title: Qt 5.12.0 MinGW 7.3 w64 cross compile from windows 64 to windows x86
body: <p>I have recently updated Qt to v 5.12.0. This version includes MinGW 7.3 W64 and there is not option to download MinGW 7.3 W32 as in previous version of Qt (see image below).</p>
  
  <p><a href="https://i.stack.imgur.com/A1CNp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/A1CNp.png" alt="Qt installer available tools"></a></p>
  
  <p>I've built my application using QtCreator 4.8.1, and it was built without issues, however I noticed that my binary file is in 64 bits, and not in 32 bits like in previous version of Qt.</p>
  
  <p>My problem is that I want to build my application for x86 platforms, but I can't find any options in Qt to do that. How can I cross compile my app for x86 using MinGW 7.3 w64 and QtCreator?</p>
  
  <p>FYI: My OS is Windows 10 x64.</p>