title: How to create framework from Xcode 4 project?
body: <p>I want to use <strong>CHDataStructures</strong> as framework: <a href="https://github.com/davedelong/CHDataStructures" rel="nofollow">https://github.com/davedelong/CHDataStructures</a>. However there is no binary of the project. </p>
  
  <p>So I assume I have to build the .a file myself using xcode. How do I do that in xcode 4? I read the documentation but it is very confusing...</p>
  
  <p>Any ideas?</p>