Should be as simple as specifying the proper mkspec e.g :
qmake -spec win32-msvc
Quick list of mkspec you may try to work with MSVC :

  • win32-msvc
  • win32-msvc.net
  • win32-msvc2002
  • win32-msvc2003
  • win32-msvc2005
  • win32-msvc2008

Note that you can find the valid mkspec names in the mkspecs directory of your Qt installation.