diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ed5f975e44f..03c3f5eb968 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-07-09  Richard SAndiford  <richard@codesourcery.com>
+
+	PR target/21656
+	* config/mips/elf.h (NO_IMPLICIT_EXTERN_C): Define.
+
 2005-07-08  David Edelsohn  <edelsohn@gnu.org>
 
 	* config/rs6000/sync.md (load_locked_<mode>): Use Z for
diff --git a/gcc/config/mips/elf.h b/gcc/config/mips/elf.h
index 33495bb312e..0fa4bba6abb 100644
--- a/gcc/config/mips/elf.h
+++ b/gcc/config/mips/elf.h
@@ -48,3 +48,5 @@ Boston, MA 02110-1301, USA.  */
 
 #undef  ENDFILE_SPEC
 #define ENDFILE_SPEC "crtend%O%s crtn%O%s"
+
+#define NO_IMPLICIT_EXTERN_C 1