"sync"
)

var buildInitStarted = false

func BuildInit() {
	if buildInitStarted {
		base.Fatalf("go: internal error: work.BuildInit called more than once")
	}
	buildInitStarted = true
	base.AtExit(closeBuilders)

	modload.Init()
	instrumentInit()
	buildModeInit()
	if err := fsys.Init(base.Cwd()); err != nil {
		base.Fatal(err)
	}

	// Make sure -pkgdir is absolute, because we run commands

	}

	if !cfg.BuildWork {
		if err := robustio.RemoveAll(b.WorkDir); err != nil {
			return err
		}
	}
	b.WorkDir = ""
	return nil
}

func closeBuilders() {
	leakedBuilders := 0
	builderWorkDirs.Range(func(bi, _ any) bool {
		leakedBuilders++
		if err := bi.(*Builder).Close(); err != nil {
			base.Error(err)
		}
		return true
	})