misc/cgo/testcshared: don't overwrite cc in parallel runs

Fixes golang#22176 Change-Id: If47ec9a25da6b480868d8eeccc518dc97d48bda7 Reviewed-on: https://go-review.googlesource.com/69230 Reviewed-by: Alex Brainman <[email protected]>
sunmatus · Oct 9, 2017 · 24f9db7 · 24f9db7
1 parent e8a27da
commit 24f9db7
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/misc/cgo/testcshared/cshared_test.go b/misc/cgo/testcshared/cshared_test.go
@@ -210,7 +210,9 @@ func runExe(t *testing.T, env []string, args ...string) string {
 
 func runCC(t *testing.T, args ...string) string {
 	t.Helper()
-	return run(t, nil, append(cc, args...)...)
+	// This function is run in parallel, so append to a copy of cc
+	// rather than cc itself.
+	return run(t, nil, append(append([]string(nil), cc...), args...)...)
 }
 
 func createHeaders() error {