linux.h (CPLUSPLUS_CPP_SPEC): New.

        2001-06-11  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

        * config/rs6000/linux.h (CPLUSPLUS_CPP_SPEC): New.

From-SVN: r43207

gcc/ChangeLog

+2001-06-11  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>
+
+	* config/rs6000/linux.h (CPLUSPLUS_CPP_SPEC): New.
+
 2001-06-11  Stan Shebs  <shebs@apple.com>
 
 	* darwin.c (darwin_encode_section_info):  Rewrite to simplify

gcc/config/rs6000/linux.h

@@ -34,6 +34,12 @@ Boston, MA 02111-1307, USA.  */
 #undef	CPP_OS_DEFAULT_SPEC
 #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
 
+/* The GNU C++ standard library currently requires _GNU_SOURCE being
+   defined on glibc-based systems. This temporary hack accomplishes this,
+   it should go away as soon as libstdc++-v3 has a real fix.  */
+#undef CPLUSPLUS_CPP_SPEC
+#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
+
 #undef LINK_SHLIB_SPEC
 #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"