fatalf("%s should not exist in release build", p)
			}
		}
	}
}

/*
 * Tool building
 */

// mustLinkExternal is a copy of internal/platform.MustLinkExternal,
// duplicated here to avoid version skew in the MustLinkExternal function
// during bootstrapping.
func mustLinkExternal(goos, goarch string, cgoEnabled bool) bool {
	if cgoEnabled {
		switch goarch {