From 57fcdcca2127973e8467973ff6d3f18ccefb99c5 Mon Sep 17 00:00:00 2001
From: Robert Griesemer <gri@golang.org>
Date: Thu, 31 Jul 2008 15:35:25 -0700
Subject: [PATCH] fixed bug in FixExt routine

R=r
OCL=13695
CL=13695
---
 usr/gri/gosrc/utils.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr/gri/gosrc/utils.go b/usr/gri/gosrc/utils.go
index e780e9618f..bbf5039d0a 100644
--- a/usr/gri/gosrc/utils.go
+++ b/usr/gri/gosrc/utils.go
@@ -22,7 +22,7 @@ func BaseName(s string) string {
 export FixExt
 func FixExt(s string) string {
 	i := len(s) - 3;  // 3 == len(".go");
-	if s[i : len(s)] == ".go" {
+	if i >= 0 && s[i : len(s)] == ".go" {
 		s = s[0 : i];
 	}
 	return s + ".7";
-- 
2.48.1