])
-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="$CXXFLAGS"
- CXXFLAGS=-S
- if AC_TRY_EVAL(ac_compile); then
- if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=yes
- elif grep _Unwind_SjLj_Register conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=yes
- elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=no
- elif grep __cxa_end_cleanup conftest.s >/dev/null 2>&1 ; then
- enable_sjlj_exceptions=no
- fi
- fi
- CXXFLAGS="$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
[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 "${target_os}" in
freebsd*|netbsd*|openbsd*|dragonfly*|darwin*)
enable_libstdcxx_filesystem_ts=yes
;;
solaris*)
- enable_libstdcxx_filesystem_ts=no
+ enable_libstdcxx_filesystem_ts=yes
;;
*)
enable_libstdcxx_filesystem_ts=no
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$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
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
projects / gcc.git / blobdiff