title: GVim: find out if guifont is available
body: <p>I'm sharing my vim settings across a number of different machines, which don't neccessarily have exactly the same configuration.</p>
  
  <p>Now if my favourite font is only available on one system but not another, this leads to the problem that gvim uses a fallback which may not be the best choice.</p>
  
  <p>So: Is there a way to do multiple tries of <code>set guifont=...</code> and somehow check whether it was successful? Or is there a way to provide a list of fonts to try?</p>