title: How do you configure the Vim plugin YouCompleteMe to read a Makefile?
body: <p>I am trying to get <a href="http://valloric.github.io/YouCompleteMe/" rel="nofollow">YouCompleteMe</a> running with my Qt project.  The problem is, I have a lot of sub-projects (hundreds) that all have different compiler flags.  Because of this, one global <code>.ycm_extra_conf.py</code> is not sufficient.  Each sub-project has a <code>Makefile</code> (generated by <code>qmake</code>)containing all of the compiler flags to be passed to GCC.  </p>
  
  <p>Is it possible to configure <a href="http://valloric.github.io/YouCompleteMe/" rel="nofollow">YouCompleteMe</a> to read the <code>Makefile</code> of the project instead of needing to create a different <code>.ycm_extra_conf.py</code> for each one?</p>