title: What are the different platforms for Qt's configure
body: <p>I'm trying to build Qt on Windows with the following command:</p>
  
  <pre>configure -static -opensource -no-webkit -no-qt3support -no-audio-backend -no-exceptions -no-opengl -no-phonon -phonon-backend</pre>
  
  <p>and I get this error:</p>
  
  <pre>Unable to detect the platform from environment. Use -platform command lineargument</pre>
  
  <p>However I don't know what are the different possible values for the "-platform" argument. I tried "win32" and "windows" but none of them are right. I can't find any reference that would list the possible values. Does anybody know what I need to put for Windows 7 (developing with Qt Creator)?</p>