21:   "is a directory",
	22:   "invalid argument",
	23:   "too many open files in system",
	24:   "too many open files",
	25:   "inappropriate ioctl for device",
	26:   "text file busy",
	27:   "file too large",
	28:   "no space left on device",
	29:   "illegal seek",
	30:   "read-only file system",
	31:   "too many links",
	32:   "broken pipe",
	33:   "numerical argument out of domain",

	21:   "is a directory",
	22:   "invalid argument",
	23:   "too many open files in system",
	24:   "too many open files",
	25:   "inappropriate ioctl for device",
	26:   "text file busy",
	27:   "file too large",
	28:   "no space left on device",
	29:   "illegal seek",
	30:   "read-only file system",
	31:   "too many links",
	32:   "broken pipe",
	33:   "numerical argument out of domain",

	21:   "is a directory",
	22:   "invalid argument",
	23:   "too many open files in system",
	24:   "too many open files",
	25:   "inappropriate ioctl for device",
	26:   "text file busy",
	27:   "file too large",
	28:   "no space left on device",
	29:   "illegal seek",
	30:   "read-only file system",
	31:   "too many links",
	32:   "broken pipe",
	33:   "numerical argument out of domain",

	21:   "is a directory",
	22:   "invalid argument",
	23:   "too many open files in system",
	24:   "too many open files",
	25:   "inappropriate ioctl for device",
	26:   "text file busy",
	27:   "file too large",
	28:   "no space left on device",
	29:   "illegal seek",
	30:   "read-only file system",
	31:   "too many links",
	32:   "broken pipe",
	33:   "numerical argument out of domain",

		}
		fs = nil
		// Either side of the :: can be empty. We don't want empty
		// fields to feature in the final normalized address.
		if lhs != "" {
			fs = append(fs, lhs)
		}
		fs = append(fs, zeros[:8-nblocks]...)
		if rhs != "" {
			fs = append(fs, rhs)
		}
		s = strings.Join(fs, ":")
	default:
		// Too many ::

	{22, "EINVAL", "invalid argument"},
	{23, "ENFILE", "too many open files in system"},
	{24, "EMFILE", "too many open files"},
	{25, "ENOTTY", "inappropriate ioctl for device"},
	{26, "ETXTBSY", "text file busy"},
	{27, "EFBIG", "file too large"},
	{28, "ENOSPC", "no space left on device"},
	{29, "ESPIPE", "illegal seek"},
	{30, "EROFS", "read-only file system"},
	{31, "EMLINK", "too many links"},
	{32, "EPIPE", "broken pipe"},

	{22, "EINVAL", "invalid argument"},
	{23, "ENFILE", "too many open files in system"},
	{24, "EMFILE", "too many open files"},
	{25, "ENOTTY", "inappropriate ioctl for device"},
	{26, "ETXTBSY", "text file busy"},
	{27, "EFBIG", "file too large"},
	{28, "ENOSPC", "no space left on device"},
	{29, "ESPIPE", "illegal seek"},
	{30, "EROFS", "read-only file system"},
	{31, "EMLINK", "too many links"},
	{32, "EPIPE", "broken pipe"},

fi

# Check if size is too big. TFCI_WHL_SIZE_LIMIT is in find's format, which can be
# 'k' for kilobytes, 'M' for megabytes, or 'G' for gigabytes, and the + to indicate
# "anything greater than" is added by the script.
if [[ "$TFCI_WHL_SIZE_LIMIT_ENABLE" == "1" ]] && [[ -n "$(find . -iname "*.whl" -size "+$TFCI_WHL_SIZE_LIMIT")" ]]; then
  echo "Error: Generated wheel is too big! Limit is $TFCI_WHL_SIZE_LIMIT"

	20:  "not a directory",
	21:  "is a directory",
	22:  "invalid argument",
	23:  "too many open files in system",
	24:  "too many open files",
	25:  "inappropriate ioctl for device",
	26:  "text file busy",
	27:  "file too large",
	28:  "no space left on device",
	29:  "illegal seek",
	30:  "read-only file system",
	31:  "too many links",
	32:  "broken pipe",
	33:  "numerical argument out of domain",

	return strings.Split(path, string(ListSeparator))
}

func abs(path string) (string, error) {
	return unixAbs(path)
}

func join(elem []string) string {
	// If there's a bug here, fix the logic in ./path_plan9.go too.
	for i, e := range elem {
		if e != "" {
			return Clean(strings.Join(elem[i:], string(Separator)))
		}
	}
	return ""
}

func sameWord(a, b string) bool {
	return a == b