runtime: fix windows build

TBR=austin
CC=golang-codereviews
https://golang.org/cl/167820043

diff --git a/src/runtime/crash_cgo_test.go b/src/runtime/crash_cgo_test.go
index 7877965587738af2b19e8aec53aab5d7735f0f10..5958ad8914637f9ddacc31b489638c0c8b7f0f3c 100644 (file)
--- a/src/runtime/crash_cgo_test.go
+++ b/src/runtime/crash_cgo_test.go
@@ -36,6 +36,9 @@ func TestCgoTraceback(t *testing.T) {
 }
 
 func TestCgoExternalThreadPanic(t *testing.T) {
+       if runtime.GOOS == "windows" || runtime.GOOS == "plan9" {
+               t.Skipf("no pthreads on %s", runtime.GOOS)
+       }
        got := executeTest(t, cgoExternalThreadPanicSource, nil, "main.c", cgoExternalThreadPanicC)
        want := "panic: BOOM"
        if !strings.Contains(got, want) {