# 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++ src src/c++98 src/c++11 src/filesystem doc po testsuite python])
+ m4_define([glibcxx_SUBDIRS],[include libsupc++ src src/c++98 src/c++11 src/c++17 src/filesystem doc po testsuite python])
SUBDIRS='glibcxx_SUBDIRS'
# These need to be absolute paths, yet at the same time need to
ac_test_CXXFLAGS="${CXXFLAGS+set}"
ac_save_CXXFLAGS="$CXXFLAGS"
- # Check for maintainer-mode bits.
- if test x"$USE_MAINTAINER_MODE" = xno; then
- WERROR=''
- else
- WERROR='-Werror'
- fi
-
# Check for -ffunction-sections -fdata-sections
AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections])
CXXFLAGS='-g -Werror -ffunction-sections -fdata-sections'
AC_MSG_RESULT($ac_fdsections)
AC_LANG_RESTORE
- AC_SUBST(WERROR)
AC_SUBST(SECTION_FLAGS)
])
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>.])
+ [Define if S_ISREG is available in <sys/stat.h>.])
res=S_ISREG
elif test $glibcxx_cv_S_IFREG = yes; then
AC_DEFINE(HAVE_S_IFREG, 1,
dnl
AC_DEFUN([GLIBCXX_CONFIGURE_DOCBOOK], [
-AC_MSG_CHECKING([for docbook stylesheets for documentation creation])
-glibcxx_stylesheets=no
-if test x${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($glibcxx_stylesheets)
+glibcxx_docbook_url=http://docbook.sourceforge.net/release/xsl-ns/current/
AC_MSG_CHECKING([for local stylesheet directory])
glibcxx_local_stylesheets=no
-if test x"$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
+if test x${XMLCATALOG} = xyes && xsl_style_dir=`xmlcatalog "" $glibcxx_docbook_url 2>/dev/null`
+then
+ XSL_STYLE_DIR=`echo $xsl_style_dir | sed -n 's;^file://;;p'`
+ glibcxx_local_stylesheets=yes
+else
+ for dir in \
+ /usr/share/sgml/docbook/xsl-ns-stylesheets \
+ /usr/share/xml/docbook/stylesheet/docbook-xsl-ns \
+ /usr/share/xml/docbook/stylesheet/nwalsh5/current \
+ /usr/share/xml/docbook/stylesheet/nwalsh/current
+ do
+ if test -d $dir; then
+ glibcxx_local_stylesheets=yes
+ XSL_STYLE_DIR=$dir
+ break
+ fi
+ done
fi
AC_MSG_RESULT($glibcxx_local_stylesheets)
if test x"$glibcxx_local_stylesheets" = x"yes"; then
AC_SUBST(XSL_STYLE_DIR)
AC_MSG_NOTICE($XSL_STYLE_DIR)
+
+ AC_MSG_CHECKING([for docbook stylesheets for documentation creation])
+ glibcxx_stylesheets=no
+ if test x${XMLCATALOG} = xno || xmlcatalog "" $glibcxx_docbook_url/xhtml/docbook.xsl >/dev/null 2>&1; then
+ if test x${XSLTPROC} = xyes && echo '<title/>' | xsltproc --noout --nonet --xinclude $glibcxx_docbook_url/xhtml/docbook.xsl - 2>/dev/null; then
+ glibcxx_stylesheets=yes
+ fi
+ fi
+ AC_MSG_RESULT($glibcxx_stylesheets)
+
else
glibcxx_stylesheets=no
fi
# OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc
AC_SUBST(OPTIMIZE_CXXFLAGS)
- WARN_FLAGS='-Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi'
+ WARN_FLAGS="-Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi=2"
AC_SUBST(WARN_FLAGS)
])
ac_has_nanosleep=yes
ac_has_sched_yield=yes
;;
- freebsd*|netbsd*|dragonfly*)
+ freebsd*|netbsd*|dragonfly*|rtems*)
ac_has_clock_monotonic=yes
ac_has_clock_realtime=yes
ac_has_nanosleep=yes
dnl
-dnl Check whether "/dev/random" and "/dev/urandom" are available for the
+dnl Check whether "/dev/random" and "/dev/urandom" are available for
+dnl class std::random_device from C++ 2011 [rand.device], and
dnl random_device of "TR1" (Chapter 5.1, "Random number generation").
dnl
-AC_DEFUN([GLIBCXX_CHECK_RANDOM_TR1], [
+AC_DEFUN([GLIBCXX_CHECK_DEV_RANDOM], [
- AC_MSG_CHECKING([for "/dev/random" and "/dev/urandom" for TR1 random_device])
- AC_CACHE_VAL(glibcxx_cv_random_tr1, [
+ AC_MSG_CHECKING([for "/dev/random" and "/dev/urandom" for std::random_device])
+ AC_CACHE_VAL(glibcxx_cv_dev_random, [
if test -r /dev/random && test -r /dev/urandom; then
- ## For MSys environment the test above is detect as false-positive
- ## on mingw-targets. So disable it explicit for them.
+ ## For MSys environment the test above is detected as false-positive
+ ## on mingw-targets. So disable it explicitly for them.
case ${target_os} in
- *mingw*) glibcxx_cv_random_tr1=no ;;
- *) glibcxx_cv_random_tr1=yes ;;
+ *mingw*) glibcxx_cv_dev_random=no ;;
+ *) glibcxx_cv_dev_random=yes ;;
esac
else
- glibcxx_cv_random_tr1=no;
+ glibcxx_cv_dev_random=no;
fi
])
- AC_MSG_RESULT($glibcxx_cv_random_tr1)
+ AC_MSG_RESULT($glibcxx_cv_dev_random)
- if test x"$glibcxx_cv_random_tr1" = x"yes"; then
+ if test x"$glibcxx_cv_dev_random" = x"yes"; then
+ AC_DEFINE(_GLIBCXX_USE_DEV_RANDOM, 1,
+ [Define if /dev/random and /dev/urandom are available for
+ std::random_device.])
AC_DEFINE(_GLIBCXX_USE_RANDOM_TR1, 1,
[Define if /dev/random and /dev/urandom are available for
the random_device of TR1 (Chapter 5.1).])
AC_MSG_CHECKING([for obsolete isnan function in <math.h>])
AC_CACHE_VAL(glibcxx_cv_obsolete_isnan, [
AC_COMPILE_IFELSE([AC_LANG_SOURCE(
- [#include <math.h>
+ [#define _GLIBCXX_INCLUDE_NEXT_C_HEADERS
+ #include <math.h>
#undef isnan
namespace std {
using ::isnan;
dnl
AC_DEFUN([GLIBCXX_ENABLE_DEBUG], [
AC_MSG_CHECKING([for additional debug build])
+ skip_debug_build=
GLIBCXX_ENABLE(libstdcxx-debug,$1,,[build extra debug library])
- AC_MSG_RESULT($enable_libstdcxx_debug)
+ if test x$enable_libstdcxx_debug = xyes; then
+ if test -f $toplevel_builddir/../stage_final \
+ && test -f $toplevel_builddir/../stage_current; then
+ stage_final=`cat $toplevel_builddir/../stage_final`
+ stage_current=`cat $toplevel_builddir/../stage_current`
+ if test x$stage_current != x$stage_final ; then
+ skip_debug_build=" (skipped for bootstrap stage $stage_current)"
+ enable_libstdcxx_debug=no
+ fi
+ fi
+ fi
+ AC_MSG_RESULT($enable_libstdcxx_debug$skip_debug_build)
GLIBCXX_CONDITIONAL(GLIBCXX_BUILD_DEBUG, test $enable_libstdcxx_debug = yes)
])
dnl
dnl Defines:
dnl _GLIBCXX_USE_INT128
-dnl _GLIBCXX_USE_FLOAT128
+dnl ENABLE_FLOAT128
dnl
AC_DEFUN([GLIBCXX_ENABLE_INT128_FLOAT128], [
AC_MSG_CHECKING([for __float128])
if AC_TRY_EVAL(ac_compile); then
- AC_DEFINE(_GLIBCXX_USE_FLOAT128, 1,
- [Define if __float128 is supported on this host.])
enable_float128=yes
else
enable_float128=no
fi
AC_MSG_RESULT($enable_float128)
+ GLIBCXX_CONDITIONAL(ENABLE_FLOAT128, test $enable_float128 = yes)
rm -f conftest*
AC_LANG_RESTORE
])
+dnl
+dnl Set default lock policy for synchronizing shared_ptr reference counting.
+dnl
+dnl --with-libstdcxx-lock-policy=auto
+dnl Use atomic operations for shared_ptr reference counting only if
+dnl the default target supports atomic compare-and-swap.
+dnl --with-libstdcxx-lock-policy=atomic
+dnl Use atomic operations for shared_ptr reference counting.
+dnl --with-libstdcxx-lock-policy=mutex
+dnl Use a mutex to synchronize shared_ptr reference counting.
+dnl
+dnl This controls the value of __gnu_cxx::__default_lock_policy, which
+dnl determines how shared_ptr reference counts are synchronized.
+dnl The option "atomic" means that atomic operations should be used,
+dnl "mutex" means that a mutex will be used. The default option, "auto",
+dnl will check if the target supports the compiler-generated builtins
+dnl for atomic compare-and-swap operations for 2-byte and 4-byte integers,
+dnl and will use "atomic" if supported, "mutex" otherwise.
+dnl This option is ignored if the thread model used by GCC is "single",
+dnl as no synchronization is used at all in that case.
+dnl This option affects the library ABI (except in the "single" thread model).
+dnl
+dnl Defines _GLIBCXX_HAVE_ATOMIC_LOCK_POLICY to 1 if atomics should be used.
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_LOCK_POLICY], [
+
+ AC_ARG_WITH([libstdcxx-lock-policy],
+ AC_HELP_STRING([--with-libstdcxx-lock-policy={atomic,mutex,auto}],
+ [synchronization policy for shared_ptr reference counting [default=auto]]),
+ [libstdcxx_atomic_lock_policy=$withval],
+ [libstdcxx_atomic_lock_policy=auto])
+
+ case "$libstdcxx_atomic_lock_policy" in
+ atomic|mutex|auto) ;;
+ *) AC_MSG_ERROR([Invalid argument for --with-libstdcxx-lock-policy]) ;;
+ esac
+ AC_MSG_CHECKING([for lock policy for shared_ptr reference counts])
+
+ if test x"$libstdcxx_atomic_lock_policy" = x"auto"; then
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$CXXFLAGS"
+
+ dnl Why do we care about 2-byte CAS on targets with 4-byte _Atomic_word?!
+ AC_TRY_COMPILE([
+ #if ! defined __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2
+ # error "No 2-byte compare-and-swap"
+ #elif ! defined __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
+ # error "No 4-byte compare-and-swap"
+ #endif
+ ],,
+ [libstdcxx_atomic_lock_policy=atomic],
+ [libstdcxx_atomic_lock_policy=mutex])
+ AC_LANG_RESTORE
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ fi
+
+ if test x"$libstdcxx_atomic_lock_policy" = x"atomic"; then
+ AC_MSG_RESULT(atomic)
+ AC_DEFINE(HAVE_ATOMIC_LOCK_POLICY,1,
+ [Defined if shared_ptr reference counting should use atomic operations.])
+ else
+ AC_MSG_RESULT(mutex)
+ fi
+
+])
dnl
dnl Allow visibility attributes to be used on namespaces, objects, etc.
fi
# For libtool versioning info, format is CURRENT:REVISION:AGE
-libtool_VERSION=6:23:0
+libtool_VERSION=6:27:0
# Everything parsed; figure out what files and settings to use.
case $enable_symvers in
[Define to use GNU versioning in the shared library.])
;;
gnu-versioned-namespace)
- libtool_VERSION=7:0:0
+ libtool_VERSION=8:0:0
SYMVER_FILE=config/abi/pre/gnu-versioned-namespace.ver
AC_DEFINE(_GLIBCXX_SYMVER_GNU_NAMESPACE, 1,
[Define to use GNU namespace versioning in the shared library.])
AC_MSG_RESULT($ac_cv_x86_rdrand)
])
+dnl
+dnl Check whether rdseed is supported in the assembler.
+AC_DEFUN([GLIBCXX_CHECK_X86_RDSEED], [
+ AC_MSG_CHECKING([for rdseed support in assembler])
+ AC_CACHE_VAL(ac_cv_x86_rdseed, [
+ ac_cv_x86_rdseed=no
+ case "$target" in
+ i?86-*-* | \
+ x86_64-*-*)
+ AC_TRY_COMPILE(, [asm("rdseed %eax");],
+ [ac_cv_x86_rdseed=yes], [ac_cv_x86_rdseed=no])
+ esac
+ ])
+ if test $ac_cv_x86_rdseed = yes; then
+ AC_DEFINE(_GLIBCXX_X86_RDSEED, 1,
+ [ Defined if as can handle rdseed. ])
+ fi
+ AC_MSG_RESULT($ac_cv_x86_rdseed)
+])
+
dnl
dnl Check whether get_nprocs is available in <sys/sysinfo.h>, and define _GLIBCXX_USE_GET_NPROCS.
dnl
gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
enable_libstdcxx_filesystem_ts=yes
;;
+ rtems*)
+ enable_libstdcxx_filesystem_ts=yes
+ ;;
solaris*)
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 Check whether the library calls required by the Filesystem TS are present.
+dnl Defines:
+dnl HAVE_STRUCT_DIRENT_D_TYPE
+dnl _GLIBCXX_USE_REALPATH
+dnl _GLIBCXX_USE_UTIMENSAT
+dnl _GLIBCXX_USE_ST_MTIM
+dnl _GLIBCXX_USE_FCHMOD
+dnl _GLIBCXX_USE_FCHMODAT
+dnl _GLIBCXX_USE_SENDFILE
+dnl HAVE_LINK
+dnl HAVE_READLINK
+dnl HAVE_SYMLINK
dnl
AC_DEFUN([GLIBCXX_CHECK_FILESYSTEM_DEPS], [dnl
dnl
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
- ac_save_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS="$CXXFLAGS -fno-exceptions"
+ if test $enable_libstdcxx_filesystem_ts = yes; then
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ ac_save_CXXFLAGS="$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 $glibcxx_cv_dirent_d_type = yes; then
- AC_DEFINE(HAVE_STRUCT_DIRENT_D_TYPE, 1, [Define to 1 if `d_type' is a member of `struct dirent'.])
- fi
- AC_MSG_RESULT($glibcxx_cv_dirent_d_type)
+ 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 $glibcxx_cv_dirent_d_type = yes; then
+ AC_DEFINE(HAVE_STRUCT_DIRENT_D_TYPE, 1, [Define to 1 if `d_type' is a member of `struct dirent'.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_dirent_d_type)
dnl
- AC_MSG_CHECKING([for realpath])
- AC_CACHE_VAL(glibcxx_cv_realpath, [dnl
- GCC_TRY_COMPILE_OR_LINK(
- [
- #include <limits.h>
- #include <stdlib.h>
- #include <unistd.h>
- ],
- [
- #if _XOPEN_VERSION < 500
- #error
- #elif _XOPEN_VERSION >= 700 || defined(PATH_MAX)
- char *tmp = realpath((const char*)NULL, (char*)NULL);
- #else
- #error
- #endif
- ],
- [glibcxx_cv_realpath=yes],
- [glibcxx_cv_realpath=no])
- ])
- if test $glibcxx_cv_realpath = yes; then
- AC_DEFINE(_GLIBCXX_USE_REALPATH, 1, [Define if usable realpath is available in <stdlib.h>.])
- fi
- AC_MSG_RESULT($glibcxx_cv_realpath)
+ AC_MSG_CHECKING([for realpath])
+ AC_CACHE_VAL(glibcxx_cv_realpath, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [
+ #include <limits.h>
+ #include <stdlib.h>
+ #include <unistd.h>
+ ],
+ [
+ #if _XOPEN_VERSION < 500
+ #error
+ #elif _XOPEN_VERSION >= 700 || defined(PATH_MAX)
+ char *tmp = realpath((const char*)NULL, (char*)NULL);
+ #else
+ #error
+ #endif
+ ],
+ [glibcxx_cv_realpath=yes],
+ [glibcxx_cv_realpath=no])
+ ])
+ if test $glibcxx_cv_realpath = yes; then
+ AC_DEFINE(_GLIBCXX_USE_REALPATH, 1, [Define if usable realpath is available in <stdlib.h>.])
+ fi
+ AC_MSG_RESULT($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)
+ 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)
+ AC_MSG_CHECKING([for utime])
+ AC_CACHE_VAL(glibcxx_cv_utime, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [
+ #include <utime.h>
+ ],
+ [
+ struct utimbuf t = { 1, 1 };
+ int i = utime("path", &t);
+ ],
+ [glibcxx_cv_utime=yes],
+ [glibcxx_cv_utime=no])
+ ])
+ if test $glibcxx_cv_utime = yes; then
+ AC_DEFINE(_GLIBCXX_USE_UTIME, 1, [Define if utime is available in <utime.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_utime)
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)
+ AC_MSG_CHECKING([for lstat])
+ AC_CACHE_VAL(glibcxx_cv_lstat, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [ #include <sys/stat.h> ],
+ [
+ struct stat st;
+ int i = lstat("path", &st);
+ ],
+ [glibcxx_cv_lstat=yes],
+ [glibcxx_cv_lstat=no])
+ ])
+ if test $glibcxx_cv_lstat = yes; then
+ AC_DEFINE(_GLIBCXX_USE_LSTAT, 1, [Define if lstat is available in <sys/stat.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_lstat)
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)
+ 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 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*)0, sizeof 1);],
- [glibcxx_cv_sendfile=yes],
- [glibcxx_cv_sendfile=no])
- ;;
- *)
- glibcxx_cv_sendfile=no
- ;;
- esac
- ])
- if test $glibcxx_cv_sendfile = yes; then
- AC_DEFINE(_GLIBCXX_USE_SENDFILE, 1, [Define if sendfile is available in <sys/sendfile.h>.])
- fi
- AC_MSG_RESULT($glibcxx_cv_sendfile)
+ 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
- CXXFLAGS="$ac_save_CXXFLAGS"
- AC_LANG_RESTORE
+ 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*)0, sizeof 1);],
+ [glibcxx_cv_sendfile=yes],
+ [glibcxx_cv_sendfile=no])
+ ;;
+ *)
+ glibcxx_cv_sendfile=no
+ ;;
+ esac
+ ])
+ if test $glibcxx_cv_sendfile = yes; then
+ AC_DEFINE(_GLIBCXX_USE_SENDFILE, 1, [Define if sendfile is available in <sys/sendfile.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_sendfile)
+dnl
+ AC_MSG_CHECKING([for link])
+ AC_CACHE_VAL(glibcxx_cv_link, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <unistd.h>],
+ [link("", "");],
+ [glibcxx_cv_link=yes],
+ [glibcxx_cv_link=no])
+ ])
+ if test $glibcxx_cv_link = yes; then
+ AC_DEFINE(HAVE_LINK, 1, [Define if link is available in <unistd.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_link)
+dnl
+ AC_MSG_CHECKING([for readlink])
+ AC_CACHE_VAL(glibcxx_cv_readlink, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <unistd.h>],
+ [char buf[32]; readlink("", buf, sizeof(buf));],
+ [glibcxx_cv_readlink=yes],
+ [glibcxx_cv_readlink=no])
+ ])
+ if test $glibcxx_cv_readlink = yes; then
+ AC_DEFINE(HAVE_READLINK, 1, [Define if readlink is available in <unistd.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_readlink)
+dnl
+ AC_MSG_CHECKING([for symlink])
+ AC_CACHE_VAL(glibcxx_cv_symlink, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <unistd.h>],
+ [symlink("", "");],
+ [glibcxx_cv_symlink=yes],
+ [glibcxx_cv_symlink=no])
+ ])
+ if test $glibcxx_cv_symlink = yes; then
+ AC_DEFINE(HAVE_SYMLINK, 1, [Define if symlink is available in <unistd.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_symlink)
+dnl
+ AC_MSG_CHECKING([for truncate])
+ AC_CACHE_VAL(glibcxx_cv_truncate, [dnl
+ GCC_TRY_COMPILE_OR_LINK(
+ [#include <unistd.h>],
+ [truncate("", 99);],
+ [glibcxx_cv_truncate=yes],
+ [glibcxx_cv_truncate=no])
+ ])
+ if test $glibcxx_cv_truncate = yes; then
+ AC_DEFINE(HAVE_TRUNCATE, 1, [Define if truncate is available in <unistd.h>.])
+ fi
+ AC_MSG_RESULT($glibcxx_cv_truncate)
+dnl
+ CXXFLAGS="$ac_save_CXXFLAGS"
+ AC_LANG_RESTORE
+ fi
])
dnl
[glibcxx_cv_size_t_mangling=y], [
AC_TRY_COMPILE([],
[extern __SIZE_TYPE__ x; extern unsigned short x;],
- [glibcxx_cv_size_t_mangling=t],
- [glibcxx_cv_size_t_mangling=x])
+ [glibcxx_cv_size_t_mangling=t], [
+ AC_TRY_COMPILE([],
+ [extern __SIZE_TYPE__ x; extern __int20 unsigned x;],
+ [glibcxx_cv_size_t_mangling=u6uint20],
+ [glibcxx_cv_size_t_mangling=x])
+ ])
])
])
])
m4_include([../config/gc++filt.m4])
m4_include([../config/tls.m4])
m4_include([../config/gthr.m4])
+m4_include([../config/cet.m4])
projects / gcc.git / blobdiff