func isSysErrTooManySymlinks(err error) bool {
	return errors.Is(err, syscall.ELOOP)
}

// Check if the given error corresponds to ENOTEMPTY for unix,
// EEXIST for solaris variants,
// and ERROR_DIR_NOT_EMPTY for windows (directory not empty).
func isSysErrNotEmpty(err error) bool {
	if errors.Is(err, syscall.ENOTEMPTY) {
		return true
	}
	if errors.Is(err, syscall.EEXIST) && runtime.GOOS == "solaris" {
		return true
	}

	if !ok {
		t.Fatalf("Unexpected error expecting %s", syscall.ENOTDIR)
	}
	if runtime.GOOS != globalWindowsOSName {
		pathErr = &os.PathError{Err: syscall.ENOTEMPTY}
		ok = isSysErrNotEmpty(pathErr)
		if !ok {
			t.Fatalf("Unexpected error expecting %s", syscall.ENOTEMPTY)
		}
	} else {
		pathErr = &os.PathError{Err: syscall.Errno(0x91)}
		ok = isSysErrNotEmpty(pathErr)
		if !ok {
			t.Fatal("Unexpected error expecting 0x91")

			// directory" error message. Handle this specifically
			// here.
			return errFileAccessDenied
		}
	}
	return err
}

// Reliably retries os.RemoveAll if for some reason os.RemoveAll returns
// syscall.ENOTEMPTY (children has files).
func reliableRemoveAll(dirPath string) (err error) {
	i := 0
	for {
		// Removes all the directories and files.
		if err = RemoveAll(dirPath); err != nil {

pkg syscall (darwin-386), const ENOSYS = 78
pkg syscall (darwin-386), const ENOTBLK = 15
pkg syscall (darwin-386), const ENOTCONN = 57
pkg syscall (darwin-386), const ENOTDIR = 20
pkg syscall (darwin-386), const ENOTEMPTY = 66
pkg syscall (darwin-386), const ENOTRECOVERABLE = 104
pkg syscall (darwin-386), const ENOTSOCK = 38
pkg syscall (darwin-386), const ENOTSUP = 45
pkg syscall (darwin-386), const ENOTTY = 25

pkg syscall (netbsd-arm64-cgo), const ENOTBLK = 15
pkg syscall (netbsd-arm64-cgo), const ENOTCONN = 57
pkg syscall (netbsd-arm64-cgo), const ENOTDIR = 20
pkg syscall (netbsd-arm64-cgo), const ENOTEMPTY = 66
pkg syscall (netbsd-arm64-cgo), const ENOTSOCK = 38
pkg syscall (netbsd-arm64-cgo), const ENOTSUP = 86
pkg syscall (netbsd-arm64-cgo), const ENOTTY = 25
pkg syscall (netbsd-arm64-cgo), const ENXIO = 6

pkg syscall (freebsd-riscv64), const ENOTCAPABLE Errno #53466
pkg syscall (freebsd-riscv64), const ENOTCONN = 57 #53466
pkg syscall (freebsd-riscv64), const ENOTDIR = 20 #53466
pkg syscall (freebsd-riscv64), const ENOTEMPTY = 66 #53466
pkg syscall (freebsd-riscv64), const ENOTRECOVERABLE = 95 #53466
pkg syscall (freebsd-riscv64), const ENOTRECOVERABLE Errno #53466
pkg syscall (freebsd-riscv64), const ENOTSOCK = 38 #53466

pkg syscall (freebsd-arm64), const ENOTCAPABLE Errno
pkg syscall (freebsd-arm64), const ENOTCONN = 57
pkg syscall (freebsd-arm64), const ENOTDIR = 20
pkg syscall (freebsd-arm64), const ENOTEMPTY = 66
pkg syscall (freebsd-arm64), const ENOTRECOVERABLE = 95
pkg syscall (freebsd-arm64), const ENOTRECOVERABLE Errno
pkg syscall (freebsd-arm64), const ENOTSOCK = 38
pkg syscall (freebsd-arm64), const ENOTSUP = 45

pkg syscall (darwin-arm64), const ENOSYS = 78
pkg syscall (darwin-arm64), const ENOTBLK = 15
pkg syscall (darwin-arm64), const ENOTCONN = 57
pkg syscall (darwin-arm64), const ENOTDIR = 20
pkg syscall (darwin-arm64), const ENOTEMPTY = 66
pkg syscall (darwin-arm64), const ENOTRECOVERABLE = 104
pkg syscall (darwin-arm64), const ENOTRECOVERABLE Errno
pkg syscall (darwin-arm64), const ENOTSOCK = 38
pkg syscall (darwin-arm64), const ENOTSUP = 45

pkg syscall, const ENOSPC Errno
pkg syscall, const ENOSYS Errno
pkg syscall, const ENOTBLK Errno
pkg syscall, const ENOTCONN Errno
pkg syscall, const ENOTDIR Errno
pkg syscall, const ENOTEMPTY Errno
pkg syscall, const ENOTSOCK Errno
pkg syscall, const ENOTSUP Errno
pkg syscall, const ENOTTY Errno
pkg syscall, const ENXIO Errno
pkg syscall, const EOPNOTSUPP Errno