-
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 libsupc++ python src doc po testsuite])
+ m4_define([glibcxx_SUBDIRS],[include libsupc++ src src/c++98 src/c++11 src/filesystem doc po testsuite python])
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]))
+ [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.
## (Right now, this only matters for enable_wchar_t, but nothing prevents
## other macros from doing the same. This should be automated.) -pme
- # Check for C library flavor 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__
])
+dnl
+dnl Check if the assembler used supports disabling generation of hardware
+dnl capabilities. This is only supported by Sun as at the moment.
+dnl
+dnl Defines:
+dnl HWCAP_FLAGS='-Wa,-nH' if possible.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_ASSEMBLER_HWCAP], [
+ test -z "$HWCAP_FLAGS" && HWCAP_FLAGS=''
+
+ # Restrict the test to Solaris, other assemblers (e.g. AIX as) have -nH
+ # with a different meaning.
+ case ${target_os} in
+ solaris2*)
+ ac_save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -Wa,-nH"
+
+ AC_MSG_CHECKING([for as that supports -Wa,-nH])
+ AC_TRY_COMPILE([], [return 0;], [ac_hwcap_flags=yes],[ac_hwcap_flags=no])
+ if test "$ac_hwcap_flags" = "yes"; then
+ HWCAP_FLAGS="-Wa,-nH $HWCAP_FLAGS"
+ fi
+ AC_MSG_RESULT($ac_hwcap_flags)
+
+ CFLAGS="$ac_save_CFLAGS"
+ ;;
+ esac
+
+ AC_SUBST(HWCAP_FLAGS)
+])
+
+
dnl
dnl If GNU ld is in use, check to see if tricky linker opts can be used. If
dnl the native linker is in use, all variables will be defined to something
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}"
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
+ if test -d /usr/share/xml/docbook/stylesheet/nwalsh5/current; then
+ glibcxx_local_stylesheets=yes
+ XSL_STYLE_DIR=/usr/share/xml/docbook/stylesheet/nwalsh5/current
+ 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 (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, permit a|b|c)
dnl (FEATURE, DEFAULT, HELP-ARG, HELP-STRING, SHELL-CODE-HANDLER)
dnl
-dnl See docs/html/17_intro/configury.html#enable for documentation.
+dnl See manual/appendix_porting.html#appendix.porting.build_hacking for
+dnl documentation.
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 $1) ;;
- dnl Idea for future: generate a URL pointing to
- dnl "onlinedocs/configopts.html#whatever"
+ dnl Idea for future: generate a URL pointing to
+ dnl "onlinedocs/configopts.html#whatever"
esac
]],
[^$],
# 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
+ # Long term, -std=c++0x could be even better, could manage to explicitly
# request C99 facilities to the underlying C headers.
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -std=c++98"
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);
- }],
- [snprintf("12", 0, "%i");],
+ snprintf(fmt, 0, "%i");
+ }], [],
[glibcxx_cv_c99_stdio=yes], [glibcxx_cv_c99_stdio=no])
])
AC_MSG_RESULT($glibcxx_cv_c99_stdio)
glibcxx_cv_c99_wchar=no;
if test x"$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, 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 implementation of 20.11.7 [time.clock], and 30.3.2 [thread.thread.this]
+dnl in the C++11 standard.
dnl
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 nanosleep and sched_yield in libc and libposix4 and, if needed,
+dnl links in 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 also searches (and, if needed, links) librt. Note that this is
+dnl not always desirable because, in glibc 2.16 and earlier, for
+dnl example, in turn it triggers the linking of libpthread too,
+dnl which activates locking,
dnl a large overhead for single-thread programs.
dnl --enable-libstdcxx-time=no
dnl --disable-libstdcxx-time
dnl disables the checks completely
dnl
+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, nanosleep and sched_yield])
- GLIBCXX_ENABLE(libstdcxx-time,$1,[=KIND],
+ GLIBCXX_ENABLE(libstdcxx-time,auto,[[[=KIND]]],
[use KIND for check type],
[permit yes|no|rt])
ac_has_clock_monotonic=no
ac_has_clock_realtime=no
- AC_MSG_RESULT($enable_libstdcxx_time)
+ ac_has_nanosleep=no
+ ac_has_sched_yield=no
- if test x"$enable_libstdcxx_time" != x"no"; then
+ if test x"$enable_libstdcxx_time" = x"auto"; then
+
+ case "${target_os}" in
+ cygwin*)
+ ac_has_nanosleep=yes
+ ;;
+ darwin*)
+ ac_has_nanosleep=yes
+ ac_has_sched_yield=yes
+ ;;
+ gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
+ AC_MSG_CHECKING([for at least GNU libc 2.17])
+ AC_TRY_COMPILE(
+ [#include <features.h>],
+ [
+ #if ! __GLIBC_PREREQ(2, 17)
+ #error
+ #endif
+ ],
+ [glibcxx_glibc217=yes], [glibcxx_glibc217=no])
+ AC_MSG_RESULT($glibcxx_glibc217)
+
+ if test x"$glibcxx_glibc217" = x"yes"; then
+ ac_has_clock_monotonic=yes
+ ac_has_clock_realtime=yes
+ fi
+ ac_has_nanosleep=yes
+ ac_has_sched_yield=yes
+ ;;
+ freebsd*|netbsd*|dragonfly*)
+ ac_has_clock_monotonic=yes
+ ac_has_clock_realtime=yes
+ ac_has_nanosleep=yes
+ ac_has_sched_yield=yes
+ ;;
+ openbsd*)
+ ac_has_clock_monotonic=yes
+ ac_has_clock_realtime=yes
+ ac_has_nanosleep=yes
+ ;;
+ solaris*)
+ GLIBCXX_LIBS="$GLIBCXX_LIBS -lrt"
+ ac_has_clock_monotonic=yes
+ ac_has_clock_realtime=yes
+ ac_has_nanosleep=yes
+ ac_has_sched_yield=yes
+ ;;
+ esac
+
+ elif test x"$enable_libstdcxx_time" != x"no"; then
if test x"$enable_libstdcxx_time" = x"rt"; then
AC_SEARCH_LIBS(clock_gettime, [rt posix4])
case "$ac_cv_search_sched_yield" in
-lposix4*)
GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_sched_yield"
- AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1,
- [ Defined if sched_yield is available. ])
+ ac_has_sched_yield=yes
;;
-lrt*)
if test x"$enable_libstdcxx_time" = x"rt"; then
- GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_sched_yield"
- AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1,
- [ Defined if sched_yield is available. ])
+ GLIBCXX_LIBS="$GLIBCXX_LIBS $ac_cv_search_sched_yield"
+ ac_has_sched_yield=yes
fi
;;
*)
- AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1,
- [ Defined if sched_yield is available. ])
+ ac_has_sched_yield=yes
;;
esac
if test x"$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($ac_has_clock_realtime)
AC_MSG_CHECKING([for nanosleep])
AC_TRY_LINK(
- [#include <unistd.h>
- #include <time.h>
- ],
- [#if _POSIX_TIMERS > 0
- timespec tp;
- #endif
- nanosleep(&tp, 0);
- ], [ac_has_nanosleep=yes], [ac_has_nanosleep=no])
+ [#include <unistd.h>
+ #include <time.h>
+ ],
+ [#if _POSIX_TIMERS > 0
+ timespec tp;
+ #endif
+ nanosleep(&tp, 0);
+ ], [ac_has_nanosleep=yes], [ac_has_nanosleep=no])
AC_MSG_RESULT($ac_has_nanosleep)
fi
fi
+ if test x"$ac_has_clock_monotonic" != x"yes"; then
+ case ${target_os} in
+ linux*)
+ AC_MSG_CHECKING([for clock_gettime syscall])
+ AC_TRY_COMPILE(
+ [#include <unistd.h>
+ #include <time.h>
+ #include <sys/syscall.h>
+ ],
+ [#if _POSIX_TIMERS > 0 && defined(_POSIX_MONOTONIC_CLOCK)
+ timespec tp;
+ #endif
+ syscall(SYS_clock_gettime, CLOCK_MONOTONIC, &tp);
+ syscall(SYS_clock_gettime, CLOCK_REALTIME, &tp);
+ ], [ac_has_clock_monotonic_syscall=yes], [ac_has_clock_monotonic_syscall=no])
+ AC_MSG_RESULT($ac_has_clock_monotonic_syscall)
+ if test x"$ac_has_clock_monotonic_syscall" = x"yes"; then
+ AC_DEFINE(_GLIBCXX_USE_CLOCK_GETTIME_SYSCALL, 1,
+ [ Defined if clock_gettime syscall has monotonic and realtime clock support. ])
+ ac_has_clock_monotonic=yes
+ ac_has_clock_realtime=yes
+ fi;;
+ esac
+ fi
+
if test x"$ac_has_clock_monotonic" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_CLOCK_MONOTONIC, 1,
[ Defined if clock_gettime has monotonic clock support. ])
[ Defined if clock_gettime has realtime clock support. ])
fi
+ if test x"$ac_has_sched_yield" = x"yes"; then
+ AC_DEFINE(_GLIBCXX_USE_SCHED_YIELD, 1,
+ [ Defined if sched_yield is available. ])
+ fi
+
if test x"$ac_has_nanosleep" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_NANOSLEEP, 1,
[ Defined if nanosleep is available. ])
+ else
+ AC_MSG_CHECKING([for sleep])
+ AC_TRY_COMPILE([#include <unistd.h>],
+ [sleep(1)],
+ [ac_has_sleep=yes],[ac_has_sleep=no])
+ if test x"$ac_has_sleep" = x"yes"; then
+ AC_DEFINE(HAVE_SLEEP,1, [Defined if sleep exists.])
+ fi
+ AC_MSG_RESULT($ac_has_sleep)
+ AC_MSG_CHECKING([for usleep])
+ AC_TRY_COMPILE([#include <unistd.h>],
+ [sleep(1);
+ usleep(100);],
+ [ac_has_usleep=yes],[ac_has_usleep=no])
+ if test x"$ac_has_usleep" = x"yes"; then
+ AC_DEFINE(HAVE_USLEEP,1, [Defined if usleep exists.])
+ fi
+ AC_MSG_RESULT($ac_has_usleep)
+ fi
+
+ if test x"$ac_has_nanosleep$ac_has_sleep" = x"nono"; then
+ AC_MSG_CHECKING([for Sleep])
+ AC_TRY_COMPILE([#include <windows.h>],
+ [Sleep(1)],
+ [ac_has_win32_sleep=yes],[ac_has_win32_sleep=no])
+ if test x"$ac_has_win32_sleep" = x"yes"; then
+ AC_DEFINE(HAVE_WIN32_SLEEP,1, [Defined if Sleep exists.])
+ fi
+ AC_MSG_RESULT($ac_has_win32_sleep)
fi
AC_SUBST(GLIBCXX_LIBS)
])
dnl
-dnl Check for gettimeofday, used in the implementation of 20.8.5
-dnl [time.clock] in the current C++0x working draft.
+dnl Check for gettimeofday, used in the implementation of 20.11.7
+dnl [time.clock] in the C++11 standard.
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);
- 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);
+ [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
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"$ac_c99_inttypes_tr1" = x"yes"; then
AC_DEFINE(_GLIBCXX_USE_C99_INTTYPES_TR1, 1,
- [Define if C99 functions in <inttypes.h> should be imported in
- <tr1/cinttypes> in namespace std::tr1.])
+ [Define if C99 functions in <inttypes.h> should be imported in
+ <tr1/cinttypes> in namespace std::tr1.])
fi
- # Check for the existence of whcar_t <inttypes.h> functions (NB: doesn't
+ # Check for the existence of wchar_t <inttypes.h> functions (NB: doesn't
# make sense if the glibcxx_cv_c99_stdint_tr1 check fails, per C99, 7.8/1).
ac_c99_inttypes_wchar_t_tr1=no;
if test x"$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;
+ [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],
+ 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
+ [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.
+ # 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
])
AC_MSG_CHECKING([for "/dev/random" and "/dev/urandom" for TR1 random_device])
AC_CACHE_VAL(glibcxx_cv_random_tr1, [
if test -r /dev/random && test -r /dev/urandom; then
- glibcxx_cv_random_tr1=yes;
+ ## For MSys environment the test above is detect as false-positive
+ ## on mingw-targets. So disable it explicit for them.
+ case ${target_os} in
+ *mingw*) glibcxx_cv_random_tr1=no ;;
+ *) glibcxx_cv_random_tr1=yes ;;
+ esac
else
glibcxx_cv_random_tr1=no;
fi
if test x"$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
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])])
+ [#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.])
+ [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])])
+ [#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.])
+ [Define to the value of the SEEK_CUR integer constant.])
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])])
+ [#include <stdio.h>],
+ [AC_MSG_ERROR([computing SEEK_END failed])])
])
AC_DEFINE_UNQUOTED(_GLIBCXX_STDIO_SEEK_END, $glibcxx_cv_stdio_seek_end,
- [Define to the value of the SEEK_END integer constant.])
+ [Define to the value of the SEEK_END integer constant.])
+])
+
+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 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)
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 ${target_os} in
linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
- enable_clocale_flag=gnu
- ;;
+ enable_clocale_flag=gnu
+ ;;
darwin* | freebsd*)
- enable_clocale_flag=darwin
+ enable_clocale_flag=darwin
+ ;;
+ dragonfly*)
+ enable_clocale_flag=dragonfly
+ ;;
+ openbsd*)
+ enable_clocale_flag=newlib
;;
*)
- enable_clocale_flag=generic
- ;;
+ if test x"$with_newlib" = x"yes"; then
+ enable_clocale_flag=newlib
+ else
+ enable_clocale_flag=generic
+ fi
+ ;;
esac
fi
], enable_clocale_flag=gnu, enable_clocale_flag=generic)
# 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
;;
-
+
+ dragonfly)
+ AC_MSG_RESULT(dragonfly)
+
+ CLOCALE_H=config/locale/generic/c_locale.h
+ CLOCALE_CC=config/locale/dragonfly/c_locale.cc
+ CCODECVT_CC=config/locale/generic/codecvt_members.cc
+ CCOLLATE_CC=config/locale/generic/collate_members.cc
+ CCTYPE_CC=config/locale/dragonfly/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
+ ;;
+
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 Use vtable verification.
+dnl
+dnl --enable-vtable-verify defines _GLIBCXX_VTABLE_VERIFY to 1
+dnl --disable-vtable-verify defines _GLIBCXX_VTABLE_VERIFY to 0
+
+dnl + Usage: GLIBCXX_ENABLE_VTABLE_VERIFY[(DEFAULT)]
+dnl Where DEFAULT is `yes' or `no'.
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_VTABLE_VERIFY], [
+
+ GLIBCXX_ENABLE(vtable-verify,$1,,[enable vtable verify])
+
+ AC_MSG_CHECKING([for vtable verify support])
+ AC_MSG_RESULT([$enable_vtable_verify])
+
+ vtv_cygmin=no
+ if test $enable_vtable_verify = yes; then
+ case ${target_os} in
+ cygwin*|mingw32*)
+ VTV_CXXFLAGS="-fvtable-verify=std -Wl,-lvtv,-u_vtable_map_vars_start,-u_vtable_map_vars_end"
+ vtv_cygmin=yes
+ ;;
+ *)
+ VTV_CXXFLAGS="-fvtable-verify=std -Wl,-u_vtable_map_vars_start,-u_vtable_map_vars_end"
+ ;;
+ esac
+ VTV_PCH_CXXFLAGS="-fvtable-verify=std"
+ VTV_CXXLINKFLAGS="-L${toplevel_builddir}/libvtv/.libs -Wl,--rpath -Wl,${toplevel_builddir}/libvtv/.libs"
+ else
+ VTV_CXXFLAGS=
+ VTV_PCH_CXXFLAGS=
+ VTV_CXXLINKFLAGS=
fi
+
+ AC_SUBST(VTV_CXXFLAGS)
+ AC_SUBST(VTV_PCH_CXXFLAGS)
+ AC_SUBST(VTV_CXXLINKFLAGS)
+ AM_CONDITIONAL(VTV_CYGMIN, test x$vtv_cygmin = xyes)
+ GLIBCXX_CONDITIONAL(ENABLE_VTABLE_VERIFY, test $enable_vtable_verify = yes)
])
dnl
AC_MSG_CHECKING([for parallel mode support])
AC_MSG_RESULT([$enable_parallel])
- GLIBCXX_CONDITIONAL(ENABLE_PARALLEL, test $enable_parallel = yes)
])
dnl
AC_DEFUN([GLIBCXX_ENABLE_CSTDIO], [
AC_MSG_CHECKING([for underlying I/O to use])
- GLIBCXX_ENABLE(cstdio,stdio,[=PACKAGE],
+ GLIBCXX_ENABLE(cstdio,stdio,[[[=PACKAGE]]],
[use target-specific I/O package], [permit stdio])
# Now that libio has been removed, you can have any color you want as long
if test -n "$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 "$host" in
- arm*-*-symbianelf*)
+ arm*-*-symbianelf*)
enable_hosted_libstdcxx=no
;;
- *)
+ *)
enable_hosted_libstdcxx=yes
;;
esac])
])
+dnl
+dnl Check if the user wants a non-verbose library implementation.
+dnl
+dnl --disable-libstdcxx-verbose will turn off descriptive messages to
+dnl standard error on termination.
+dnl
+dnl Defines:
+dnl _GLIBCXX_VERBOSE (always defined, either to 1 or 0)
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_VERBOSE], [
+ AC_ARG_ENABLE([libstdcxx-verbose],
+ AC_HELP_STRING([--disable-libstdcxx-verbose],
+ [disable termination messages to standard error]),,
+ [enable_libstdcxx_verbose=yes])
+ if test x"$enable_libstdcxx_verbose" = xyes; then
+ verbose_define=1
+ else
+ AC_MSG_NOTICE([verbose termination messages are disabled])
+ verbose_define=0
+ fi
+ AC_DEFINE_UNQUOTED(_GLIBCXX_VERBOSE, $verbose_define,
+ [Define to 1 if a verbose library is built, or 0 otherwise.])
+])
+
+
dnl
dnl Check for template specializations for the 'long long' type.
dnl The result determines only whether 'long long' I/O is enabled; things
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])
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
# 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 use a link test, see CHECK_SYNC_FETCH_AND_ADD.
dnl
-dnl Defines:
-dnl _GLIBCXX_ATOMIC_BUILTINS_1
-dnl _GLIBCXX_ATOMIC_BUILTINS_2
-dnl _GLIBCXX_ATOMIC_BUILTINS_4
-dnl _GLIBCXX_ATOMIC_BUILTINS_8
-dnl
AC_DEFUN([GLIBCXX_ENABLE_ATOMIC_BUILTINS], [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
case "$host" in
*-*-linux* | *-*-uclinux* | *-*-kfreebsd*-gnu | *-*-gnu*)
atomic_builtins_link_tests=yes
- ;;
+ ;;
esac
fi
[typedef bool 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);
+ ],
[glibcxx_cv_atomic_bool=yes],
[glibcxx_cv_atomic_bool=no])
- ])
- if test $glibcxx_cv_atomic_bool = yes; then
- AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS_1, 1,
- [Define if builtin atomic operations for bool are supported on this host.])
- fi
+ ])
AC_MSG_RESULT($glibcxx_cv_atomic_bool)
AC_MSG_CHECKING([for atomic builtins for short])
[typedef short 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);
+ ],
[glibcxx_cv_atomic_short=yes],
[glibcxx_cv_atomic_short=no])
- ])
- if test $glibcxx_cv_atomic_short = yes; then
- AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS_2, 1,
- [Define if builtin atomic operations for short are supported on this host.])
- fi
+ ])
AC_MSG_RESULT($glibcxx_cv_atomic_short)
AC_MSG_CHECKING([for atomic builtins for 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);
+ ],
[glibcxx_cv_atomic_int=yes],
[glibcxx_cv_atomic_int=no])
- ])
- if test $glibcxx_cv_atomic_int = yes; then
- AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS_4, 1,
- [Define if builtin atomic operations for int are supported on this host.])
- fi
+ ])
AC_MSG_RESULT($glibcxx_cv_atomic_int)
AC_MSG_CHECKING([for atomic builtins for long long])
[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);
+ ],
[glibcxx_cv_atomic_long_long=yes],
[glibcxx_cv_atomic_long_long=no])
- ])
- if test $glibcxx_cv_atomic_long_long = yes; then
- AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS_8, 1,
- [Define if builtin atomic operations for long long are supported on this host.])
- fi
+ ])
AC_MSG_RESULT($glibcxx_cv_atomic_long_long)
else
typedef bool 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])
if AC_TRY_EVAL(ac_compile); then
- if grep __sync_ conftest.s >/dev/null 2>&1 ; then
- glibcxx_cv_atomic_bool=no
+ if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+ glibcxx_cv_atomic_bool=no
else
- AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS_1, 1,
- [Define if builtin atomic operations for bool are supported on this host.])
- glibcxx_cv_atomic_bool=yes
+ glibcxx_cv_atomic_bool=yes
fi
fi
AC_MSG_RESULT($glibcxx_cv_atomic_bool)
typedef short atomic_type;
atomic_type c1;
atomic_type c2;
- const atomic_type c3(0);
- __sync_fetch_and_add(&c1, c2);
- __sync_val_compare_and_swap(&c1, c3, c2);
- __sync_lock_test_and_set(&c1, c3);
- __sync_lock_release(&c1);
- __sync_synchronize();
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
return 0;
}
EOF
AC_MSG_CHECKING([for atomic builtins for short])
if AC_TRY_EVAL(ac_compile); then
- if grep __sync_ conftest.s >/dev/null 2>&1 ; then
- glibcxx_cv_atomic_short=no
+ if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+ glibcxx_cv_atomic_short=no
else
- AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS_2, 1,
- [Define if builtin atomic operations for short are supported on this host.])
- glibcxx_cv_atomic_short=yes
+ glibcxx_cv_atomic_short=yes
fi
fi
AC_MSG_RESULT($glibcxx_cv_atomic_short)
[#]line __oline__ "configure"
int main()
{
- // NB: _Atomic_word not necessarily int.
+ // 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
- glibcxx_cv_atomic_int=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.])
- glibcxx_cv_atomic_int=yes
+ glibcxx_cv_atomic_int=yes
fi
fi
AC_MSG_RESULT($glibcxx_cv_atomic_int)
typedef long long atomic_type;
atomic_type c1;
atomic_type c2;
- const atomic_type c3(0);
- __sync_fetch_and_add(&c1, c2);
- __sync_val_compare_and_swap(&c1, c3, c2);
- __sync_lock_test_and_set(&c1, c3);
- __sync_lock_release(&c1);
- __sync_synchronize();
+ atomic_type c3(0);
+ __atomic_fetch_add(&c1, c2, __ATOMIC_RELAXED);
+ __atomic_compare_exchange_n(&c1, &c2, c3, true, __ATOMIC_ACQ_REL,
+ __ATOMIC_RELAXED);
+ __atomic_test_and_set(&c1, __ATOMIC_RELAXED);
+ __atomic_load_n(&c1, __ATOMIC_RELAXED);
+
return 0;
}
EOF
AC_MSG_CHECKING([for atomic builtins for long long])
if AC_TRY_EVAL(ac_compile); then
- if grep __sync_ conftest.s >/dev/null 2>&1 ; then
- glibcxx_cv_atomic_long_long=no
+ if grep __atomic_ conftest.s >/dev/null 2>&1 ; then
+ glibcxx_cv_atomic_long_long=no
else
- AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS_8, 1,
- [Define if builtin atomic operations for long long are supported on this host.])
- glibcxx_cv_atomic_long_long=yes
+ glibcxx_cv_atomic_long_long=yes
fi
fi
AC_MSG_RESULT($glibcxx_cv_atomic_long_long)
CXXFLAGS="$old_CXXFLAGS"
AC_LANG_RESTORE
- # Set atomicity_dir to builtins if either of above tests pass.
- if test $glibcxx_cv_atomic_int = yes || test $glibcxx_cv_atomic_bool = 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 $glibcxx_cv_atomic_int = yes; then
+ AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS, 1,
+ [Define if the compiler supports C++11 atomics.])
atomicity_dir=cpu/generic/atomicity_builtins
fi
atomicity_dir=cpu/generic/atomicity_mutex
AC_MSG_WARN([No native atomic operations are provided for this platform.])
if test "x$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.])
+ 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.])
- fi
- fi
-
-])
-
-
-dnl
-dnl Check for exception handling support. If an explicit enable/disable
-dnl sjlj exceptions is given, we don't have to detect. Otherwise the
-dnl target may or may not support call frame exceptions.
-dnl
-dnl --enable-sjlj-exceptions forces the use of builtin setjmp.
-dnl --disable-sjlj-exceptions forces the use of call frame unwinding.
-dnl Neither one forces an attempt at detection.
-dnl
-dnl Defines:
-dnl _GLIBCXX_SJLJ_EXCEPTIONS if the compiler is configured for it
-dnl
-AC_DEFUN([GLIBCXX_ENABLE_SJLJ_EXCEPTIONS], [
- AC_MSG_CHECKING([for exception model to use])
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- GLIBCXX_ENABLE(sjlj-exceptions,auto,,
- [force use of builtin_setjmp for exceptions],
- [permit yes|no|auto])
-
- if test $enable_sjlj_exceptions = auto; then
- # Botheration. Now we've got to detect the exception model. Link tests
- # against libgcc.a are problematic since we've not been given proper -L
- # bits for single-tree newlib and libgloss.
- #
- # Fake what AC_TRY_COMPILE does. XXX Look at redoing this new-style.
- cat > conftest.$ac_ext << EOF
-[#]line __oline__ "configure"
-struct S { ~S(); };
-void bar();
-void foo()
-{
- S s;
- bar();
-}
-EOF
- old_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS=-S
- if AC_TRY_EVAL(ac_compile); then
- if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=yes
- elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=no
- elif grep __cxa_end_cleanup conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=no
+ AC_MSG_WARN([They will be faked using a mutex.])
+ AC_MSG_WARN([Performance of certain classes will degrade as a result.])
fi
- fi
- CXXFLAGS="$old_CXXFLAGS"
- rm -f conftest*
fi
- # This is a tad weird, for hysterical raisins. We have to map
- # enable/disable to two different models.
- case $enable_sjlj_exceptions in
- yes)
- AC_DEFINE(_GLIBCXX_SJLJ_EXCEPTIONS, 1,
- [Define if the compiler is configured for setjmp/longjmp exceptions.])
- ac_exception_model_name=sjlj
- ;;
- no)
- ac_exception_model_name="call frame"
- ;;
- *)
- AC_MSG_ERROR([unable to detect exception model])
- ;;
- esac
- AC_LANG_RESTORE
- AC_MSG_RESULT($ac_exception_model_name)
])
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|sun])
else
if test $with_gnu_ld = yes ; then
case ${target_os} in
- hpux*)
- enable_symvers=no ;;
- *)
- enable_symvers=gnu ;;
+ hpux*)
+ enable_symvers=no ;;
+ *)
+ enable_symvers=gnu ;;
esac
else
case ${target_os} in
- darwin*)
+ darwin*)
enable_symvers=darwin ;;
# Sun symbol versioning exists since Solaris 2.5.
solaris2.[[5-9]]* | solaris2.1[[0-9]]*)
enable_symvers=sun
fi
;;
- *)
- enable_symvers=no ;;
+ *)
+ enable_symvers=no ;;
esac
fi
fi
fi
# Check to see if 'gnu' can win.
-if test $enable_symvers = gnu ||
- test $enable_symvers = gnu-versioned-namespace ||
+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])
fi
fi
-# Everything parsed; figure out what file to use.
+# For libtool versioning info, format is CURRENT:REVISION:AGE
+libtool_VERSION=6:22:0
+
+# 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.])
+ AC_DEFINE(_GLIBCXX_SYMVER_SUN, 1,
+ [Define to use Sun versioning in the shared library.])
;;
esac
# The Solaris 2 runtime linker doesn't support the GNU extension of
# binding the same symbol to different versions
solaris2*)
- symvers_renaming=no ;;
+ ;;
# 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.])
- symvers_renaming=yes ;;
+ [Define to 1 if the target runtime linker supports binding the same symbol to different versions.])
+ ;;
esac
fi
-GLIBCXX_CONDITIONAL(ENABLE_SYMVERS_SOL2, test $symvers_renaming = no)
# Now, set up compatibility support, if any.
# In addition, need this to deal with std::size_t mangling in
AC_MSG_CHECKING([for size_t as unsigned int])
ac_save_CFLAGS="$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 "$glibcxx_ptrdiff_t_is_i" = yes; then
AC_DEFINE(_GLIBCXX_PTRDIFF_T_IS_INT, 1, [Define if ptrdiff_t is int.])
dnl add a relative path so that -I- is supported properly.
dnl
dnl Substs:
-dnl glibcxx_thread_h
-dnl
-dnl Defines:
-dnl HAVE_GTHR_DEFAULT
+dnl thread_header
dnl
AC_DEFUN([GLIBCXX_ENABLE_THREADS], [
AC_MSG_CHECKING([for thread model used by GCC])
target_thread_file=`$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 $gthread_file >/dev/null 2>&1 ; then
- enable_thread=yes
- else
- enable_thread=no
- fi
-
- AC_SUBST(glibcxx_thread_h)
+ GCC_AC_THREAD_HEADER([$target_thread_file])
])
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([for gthreads library])
+ AC_MSG_CHECKING([whether it can be safely assumed that mutex_timedlock is available])
- AC_TRY_COMPILE([#include "gthr.h"],
+ AC_TRY_COMPILE([#include <unistd.h>],
[
- #ifndef __GTHREADS_CXX0X
+ // 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])
- // In case of POSIX threads check _POSIX_TIMEOUTS too.
- #if (defined(_PTHREADS) \
- && (!defined(_POSIX_TIMEOUTS) || _POSIX_TIMEOUTS <= 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])
+ 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.])
+
+ # Also check for pthread_rwlock_t for std::shared_timed_mutex in C++14
+ AC_CHECK_TYPE([pthread_rwlock_t],
+ [AC_DEFINE([_GLIBCXX_USE_PTHREAD_RWLOCK_T], 1,
+ [Define if POSIX read/write locks are available in <gthr.h>.])],
+ [],
+ [#include "gthr.h"])
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 $ac_cv_val_LC_MESSAGES = yes; then
- AC_DEFINE(HAVE_LC_MESSAGES, 1,
- [Define if LC_MESSAGES is available in <locale.h>.])
+ AC_DEFINE(HAVE_LC_MESSAGES, 1,
+ [Define if LC_MESSAGES is available in <locale.h>.])
fi
])
])
+dnl
+dnl Check whether rdrand is supported in the assembler.
+AC_DEFUN([GLIBCXX_CHECK_X86_RDRAND], [
+ AC_MSG_CHECKING([for rdrand support in assembler])
+ AC_CACHE_VAL(ac_cv_x86_rdrand, [
+ ac_cv_x86_rdrand=no
+ case "$target" in
+ i?86-*-* | \
+ x86_64-*-*)
+ AC_TRY_COMPILE(, [asm("rdrand %eax");],
+ [ac_cv_x86_rdrand=yes], [ac_cv_x86_rdrand=no])
+ esac
+ ])
+ if test $ac_cv_x86_rdrand = yes; then
+ AC_DEFINE(_GLIBCXX_X86_RDRAND, 1,
+ [ Defined if as can handle rdrand. ])
+ fi
+ AC_MSG_RESULT($ac_cv_x86_rdrand)
+])
+
+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 $enable_werror = yes)
+])
+
+dnl
+dnl Check whether obsolescent tmpnam is available in <stdio.h>,
+dnl and define _GLIBCXX_USE_TMPNAM.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_TMPNAM], [dnl
+dnl
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+dnl
+ AC_MSG_CHECKING([for tmpnam])
+ AC_CACHE_VAL(glibcxx_cv_TMPNAM, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <stdio.h>],
+ [char *tmp = tmpnam(NULL);],
+ [glibcxx_cv_TMPNAM=yes],
+ [glibcxx_cv_TMPNAM=no])
+ ])
+ if test $glibcxx_cv_TMPNAM = yes; then
+ AC_DEFINE(_GLIBCXX_USE_TMPNAM, 1, [Define if obsolescent tmpnam is available in <stdio.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_TMPNAM)
+dnl
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+])
+
+dnl
+dnl Check to see if sys/sdt.h exists and that it is suitable for use.
+dnl Some versions of sdt.h were not compatible with C++11.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_SDT_H], [
+ AC_MSG_CHECKING([for suitable sys/sdt.h])
+ # Note that this test has to be run with the C language.
+ # Otherwise, sdt.h will try to include some headers from
+ # libstdc++ itself.
+ AC_LANG_SAVE
+ AC_LANG_C
+ AC_CACHE_VAL(glibcxx_cv_sys_sdt_h, [
+ # Because we have to run the test in C, we use grep rather
+ # than the compiler to check for the bug. The bug is that
+ # were strings without trailing whitespace, causing g++
+ # to look for operator"". The pattern searches for the fixed
+ # output.
+ AC_EGREP_CPP([ \",\" ], [
+ #include <sys/sdt.h>
+ int f() { STAP_PROBE(hi, bob); }
+ ], [glibcxx_cv_sys_sdt_h=yes], [glibcxx_cv_sys_sdt_h=no])
+ ])
+ AC_LANG_RESTORE
+ if test $glibcxx_cv_sys_sdt_h = yes; then
+ AC_DEFINE(HAVE_SYS_SDT_H, 1,
+ [Define to 1 if you have a suitable <sys/sdt.h> header file])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_sys_sdt_h)
+])
+
+dnl
+dnl Control whether the library should define symbols for old and new ABIs.
+dnl This affects definitions of strings, stringstreams and locale facets.
+dnl
+dnl --disable-libstdcxx-dual-abi will use old ABI for all types.
+dnl
+dnl Defines:
+dnl _GLIBCXX_USE_DUAL_ABI (always defined, either to 1 or 0)
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI], [
+ GLIBCXX_ENABLE(libstdcxx-dual-abi,$1,,[support two versions of std::string])
+ if test x$enable_symvers = xgnu-versioned-namespace; then
+ # gnu-versioned-namespace is incompatible with the dual ABI.
+ enable_libstdcxx_dual_abi="no"
+ fi
+ if test x"$enable_libstdcxx_dual_abi" != xyes; then
+ AC_MSG_NOTICE([dual ABI is disabled])
+ default_libstdcxx_abi="c++98"
+ fi
+ GLIBCXX_CONDITIONAL(ENABLE_DUAL_ABI, test $enable_libstdcxx_dual_abi = yes)
+])
+
+dnl
+dnl Check to see which ABI should be enabled by default.
+dnl
+dnl --with-default-libstdcxx-abi={c++98,c++11}
+dnl
+dnl Defines:
+dnl _GLIBCXX_USE_CXX11_ABI (always defined, either to 1 or 0)
+dnl
+AC_DEFUN([GLIBCXX_DEFAULT_ABI], [
+ if test x$enable_libstdcxx_dual_abi = xyes; then
+ AC_MSG_CHECKING([for default std::string ABI to use])
+ AC_ARG_WITH([default-libstdcxx-abi],
+ AS_HELP_STRING([--with-default-libstdcxx-abi],
+ [set the std::string ABI to use by default]),
+ [case "$withval" in
+ c++98|gnu++98|c++03|gnu++03) default_libstdcxx_abi="c++98" ;;
+ c++1?|gnu++1?) default_libstdcxx_abi="c++11" ;;
+ *) AC_MSG_ERROR([Invalid argument for --with-default-libstdcxx-abi]) ;;
+ esac],
+ [default_libstdcxx_abi="c++11"])
+ AC_MSG_RESULT(${default_libstdcxx_abi})
+ fi
+ if test $default_libstdcxx_abi = "c++11"; then
+ glibcxx_cxx11_abi=1
+ glibcxx_cxx98_abi=0
+ else
+ glibcxx_cxx11_abi=0
+ glibcxx_cxx98_abi=1
+ fi
+ AC_SUBST(glibcxx_cxx98_abi)
+ GLIBCXX_CONDITIONAL(ENABLE_CXX11_ABI, test $glibcxx_cxx11_abi = 1)
+])
+
+dnl
+dnl Check to see whether to build libstdc++fs.a
+dnl
+dnl --enable-libstdcxx-filesystem-ts
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_FILESYSTEM_TS], [
+ GLIBCXX_ENABLE(libstdcxx-filesystem-ts,auto,,
+ [turns on ISO/IEC TS 18822 support],
+ [permit yes|no|auto])
+
+ AC_MSG_CHECKING([whether to build Filesystem TS support])
+ if test x"$ac_cv_header_dirent_h" != x"yes"; then
+ enable_libstdcxx_filesystem_ts=no
+ fi
+ if test x"$enable_libstdcxx_filesystem_ts" = x"auto"; then
+ case "${target_os}" in
+ freebsd*|netbsd*|openbsd*|dragonfly*|darwin*)
+ enable_libstdcxx_filesystem_ts=yes
+ ;;
+ gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
+ enable_libstdcxx_filesystem_ts=yes
+ ;;
+ solaris*)
+ enable_libstdcxx_filesystem_ts=yes
+ ;;
+ *)
+ enable_libstdcxx_filesystem_ts=no
+ ;;
+ esac
+ fi
+ AC_MSG_RESULT($enable_libstdcxx_filesystem_ts)
+ GLIBCXX_CONDITIONAL(ENABLE_FILESYSTEM_TS, test $enable_libstdcxx_filesystem_ts = yes)
+])
+
+dnl
+dnl Check whether the library calls required by the Filesystem TS are present
+dnl and define _GLIBCXX_USE_REALPATH and _GLIBCXX_USE_UTIMENSAT.
+dnl
+AC_DEFUN([GLIBCXX_CHECK_FILESYSTEM_DEPS], [dnl
+dnl
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$CXXFLAGS"
+ CXXFLAGS="$CXXFLAGS -fno-exceptions"
+dnl
+ AC_MSG_CHECKING([for struct dirent.d_type])
+ AC_CACHE_VAL(glibcxx_cv_dirent_d_type, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <dirent.h>],
+ [
+ struct dirent d;
+ if (sizeof d.d_type) return 0;
+ ],
+ [glibcxx_cv_dirent_d_type=yes],
+ [glibcxx_cv_dirent_d_type=no])
+ ])
+ if test $glibcxx_cv_dirent_d_type = yes; then
+ AC_DEFINE(_GLIBCXX_HAVE_STRUCT_DIRENT_D_TYPE, 1, [Define to 1 if `d_type' is a member of `struct dirent'.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_dirent_d_type)
+dnl
+ AC_MSG_CHECKING([for realpath])
+ AC_CACHE_VAL(glibcxx_cv_realpath, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <stdlib.h>],
+ [char *tmp = realpath((const char*)NULL, (char*)NULL);],
+ [glibcxx_cv_realpath=yes],
+ [glibcxx_cv_realpath=no])
+ ])
+ if test $glibcxx_cv_realpath = yes; then
+ AC_DEFINE(_GLIBCXX_USE_REALPATH, 1, [Define if realpath is available in <stdlib.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_realpath)
+dnl
+ AC_MSG_CHECKING([for utimensat])
+ AC_CACHE_VAL(glibcxx_cv_utimensat, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [
+ #include <fcntl.h>
+ #include <sys/stat.h>
+ ],
+ [
+ struct timespec ts[2] = { { 0, UTIME_OMIT }, { 1, 1 } };
+ int i = utimensat(AT_FDCWD, "path", ts, 0);
+ ],
+ [glibcxx_cv_utimensat=yes],
+ [glibcxx_cv_utimensat=no])
+ ])
+ if test $glibcxx_cv_utimensat = yes; then
+ AC_DEFINE(_GLIBCXX_USE_UTIMENSAT, 1, [Define if utimensat and UTIME_OMIT are available in <sys/stat.h> and AT_FDCWD in <fcntl.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_utimensat)
+dnl
+ AC_MSG_CHECKING([for struct stat.st_mtim.tv_nsec])
+ AC_CACHE_VAL(glibcxx_cv_st_mtim, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [ #include <sys/stat.h> ],
+ [
+ struct stat st;
+ return st.st_mtim.tv_nsec;
+ ],
+ [glibcxx_cv_st_mtim=yes],
+ [glibcxx_cv_st_mtim=no])
+ ])
+ if test $glibcxx_cv_st_mtim = yes; then
+ AC_DEFINE(_GLIBCXX_USE_ST_MTIM, 1, [Define if struct stat has timespec members.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_st_mtim)
+dnl
+ AC_MSG_CHECKING([for fchmod])
+ AC_CACHE_VAL(glibcxx_cv_fchmod, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <sys/stat.h>],
+ [fchmod(1, S_IWUSR);],
+ [glibcxx_cv_fchmod=yes],
+ [glibcxx_cv_fchmod=no])
+ ])
+ if test $glibcxx_cv_fchmod = yes; then
+ AC_DEFINE(_GLIBCXX_USE_FCHMOD, 1, [Define if fchmod is available in <sys/stat.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_fchmod)
+dnl
+ AC_MSG_CHECKING([for fchmodat])
+ AC_CACHE_VAL(glibcxx_cv_fchmodat, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [
+ #include <fcntl.h>
+ #include <sys/stat.h>
+ ],
+ [fchmodat(AT_FDCWD, "", 0, AT_SYMLINK_NOFOLLOW);],
+ [glibcxx_cv_fchmodat=yes],
+ [glibcxx_cv_fchmodat=no])
+ ])
+ if test $glibcxx_cv_fchmodat = yes; then
+ AC_DEFINE(_GLIBCXX_USE_FCHMODAT, 1, [Define if fchmodat is available in <sys/stat.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_fchmodat)
+dnl
+ AC_MSG_CHECKING([for sendfile that can copy files])
+ AC_CACHE_VAL(glibcxx_cv_sendfile, [dnl
+ case "${target_os}" in
+ gnu* | linux* | solaris*)
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <sys/sendfile.h>],
+ [sendfile(1, 2, (off_t*)NULL, sizeof 1);],
+ [glibcxx_cv_sendfile=yes],
+ [glibcxx_cv_sendfile=no])
+ ;;
+ *)
+ glibcxx_cv_sendfile=no
+ ;;
+ esac
+ ])
+ if test $glibcxx_cv_sendfile = yes; then
+ AC_DEFINE(_GLIBCXX_USE_SENDFILE, 1, [Define if sendfile is available in <sys/stat.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_sendfile)
+dnl
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+])
+
# Macros from the top-level gcc directory.
m4_include([../config/gc++filt.m4])
m4_include([../config/tls.m4])
-
+m4_include([../config/gthr.m4])
projects / gcc.git / blobdiff