From 9224b4c873f09c310787b12830acdb5577a099c9 Mon Sep 17 00:00:00 2001
From: Shenghou Ma <minux.ma@gmail.com>
Date: Sun, 7 Oct 2012 14:14:46 +0800
Subject: [PATCH] cmd/gc: fix output filename generation on Windows

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6610060
---
 src/cmd/gc/lex.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/cmd/gc/lex.c b/src/cmd/gc/lex.c
index 46728c904d..601f182997 100644
--- a/src/cmd/gc/lex.c
+++ b/src/cmd/gc/lex.c
@@ -2190,7 +2190,7 @@ mkpackage(char* pkgname)
 {
 	Sym *s;
 	int32 h;
-	char *p;
+	char *p, *q;
 
 	if(localpkg->name == nil) {
 		if(strcmp(pkgname, "_") == 0)
@@ -2230,6 +2230,11 @@ mkpackage(char* pkgname)
 
 	if(outfile == nil) {
 		p = strrchr(infile, '/');
+		if(windows) {
+			q = strrchr(infile, '\\');
+			if(q > p)
+				p = q;
+		}
 		if(p == nil)
 			p = infile;
 		else
-- 
2.48.1