(attrib): Handle attribute ((section ("string"))).

From-SVN: r6581

gcc/c-parse.in

@@ -1110,6 +1110,16 @@ attrib
 				       tree_cons ($5, $7, NULL_TREE),
 				       NULL_TREE),
 			    NULL_TREE); }
+    | IDENTIFIER '(' STRING ')'
+	{ /* If not "section (name)", then issue warning.  */
+	  if (strcmp (IDENTIFIER_POINTER ($1), "section") != 0)
+	    {
+	      warning ("`%s' attribute directive ignored",
+		       IDENTIFIER_POINTER ($1));
+	      $$ = $1;
+	    }
+	  else
+	    $$ = tree_cons ($1, $3, NULL_TREE); }
     ;
 
 /* Initializers.  `init' is the entry point.  */