list and resolve any symlink that
might be present in order to compare them with the current
directory.  However, if even this access is slow, you
can add an empty entry to the list to tell Git that the
subsequent entries are not symlinks and needn&#8217;t be resolved;
e.g.,
<code>GIT_CEILING_DIRECTORIES=/maybe/symlink::/very/slow/non/symlink</code>.</p>
</dd>
<dt class="hdlist1"><code>GIT_DISCOVERY_ACROSS_FILESYSTEM</code></dt>
<dd>
<p>When run in a directory that does not have ".git" repository
directory,