From 3011bd38196d484a09e7565f5892c069938f1e6d Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Thu, 26 Sep 2024 10:50:22 +0200
Subject: [PATCH] mksysconf: allow to override GO{ARCH,OS} using
 GO{OS,ARCH}_TARGET env vars

Makes it easier to test change.
---
 mksysconf.go | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/mksysconf.go b/mksysconf.go
index eae4fd8..c67922c 100644
--- a/mksysconf.go
+++ b/mksysconf.go
@@ -51,10 +51,18 @@ func gensysconf(in, out, goos, goarch string) error {
 }
 
 func main() {
-	goos, goarch := runtime.GOOS, runtime.GOARCH
-	if goos == "illumos" {
-		goos = "solaris"
+	goos := os.Getenv("GOOS_TARGET")
+	if goos == "" {
+		goos = runtime.GOOS
+		if goos == "illumos" {
+			goos = "solaris"
+		}
+	}
+	goarch := os.Getenv("GOARCH_TARGET")
+	if goarch == "" {
+		goarch = runtime.GOARCH
 	}
+
 	defs := fmt.Sprintf("sysconf_defs_%s.go", goos)
 	if err := gensysconf(defs, "z"+defs, goos, ""); err != nil {
 		fmt.Fprintln(os.Stderr, err)