title: Generate a single perl file from multiple files (.pm + .pl)
body: <p>A good example of what I would like to do is <a href="http://beyondgrep.com/install/" rel="nofollow">Ack</a>. The original sources available on github are made of several packages and one main Perl file. </p>
  
  <p>However, the author also offers a single Perl file that include all the packages. From the source I can tell this file was auto-generated and I would like to know how it is done. </p>
  
  <p>I tried to <code>git clone</code> the sources and make the module with <code>perl Makefile.PL &amp;&amp; make &amp;&amp; make install</code> but I don't get any auto-generated file. I guess the answer is somewhere else. </p>
  
  <p>Is there any tool for doing such things?</p>