type MyInt int

type Time struct{}

type S struct {
	// Deprecated: use PublicTime.
	Public     *int
	private    *int
	PublicTime Time
}

// Deprecated: use URI.
type URL struct{}

type EmbedURLPtr struct {
	*URL
}

type S2 struct {
	// Deprecated: use T.
	S
	Extra bool
}

var X0 int64

var (
	Y int
	X I
)

type Namer interface {
	Name() string
}

	}
	if crawled[url] {
		return
	}
	crawled[url] = true

	wg.Add(1)
	go func() {
		urlq <- url
	}()
}

func addProblem(url, errmsg string) {
	msg := fmt.Sprintf("Error on %s: %s (from %s)", url, errmsg, linkSources[url])
	if *verbose {
		log.Print(msg)
	}
	problems = append(problems, msg)
}

func crawlLoop() {
	for url := range urlq {
		if err := doCrawl(url); err != nil {