gotest: use $GCFLAGS like make does

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5297044

diff --git a/src/cmd/gotest/gotest.go b/src/cmd/gotest/gotest.go
index b03e79f00a9cbf907caa16e0ac59158c2bca69b4..d5752e76ed6bead7aca1f1cca84cf92a7247bbe3 100644 (file)
--- a/src/cmd/gotest/gotest.go
+++ b/src/cmd/gotest/gotest.go
@@ -153,8 +153,12 @@ func setEnvironment() {
        if gc == "" {
                gc = O + "g"
        }
-       XGC = []string{gc, "-I", "_test", "-o", "_xtest_." + O}
-       GC = []string{gc, "-I", "_test", "_testmain.go"}
+       var gcflags []string
+       if gf := strings.TrimSpace(os.Getenv("GCFLAGS")); gf != "" {
+               gcflags = strings.Fields(gf)
+       }
+       XGC = append([]string{gc, "-I", "_test", "-o", "_xtest_." + O}, gcflags...)
+       GC = append(append([]string{gc, "-I", "_test"}, gcflags...), "_testmain.go")
        gl := os.Getenv("GL")
        if gl == "" {
                gl = O + "l"