);
+ casinhl(tmpld);
+ catanhl(tmpld);
],[ac_c99_complex_tr1=yes], [ac_c99_complex_tr1=no])
fi
AC_MSG_RESULT($ac_c99_complex_tr1)
if test x"$ac_c99_complex_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_COMPLEX_TR1, 1,
- [Define if C99 functions in <complex.h> should be used in
- <tr1/complex>. Using compiler builtins for these functions
+ [Define if C99 functions in <complex.h> should be used in
+ <tr1/complex>. Using compiler builtins for these functions
requires corresponding C99 library functions to be present.])
fi
AC_MSG_CHECKING([for ISO C99 support to TR1 in <ctype.h>])
AC_CACHE_VAL(glibcxx_cv_c99_ctype_tr1, [
AC_TRY_COMPILE([#include <ctype.h>],
- [int ch;
- int ret;
- ret = isblank(ch);
+ [int ch;
+ int ret;
+ ret = isblank(ch);
],[glibcxx_cv_c99_ctype_tr1=yes],
[glibcxx_cv_c99_ctype_tr1=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_ctype_tr1)
if test x"$glibcxx_cv_c99_ctype_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_CTYPE_TR1, 1,
- [Define if C99 functions in <ctype.h> should be imported in
+ [Define if C99 functions in <ctype.h> should be imported in
<tr1/cctype> in namespace std::tr1.])
fi
if test x"$ac_has_fenv_h" = x"yes"; then
AC_MSG_CHECKING([for ISO C99 support to TR1 in <fenv.h>])
AC_TRY_COMPILE([#include <fenv.h>],
- [int except, mode;
- fexcept_t* pflag;
- fenv_t* penv;
- int ret;
- ret = feclearexcept(except);
- ret = fegetexceptflag(pflag, except);
- ret = feraiseexcept(except);
- ret = fesetexceptflag(pflag, except);
- ret = fetestexcept(except);
- ret = fegetround();
- ret = fesetround(mode);
- ret = fegetenv(penv);
- ret = feholdexcept(penv);
- ret = fesetenv(penv);
- ret = feupdateenv(penv);
+ [int except, mode;
+ fexcept_t* pflag;
+ fenv_t* penv;
+ int ret;
+ ret = feclearexcept(except);
+ ret = fegetexceptflag(pflag, except);
+ ret = feraiseexcept(except);
+ ret = fesetexceptflag(pflag, except);
+ ret = fetestexcept(except);
+ ret = fegetround();
+ ret = fesetround(mode);
+ ret = fegetenv(penv);
+ ret = feholdexcept(penv);
+ ret = fesetenv(penv);
+ ret = feupdateenv(penv);
],[ac_c99_fenv_tr1=yes], [ac_c99_fenv_tr1=no])
fi
AC_MSG_RESULT($ac_c99_fenv_tr1)
if test x"$ac_c99_fenv_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_FENV_TR1, 1,
- [Define if C99 functions in <fenv.h> should be imported in
+ [Define if C99 functions in <fenv.h> should be imported in
<tr1/cfenv> in namespace std::tr1.])
fi
AC_MSG_CHECKING([for ISO C99 support to TR1 in <stdint.h>])
AC_CACHE_VAL(glibcxx_cv_c99_stdint_tr1, [
AC_TRY_COMPILE([#define __STDC_LIMIT_MACROS
- #define __STDC_CONSTANT_MACROS
- #include <stdint.h>],
- [typedef int8_t my_int8_t;
+ #define __STDC_CONSTANT_MACROS
+ #include <stdint.h>],
+ [typedef int8_t my_int8_t;
my_int8_t i8 = INT8_MIN;
i8 = INT8_MAX;
- typedef int16_t my_int16_t;
+ typedef int16_t my_int16_t;
my_int16_t i16 = INT16_MIN;
i16 = INT16_MAX;
- typedef int32_t my_int32_t;
+ typedef int32_t my_int32_t;
my_int32_t i32 = INT32_MIN;
i32 = INT32_MAX;
- typedef int64_t my_int64_t;
+ typedef int64_t my_int64_t;
my_int64_t i64 = INT64_MIN;
i64 = INT64_MAX;
- typedef int_fast8_t my_int_fast8_t;
+ typedef int_fast8_t my_int_fast8_t;
my_int_fast8_t if8 = INT_FAST8_MIN;
if8 = INT_FAST8_MAX;
- typedef int_fast16_t my_int_fast16_t;
+ typedef int_fast16_t my_int_fast16_t;
my_int_fast16_t if16 = INT_FAST16_MIN;
if16 = INT_FAST16_MAX;
- typedef int_fast32_t my_int_fast32_t;
+ typedef int_fast32_t my_int_fast32_t;
my_int_fast32_t if32 = INT_FAST32_MIN;
if32 = INT_FAST32_MAX;
- typedef int_fast64_t my_int_fast64_t;
+ typedef int_fast64_t my_int_fast64_t;
my_int_fast64_t if64 = INT_FAST64_MIN;
if64 = INT_FAST64_MAX;
- typedef int_least8_t my_int_least8_t;
+ typedef int_least8_t my_int_least8_t;
my_int_least8_t il8 = INT_LEAST8_MIN;
il8 = INT_LEAST8_MAX;
- typedef int_least16_t my_int_least16_t;
+ typedef int_least16_t my_int_least16_t;
my_int_least16_t il16 = INT_LEAST16_MIN;
il16 = INT_LEAST16_MAX;
- typedef int_least32_t my_int_least32_t;
+ typedef int_least32_t my_int_least32_t;
my_int_least32_t il32 = INT_LEAST32_MIN;
il32 = INT_LEAST32_MAX;
- typedef int_least64_t my_int_least64_t;
+ typedef int_least64_t my_int_least64_t;
my_int_least64_t il64 = INT_LEAST64_MIN;
il64 = INT_LEAST64_MAX;
typedef intmax_t my_intmax_t;
typedef intptr_t my_intptr_t;
my_intptr_t ip = INTPTR_MAX;
ip = INTPTR_MIN;
- typedef uint8_t my_uint8_t;
+ typedef uint8_t my_uint8_t;
my_uint8_t ui8 = UINT8_MAX;
ui8 = UINT8_MAX;
- typedef uint16_t my_uint16_t;
+ typedef uint16_t my_uint16_t;
my_uint16_t ui16 = UINT16_MAX;
ui16 = UINT16_MAX;
- typedef uint32_t my_uint32_t;
+ typedef uint32_t my_uint32_t;
my_uint32_t ui32 = UINT32_MAX;
ui32 = UINT32_MAX;
- typedef uint64_t my_uint64_t;
+ typedef uint64_t my_uint64_t;
my_uint64_t ui64 = UINT64_MAX;
ui64 = UINT64_MAX;
- typedef uint_fast8_t my_uint_fast8_t;
+ typedef uint_fast8_t my_uint_fast8_t;
my_uint_fast8_t uif8 = UINT_FAST8_MAX;
uif8 = UINT_FAST8_MAX;
- typedef uint_fast16_t my_uint_fast16_t;
+ typedef uint_fast16_t my_uint_fast16_t;
my_uint_fast16_t uif16 = UINT_FAST16_MAX;
uif16 = UINT_FAST16_MAX;
- typedef uint_fast32_t my_uint_fast32_t;
+ typedef uint_fast32_t my_uint_fast32_t;
my_uint_fast32_t uif32 = UINT_FAST32_MAX;
uif32 = UINT_FAST32_MAX;
- typedef uint_fast64_t my_uint_fast64_t;
+ typedef uint_fast64_t my_uint_fast64_t;
my_uint_fast64_t uif64 = UINT_FAST64_MAX;
uif64 = UINT_FAST64_MAX;
- typedef uint_least8_t my_uint_least8_t;
+ typedef uint_least8_t my_uint_least8_t;
my_uint_least8_t uil8 = UINT_LEAST8_MAX;
uil8 = UINT_LEAST8_MAX;
- typedef uint_least16_t my_uint_least16_t;
+ typedef uint_least16_t my_uint_least16_t;
my_uint_least16_t uil16 = UINT_LEAST16_MAX;
uil16 = UINT_LEAST16_MAX;
- typedef uint_least32_t my_uint_least32_t;
+ typedef uint_least32_t my_uint_least32_t;
my_uint_least32_t uil32 = UINT_LEAST32_MAX;
uil32 = UINT_LEAST32_MAX;
- typedef uint_least64_t my_uint_least64_t;
+ typedef uint_least64_t my_uint_least64_t;
my_uint_least64_t uil64 = UINT_LEAST64_MAX;
uil64 = UINT_LEAST64_MAX;
typedef uintmax_t my_uintmax_t;
AC_MSG_RESULT($glibcxx_cv_c99_stdint_tr1)
if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_STDINT_TR1, 1,
- [Define if C99 types in <stdint.h> should be imported in
+ [Define if C99 types in <stdint.h> should be imported in
<tr1/cstdint> in namespace std::tr1.])
fi
AC_MSG_CHECKING([for ISO C99 support to TR1 in <math.h>])
AC_CACHE_VAL(glibcxx_cv_c99_math_tr1, [
AC_TRY_COMPILE([#include <math.h>],
- [typedef double_t my_double_t;
- typedef float_t my_float_t;
- acosh(0.0);
- acoshf(0.0f);
- acoshl(0.0l);
- asinh(0.0);
- asinhf(0.0f);
- asinhl(0.0l);
- atanh(0.0);
- atanhf(0.0f);
- atanhl(0.0l);
- cbrt(0.0);
- cbrtf(0.0f);
- cbrtl(0.0l);
- copysign(0.0, 0.0);
- copysignf(0.0f, 0.0f);
- copysignl(0.0l, 0.0l);
- erf(0.0);
- erff(0.0f);
- erfl(0.0l);
- erfc(0.0);
- erfcf(0.0f);
- erfcl(0.0l);
- exp2(0.0);
- exp2f(0.0f);
- exp2l(0.0l);
- expm1(0.0);
- expm1f(0.0f);
- expm1l(0.0l);
- fdim(0.0, 0.0);
- fdimf(0.0f, 0.0f);
- fdiml(0.0l, 0.0l);
- fma(0.0, 0.0, 0.0);
- fmaf(0.0f, 0.0f, 0.0f);
- fmal(0.0l, 0.0l, 0.0l);
- fmax(0.0, 0.0);
- fmaxf(0.0f, 0.0f);
- fmaxl(0.0l, 0.0l);
- fmin(0.0, 0.0);
- fminf(0.0f, 0.0f);
- fminl(0.0l, 0.0l);
- hypot(0.0, 0.0);
- hypotf(0.0f, 0.0f);
- hypotl(0.0l, 0.0l);
- ilogb(0.0);
- ilogbf(0.0f);
- ilogbl(0.0l);
- lgamma(0.0);
- lgammaf(0.0f);
- lgammal(0.0l);
- llrint(0.0);
- llrintf(0.0f);
- llrintl(0.0l);
- llround(0.0);
- llroundf(0.0f);
- llroundl(0.0l);
- log1p(0.0);
- log1pf(0.0f);
- log1pl(0.0l);
- log2(0.0);
- log2f(0.0f);
- log2l(0.0l);
- logb(0.0);
- logbf(0.0f);
- logbl(0.0l);
- lrint(0.0);
- lrintf(0.0f);
- lrintl(0.0l);
- lround(0.0);
- lroundf(0.0f);
- lroundl(0.0l);
- nan(0);
- nanf(0);
- nanl(0);
- nearbyint(0.0);
- nearbyintf(0.0f);
- nearbyintl(0.0l);
- nextafter(0.0, 0.0);
- nextafterf(0.0f, 0.0f);
- nextafterl(0.0l, 0.0l);
- nexttoward(0.0, 0.0);
- nexttowardf(0.0f, 0.0f);
- nexttowardl(0.0l, 0.0l);
- remainder(0.0, 0.0);
- remainderf(0.0f, 0.0f);
- remainderl(0.0l, 0.0l);
- remquo(0.0, 0.0, 0);
- remquo(0.0f, 0.0f, 0);
- remquo(0.0l, 0.0l, 0);
- rint(0.0);
- rintf(0.0f);
- rintl(0.0l);
- round(0.0);
- roundf(0.0f);
- roundl(0.0l);
- scalbln(0.0, 0l);
- scalblnf(0.0f, 0l);
- scalblnl(0.0l, 0l);
- scalbn(0.0, 0);
- scalbnf(0.0f, 0);
- scalbnl(0.0l, 0);
- tgamma(0.0);
- tgammaf(0.0f);
- tgammal(0.0l);
- trunc(0.0);
- truncf(0.0f);
- truncl(0.0l);
+ [typedef double_t my_double_t;
+ typedef float_t my_float_t;
+ acosh(0.0);
+ acoshf(0.0f);
+ acoshl(0.0l);
+ asinh(0.0);
+ asinhf(0.0f);
+ asinhl(0.0l);
+ atanh(0.0);
+ atanhf(0.0f);
+ atanhl(0.0l);
+ cbrt(0.0);
+ cbrtf(0.0f);
+ cbrtl(0.0l);
+ copysign(0.0, 0.0);
+ copysignf(0.0f, 0.0f);
+ copysignl(0.0l, 0.0l);
+ erf(0.0);
+ erff(0.0f);
+ erfl(0.0l);
+ erfc(0.0);
+ erfcf(0.0f);
+ erfcl(0.0l);
+ exp2(0.0);
+ exp2f(0.0f);
+ exp2l(0.0l);
+ expm1(0.0);
+ expm1f(0.0f);
+ expm1l(0.0l);
+ fdim(0.0, 0.0);
+ fdimf(0.0f, 0.0f);
+ fdiml(0.0l, 0.0l);
+ fma(0.0, 0.0, 0.0);
+ fmaf(0.0f, 0.0f, 0.0f);
+ fmal(0.0l, 0.0l, 0.0l);
+ fmax(0.0, 0.0);
+ fmaxf(0.0f, 0.0f);
+ fmaxl(0.0l, 0.0l);
+ fmin(0.0, 0.0);
+ fminf(0.0f, 0.0f);
+ fminl(0.0l, 0.0l);
+ hypot(0.0, 0.0);
+ hypotf(0.0f, 0.0f);
+ hypotl(0.0l, 0.0l);
+ ilogb(0.0);
+ ilogbf(0.0f);
+ ilogbl(0.0l);
+ lgamma(0.0);
+ lgammaf(0.0f);
+ lgammal(0.0l);
+ llrint(0.0);
+ llrintf(0.0f);
+ llrintl(0.0l);
+ llround(0.0);
+ llroundf(0.0f);
+ llroundl(0.0l);
+ log1p(0.0);
+ log1pf(0.0f);
+ log1pl(0.0l);
+ log2(0.0);
+ log2f(0.0f);
+ log2l(0.0l);
+ logb(0.0);
+ logbf(0.0f);
+ logbl(0.0l);
+ lrint(0.0);
+ lrintf(0.0f);
+ lrintl(0.0l);
+ lround(0.0);
+ lroundf(0.0f);
+ lroundl(0.0l);
+ nan(0);
+ nanf(0);
+ nanl(0);
+ nearbyint(0.0);
+ nearbyintf(0.0f);
+ nearbyintl(0.0l);
+ nextafter(0.0, 0.0);
+ nextafterf(0.0f, 0.0f);
+ nextafterl(0.0l, 0.0l);
+ nexttoward(0.0, 0.0);
+ nexttowardf(0.0f, 0.0f);
+ nexttowardl(0.0l, 0.0l);
+ remainder(0.0, 0.0);
+ remainderf(0.0f, 0.0f);
+ remainderl(0.0l, 0.0l);
+ remquo(0.0, 0.0, 0);
+ remquof(0.0f, 0.0f, 0);
+ remquol(0.0l, 0.0l, 0);
+ rint(0.0);
+ rintf(0.0f);
+ rintl(0.0l);
+ round(0.0);
+ roundf(0.0f);
+ roundl(0.0l);
+ scalbln(0.0, 0l);
+ scalblnf(0.0f, 0l);
+ scalblnl(0.0l, 0l);
+ scalbn(0.0, 0);
+ scalbnf(0.0f, 0);
+ scalbnl(0.0l, 0);
+ tgamma(0.0);
+ tgammaf(0.0f);
+ tgammal(0.0l);
+ trunc(0.0);
+ truncf(0.0f);
+ truncl(0.0l);
],[glibcxx_cv_c99_math_tr1=yes], [glibcxx_cv_c99_math_tr1=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_math_tr1)
if test x"$glibcxx_cv_c99_math_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_MATH_TR1, 1,
- [Define if C99 functions or macros in <math.h> should be imported
- in <tr1/cmath> in namespace std::tr1.])
+ [Define if C99 functions or macros in <math.h> should be imported
+ in <tr1/cmath> in namespace std::tr1.])
fi
# Check for the existence of <inttypes.h> functions (NB: doesn't make
- # sense if the previous check fails, per C99, 7.8/1).
+ # sense if the glibcxx_cv_c99_stdint_tr1 check fails, per C99, 7.8/1).
ac_c99_inttypes_tr1=no;
if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then
AC_MSG_CHECKING([for ISO C99 support to TR1 in <inttypes.h>])
AC_TRY_COMPILE([#include <inttypes.h>],
- [intmax_t i, numer, denom, base;
- const char* s;
- char** endptr;
- intmax_t ret = imaxabs(i);
- imaxdiv_t dret = imaxdiv(numer, denom);
- ret = strtoimax(s, endptr, base);
- uintmax_t uret = strtoumax(s, endptr, base);
- ],[ac_c99_inttypes_tr1=yes], [ac_c99_inttypes_tr1=no])
+ [intmax_t i, numer, denom, base;
+ const char* s;
+ char** endptr;
+ intmax_t ret = imaxabs(i);
+ imaxdiv_t dret = imaxdiv(numer, denom);
+ ret = strtoimax(s, endptr, base);
+ uintmax_t uret = strtoumax(s, endptr, base);
+ ],[ac_c99_inttypes_tr1=yes], [ac_c99_inttypes_tr1=no])
fi
AC_MSG_RESULT($ac_c99_inttypes_tr1)
if test x"$ac_c99_inttypes_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_INTTYPES_TR1, 1,
- [Define if C99 functions in <inttypes.h> should be imported in
- <tr1/cinttypes> in namespace std::tr1.])
+ [Define if C99 functions in <inttypes.h> should be imported in
+ <tr1/cinttypes> in namespace std::tr1.])
fi
- # Check for the existence of the <stdbool.h> header.
+ # Check for the existence of whcar_t <inttypes.h> functions (NB: doesn't
+ # make sense if the glibcxx_cv_c99_stdint_tr1 check fails, per C99, 7.8/1).
+ ac_c99_inttypes_wchar_t_tr1=no;
+ if test x"$glibcxx_cv_c99_stdint_tr1" = x"yes"; then
+ AC_MSG_CHECKING([for wchar_t ISO C99 support to TR1 in <inttypes.h>])
+ AC_TRY_COMPILE([#include <inttypes.h>],
+ [intmax_t base;
+ const wchar_t* s;
+ wchar_t** endptr;
+ intmax_t ret = wcstoimax(s, endptr, base);
+ uintmax_t uret = wcstoumax(s, endptr, base);
+ ],[ac_c99_inttypes_wchar_t_tr1=yes],
+ [ac_c99_inttypes_wchar_t_tr1=no])
+ fi
+ AC_MSG_RESULT($ac_c99_inttypes_wchar_t_tr1)
+ if test x"$ac_c99_inttypes_wchar_t_tr1" = x"yes"; then
+ AC_DEFINE(_GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1, 1,
+ [Define if wchar_t C99 functions in <inttypes.h> should be
+ imported in <tr1/cinttypes> in namespace std::tr1.])
+ fi
+
+ # Check for the existence of the <stdbool.h> header.
AC_CHECK_HEADERS(stdbool.h)
+ # Check for the existence of the <stdalign.h> header.
+ AC_CHECK_HEADERS(stdalign.h)
+
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
])
if test x"$glibcxx_cv_random_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_RANDOM_TR1, 1,
- [Define if /dev/random and /dev/urandom are available for
+ [Define if /dev/random and /dev/urandom are available for
the random_device of TR1 (Chapter 5.1).])
fi
])
dnl
-dnl Check whether EOF, SEEK_CUR, and SEEK_END have the most common values:
-dnl in that case including <cstdio> in some C++ headers can be avoided.
+dnl Compute the EOF, SEEK_CUR, and SEEK_END integer constants.
dnl
-AC_DEFUN([GLIBCXX_CHECK_STDIO_MACROS], [
+AC_DEFUN([GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS], [
+
+ AC_CACHE_CHECK([for the value of EOF], glibcxx_cv_stdio_eof, [
+ AC_COMPUTE_INT([glibcxx_cv_stdio_eof], [[EOF]],
+ [#include <stdio.h>],
+ [AC_MSG_ERROR([computing EOF failed])])
+ ])
+ AC_DEFINE_UNQUOTED(_GLIBCXX_STDIO_EOF, $glibcxx_cv_stdio_eof,
+ [Define to the value of the EOF integer constant.])
+
+ AC_CACHE_CHECK([for the value of SEEK_CUR], glibcxx_cv_stdio_seek_cur, [
+ AC_COMPUTE_INT([glibcxx_cv_stdio_seek_cur], [[SEEK_CUR]],
+ [#include <stdio.h>],
+ [AC_MSG_ERROR([computing SEEK_CUR failed])])
+ ])
+ AC_DEFINE_UNQUOTED(_GLIBCXX_STDIO_SEEK_CUR, $glibcxx_cv_stdio_seek_cur,
+ [Define to the value of the SEEK_CUR integer constant.])
- AC_MSG_CHECKING([for EOF == -1, SEEK_CUR == 1, SEEK_END == 2])
- AC_CACHE_VAL(glibcxx_cv_stdio_macros, [
- AC_TRY_COMPILE([#include <stdio.h>],
- [#if ((EOF != -1) || (SEEK_CUR != 1) || (SEEK_END != 2))
- unusual values...
- #endif
- ], [glibcxx_cv_stdio_macros=yes],
- [glibcxx_cv_stdio_macros=no])
+ AC_CACHE_CHECK([for the value of SEEK_END], glibcxx_cv_stdio_seek_end, [
+ AC_COMPUTE_INT([glibcxx_cv_stdio_seek_end], [[SEEK_END]],
+ [#include <stdio.h>],
+ [AC_MSG_ERROR([computing SEEK_END failed])])
])
- AC_MSG_RESULT($glibcxx_cv_stdio_macros)
- if test x"$glibcxx_cv_stdio_macros" = x"yes"; then
- AC_DEFINE(_GLIBCXX_STDIO_MACROS, 1,
- [Define if EOF == -1, SEEK_CUR == 1, SEEK_END == 2.])
+ AC_DEFINE_UNQUOTED(_GLIBCXX_STDIO_SEEK_END, $glibcxx_cv_stdio_seek_end,
+ [Define to the value of the SEEK_END integer constant.])
+])
+
+dnl
+dnl Check whether required C++ overloads are present in <math.h>.
+dnl
+
+AC_DEFUN([GLIBCXX_CHECK_MATH_PROTO], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+
+ case "$host" in
+ *-*-solaris2.*)
+ # Solaris 8 FCS only had an overload for double std::abs(double) in
+ # <iso/math_iso.h>. Patches 111721-04 (SPARC) and 112757-01 (x86)
+ # introduced the full set also found from Solaris 9 onwards.
+ AC_MSG_CHECKING([for float std::abs(float) overload])
+ AC_CACHE_VAL(glibcxx_cv_abs_float, [
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE(
+ [#include <math.h>
+ namespace std {
+ inline float abs(float __x)
+ { return __builtin_fabsf(__x); }
+ }
+ ])],
+ [glibcxx_cv_abs_float=no],
+ [glibcxx_cv_abs_float=yes]
+ )])
+
+ # autoheader cannot handle indented templates.
+ AH_VERBATIM([__CORRECT_ISO_CPP_MATH_H_PROTO1],
+ [/* Define if all C++ overloads are available in <math.h>. */
+#if __cplusplus >= 199711L
+#undef __CORRECT_ISO_CPP_MATH_H_PROTO1
+#endif])
+ AH_VERBATIM([__CORRECT_ISO_CPP_MATH_H_PROTO2],
+ [/* Define if only double std::abs(double) is available in <math.h>. */
+#if __cplusplus >= 199711L
+#undef __CORRECT_ISO_CPP_MATH_H_PROTO2
+#endif])
+
+ if test $glibcxx_cv_abs_float = yes; then
+ AC_DEFINE(__CORRECT_ISO_CPP_MATH_H_PROTO1)
+ else
+ AC_DEFINE(__CORRECT_ISO_CPP_MATH_H_PROTO2)
+ fi
+ AC_MSG_RESULT($glibcxx_cv_abs_float)
+ ;;
+ esac
+
+ AC_LANG_RESTORE
+])
+
+dnl
+dnl Check whether required C++ overloads are present in <stdlib.h>.
+dnl
+
+AC_DEFUN([GLIBCXX_CHECK_STDLIB_PROTO], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+
+ case "$host" in
+ *-*-solaris2.*)
+ # Solaris 8 FCS lacked the overloads for long std::abs(long) and
+ # ldiv_t std::div(long, long) in <iso/stdlib_iso.h>. Patches 109607-02
+ # (SPARC) and 109608-02 (x86) introduced them.
+ AC_MSG_CHECKING([for long std::abs(long) overload])
+ AC_CACHE_VAL(glibcxx_cv_abs_long, [
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE(
+ [#include <stdlib.h>
+ namespace std {
+ inline long
+ abs(long __i) { return labs(__i); }
+ }
+ ])],
+ [glibcxx_cv_abs_long=no],
+ [glibcxx_cv_abs_long=yes]
+ )])
+
+ # autoheader cannot handle indented templates.
+ AH_VERBATIM([__CORRECT_ISO_CPP_STDLIB_H_PROTO],
+ [/* Define if all C++ overloads are available in <stdlib.h>. */
+#if __cplusplus >= 199711L
+#undef __CORRECT_ISO_CPP_STDLIB_H_PROTO
+#endif])
+ if test $glibcxx_cv_abs_long = yes; then
+ AC_DEFINE(__CORRECT_ISO_CPP_STDLIB_H_PROTO, 1)
+ fi
+ AC_MSG_RESULT($glibcxx_cv_abs_long)
+ ;;
+ esac
+
+ AC_LANG_RESTORE
+])
+
+dnl
+dnl Check whether required C++ overloads are present in <stdio.h>.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_STDIO_PROTO], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+
+ AC_MSG_CHECKING([for gets declaration])
+ AC_CACHE_VAL(glibcxx_cv_gets, [
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE(
+ [#include <stdio.h>
+ namespace test
+ {
+ using ::gets;
+ }
+ ])],
+ [glibcxx_cv_gets=yes],
+ [glibcxx_cv_gets=no]
+ )])
+
+ if test $glibcxx_cv_gets = yes; then
+ AC_DEFINE(HAVE_GETS, 1, [Define if gets is available in <stdio.h>.])
fi
+ AC_MSG_RESULT($glibcxx_cv_gets)
+ AC_LANG_RESTORE
])
dnl
m4_pushdef([n_syserr], [1])dnl
m4_foreach([syserr], [EOWNERDEAD, ENOTRECOVERABLE, ENOLINK, EPROTO, ENODATA,
ENOSR, ENOSTR, ETIME, EBADMSG, ECANCELED,
- EOVERFLOW, ENOTSUP, EIDRM, ETXTBSY],
+ EOVERFLOW, ENOTSUP, EIDRM, ETXTBSY,
+ ECHILD, ENOSPC, EPERM,
+ ETIMEDOUT, EWOULDBLOCK],
[m4_pushdef([SYSERR], m4_toupper(syserr))dnl
AC_MSG_CHECKING([for syserr])
AC_CACHE_VAL([glibcxx_cv_system_error[]n_syserr], [
])
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].
dnl Where DEFAULT is either 'c' or 'c_std' or 'c_global'.
dnl
AC_DEFUN([GLIBCXX_ENABLE_CHEADERS], [
- GLIBCXX_ENABLE(cheaders,$1,[=KIND],
+ GLIBCXX_ENABLE(cheaders,$1,[[[=KIND]]],
[construct "C" headers for g++], [permit c|c_std|c_global])
AC_MSG_NOTICE("C" header strategy set to $enable_cheaders)
c_compatibility=yes
fi
- if test $enable_cheaders = c_global || test $enable_cheaders = c_std; then
- c_extra=yes
- fi
-
AC_SUBST(C_INCLUDE_DIR)
GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_C, test $enable_cheaders = c)
GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_C_STD, test $enable_cheaders = c_std)
GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_C_GLOBAL, test $enable_cheaders = c_global)
GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_COMPATIBILITY, test $c_compatibility = yes)
- GLIBCXX_CONDITIONAL(GLIBCXX_C_HEADERS_EXTRA, test $c_extra = yes)
])
dnl Default is generic.
dnl
AC_DEFUN([GLIBCXX_ENABLE_CLOCALE], [
- GLIBCXX_ENABLE(clocale,auto,[@<:@=MODEL@:>@],
+ GLIBCXX_ENABLE(clocale,auto,[[[=MODEL]]],
[use MODEL for target locale package],
- [permit generic|gnu|ieee_1003.1-2001|yes|no|auto])
+ [permit generic|gnu|ieee_1003.1-2001|newlib|yes|no|auto])
# Deal with gettext issues. Default to not using it (=no) until we detect
# support for it later. Let the user turn it off via --e/d, but let that
AC_HELP_STRING([--enable-nls],[use Native Language Support (default)]),
[],
[enable_nls=yes])
-
- # Either a known packaage, or "auto"
+
+ # Either a known package, or "auto"
if test $enable_clocale = no || test $enable_clocale = yes; then
enable_clocale=auto
fi
if test $enable_clocale_flag = auto; then
case ${target_os} in
linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
- enable_clocale_flag=gnu
- ;;
+ enable_clocale_flag=gnu
+ ;;
darwin* | freebsd*)
- enable_clocale_flag=darwin
+ enable_clocale_flag=darwin
;;
*)
- enable_clocale_flag=generic
- ;;
+ if test x"$with_newlib" = x"yes"; then
+ enable_clocale_flag=newlib
+ else
+ enable_clocale_flag=generic
+ fi
+ ;;
esac
fi
if test $enable_clocale_flag = gnu; then
AC_EGREP_CPP([_GLIBCXX_ok], [
#include <features.h>
- #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
+ #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(__UCLIBC__)
_GLIBCXX_ok
#endif
], enable_clocale_flag=gnu, enable_clocale_flag=generic)
- if test $enable_clocale = auto; then
- # Test for bugs early in glibc-2.2.x series
- AC_TRY_RUN([
- #define _GNU_SOURCE 1
- #include <locale.h>
- #include <string.h>
- #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
- extern __typeof(newlocale) __newlocale;
- extern __typeof(duplocale) __duplocale;
- extern __typeof(strcoll_l) __strcoll_l;
- #endif
- int main()
- {
- const char __one[] = "Äuglein Augmen";
- const char __two[] = "Äuglein";
- int i;
- int j;
- __locale_t loc;
- __locale_t loc_dup;
- loc = __newlocale(1 << LC_ALL, "de_DE", 0);
- loc_dup = __duplocale(loc);
- i = __strcoll_l(__one, __two, loc);
- j = __strcoll_l(__one, __two, loc_dup);
- return 0;
- }
- ],
- [enable_clocale_flag=gnu],[enable_clocale_flag=generic],
- [enable_clocale_flag=generic])
- fi
-
# Set it to scream when it hurts.
- ac_save_CFLAGS="$CFLAGS"
+ ac_save_CFLAGS="$CFLAGS"
CFLAGS="-Wimplicit-function-declaration -Werror"
# Use strxfrm_l if available.
AC_TRY_COMPILE([#define _GNU_SOURCE 1
#include <string.h>
#include <locale.h>],
- [char s[128]; __locale_t loc; strxfrm_l(s, "C", 5, loc);],
- AC_DEFINE(HAVE_STRXFRM_L, 1,
- [Define if strxfrm_l is available in <string.h>.]),)
-
+ [char s[128]; __locale_t loc; strxfrm_l(s, "C", 5, loc);],
+ AC_DEFINE(HAVE_STRXFRM_L, 1,
+ [Define if strxfrm_l is available in <string.h>.]),)
+
# Use strerror_l if available.
AC_TRY_COMPILE([#define _GNU_SOURCE 1
#include <string.h>
#include <locale.h>],
- [__locale_t loc; strerror_l(5, loc);],
- AC_DEFINE(HAVE_STRERROR_L, 1,
- [Define if strerror_l is available in <string.h>.]),)
+ [__locale_t loc; strerror_l(5, loc);],
+ AC_DEFINE(HAVE_STRERROR_L, 1,
+ [Define if strerror_l is available in <string.h>.]),)
CFLAGS="$ac_save_CFLAGS"
fi
# Perhaps use strerror_r if available, and strerror_l isn't.
- ac_save_CFLAGS="$CFLAGS"
+ ac_save_CFLAGS="$CFLAGS"
CFLAGS="-Wimplicit-function-declaration -Werror"
AC_TRY_COMPILE([#define _GNU_SOURCE 1
#include <string.h>
#include <locale.h>],
- [char s[128]; strerror_r(5, s, 128);],
- AC_DEFINE(HAVE_STRERROR_R, 1,
- [Define if strerror_r is available in <string.h>.]),)
+ [char s[128]; strerror_r(5, s, 128);],
+ AC_DEFINE(HAVE_STRERROR_R, 1,
+ [Define if strerror_r is available in <string.h>.]),)
CFLAGS="$ac_save_CFLAGS"
# Set configure bits for specified locale package
CTIME_CC=config/locale/generic/time_members.cc
CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
;;
-
+
gnu)
AC_MSG_RESULT(gnu)
# Don't call AM-GNU-GETTEXT here. Instead, assume glibc.
AC_CHECK_PROG(check_msgfmt, msgfmt, yes, no)
if test x"$check_msgfmt" = x"yes" && test x"$enable_nls" = x"yes"; then
- USE_NLS=yes
+ USE_NLS=yes
fi
# Export the build objects.
for ling in $ALL_LINGUAS; do \
- glibcxx_MOFILES="$glibcxx_MOFILES $ling.mo"; \
- glibcxx_POFILES="$glibcxx_POFILES $ling.po"; \
+ glibcxx_MOFILES="$glibcxx_MOFILES $ling.mo"; \
+ glibcxx_POFILES="$glibcxx_POFILES $ling.po"; \
done
AC_SUBST(glibcxx_MOFILES)
AC_SUBST(glibcxx_POFILES)
CTIME_CC=config/locale/generic/time_members.cc
CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
;;
+ newlib)
+ AC_MSG_RESULT(newlib)
+
+ CLOCALE_H=config/locale/generic/c_locale.h
+ CLOCALE_CC=config/locale/generic/c_locale.cc
+ CCODECVT_CC=config/locale/generic/codecvt_members.cc
+ CCOLLATE_CC=config/locale/generic/collate_members.cc
+ CCTYPE_CC=config/locale/newlib/ctype_members.cc
+ CMESSAGES_H=config/locale/generic/messages_members.h
+ CMESSAGES_CC=config/locale/generic/messages_members.cc
+ CMONEY_CC=config/locale/generic/monetary_members.cc
+ CNUMERIC_CC=config/locale/generic/numeric_members.cc
+ CTIME_H=config/locale/generic/time_members.h
+ CTIME_CC=config/locale/generic/time_members.cc
+ CLOCALE_INTERNAL_H=config/locale/generic/c++locale_internal.h
+ ;;
esac
# This is where the testsuite looks for locale catalogs, using the
AC_SEARCH_LIBS(gettext, intl, [], USE_NLS=no)
fi
if test $USE_NLS = yes; then
- AC_DEFINE(_GLIBCXX_USE_NLS, 1,
- [Define if NLS translations are to be used.])
+ AC_DEFINE(_GLIBCXX_USE_NLS, 1,
+ [Define if NLS translations are to be used.])
fi
AC_SUBST(USE_NLS)
dnl
AC_DEFUN([GLIBCXX_ENABLE_ALLOCATOR], [
AC_MSG_CHECKING([for std::allocator base class])
- GLIBCXX_ENABLE(libstdcxx-allocator,auto,[=KIND],
+ GLIBCXX_ENABLE(libstdcxx-allocator,auto,[[[=KIND]]],
[use KIND for target std::allocator base],
[permit new|malloc|mt|bitmap|pool|yes|no|auto])
if test $enable_libstdcxx_allocator_flag = auto; then
case ${target_os} in
linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
- enable_libstdcxx_allocator_flag=new
- ;;
+ enable_libstdcxx_allocator_flag=new
+ ;;
*)
- enable_libstdcxx_allocator_flag=new
- ;;
+ enable_libstdcxx_allocator_flag=new
+ ;;
esac
fi
AC_MSG_RESULT($enable_libstdcxx_allocator_flag)
-
+
# Set configure bits for specified locale package
case ${enable_libstdcxx_allocator_flag} in
pool)
ALLOCATOR_H=config/allocator/pool_allocator_base.h
ALLOCATOR_NAME=__gnu_cxx::__pool_alloc
- ;;
+ ;;
esac
AC_SUBST(ALLOCATOR_H)
GLIBCXX_ENABLE(concept-checks,$1,,[use Boost-derived template checks])
if test $enable_concept_checks = yes; then
AC_DEFINE(_GLIBCXX_CONCEPT_CHECKS, 1,
- [Define to use concept checking code from the boost libraries.])
+ [Define to use concept checking code from the boost libraries.])
fi
])
dnl
+dnl Use extern templates.
+dnl
+dnl --enable-extern-template defines _GLIBCXX_EXTERN_TEMPLATE to 1
+dnl --disable-extern-template defines _GLIBCXX_EXTERN_TEMPLATE to 0
+
+dnl + Usage: GLIBCXX_ENABLE_TEMPLATE[(DEFAULT)]
+dnl Where DEFAULT is `yes' or `no'.
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_EXTERN_TEMPLATE], [
+
+ GLIBCXX_ENABLE(extern-template,$1,,[enable extern template])
+
+ AC_MSG_CHECKING([for extern template support])
+ AC_MSG_RESULT([$enable_extern_template])
+
+ GLIBCXX_CONDITIONAL(ENABLE_EXTERN_TEMPLATE, test $enable_extern_template = yes)
+])
+
+dnl
dnl Check for parallel mode pre-requisites, including OpenMP support.
dnl
dnl + Usage: GLIBCXX_ENABLE_PARALLEL
# See if configured libgomp/omp.h exists. (libgomp may be in
# noconfigdirs but not explicitly disabled.)
- if test -f $glibcxx_builddir/../libgomp/omp.h; then
+ if echo " ${TARGET_CONFIGDIRS} " | grep " libgomp " > /dev/null 2>&1 ; then
enable_parallel=yes;
else
- AC_MSG_NOTICE([$glibcxx_builddir/../libgomp/omp.h not found])
+ AC_MSG_NOTICE([target-libgomp not built])
fi
AC_MSG_CHECKING([for parallel mode support])
dnl
AC_DEFUN([GLIBCXX_ENABLE_CSTDIO], [
AC_MSG_CHECKING([for underlying I/O to use])
- GLIBCXX_ENABLE(cstdio,stdio,[=PACKAGE],
+ GLIBCXX_ENABLE(cstdio,stdio,[[[=PACKAGE]]],
[use target-specific I/O package], [permit stdio])
# Now that libio has been removed, you can have any color you want as long
if test -n "$enable_cxx_flags"; then
for f in $enable_cxx_flags; do
case "$f" in
- -fhonor-std) ;;
- -*) ;;
- *) # and we're trying to pass /what/ exactly?
- AC_MSG_ERROR([compiler flags start with a -]) ;;
+ -fhonor-std) ;;
+ -*) ;;
+ *) # and we're trying to pass /what/ exactly?
+ AC_MSG_ERROR([compiler flags start with a -]) ;;
esac
done
fi
AC_DEFUN([GLIBCXX_ENABLE_HOSTED], [
AC_ARG_ENABLE([hosted-libstdcxx],
AC_HELP_STRING([--disable-hosted-libstdcxx],
- [only build freestanding C++ runtime support]),,
+ [only build freestanding C++ runtime support]),,
[case "$host" in
- arm*-*-symbianelf*)
+ arm*-*-symbianelf*)
enable_hosted_libstdcxx=no
;;
- *)
+ *)
enable_hosted_libstdcxx=yes
;;
esac])
AC_DEFUN([GLIBCXX_ENABLE_LONG_LONG], [
GLIBCXX_ENABLE(long-long,$1,,[enable template specializations for 'long long'])
if test $enable_long_long = yes; then
- AC_DEFINE(_GLIBCXX_USE_LONG_LONG, 1,
- [Define if code specialized for long long should be used.])
+ AC_DEFINE(_GLIBCXX_USE_LONG_LONG, 1,
+ [Define if code specialized for long long should be used.])
fi
AC_MSG_CHECKING([for enabled long long specializations])
AC_MSG_RESULT([$enable_long_long])
dnl
+dnl Check for decimal floating point.
+dnl See:
+dnl http://gcc.gnu.org/onlinedocs/gcc/Decimal-Float.html#Decimal-Float
+dnl
+dnl This checks to see if the host supports decimal floating point types.
+dnl
+dnl Defines:
+dnl _GLIBCXX_USE_DECIMAL_FLOAT
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_DECIMAL_FLOAT], [
+
+ # Fake what AC_TRY_COMPILE does, without linking as this is
+ # unnecessary for this test.
+
+ cat > conftest.$ac_ext << EOF
+[#]line __oline__ "configure"
+int main()
+{
+ _Decimal32 d1;
+ _Decimal64 d2;
+ _Decimal128 d3;
+ return 0;
+}
+EOF
+
+ AC_MSG_CHECKING([for ISO/IEC TR 24733 ])
+ if AC_TRY_EVAL(ac_compile); then
+ AC_DEFINE(_GLIBCXX_USE_DECIMAL_FLOAT, 1,
+ [Define if ISO/IEC TR 24733 decimal floating point types are supported on this host.])
+ enable_dfp=yes
+ else
+ enable_dfp=no
+ fi
+ AC_MSG_RESULT($enable_dfp)
+ rm -f conftest*
+])
+
+dnl
+dnl Check for GNU 128-bit integer and floating point types.
+dnl
+dnl Note: also checks that the types aren't standard types.
+dnl
+dnl Defines:
+dnl _GLIBCXX_USE_INT128
+dnl _GLIBCXX_USE_FLOAT128
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_INT128_FLOAT128], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+
+ # Fake what AC_TRY_COMPILE does, without linking as this is
+ # unnecessary for this test.
+
+ cat > conftest.$ac_ext << EOF
+[#]line __oline__ "configure"
+template<typename T1, typename T2>
+ struct same
+ { typedef T2 type; };
+
+template<typename T>
+ struct same<T, T>;
+
+int main()
+{
+ typename same<long, __int128>::type i1;
+ typename same<long long, __int128>::type i2;
+}
+EOF
+
+ AC_MSG_CHECKING([for __int128])
+ if AC_TRY_EVAL(ac_compile); then
+ AC_DEFINE(_GLIBCXX_USE_INT128, 1,
+ [Define if __int128 is supported on this host.])
+ enable_int128=yes
+ else
+ enable_int128=no
+ fi
+ AC_MSG_RESULT($enable_int128)
+ rm -f conftest*
+
+ cat > conftest.$ac_ext << EOF
+[#]line __oline__ "configure"
+template<typename T1, typename T2>
+ struct same
+ { typedef T2 type; };
+
+template<typename T>
+ struct same<T, T>;
+
+int main()
+{
+ typename same<double, __float128>::type f1;
+ typename same<long double, __float128>::type f2;
+}
+EOF
+
+ AC_MSG_CHECKING([for __float128])
+ if AC_TRY_EVAL(ac_compile); then
+ AC_DEFINE(_GLIBCXX_USE_FLOAT128, 1,
+ [Define if __float128 is supported on this host.])
+ enable_float128=yes
+ else
+ enable_float128=no
+ fi
+ AC_MSG_RESULT($enable_float128)
+ rm -f conftest*
+
+ AC_LANG_RESTORE
+])
+
+dnl
dnl Check for template specializations for the 'wchar_t' type.
dnl
dnl --enable-wchar_t defines _GLIBCXX_USE_WCHAR_T
# Test it always, for use in GLIBCXX_ENABLE_C99, together with
# ac_has_wchar_h.
AC_CHECK_HEADERS(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no)
-
+
if test x"$enable_wchar_t" = x"yes"; then
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
-
+
if test x"$ac_has_wchar_h" = xyes &&
test x"$ac_has_wctype_h" = xyes; then
AC_TRY_COMPILE([#include <wchar.h>
- #include <stddef.h>
- wint_t i;
+ #include <stddef.h>
+ wint_t i;
long l = WEOF;
long j = WCHAR_MIN;
long k = WCHAR_MAX;
- namespace test
- {
+ namespace test
+ {
using ::btowc;
using ::fgetwc;
using ::fgetws;
using ::fputwc;
using ::fputws;
using ::fwide;
- using ::fwprintf;
+ using ::fwprintf;
using ::fwscanf;
using ::getwc;
using ::getwchar;
- using ::mbrlen;
- using ::mbrtowc;
- using ::mbsinit;
- using ::mbsrtowcs;
+ using ::mbrlen;
+ using ::mbrtowc;
+ using ::mbsinit;
+ using ::mbsrtowcs;
using ::putwc;
using ::putwchar;
- using ::swprintf;
- using ::swscanf;
+ using ::swprintf;
+ using ::swscanf;
using ::ungetwc;
- using ::vfwprintf;
- using ::vswprintf;
- using ::vwprintf;
- using ::wcrtomb;
- using ::wcscat;
- using ::wcschr;
- using ::wcscmp;
- using ::wcscoll;
- using ::wcscpy;
- using ::wcscspn;
- using ::wcsftime;
+ using ::vfwprintf;
+ using ::vswprintf;
+ using ::vwprintf;
+ using ::wcrtomb;
+ using ::wcscat;
+ using ::wcschr;
+ using ::wcscmp;
+ using ::wcscoll;
+ using ::wcscpy;
+ using ::wcscspn;
+ using ::wcsftime;
using ::wcslen;
- using ::wcsncat;
- using ::wcsncmp;
- using ::wcsncpy;
+ using ::wcsncat;
+ using ::wcsncmp;
+ using ::wcsncpy;
using ::wcspbrk;
- using ::wcsrchr;
- using ::wcsrtombs;
- using ::wcsspn;
+ using ::wcsrchr;
+ using ::wcsrtombs;
+ using ::wcsspn;
using ::wcsstr;
- using ::wcstod;
- using ::wcstok;
+ using ::wcstod;
+ using ::wcstok;
using ::wcstol;
- using ::wcstoul;
- using ::wcsxfrm;
- using ::wctob;
+ using ::wcstoul;
+ using ::wcsxfrm;
+ using ::wctob;
using ::wmemchr;
using ::wmemcmp;
using ::wmemcpy;
using ::wmemmove;
using ::wmemset;
- using ::wprintf;
- using ::wscanf;
+ using ::wprintf;
+ using ::wscanf;
}
],[],[], [enable_wchar_t=no])
else
if test x"$enable_wchar_t" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_WCHAR_T, 1,
- [Define if code specialized for wchar_t should be used.])
+ [Define if code specialized for wchar_t should be used.])
fi
AC_MSG_CHECKING([for enabled wchar_t specializations])
AC_LANG_CPLUSPLUS
echo '#include <math.h>' > conftest.h
if $CXX $CXXFLAGS $CPPFLAGS -x c++-header conftest.h \
- -o conftest.h.gch 1>&5 2>&1 &&
- echo '#error "pch failed"' > conftest.h &&
- echo '#include "conftest.h"' > conftest.cc &&
+ -o conftest.h.gch 1>&5 2>&1 &&
+ echo '#error "pch failed"' > conftest.h &&
+ echo '#include "conftest.h"' > conftest.cc &&
$CXX -c $CXXFLAGS $CPPFLAGS conftest.cc 1>&5 2>&1 ;
then
- glibcxx_cv_prog_CXX_pch=yes
+ glibcxx_cv_prog_CXX_pch=yes
else
- glibcxx_cv_prog_CXX_pch=no
+ glibcxx_cv_prog_CXX_pch=no
fi
rm -f conftest*
CXXFLAGS=$ac_save_CXXFLAGS
dnl
dnl Check for atomic builtins.
dnl See:
-dnl http://gcc.gnu.org/onlinedocs/gcc/Atomic-Builtins.html#Atomic-Builtins
+dnl http://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html
dnl
dnl This checks to see if the host supports the compiler-generated
-dnl builtins for atomic operations for various integral sizes. Note, this
+dnl builtins for atomic operations for various integral sizes. Note, this
dnl is intended to be an all-or-nothing switch, so all the atomic operations
dnl that are used should be checked.
dnl
dnl Note:
-dnl libgomp and libgfortran do this with a link test, instead of an asm test.
-dnl see: CHECK_SYNC_FETCH_AND_ADD
-dnl
-dnl Defines:
-dnl _GLIBCXX_ATOMIC_BUILTINS_1
-dnl _GLIBCXX_ATOMIC_BUILTINS_4
+dnl libgomp and libgfortran use a link test, see CHECK_SYNC_FETCH_AND_ADD.
dnl
AC_DEFUN([GLIBCXX_ENABLE_ATOMIC_BUILTINS], [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
old_CXXFLAGS="$CXXFLAGS"
-
+
+ # Do link tests if possible, instead asm tests, limited to some platforms
+ # see discussion in PR target/40134, PR libstdc++/40133 and the thread
+ # starting at http://gcc.gnu.org/ml/gcc-patches/2009-07/msg00322.html
+ atomic_builtins_link_tests=no
+ if test x$gcc_no_link != xyes; then
+ # Can do link tests. Limit to some tested platforms
+ case "$host" in
+ *-*-linux* | *-*-uclinux* | *-*-kfreebsd*-gnu | *-*-gnu*)
+ atomic_builtins_link_tests=yes
+ ;;
+ esac
+ fi
+
+ if test x$atomic_builtins_link_tests = xyes; then
+
+ # Do link tests.
+
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+ AC_MSG_CHECKING([for atomic builtins for bool])
+ AC_CACHE_VAL(glibcxx_cv_atomic_bool, [
+ AC_TRY_LINK(
+ [ ],
+ [typedef bool atomic_type;
+ atomic_type c1;
+ atomic_type c2;
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+ ],
+ [glibcxx_cv_atomic_bool=yes],
+ [glibcxx_cv_atomic_bool=no])
+ ])
+ AC_MSG_RESULT($glibcxx_cv_atomic_bool)
+
+ AC_MSG_CHECKING([for atomic builtins for short])
+ AC_CACHE_VAL(glibcxx_cv_atomic_short, [
+ AC_TRY_LINK(
+ [ ],
+ [typedef short atomic_type;
+ atomic_type c1;
+ atomic_type c2;
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+ ],
+ [glibcxx_cv_atomic_short=yes],
+ [glibcxx_cv_atomic_short=no])
+ ])
+ AC_MSG_RESULT($glibcxx_cv_atomic_short)
+
+ AC_MSG_CHECKING([for atomic builtins for int])
+ AC_CACHE_VAL(glibcxx_cv_atomic_int, [
+ AC_TRY_LINK(
+ [ ],
+ [typedef int atomic_type;
+ atomic_type c1;
+ atomic_type c2;
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+ ],
+ [glibcxx_cv_atomic_int=yes],
+ [glibcxx_cv_atomic_int=no])
+ ])
+ AC_MSG_RESULT($glibcxx_cv_atomic_int)
+
+ AC_MSG_CHECKING([for atomic builtins for long long])
+ AC_CACHE_VAL(glibcxx_cv_atomic_long_long, [
+ AC_TRY_LINK(
+ [ ],
+ [typedef long long atomic_type;
+ atomic_type c1;
+ atomic_type c2;
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+ ],
+ [glibcxx_cv_atomic_long_long=yes],
+ [glibcxx_cv_atomic_long_long=no])
+ ])
+ AC_MSG_RESULT($glibcxx_cv_atomic_long_long)
+
+ else
+
+ # Do asm tests.
+
# Compile unoptimized.
CXXFLAGS='-O0 -S'
- # Fake what AC_TRY_COMPILE does, without linking as this is
- # unnecessary for a builtins test.
+ # Fake what AC_TRY_COMPILE does.
+
+ cat > conftest.$ac_ext << EOF
+[#]line __oline__ "configure"
+int main()
+{
+ typedef bool atomic_type;
+ atomic_type c1;
+ atomic_type c2;
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
+ return 0;
+}
+EOF
+
+ AC_MSG_CHECKING([for atomic builtins for bool])
+ if AC_TRY_EVAL(ac_compile); then
+ if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+ glibcxx_cv_atomic_bool=no
+ else
+ glibcxx_cv_atomic_bool=yes
+ fi
+ fi
+ AC_MSG_RESULT($glibcxx_cv_atomic_bool)
+ rm -f conftest*
cat > conftest.$ac_ext << EOF
[#]line __oline__ "configure"
int main()
{
- // NB: _Atomic_word not necessarily int.
+ typedef short atomic_type;
+ atomic_type c1;
+ atomic_type c2;
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
+ return 0;
+}
+EOF
+
+ AC_MSG_CHECKING([for atomic builtins for short])
+ if AC_TRY_EVAL(ac_compile); then
+ if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+ glibcxx_cv_atomic_short=no
+ else
+ glibcxx_cv_atomic_short=yes
+ fi
+ fi
+ AC_MSG_RESULT($glibcxx_cv_atomic_short)
+ rm -f conftest*
+
+ cat > conftest.$ac_ext << EOF
+[#]line __oline__ "configure"
+int main()
+{
+ // NB: _Atomic_word not necessarily int.
typedef int atomic_type;
atomic_type c1;
atomic_type c2;
- const atomic_type c3(0);
- __sync_fetch_and_add(&c1, c2);
- __sync_val_compare_and_swap(&c1, c3, c2);
- __sync_lock_test_and_set(&c1, c3);
- __sync_lock_release(&c1);
- __sync_synchronize();
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
return 0;
}
EOF
AC_MSG_CHECKING([for atomic builtins for int])
if AC_TRY_EVAL(ac_compile); then
- if grep __sync_ conftest.s >/dev/null 2>&1 ; then
- enable_atomic_builtinsi=no
+ if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+ glibcxx_cv_atomic_int=no
else
- AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS_4, 1,
- [Define if builtin atomic operations for int are supported on this host.])
- enable_atomic_builtinsi=yes
+ glibcxx_cv_atomic_int=yes
fi
fi
- AC_MSG_RESULT($enable_atomic_builtinsi)
+ AC_MSG_RESULT($glibcxx_cv_atomic_int)
rm -f conftest*
cat > conftest.$ac_ext << EOF
[#]line __oline__ "configure"
int main()
{
- typedef bool atomic_type;
+ typedef long long atomic_type;
atomic_type c1;
atomic_type c2;
- const atomic_type c3(0);
- __sync_fetch_and_add(&c1, c2);
- __sync_val_compare_and_swap(&c1, c3, c2);
- __sync_lock_test_and_set(&c1, c3);
- __sync_lock_release(&c1);
- __sync_synchronize();
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
return 0;
}
EOF
- AC_MSG_CHECKING([for atomic builtins for bool])
+ AC_MSG_CHECKING([for atomic builtins for long long])
if AC_TRY_EVAL(ac_compile); then
- if grep __sync_ conftest.s >/dev/null 2>&1 ; then
- enable_atomic_builtinsb=no
+ if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+ glibcxx_cv_atomic_long_long=no
else
- AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS_1, 1,
- [Define if builtin atomic operations for bool are supported on this host.])
- enable_atomic_builtinsb=yes
+ glibcxx_cv_atomic_long_long=yes
fi
fi
- AC_MSG_RESULT($enable_atomic_builtinsb)
+ AC_MSG_RESULT($glibcxx_cv_atomic_long_long)
rm -f conftest*
+ fi
+
CXXFLAGS="$old_CXXFLAGS"
AC_LANG_RESTORE
- # Set atomicity_dir to builtins if either of above tests pass.
- if test $enable_atomic_builtinsi = yes || test $enable_atomic_builtinsb = yes ; then
+ # Set atomicity_dir to builtins if all but the long long test above passes.
+ if test $glibcxx_cv_atomic_bool = yes \
+ && test $glibcxx_cv_atomic_short = yes \
+ && test $glibcxx_cv_atomic_int = yes; then
+ AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS, 1,
+ [Define if the compiler supports C++11 atomics.])
atomicity_dir=cpu/generic/atomicity_builtins
fi
if test $atomicity_dir = "cpu/generic" ; then
atomicity_dir=cpu/generic/atomicity_mutex
AC_MSG_WARN([No native atomic operations are provided for this platform.])
- if test $target_thread_file = single; then
- AC_MSG_WARN([They cannot be faked when thread support is disabled.])
- AC_MSG_WARN([Thread-safety of certain classes is not guaranteed.])
+ if test "x$target_thread_file" = xsingle; then
+ AC_MSG_WARN([They cannot be faked when thread support is disabled.])
+ AC_MSG_WARN([Thread-safety of certain classes is not guaranteed.])
else
- AC_MSG_WARN([They will be faked using a mutex.])
- AC_MSG_WARN([Performance of certain classes will degrade as a result.])
+ AC_MSG_WARN([They will be faked using a mutex.])
+ AC_MSG_WARN([Performance of certain classes will degrade as a result.])
fi
fi
CXXFLAGS=-S
if AC_TRY_EVAL(ac_compile); then
if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=yes
+ enable_sjlj_exceptions=yes
elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=no
+ enable_sjlj_exceptions=no
elif grep __cxa_end_cleanup conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=no
+ enable_sjlj_exceptions=no
fi
fi
CXXFLAGS="$old_CXXFLAGS"
case $enable_sjlj_exceptions in
yes)
AC_DEFINE(_GLIBCXX_SJLJ_EXCEPTIONS, 1,
- [Define if the compiler is configured for setjmp/longjmp exceptions.])
+ [Define if the compiler is configured for setjmp/longjmp exceptions.])
ac_exception_model_name=sjlj
;;
no)
dnl
dnl Allow visibility attributes to be used on namespaces, objects, etc.
dnl
-dnl --enable-visibility enables attempt to use visibility attributes.
-dnl --disable-visibility turns off all use of visibility attributes.
-dnl + Usage: GLIBCXX_ENABLE_VISIBILITY[(DEFAULT)]
+dnl --enable-libstdcxx-visibility enables attempt to use visibility attributes.
+dnl --disable-libstdcxx-visibility turns off all use of visibility attributes.
+dnl + Usage: GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY[(DEFAULT)]
dnl Where DEFAULT is 'yes'.
dnl
-AC_DEFUN([GLIBCXX_ENABLE_VISIBILITY], [
-GLIBCXX_ENABLE(visibility,$1,,[enables visibility safe usage])
+AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY], [
+GLIBCXX_ENABLE(libstdcxx-visibility,$1,,[enables visibility safe usage])
-if test x$enable_visibility = xyes ; then
+if test x$enable_libstdcxx_visibility = xyes ; then
dnl all hail libgfortran
dnl Check whether the target supports hidden visibility.
AC_CACHE_CHECK([whether the target supports hidden visibility],
glibcxx_cv_have_attribute_visibility=no)
CFLAGS="$save_CFLAGS"])
if test $glibcxx_cv_have_attribute_visibility = no; then
- enable_visibility=no
+ enable_libstdcxx_visibility=no
fi
fi
-GLIBCXX_CONDITIONAL(ENABLE_VISIBILITY, test $enable_visibility = yes)
-AC_MSG_NOTICE([visibility supported: $enable_visibility])
+GLIBCXX_CONDITIONAL(ENABLE_VISIBILITY, test $enable_libstdcxx_visibility = yes)
+AC_MSG_NOTICE([visibility supported: $enable_libstdcxx_visibility])
])
dnl Add version tags to symbols in shared library (or not), additionally
dnl marking other symbols as private/local (or not).
dnl
+dnl Sets libtool_VERSION, and determines shared library SONAME.
+dnl
+dnl This depends on GLIBCXX CHECK_LINKER_FEATURES, but without it assumes no.
+dnl
dnl --enable-symvers=style adds a version script to the linker call when
dnl creating the shared library. The choice of version script is
dnl controlled by 'style'.
dnl --disable-symvers does not.
+dnl
dnl + Usage: GLIBCXX_ENABLE_SYMVERS[(DEFAULT)]
dnl Where DEFAULT is either 'yes' or 'no'. Passing `yes' tries to
dnl choose a default style based on linker characteristics. Passing
dnl
AC_DEFUN([GLIBCXX_ENABLE_SYMVERS], [
-GLIBCXX_ENABLE(symvers,$1,[=STYLE],
+GLIBCXX_ENABLE(symvers,$1,[[[=STYLE]]],
[enables symbol versioning of the shared library],
- [permit yes|no|gnu|gnu-versioned-namespace|darwin|darwin-export])
+ [permit yes|no|gnu|gnu-versioned-namespace|darwin|darwin-export|sun])
# If we never went through the GLIBCXX_CHECK_LINKER_FEATURES macro, then we
# don't know enough about $LD to do tricks...
AC_REQUIRE([GLIBCXX_CHECK_LINKER_FEATURES])
+# Sun style symbol versions needs GNU c++filt for make_sunver.pl to work
+# with extern "C++" in version scripts.
+AC_REQUIRE([GCC_PROG_GNU_CXXFILT])
# Turn a 'yes' into a suitable default.
if test x$enable_symvers = xyes ; then
else
if test $with_gnu_ld = yes ; then
case ${target_os} in
- cygwin* | pe | mingw32*)
- enable_symvers=no ;;
- *)
- enable_symvers=gnu ;;
+ hpux*)
+ enable_symvers=no ;;
+ *)
+ enable_symvers=gnu ;;
esac
else
case ${target_os} in
- darwin*)
+ darwin*)
enable_symvers=darwin ;;
- *)
- enable_symvers=no ;;
+ # Sun symbol versioning exists since Solaris 2.5.
+ solaris2.[[5-9]]* | solaris2.1[[0-9]]*)
+ # make_sunver.pl needs GNU c++filt to support extern "C++" in
+ # version scripts, so disable symbol versioning if none can be
+ # found.
+ if test -z "$ac_cv_path_CXXFILT"; then
+ AC_MSG_WARN([=== You have requested Sun symbol versioning, but])
+ AC_MSG_WARN([=== no GNU c++filt could be found.])
+ AC_MSG_WARN([=== Symbol versioning will be disabled.])
+ enable_symvers=no
+ else
+ enable_symvers=sun
+ fi
+ ;;
+ *)
+ enable_symvers=no ;;
esac
fi
fi
enable_symvers=darwin
fi
+# Check if 'sun' was requested on non-Solaris 2 platforms.
+if test x$enable_symvers = xsun ; then
+ case ${target_os} in
+ solaris2*)
+ # All fine.
+ ;;
+ *)
+ # Unlikely to work.
+ AC_MSG_WARN([=== You have requested Sun symbol versioning, but])
+ AC_MSG_WARN([=== you are not targetting Solaris 2.])
+ AC_MSG_WARN([=== Symbol versioning will be disabled.])
+ enable_symvers=no
+ ;;
+ esac
+fi
+
# Check to see if 'gnu' can win.
-if test $enable_symvers = gnu || test $enable_symvers = gnu-versioned-namespace; then
+if test $enable_symvers = gnu ||
+ test $enable_symvers = gnu-versioned-namespace ||
+ test $enable_symvers = sun; then
# Check to see if libgcc_s exists, indicating that shared libgcc is possible.
AC_MSG_CHECKING([for shared libgcc])
ac_save_CFLAGS="$CFLAGS"
AC_MSG_WARN([=== you are not building a shared libgcc_s.])
AC_MSG_WARN([=== Symbol versioning will be disabled.])
enable_symvers=no
+ elif test $with_gnu_ld != yes && test $enable_symvers = sun; then
+ : All interesting versions of Sun ld support sun style symbol versioning.
elif test $with_gnu_ld != yes ; then
# just fail for now
AC_MSG_WARN([=== You have requested GNU symbol versioning, but])
fi
fi
-# Everything parsed; figure out what file to use.
+# For libtool versioning info, format is CURRENT:REVISION:AGE
+libtool_VERSION=6:17:0
+
+# Everything parsed; figure out what files and settings to use.
case $enable_symvers in
no)
SYMVER_FILE=config/abi/pre/none.ver
;;
gnu)
SYMVER_FILE=config/abi/pre/gnu.ver
- AC_DEFINE(_GLIBCXX_SYMVER_GNU, 1,
- [Define to use GNU versioning in the shared library.])
+ AC_DEFINE(_GLIBCXX_SYMVER_GNU, 1,
+ [Define to use GNU versioning in the shared library.])
;;
gnu-versioned-namespace)
+ libtool_VERSION=7:0:0
SYMVER_FILE=config/abi/pre/gnu-versioned-namespace.ver
- AC_DEFINE(_GLIBCXX_SYMVER_GNU_NAMESPACE, 1,
- [Define to use GNU namespace versioning in the shared library.])
+ AC_DEFINE(_GLIBCXX_SYMVER_GNU_NAMESPACE, 1,
+ [Define to use GNU namespace versioning in the shared library.])
;;
darwin)
SYMVER_FILE=config/abi/pre/gnu.ver
- AC_DEFINE(_GLIBCXX_SYMVER_DARWIN, 1,
- [Define to use darwin versioning in the shared library.])
+ AC_DEFINE(_GLIBCXX_SYMVER_DARWIN, 1,
+ [Define to use darwin versioning in the shared library.])
+ ;;
+ sun)
+ SYMVER_FILE=config/abi/pre/gnu.ver
+ AC_DEFINE(_GLIBCXX_SYMVER_SUN, 1,
+ [Define to use Sun versioning in the shared library.])
;;
esac
[Define to use symbol versioning in the shared library.])
fi
+AC_CACHE_CHECK([whether the target supports .symver directive],
+ glibcxx_cv_have_as_symver_directive, [
+ AC_TRY_COMPILE([void foo (void); __asm (".symver foo, bar@SYMVER");],
+ [], glibcxx_cv_have_as_symver_directive=yes,
+ glibcxx_cv_have_as_symver_directive=no)])
+if test $glibcxx_cv_have_as_symver_directive = yes; then
+ AC_DEFINE(HAVE_AS_SYMVER_DIRECTIVE, 1,
+ [Define to 1 if the target assembler supports .symver directive.])
+fi
+
AC_SUBST(SYMVER_FILE)
AC_SUBST(port_specific_symbol_files)
GLIBCXX_CONDITIONAL(ENABLE_SYMVERS, test $enable_symvers != no)
GLIBCXX_CONDITIONAL(ENABLE_SYMVERS_GNU, test $enable_symvers = gnu)
GLIBCXX_CONDITIONAL(ENABLE_SYMVERS_GNU_NAMESPACE, test $enable_symvers = gnu-versioned-namespace)
GLIBCXX_CONDITIONAL(ENABLE_SYMVERS_DARWIN, test $enable_symvers = darwin)
+GLIBCXX_CONDITIONAL(ENABLE_SYMVERS_SUN, test $enable_symvers = sun)
AC_MSG_NOTICE(versioning on shared library symbols is $enable_symvers)
+if test $enable_symvers != no ; then
+ case ${target_os} in
+ # The Solaris 2 runtime linker doesn't support the GNU extension of
+ # binding the same symbol to different versions
+ solaris2*)
+ ;;
+ # Other platforms with GNU symbol versioning (GNU/Linux, more?) do.
+ *)
+ AC_DEFINE(HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT, 1,
+ [Define to 1 if the target runtime linker supports binding the same symbol to different versions.])
+ ;;
+ esac
+fi
+
# Now, set up compatibility support, if any.
# In addition, need this to deal with std::size_t mangling in
# src/compatibility.cc. In a perfect world, could use
AC_MSG_CHECKING([for size_t as unsigned int])
ac_save_CFLAGS="$CFLAGS"
CFLAGS="-Werror"
-AC_TRY_COMPILE(, [__SIZE_TYPE__* stp; unsigned int* uip; stp = uip;],
- [glibcxx_size_t_is_i=yes], [glibcxx_size_t_is_i=no])
+AC_TRY_COMPILE(, [__SIZE_TYPE__* stp; unsigned int* uip; stp = uip;],
+ [glibcxx_size_t_is_i=yes], [glibcxx_size_t_is_i=no])
CFLAGS=$ac_save_CFLAGS
if test "$glibcxx_size_t_is_i" = yes; then
AC_DEFINE(_GLIBCXX_SIZE_T_IS_UINT, 1, [Define if size_t is unsigned int.])
AC_MSG_CHECKING([for ptrdiff_t as int])
ac_save_CFLAGS="$CFLAGS"
CFLAGS="-Werror"
-AC_TRY_COMPILE(, [__PTRDIFF_TYPE__* ptp; int* ip; ptp = ip;],
- [glibcxx_ptrdiff_t_is_i=yes], [glibcxx_ptrdiff_t_is_i=no])
+AC_TRY_COMPILE(, [__PTRDIFF_TYPE__* ptp; int* ip; ptp = ip;],
+ [glibcxx_ptrdiff_t_is_i=yes], [glibcxx_ptrdiff_t_is_i=no])
CFLAGS=$ac_save_CFLAGS
if test "$glibcxx_ptrdiff_t_is_i" = yes; then
AC_DEFINE(_GLIBCXX_PTRDIFF_T_IS_INT, 1, [Define if ptrdiff_t is int.])
dnl namespace are complex and fragile enough as it is). We must also
dnl add a relative path so that -I- is supported properly.
dnl
-dnl Substs:
-dnl glibcxx_thread_h
-dnl
-dnl Defines:
-dnl HAVE_GTHR_DEFAULT
-dnl
AC_DEFUN([GLIBCXX_ENABLE_THREADS], [
AC_MSG_CHECKING([for thread model used by GCC])
target_thread_file=`$CXX -v 2>&1 | sed -n 's/^Thread model: //p'`
AC_MSG_RESULT([$target_thread_file])
-
- if test $target_thread_file != single; then
- AC_DEFINE(HAVE_GTHR_DEFAULT, 1,
- [Define if gthr-default.h exists
- (meaning that threading support is enabled).])
- fi
-
- glibcxx_thread_h=gthr-$target_thread_file.h
-
- dnl Check for __GTHREADS define.
- gthread_file=${toplevel_srcdir}/gcc/${glibcxx_thread_h}
- if grep __GTHREADS $gthread_file >/dev/null 2>&1 ; then
- enable_thread=yes
- else
- enable_thread=no
- fi
-
- AC_SUBST(glibcxx_thread_h)
])
dnl required by the c++0x thread library. Conforming gthread
dnl implementations can define __GTHREADS_CXX0X to enable use with c++0x.
dnl
+dnl GLIBCXX_ENABLE_SYMVERS must be done before this.
+dnl
AC_DEFUN([GLIBCXX_CHECK_GTHREADS], [
+ GLIBCXX_ENABLE(libstdcxx-threads,auto,,[enable C++11 threads support])
+
+ if test x$enable_libstdcxx_threads = xauto ||
+ test x$enable_libstdcxx_threads = xyes; then
+
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS -fno-exceptions -I${toplevel_srcdir}/gcc"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions \
+ -I${toplevel_srcdir}/libgcc -I${toplevel_builddir}/libgcc"
target_thread_file=`$CXX -v 2>&1 | sed -n 's/^Thread model: //p'`
case $target_thread_file in
CXXFLAGS="$CXXFLAGS -DSUPPORTS_WEAK -DGTHREAD_USE_WEAK -D_PTHREADS"
esac
+ AC_MSG_CHECKING([whether it can be safely assumed that mutex_timedlock is available])
+
+ AC_TRY_COMPILE([#include <unistd.h>],
+ [
+ // In case of POSIX threads check _POSIX_TIMEOUTS.
+ #if (defined(_PTHREADS) \
+ && (!defined(_POSIX_TIMEOUTS) || _POSIX_TIMEOUTS <= 0))
+ #error
+ #endif
+ ], [ac_gthread_use_mutex_timedlock=1], [ac_gthread_use_mutex_timedlock=0])
+
+ AC_DEFINE_UNQUOTED(_GTHREAD_USE_MUTEX_TIMEDLOCK, $ac_gthread_use_mutex_timedlock,
+ [Define to 1 if mutex_timedlock is available.])
+
+ if test $ac_gthread_use_mutex_timedlock = 1 ; then res_mutex_timedlock=yes ;
+ else res_mutex_timedlock=no ; fi
+ AC_MSG_RESULT([$res_mutex_timedlock])
+
AC_MSG_CHECKING([for gthreads library])
AC_TRY_COMPILE([#include "gthr.h"],
[
- #ifndef __GTHREADS_CXX0X
- #error
- #endif
- ], [ac_has_gthreads=yes], [ac_has_gthreads=no])
+ #ifndef __GTHREADS_CXX0X
+ #error
+ #endif
+ ], [case $target_os in
+ # gthreads support breaks symbol versioning on Solaris 8/9 (PR
+ # libstdc++/52189).
+ solaris2.[[89]]*)
+ if test x$enable_symvers = xno; then
+ ac_has_gthreads=yes
+ elif test x$enable_libstdcxx_threads = xyes; then
+ AC_MSG_WARN([You have requested C++11 threads support, but])
+ AC_MSG_WARN([this breaks symbol versioning.])
+ ac_has_gthreads=yes
+ else
+ ac_has_gthreads=no
+ fi
+ ;;
+ *)
+ ac_has_gthreads=yes
+ ;;
+ esac],
+ [ac_has_gthreads=no])
+ else
+ ac_has_gthreads=no
+ fi
AC_MSG_RESULT([$ac_has_gthreads])
if test x"$ac_has_gthreads" = x"yes"; then
AC_DEFINE(_GLIBCXX_HAS_GTHREADS, 1,
- [Define if gthreads library is available.])
+ [Define if gthreads library is available.])
fi
CXXFLAGS="$ac_save_CXXFLAGS"
[AC_TRY_COMPILE([#include <locale.h>], [return LC_MESSAGES],
ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)])
if test $ac_cv_val_LC_MESSAGES = yes; then
- AC_DEFINE(HAVE_LC_MESSAGES, 1,
- [Define if LC_MESSAGES is available in <locale.h>.])
+ AC_DEFINE(HAVE_LC_MESSAGES, 1,
+ [Define if LC_MESSAGES is available in <locale.h>.])
fi
])
])
+dnl
+dnl Check whether get_nprocs is available in <sys/sysinfo.h>, and define _GLIBCXX_USE_GET_NPROCS.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_GET_NPROCS], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+ AC_MSG_CHECKING([for get_nprocs])
+ AC_CACHE_VAL(glibcxx_cv_GET_NPROCS, [
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <sys/sysinfo.h>],
+ [int n = get_nprocs();],
+ [glibcxx_cv_GET_NPROCS=yes],
+ [glibcxx_cv_GET_NPROCS=no])
+ ])
+ if test $glibcxx_cv_GET_NPROCS = yes; then
+ AC_DEFINE(_GLIBCXX_USE_GET_NPROCS, 1, [Define if get_nprocs is available in <sys/sysinfo.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_GET_NPROCS)
+
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+])
+
+dnl
+dnl Check whether sysconf(_SC_NPROCESSORS_ONLN) is available in <unistd.h>, and define _GLIBCXX_USE_SC_NPROCESSORS_ONLN.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_SC_NPROCESSORS_ONLN], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+ AC_MSG_CHECKING([for _SC_NPROCESSORS_ONLN])
+ AC_CACHE_VAL(glibcxx_cv_SC_NPROCESSORS_ONLN, [
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <unistd.h>],
+ [int n = sysconf(_SC_NPROCESSORS_ONLN);],
+ [glibcxx_cv_SC_NPROCESSORS_ONLN=yes],
+ [glibcxx_cv_SC_NPROCESSORS_ONLN=no])
+ ])
+ if test $glibcxx_cv_SC_NPROCESSORS_ONLN = yes; then
+ AC_DEFINE(_GLIBCXX_USE_SC_NPROCESSORS_ONLN, 1, [Define if _SC_NPROCESSORS_ONLN is available in <unistd.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_SC_NPROCESSORS_ONLN)
+
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+])
+
+dnl
+dnl Check whether sysconf(_SC_NPROC_ONLN) is available in <unistd.h>, and define _GLIBCXX_USE_SC_NPROC_ONLN.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_SC_NPROC_ONLN], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+ AC_MSG_CHECKING([for _SC_NPROC_ONLN])
+ AC_CACHE_VAL(glibcxx_cv_SC_NPROC_ONLN, [
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <unistd.h>],
+ [int n = sysconf(_SC_NPROC_ONLN);],
+ [glibcxx_cv_SC_NPROC_ONLN=yes],
+ [glibcxx_cv_SC_NPROC_ONLN=no])
+ ])
+ if test $glibcxx_cv_SC_NPROC_ONLN = yes; then
+ AC_DEFINE(_GLIBCXX_USE_SC_NPROC_ONLN, 1, [Define if _SC_NPROC_ONLN is available in <unistd.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_SC_NPROC_ONLN)
+
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+])
+
+dnl
+dnl Check whether pthread_num_processors_np is available in <pthread.h>, and define _GLIBCXX_USE_PTHREADS_NUM_PROCESSORS_NP.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+ AC_MSG_CHECKING([for pthreads_num_processors_np])
+ AC_CACHE_VAL(glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP, [
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <pthread.h>],
+ [int n = pthread_num_processors_np();],
+ [glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP=yes],
+ [glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP=no])
+ ])
+ if test $glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP = yes; then
+ AC_DEFINE(_GLIBCXX_USE_PTHREADS_NUM_PROCESSORS_NP, 1, [Define if pthreads_num_processors_np is available in <pthread.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_PTHREADS_NUM_PROCESSORS_NP)
+
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+])
+
+dnl
+dnl Check whether sysctl is available in <pthread.h>, and define _GLIBCXX_USE_SYSCTL_HW_NCPU.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_SYSCTL_HW_NCPU], [
+
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+
+ AC_MSG_CHECKING([for hw.ncpu sysctl])
+ AC_CACHE_VAL(glibcxx_cv_SYSCTL_HW_NCPU, [
+ GCC_TRY_COMPILE_OR_LINK(
+ [
+ #include <stddef.h>
+ #include <sys/sysctl.h>
+ ],
+ [
+ int count;
+ size_t size = sizeof(count);
+ int mib[] = { CTL_HW, HW_NCPU };
+ sysctl(mib, 2, &count, &size, NULL, 0);
+ ],
+ [glibcxx_cv_SYSCTL_HW_NCPU=yes],
+ [glibcxx_cv_SYSCTL_HW_NCPU=no])
+ ])
+ if test $glibcxx_cv_SYSCTL_HW_NCPU = yes; then
+ AC_DEFINE(_GLIBCXX_USE_SYSCTL_HW_NCPU, 1, [Define if sysctl(), CTL_HW and HW_NCPU are available in <sys/sysctl.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_SYSCTL_HW_NCPU)
+
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+])
+
+dnl
+dnl Check to see if python pretty printing can be activated.
+dnl
+dnl --with-python-dir=dir
+dnl installs directory into $prefix/dir
+AC_DEFUN([GLIBCXX_ENABLE_PYTHON], [
+
+AC_MSG_CHECKING([for custom python install directory])
+AC_ARG_WITH([python-dir],
+ AS_HELP_STRING([--with-python-dir],
+ [the location to install Python modules. This path is relative starting from the prefix.]),
+ [with_python_dir=$withval], [with_python_dir="no"])
+AC_MSG_RESULT(${with_python_dir})
+
+# Needed for installing Python modules during make install.
+python_mod_dir="${with_python_dir}"
+AC_SUBST(python_mod_dir)
+GLIBCXX_CONDITIONAL(ENABLE_PYTHONDIR, test $python_mod_dir != no)
+])
+
+dnl
+dnl Check to see if -Werror is disabled.
+dnl
+dnl --enable-werror/--disable-werror
+AC_DEFUN([GLIBCXX_ENABLE_WERROR], [
+ AC_MSG_CHECKING([for -Werror])
+ GLIBCXX_ENABLE(werror,$1,,[turns on -Werror])
+ AC_MSG_RESULT($enable_werror)
+ GLIBCXX_CONDITIONAL(ENABLE_WERROR, test $enable_werror = yes)
+])
+
+
# Macros from the top-level gcc directory.
+m4_include([../config/gc++filt.m4])
m4_include([../config/tls.m4])
-
OSDN Git Service
