My Aim = qt on raspberry-pi
So far qt is running on the target OK, both widgets and qml
Now trying to add qwt to the mix

Ubuntu 12.04
Qt 5.3.0
qwt 6.0.1 - no changes to .pri .pro

QMake version 2.01a - Using Qt version 4.8.1 in /usr/lib/i386-linux-gnu
.... OR ...
QMake version 3.0 - Using Qt version 5.3.0 in /mnt/rasp-pi-rootfs/usr/local/qt5pi/lib

qmake 3.0 runs OK, but the following 'make' gives this error:

......
cd designer/ && ( test -e Makefile || /usr/local/qt5pi/bin/qmake /home/mike/pi/qwt6/qwt-6.1.0/designer/designer.pro -o Makefile ) && make -f Makefile
Project ERROR: Unknown module(s) in QT: designer
make: *** [sub-designer-make_first-ordered] Error 3
mike@i5:~/pi/qwt6/qwt-6.1.0$

Using qmake 2.01a completes 'qmake', 'make' and 'make install' successfully

I have seen that when using qmake 3.0 there is no Makefile or .pro file in the 'designer' directory, the correct files are however in 'src', 'textengines' etc.

I'm stumped, any help welcomed!