title: Setting the Search Path... global setting in MacVim
body: <p>Noticed an interesting GUI based setting in MacVim, that seems useful but I can't seem to find any official word on what it does exactly.</p>
  <p>It is located at <strong>Edit</strong> Menu <strong>&gt; Global Settings &gt; Search Path...</strong></p>
  <p>Once there a dialog drops down with the following:</p>
  <blockquote>
  <p>&quot;Enter search path for files&quot;</p>
  <p>Separate directory names with a comma.</p>
  </blockquote>
  <pre><code>.,/usr/include,,
  </code></pre>
  <p>From that editable line I get the clue that this appears to be a header search path. Something I would hope works with ctags, etc. But the setting I put in there don't seem to stick between open and closing just MacVim windows with out even quitting the MacVim Application.</p>
  <p>Searing Vim help only really turns up new-search-path which I am not sure how to use or set if it is even related?</p>
  <p>Is this what I think it is? The header search path. If yes then how do I set the path in my .vimrc or where needed so that the changes to it are persistent.</p>
  <p>If this is not a header search path then what does it do?</p>