How to build Xcode projects with qmake
Here you can find a HowTo that describes how to build Xcode project files with qmake.
qmake -project
qmake -spec macx-xcode
A german forum for Qt can be found here.
How to build Qt Appications using Xcode and qmake.
Under Linux qmake is used as followed:
qmake -project
qmake -spec linux-g++