AC_MSG_NOTICE([OS config directory is $os_include_dir])
])
-
-dnl
-dnl Initialize basic configure bits.
-dnl
-dnl Substs:
-dnl multi_basedir
-dnl
-AC_DEFUN([GLIBCXX_TOPREL_CONFIGURE], [
- # Sets up multi_basedir, which is srcdir/.. plus the usual
- # "multi_source_toprel_bottom_adjust" lunacy as needed.
- AM_ENABLE_MULTILIB(, ..)
-
- # The generated code is exactly the same, except that automake's looks in
- # ".. $srcdir/.." and autoconf's looks in multi_basedir. Apparently other
- # things are triggered on the presence of the two ...AUX_DIR[S], but I don't
- # know what they are or what the other differences might be (and they keep
- # changing anyhow).
- #
- # Looking in multi_basedir seems smarter, so actually execute that branch.
- if false; then
- # this is for automake
- AC_CONFIG_AUX_DIR(..)
- else
- # this is for autoconf
- AC_CONFIG_AUX_DIRS(${multi_basedir})
- fi
-
- dnl XXX Turn this on.
- dnl AC_LANG_CPLUSPLUS
-])
-
-
dnl
dnl Initialize the rest of the library configury. At this point we have
dnl variables like $host.
AC_TRY_LINK(
[#include <unistd.h>
#include <stdio.h>
+ #include <sys/stat.h>
],
[FILE* fp;
fopen64("t", "w");
fseeko64(fp, 0, SEEK_CUR);
ftello64(fp);
- lseek64(1, 0, SEEK_CUR);],
+ lseek64(1, 0, SEEK_CUR);
+ struct stat64 buf;
+ fstat64(1, &buf);],
[glibcxx_cv_LFS=yes],
[glibcxx_cv_LFS=no])
])
dnl
+dnl Check for whether a fully dynamic basic_string implementation should
+dnl be turned on, that does not put empty objects in per-process static
+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 + 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)
+ fi
+])
+
+dnl
+dnl Check for --enable-__cxa_atexit
+dnl
+dnl --enable-__cxa_atexit defines _GLIBCXX_USE___CXA_ATEXIT
+dnl --disable-__cxa_atexit doesn't define _GLIBCXX_USE___CXA_ATEXIT
+dnl + Usage: GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING[(DEFAULT)]
+dnl Where DEFAULT is either `yes' or `no'.
+dnl
+AC_DEFUN([GLIBCXX_ENABLE_CXA_ATEXIT], [
+ GLIBCXX_ENABLE(__cxa_atexit,$1,,
+ [Define if __cxa_atexit is to be used instead of atexit.])
+ if test $enable___cxa_atexit = yes; then
+ AC_DEFINE(_GLIBCXX_USE___CXA_ATEXIT)
+ fi
+])
+
+dnl
dnl Does any necessary configuration of the testsuite directory. Generates
dnl the testsuite_hooks.h header.
dnl
dnl
dnl Sets:
dnl enable_abi_check / GLIBCXX_TEST_ABI
+dnl GLIBCXX_TEST_WCHAR_T
+dnl GLIBCXX_TEST_THREAD
dnl Substs:
dnl baseline_dir
dnl
AC_SUBST(baseline_dir)
GLIBCXX_CONDITIONAL(GLIBCXX_TEST_WCHAR_T, test $enable_wchar_t = yes)
+ GLIBCXX_CONDITIONAL(GLIBCXX_TEST_THREAD, test $enable_thread = yes)
GLIBCXX_CONDITIONAL(GLIBCXX_TEST_ABI, test $enable_abi_check = yes)
])
# Probe for locale support if no specific model is specified.
# Default to "generic".
if test $enable_clocale_flag = auto; then
- case x${target_os} in
- xlinux* | xgnu* | xkfreebsd*-gnu | xknetbsd*-gnu)
+ case ${target_os} in
+ linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
AC_EGREP_CPP([_GLIBCXX_ok], [
#include <features.h>
#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
], enable_clocale_flag=gnu, enable_clocale_flag=generic)
# Test for bugs early in glibc-2.2.x series
- if test x$enable_clocale_flag = xgnu; then
+ if test $enable_clocale_flag = gnu; then
AC_TRY_RUN([
#define _GNU_SOURCE 1
#include <locale.h>
GLIBCXX_ENABLE(libstdcxx-allocator,auto,[=KIND],
[use KIND for target std::allocator base],
[permit new|malloc|mt|bitmap|pool|yes|no|auto])
+
# If they didn't use this option switch, or if they specified --enable
# with no specific model, we'll have to look for one. If they
# specified --disable (???), do likewise.
- if test $enable_libstdcxx_allocator = no || test $enable_libstdcxx_allocator = yes; then
+ if test $enable_libstdcxx_allocator = no ||
+ test $enable_libstdcxx_allocator = yes;
+ then
enable_libstdcxx_allocator=auto
fi
- # Either a known package, or "auto"
+ # Either a known package, or "auto". Auto implies the default choice
+ # for a particular platform.
enable_libstdcxx_allocator_flag=$enable_libstdcxx_allocator
# Probe for host-specific support if no specific model is specified.
# Default to "new".
if test $enable_libstdcxx_allocator_flag = auto; then
case ${target_os} in
+ linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
+ enable_libstdcxx_allocator_flag=mt
+ ;;
*)
enable_libstdcxx_allocator_flag=new
;;
AC_ARG_ENABLE([hosted-libstdcxx],
AC_HELP_STRING([--disable-hosted-libstdcxx],
[only build freestanding C++ runtime support]),,
- [enable_hosted_libstdcxx=yes])
+ [case "$host" in
+ arm*-*-symbianelf*)
+ enable_hosted_libstdcxx=no
+ ;;
+ *)
+ enable_hosted_libstdcxx=yes
+ ;;
+ esac])
if test "$enable_hosted_libstdcxx" = no; then
AC_MSG_NOTICE([Only freestanding libraries will be built])
is_hosted=no
dnl --disable-long-long leaves _GLIBCXX_USE_LONG_LONG undefined
dnl + Usage: GLIBCXX_ENABLE_LONG_LONG[(DEFAULT)]
dnl Where DEFAULT is either `yes' or `no'.
-dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'.
dnl
AC_DEFUN([GLIBCXX_ENABLE_LONG_LONG], [
GLIBCXX_ENABLE(long-long,$1,,[enables I/O support for 'long long'])
-
- AC_LANG_SAVE
- AC_LANG_CPLUSPLUS
-
- AC_MSG_CHECKING([for enabled long long I/O support])
- # iostreams require strtoll, strtoull to compile
- AC_TRY_COMPILE([#include <stdlib.h>],
- [char* tmp; strtoll("gnu", &tmp, 10);],,[enable_long_long=no])
- AC_TRY_COMPILE([#include <stdlib.h>],
- [char* tmp; strtoull("gnu", &tmp, 10);],,[enable_long_long=no])
-
- # Option parsed, now set things appropriately
if test $enable_long_long = yes; then
AC_DEFINE(_GLIBCXX_USE_LONG_LONG)
fi
- AC_MSG_RESULT($enable_long_long)
-
- AC_LANG_RESTORE
])
CFLAGS=' -lgcc_s'
AC_TRY_LINK(, [return 0;], glibcxx_shared_libgcc=yes, glibcxx_shared_libgcc=no)
CFLAGS="$ac_save_CFLAGS"
+ if test $glibcxx_shared_libgcc = no; then
+ cat > conftest.c <<EOF
+int main (void) { return 0; }
+EOF
+changequote(,)dnl
+ glibcxx_libgcc_s_suffix=`${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
+ -shared -shared-libgcc -o conftest.so \
+ conftest.c -v 2>&1 >/dev/null \
+ | sed -n 's/^.* -lgcc_s\([^ ]*\) .*$/\1/p'`
+changequote([,])dnl
+ rm -f conftest.c conftest.so
+ if test x${glibcxx_libgcc_s_suffix+set} = xset; then
+ CFLAGS=" -lgcc_s$glibcxx_libgcc_s_suffix"
+ AC_TRY_LINK(, [return 0;], glibcxx_shared_libgcc=yes)
+ CFLAGS="$ac_save_CFLAGS"
+ fi
+ fi
AC_MSG_RESULT($glibcxx_shared_libgcc)
fi
fi
glibcxx_thread_h=gthr-$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)
])
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