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authorbkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4>2008-04-14 23:53:15 +0000
committerbkoz <bkoz@138bc75d-0d04-0410-961f-82ee72b054a4>2008-04-14 23:53:15 +0000
commit271bda8a3bbda83213f416b668521c2d7d9fd095 (patch)
treea7345e10e942e97fd4bb52832ef729df6951e837
parent3c3b31c65a5f7a3d1fff76b9dd05ac3aa586400a (diff)
downloadppe42-gcc-271bda8a3bbda83213f416b668521c2d7d9fd095.tar.gz
ppe42-gcc-271bda8a3bbda83213f416b668521c2d7d9fd095.zip
2008-04-14 Benjamin Kosnik <bkoz@redhat.com>
PR libstdc++/35816 * acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Set CXXFLAGS to -O0 when checking for atomic builtins. * configure: Regenerate. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@134297 138bc75d-0d04-0410-961f-82ee72b054a4
-rw-r--r--libstdc++-v3/ChangeLog7
-rw-r--r--libstdc++-v3/acinclude.m44
-rwxr-xr-xlibstdc++-v3/configure6
3 files changed, 12 insertions, 5 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 358da48de70..fb3e6224579 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,5 +1,12 @@
2008-04-14 Benjamin Kosnik <bkoz@redhat.com>
+ PR libstdc++/35816
+ * acinclude.m4 (GLIBCXX_ENABLE_ATOMIC_BUILTINS): Set CXXFLAGS to
+ -O0 when checking for atomic builtins.
+ * configure: Regenerate.
+
+2008-04-14 Benjamin Kosnik <bkoz@redhat.com>
+
* include/bits/c++config: Guard _LDBL_ macros with __cplusplus.
2008-04-10 Benjamin Kosnik <bkoz@redhat.com>
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index e1712b77d80..b25c5add572 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -2292,7 +2292,7 @@ int main()
}
EOF
old_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS=-S
+ CXXFLAGS='-O0 -S'
if AC_TRY_EVAL(ac_compile); then
if grep __sync_fetch_and_add conftest.s >/dev/null 2>&1 ; then
enable_atomic_builtins=no
@@ -2303,6 +2303,7 @@ EOF
atomicity_dir=cpu/generic/atomicity_builtins
fi
fi
+ AC_MSG_RESULT($enable_atomic_builtins)
CXXFLAGS="$old_CXXFLAGS"
rm -f conftest*
@@ -2311,7 +2312,6 @@ EOF
atomicity_dir=cpu/generic/atomicity_mutex
fi
AC_LANG_RESTORE
- AC_MSG_RESULT($enable_atomic_builtins)
])
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 6e6e1996e62..8ce34b20a93 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -18104,7 +18104,7 @@ int main()
}
EOF
old_CXXFLAGS="$CXXFLAGS"
- CXXFLAGS=-S
+ CXXFLAGS='-O0 -S'
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
(eval $ac_compile) 2>&5
ac_status=$?
@@ -18122,6 +18122,8 @@ _ACEOF
atomicity_dir=cpu/generic/atomicity_builtins
fi
fi
+ echo "$as_me:$LINENO: result: $enable_atomic_builtins" >&5
+echo "${ECHO_T}$enable_atomic_builtins" >&6
CXXFLAGS="$old_CXXFLAGS"
rm -f conftest*
@@ -18135,8 +18137,6 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
- echo "$as_me:$LINENO: result: $enable_atomic_builtins" >&5
-echo "${ECHO_T}$enable_atomic_builtins" >&6
if test $atomicity_dir = cpu/generic/atomicity_mutex ; then
{ echo "$as_me:$LINENO: WARNING: No native atomic operations are provided for this platform." >&5
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