title: Attempt to install Qt on OS X gives 'You need to install Xcode 5.0.0', but this version is so old it's not available
body: <p>I am a Windows/Linux developer who occasionally builds for OS X - particularly in Qt.</p>
  
  <p>I have a simple Qt project that I have been developing on Windows.  I now wish to build it on OS X.</p>
  
  <p>I am running Yosemite.  I have installed Xcode 7 and am attempting to install Qt 5.5.</p>
  
  <p>When I run the Qt installer, immediately after the prompt to log in to Qt (which is successful), I receive the following error:</p>
  
  <blockquote>
    <p>You need to install Xcode version 5.0.0.</p>
  </blockquote>
  
  <p><img src="https://i.stack.imgur.com/QfMCI.jpg" alt="Qt installation fails"></p>
  
  <p>I have attempted to locate Xcode 5.0.0 on the Apple Developer site, but this is 2 major versions behind the most recent version, and I cannot even find an installer for it.</p>
  
  <p>More to the point, I do wonder why the most recent version of Qt requires a version of Xcode that is considered so old by Apple that it's not even available.</p>
  
  <p>How do I overcome this problem so that I can get Qt installed on OS X?</p>