I'm sure everybody understands "minimum build" in his own way. Here is how i do my minimum build (e.g. Qt 4.5.2).

Qt Code: 
  1. ./configure -prefix /usr/local/qt-4.5.2 -nomake demos -nomake examples -no-qt3support 
  2. -no-accessibility -no-phonon -no-phonon-backend -no-webkit
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But it may differ from your needs, because i don't know what kind of application you want to develop.