//
// marks the file as applicable only on Windows and Linux.
//
// For each build tag it consults, shouldBuild sets allTags[tag] = true.
//
// shouldBuild reports whether the file should be built
// and whether a //go:binary-only-package comment was found.
func (ctxt *Context) shouldBuild(content []byte, allTags map[string]bool) (shouldBuild, binaryOnly bool, err error) {
	// Identify leading run of // comments and blank lines,

	default:
		return false
	}
}

// shouldbuild reports whether we should build this file.
// It applies the same rules that are used with context tags
// in package go/build, except it's less picky about the order
// of GOOS and GOARCH.
// We also allow the special tag cmd_go_bootstrap.
// See ../go/bootstrap.go and package go/build.
func shouldbuild(file, pkg string) bool {
	// Check file name for GOOS or GOARCH.