From 79a0c1701262dd5b581550656a562eddd342d342 Mon Sep 17 00:00:00 2001
From: Lucio De Re <lucio.dere@gmail.com>
Date: Mon, 1 Apr 2013 10:01:12 -0700
Subject: [PATCH] cmd/go: prevent packages from being cleaned more than once

If a package was listed as a dependency from multiple places, it
could have been cleaned repeatedly.

R=golang-dev, dave, rsc, seed, bradfitz
CC=golang-dev, minux.ma
https://golang.org/cl/7482043
---
 src/cmd/go/clean.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/cmd/go/clean.go b/src/cmd/go/clean.go
index ba600d3bb1..8345c9af15 100644
--- a/src/cmd/go/clean.go
+++ b/src/cmd/go/clean.go
@@ -106,6 +106,8 @@ func clean(p *Package) {
 	if cleaned[p] {
 		return
 	}
+	cleaned[p] = true
+
 	if p.Dir == "" {
 		errorf("can't load package: %v", p.Error)
 		return
-- 
2.48.1