title: Show or log preprocessor macros during build
body: <p>Is it possible to log or print preprocessor macros in XCode to the build results?</p>
  
  <p>I want to see the current defined macros during a build.</p>
  
  <p>For example if I have defined <em>DEBUG</em> and <em>TESTSERVER</em> as preprocessor macro there should be some lines in the build results like:</p>
  
  <ul>
  <li>Compile Class.m ....  </li>
  <li>GenerateDSYMFile .....  </li>
  <li><strong>Used macros: DEBUG, TESTSERVER...</strong></li>
  </ul>
  
  <p>Maybe there is custom shell script that could be executed after build.</p>