out, err := exec.Command("cp", "-a", src, dst).CombinedOutput()
	if err != nil {
		os.Stderr.Write(out)
	}
	return err
}

func copyLocalData(dstbase string) (pkgpath string, err error) {
	cwd, err := os.Getwd()
	if err != nil {
		return "", err
	}

	finalPkgpath, underGoRoot, err := subdir()
	if err != nil {
		return "", err
	}
	cwd = strings.TrimSuffix(cwd, finalPkgpath)

pkg syscall (linux-386), func Ftruncate(int, int64) error
pkg syscall (linux-386), func Futimes(int, []Timeval) error
pkg syscall (linux-386), func Futimesat(int, string, []Timeval) error
pkg syscall (linux-386), func Getcwd([]uint8) (int, error)
pkg syscall (linux-386), func Getdents(int, []uint8) (int, error)
pkg syscall (linux-386), func Getpeername(int) (Sockaddr, error)
pkg syscall (linux-386), func Getpgid(int) (int, error)

pkg syscall (linux-arm-cgo), func Futimes(int, []Timeval) error
pkg syscall (linux-arm-cgo), func Futimesat(int, string, []Timeval) error
pkg syscall (linux-arm-cgo), func Getcwd([]uint8) (int, error)
pkg syscall (linux-arm-cgo), func Getdents(int, []uint8) (int, error)
pkg syscall (linux-arm-cgo), func Getpeername(int) (Sockaddr, error)
pkg syscall (linux-arm-cgo), func Getpgid(int) (int, error)