PATH_REMOVE_DIRECTORY

;;; Remove a directory.
  ;;; Return `errno::notempty` if the directory is not empty.
  ;;; Note: This is similar to `unlinkat(fd, path, AT_REMOVEDIR)` in POSIX.
  (@interface func (export "path_remove_directory")
    (param $fd $fd)
    ;;; The path to a directory to remove.
    (param $path string)
    (result $error (expected (error $errno)))
  )