From a68b1da3cc7b454f110253534624c5ac4e065e72 Mon Sep 17 00:00:00 2001
From: Ken Thompson <ken@golang.org>
Date: Wed, 8 Jul 2009 17:58:15 -0700
Subject: [PATCH] another nil reference

R=rsc
OCL=31373
CL=31373
---
 src/cmd/gc/dcl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/cmd/gc/dcl.c b/src/cmd/gc/dcl.c
index 4a1dfa1c1b3..4c085c82f9b 100644
--- a/src/cmd/gc/dcl.c
+++ b/src/cmd/gc/dcl.c
@@ -107,6 +107,8 @@ updatetype(Type *n, Type *t)
 	int local, vargen;
 	int maplineno, lno, etype;
 
+	if(t == T)
+		return;
 	s = n->sym;
 	if(s == S || s->def == N || s->def->op != OTYPE || s->def->type != n)
 		fatal("updatetype %T = %T", n, t);