re PR bootstrap/66085 (Revision r222934 breaks bootstrap on darwin.)

	PR bootstrap/66085
	* decl2.c (note_mangling_alias): Declare arguments as unused.

From-SVN: r222969

gcc/cp/ChangeLog

+2015-05-09  Aldy Hernandez  <aldyh@redhat.com>
+
+	PR bootstrap/66085
+	* decl2.c (note_mangling_alias): Declare arguments as unused.
+
 2015-05-08  Jason Merrill  <jason@redhat.com>
 
 	* cp-gimplify.c, parser.c: Adjust to -Wc++11-compat replacing

gcc/cp/decl2.c

@@ -4327,7 +4327,7 @@ generate_mangling_alias (tree decl, tree id2)
    implementation.  */
 
 void
-note_mangling_alias (tree decl, tree id2)
+note_mangling_alias (tree decl ATTRIBUTE_UNUSED, tree id2 ATTRIBUTE_UNUSED)
 {
 #ifdef ASM_OUTPUT_DEF
   if (at_eof)