From f9706f970f4da311d2e5e00548aa9bf38457ada9 Mon Sep 17 00:00:00 2001
From: Sebastien Binet <binet@cern.ch>
Date: Mon, 25 Jun 2018 18:29:51 +0200
Subject: [PATCH]  interp: use correct GOPATH from go/build.Default (#2)

This CL uses go/build.Default.GOPATH to infer the correct value for
 $GOPATH at build time.

 Previously, pkgDir would fail if somebody were to build and test
 containous/gi from a different GOPATH location (e.g. GOPATH=/build/go)
---
 interp/src.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/interp/src.go b/interp/src.go
index 0c319c98..cc7c6d7e 100644
--- a/interp/src.go
+++ b/interp/src.go
@@ -1,6 +1,7 @@
 package interp
 
 import (
+	"go/build"
 	"io/ioutil"
 	"log"
 	"os"
@@ -53,7 +54,7 @@ func pkgDir(path string) string {
 	if _, err := os.Stat(dir); err == nil {
 		return dir
 	}
-	dir = os.Getenv("HOME") + "/go/src/" + path
+	dir = filepath.Join(build.Default.GOPATH, "src", path)
 	if _, err := os.Stat(dir); err != nil {
 		log.Fatal(err)
 	}