title: How to set different qmake configuration depending on debug / release?
body: <p>I need to specify different output and intermediate folders in my .pro file for debug and release builds. I created a following test .pro file:</p>
  
  <pre><code>release {
    message( "release" )
  }
  debug {
    message( "debug" )
  }
  </code></pre>
  
  <p>But compiling this .pro file in Qt Creator with “debug” build leads to following output:</p>
  
  <pre><code>Project MESSAGE: release
  Project MESSAGE: debug
  </code></pre>
  
  <p>It seems that both “debug” and “release” conditions are set to <code>True</code> O_O. Is it possible to somehow handle debug and release builds separately in qmake?</p>