// discarding the result of a full iteration of loading.)
				continue
			}
		}

		inRoots := map[*loadPkg]bool{}
		for _, path := range rootPkgs {
			root := ld.pkg(ctx, path, pkgIsRoot)
			if !inRoots[root] {
				ld.roots = append(ld.roots, root)
				inRoots[root] = true
			}
		}

		// ld.pkg adds imported packages to the work queue and calls applyPkgFlags,

	if err != nil {
		log.Fatal(err)
	}
	const goosPrefix = `var knownOS = map[string]bool{`
	inGOOS := false
	for _, line := range strings.Split(string(data), "\n") {
		if strings.HasPrefix(line, goosPrefix) {
			inGOOS = true
		} else if inGOOS && strings.HasPrefix(line, "}") {
			break
		} else if inGOOS {
			goos := strings.Fields(line)[0]
			goos = strings.TrimPrefix(goos, `"`)
			goos = strings.TrimSuffix(goos, `":`)