qmake is invoked with a host architecture spec instead of the embedded linux one

Qt 4.7.4 is used, built with Sourcery G++ Lite 2011.03-41 GCC 4.5.2. When a Qt application is built with Qt Creator 2.3.0, qmake is invoked with a host architecture spec as follows,

qmake /home/qt/hello-2011/hello-2011.pro -r -spec linux-g++-32

It should be invoked with the qws/linux-arm-gnueabi-g++.

Please check the attachments for further information.