title: XCode 4 and XCode 3.2.6 side-by-side
body: <p>I need to build one iOS app and one Mac OS app on the same machine. Mac OS app needs to run on 10.5, and even though Apple claims you can build with the 10.6 SDK and run on 10.5 by setting the right target value, it's not true. Simple things, like the name/version of <code>libssl</code>, are different on 10.5 and 10.6 which makes this impossible.</p>
  
  <p>Anyway, so I'm about to try and install XCode 3.2.6 on the same machine as I have XCode 4 on - any tips/gotchas/guides?</p>
  
  <p>Thanks!</p>