title: How to install geos on debian raspberry pi
body: <p>Hi I am trying to install geos on a raspberry pi running rasbian wheezy so that I can include the shapely modules in my python scripts. 
  I tried using: 
  <code>git clone git://git.debian.org/git/pkg-grass/geos</code></p>
  
  <p>this downloads properly, but when I try to run my python script it gives me a traceback error saying 
  <code>OSError: Could not find library geos_c or load any of its variants ['libgeos_c.so.1', 'libgeos_c.so']</code></p>
  
  <p>have I put geos in the wrong place? is there a special way to build the files?
  Thanks for your help!</p>