pkg, ok := loaded.pkgCache.Get(path)
	if !ok {
		return ""
	}
	return pkg.why()
}

// WhyDepth returns the number of steps in the Why listing.
// If there is no reason for the package to be in the current build,
// WhyDepth returns 0.
func WhyDepth(path string) int {
	n := 0
	pkg, _ := loaded.pkgCache.Get(path)
	for p := pkg; p != nil; p = p.stack {
		n++
	}
	return n