title: Where to get macos SDK 10.6 for Xcode?
body: <p>I am having <code>Xcode 4.4</code> on OS X Lion. I'd like to install the Mac 10.6 SDK - also known as macosx10.7 SDK - because I need to compile openFrameworks.</p>
  
  <p>I found that I need to download additional tools from <a href="https://developer.apple.com/downloads/index.action" rel="noreferrer">this site</a>.  However I didn't find any 10.6 SDK there. I also tried looking in Xcode Preferences -> Downloads -> Components, but there is no way.</p>
  
  <p>I am wondering how can I install previous SDKs for Xcode?</p>