PR c++/22618

[pf3gnuchains/gcc-fork.git] / libobjc / configure.ac

diff --git a/libobjc/configure.ac b/libobjc/configure.ac
index 149d7e5..caf2f8d 100644 (file)
--- a/libobjc/configure.ac
+++ b/libobjc/configure.ac
@@ -17,8 +17,8 @@
 #
 #You should have received a copy of the GNU General Public License
 #along with GCC; see the file COPYING.  If not, write to
-#the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-#02111-1307, USA.
+#the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+#02110-1301, USA.
 
 AC_PREREQ(2.59)
 AC_INIT(package-unused, version-unused,, libobjc)
@@ -178,6 +178,15 @@ m4_define([_AC_ARG_VAR_PRECIOUS],[])
 AC_PROG_CC
 m4_rename([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
 
+# extra LD Flags which are required for targets
+case "${host}" in
+  *-darwin*)
+    # Darwin needs -single_module when linking libobjc
+    extra_ldflags_libobjc=-Wl,-single_module
+    ;;
+esac
+AC_SUBST(extra_ldflags_libobjc)
+
 AC_SUBST(CFLAGS)
 
 AC_CHECK_TOOL(AS, as)