"netbsd":    true,
	"openbsd":   true,
	"solaris":   true,
}

// matchtag reports whether the tag matches this build.
func matchtag(tag string) bool {
	switch tag {
	case "gc", "cmd_go_bootstrap", "go1.1":
		return true
	case "linux":
		return goos == "linux" || goos == "android"
	case "solaris":
		return goos == "solaris" || goos == "illumos"
	case "darwin":