title: turn on/install ctags in Macvim (having installed homebrew, oh-my-zsh, janus)
body: <p>I installed macvim using homebrew on my Mackbook Pro (lion). once that was installed I installed janus. I also installed oh-my-zsh (if that helps solve this problem).
  I can't seem to get ctags working though. In MacVim when I do Tools>Build Tags File I get:</p>
  
  <pre><code>:!ctags -R .
  ctags: illegal option -- R
  usage: ctags [-BFadtuwvx] [-f tagsfile] file ...
  
  shell returned 1 
  Press RETURN or type command to continue
  </code></pre>
  
  <p>How do I get it to work?</p>
  
  <p>Here's some additional info that may help you:</p>
  
  <pre><code>✗ ctags --version
  Exuberant Ctags 5.8, Copyright (C) 1996-2009 Darren Hiebert
    Compiled: Jul  7 2012, 01:00:53
    Addresses: &lt;dhiebert@users.sourceforge.net&gt;, http://ctags.sourceforge.net
    Optional compiled features: +wildcards, +regex
  
  ✗ which ctags
  /usr/local/bin/ctags 
  
  ✗ echo $path
  /Users/adam/.rvm/gems/ruby-1.9.3-p194@gemset/bin /Users/adam/.rvm/gems/ruby-1.9.3-p194@global/bin /Users/adam/.rvm/rubies/ruby-1.9.3-p194/bin /Users/adam/.rvm/bin /usr/local/bin /usr/bin /bin /usr/sbin /sbin /usr/X11/bin /Users/adam/.rvm/bin
  </code></pre>