cmd/go: given better error when -race is used without cgo
Fixes #12844.
Change-Id: Id51b24aae239fd2e1fb1cd0bc9fe443186301044
Reviewed-on: https://go-review.googlesource.com/15440
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/src/cmd/go/build.go b/src/cmd/go/build.go
index 54b6552..0166e91 100644
--- a/src/cmd/go/build.go
+++ b/src/cmd/go/build.go
@@ -3341,6 +3341,10 @@
fmt.Fprintf(os.Stderr, "go %s: -race is only supported on linux/amd64, freebsd/amd64, darwin/amd64 and windows/amd64\n", flag.Args()[0])
os.Exit(2)
}
+ if !buildContext.CgoEnabled {
+ fmt.Fprintf(os.Stderr, "go %s: -race requires cgo; enable cgo by setting CGO_ENABLED=1\n", flag.Args()[0])
+ os.Exit(2)
+ }
buildGcflags = append(buildGcflags, "-race")
buildLdflags = append(buildLdflags, "-race")
if buildContext.InstallSuffix != "" {
