title: missing common_matlab.h when compiling a .cpp/mex file
body: <p>I am trying to compile a .cpp file to generate a .mex file through MATLAB, however I get the following error</p>
  
  <pre><code>myFileName.cpp:20:27: fatal error: common_matlab.h: No such file or directory
   #include "common_matlab.h"
  </code></pre>
  
  <p>After a search on the web I have not found any info about this header. Is it a standard header file in mex compiling process?</p>