From 31c07dfddf022c07e82c63f37c66825e1dfc2aa7 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Thu, 15 Jul 2010 15:22:51 -0700
Subject: [PATCH] gc: issue 901

Fixes #901.

R=ken2
CC=golang-dev
https://golang.org/cl/1674049
---
 src/cmd/gc/walk.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/cmd/gc/walk.c b/src/cmd/gc/walk.c
index 8b8096400e..50d2ba3ea1 100644
--- a/src/cmd/gc/walk.c
+++ b/src/cmd/gc/walk.c
@@ -281,6 +281,13 @@ walkdef(Node *n)
 		if(n->defn == N) {
 			if(n->etype != 0)	// like OPRINTN
 				break;
+			if(nerrors > 0) {
+				// Can have undefined variables in x := foo
+				// that make x have an n->ndefn == nil.
+				// If there are other errors anyway, don't
+				// bother adding to the noise.
+				break;
+			}
 			fatal("var without type, init: %S", n->sym);
 		}
 		if(n->defn->op == ONAME) {
-- 
2.48.1