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From e1382a731a726293e30901038c6870fa77ef6095 Mon Sep 17 00:00:00 2001
From: Angelo Compagnucci <angelo@amarulasolutions.com>
Date: Tue, 8 May 2018 16:08:44 +0200
Subject: [PATCH] build.go: explicit option for crosscompilation
Actually if GOHOSTOS == GOOS || GOHOSTARCH == GOARCH the go build system
assume it's not cross compiling and uses the same toolchain also for the
bootstrap. This is a problem in case the cross compilation mandates a
different toolchain for bootstrap and target. This patch adds
GO_ASSUME_CROSSCOMPILING varible to assure that in case of cross
compilation CC_FOR_TARGET can be different from CC.
Signed-off-by: Angelo Compagnucci <angelo@amarulasolutions.com>
Signed-off-by: Anisse Astier <anisse@astier.eu>
---
src/cmd/dist/build.go | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/cmd/dist/build.go b/src/cmd/dist/build.go
index 99d1db5..eb4097f 100644
--- a/src/cmd/dist/build.go
+++ b/src/cmd/dist/build.go
@@ -252,12 +252,13 @@ func xinit() {
// $CC_FOR_goos_goarch, if set, applies only to goos/goarch.
func compilerEnv(envName, def string) map[string]string {
m := map[string]string{"": def}
+ crosscompiling := os.Getenv("GO_ASSUME_CROSSCOMPILING")
if env := os.Getenv(envName); env != "" {
m[""] = env
}
if env := os.Getenv(envName + "_FOR_TARGET"); env != "" {
- if gohostos != goos || gohostarch != goarch {
+ if gohostos != goos || gohostarch != goarch || crosscompiling == "1" {
m[gohostos+"/"+gohostarch] = m[""]
}
m[""] = env
--
2.7.4
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