title: "Cannot open include file: 'config-win.h': No such file or directory" while installing mysql-python
body: <p>I'm trying to install mysql-python in a virtualenv using pip on windows.  At first, I was getting the same error <a href="https://stackoverflow.com/questions/1706989/setting-up-virtualenv-for-django-development-on-windows">reported here</a>, but the answer there worked for me too.  Now I'm getting this following error:</p>
  
  <pre><code>_mysql.c(34) : Fatal error C1083: Cannot open include file: 'config-win.h': No such file or directory
  </code></pre>
  
  <p>If I symlink (Win7) to my regular (not the virtualenv's) python's site-packages/MySQLdb dir I get </p>
  
  <pre><code>Error loading MySQLdb module: No module named _mysql
  </code></pre>
  
  <p>I'm rather at a loss here.  Any pointers?</p>