title: Haskell install and use packages
body: <p>I want to use in my haskell project xml library (http://hackage.haskell.org/package/xml)</p>
  
  <p>I downloaded it.then try to build and install:</p>
  
  <pre><code>runhaskell Setup.hs configure
  
  runhaskell Setup.hs build
  
  runhaskell Setup.hs install
  </code></pre>
  
  <p>All ok. There are no errors. When i try import modules from this lib to my project, for example:</p>
  
  <pre><code>import Text.XML.Light.Cursor
  </code></pre>
  
  <p>I get error:</p>
  
  <pre><code>/home/shk/dev/src/XMPP.hs:8:8:
      Could not find module `Text.XML.Light.Cursor':
        Use -v to see a list of the files searched for.
  Failed, modules loaded: none.
  </code></pre>
  
  <p>What's wrong? How can i install and use library in haskell?</p>
  
  <p>Thank you.</p>