Index: Python/symtable.c
===================================================================
--- Python/symtable.c	(revision 64022)
+++ Python/symtable.c	(working copy)
@@ -1273,9 +1273,15 @@
 	int i;
 	for (i = 0; i < asdl_seq_LEN(args); i++) {
 		expr_ty arg = (expr_ty)asdl_seq_GET(args, i);
-		if (arg->kind == Tuple_kind &&
-		    !symtable_visit_params(st, arg->v.Tuple.elts, 0))
-			return 0;
+		if (arg->kind == Tuple_kind) {
+			if (Py_Py3kWarningFlag &&
+			    !symtable_warn(st, "In 3.x, "
+					"tuple parameter upacking is removed.",
+					  st->st_cur->ste_lineno))
+				return 0;
+			if (!symtable_visit_params(st, arg->v.Tuple.elts, 0))
+				return 0;
+		}
 	}
 	
 	return 1;