regarding enabling of opengl on qt...plz help me..

good noon,
i am trying to enable opengl support on QT.. and iam using the following configure options..
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./configure -v -prefix /usr/Trolltech/QtEmbedded-4.6-directfb -no-webkit -opengl -plugin-gfx-directfb -qt-gfx-directfb -no-gfx-linuxfb -shared -no-qt3support -qt-zlib -qt-libtiff -qt-libpng -qt-libmng -qt-libjpeg -qt-sql-sqlite -qt-gif -qt-freetype -glib -no-openssl -no-nis -no-cups -no-iconv -no-openvg -no-sm -no-gfx-multiscreen -no-phonon -no-phonon-backend
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with this configuration...QT informs that it is building for LInux/X11 and builds without any errors... but when i try to execute any of the examples... they all are executing in X11 window instead of executing on DirectFB-X11 window...while configuring also, QT dint show me any msg of auto detecting and enabling of DirectfB.

so,i felt....since iam not specifying either of these two (-platform qws/linux-x86-g++ or -embedded x86), the qt, that iam building, might have been configured for Linux/X11...
and
this may be the reason.. that is making the applications to run on X11 window, instead of trying to detect ditectfb...

and hence i tried with following configure options and the things are happening like this...

1. if i configure for Linux/X11 (with opengl and without specifying either -platform or - embedded x86 in configure options)

• it detects OpenGL as Desktop OpenGL, but doesnt detect DirectFB installed..
  (this may be obvious since i have configured for X11.. as i felt)

2. if i include -embedded x86 and -platform qws/linux-x86-g++ (with opengl as configure
option)

• it tries to detect opengl es 1.x r 2.x..and configure fails, since i have installed opengl (mesa-7.7.1) not opengl es.(still doesnt detect directfb)

3. with all these options, if i configure it as -no-opengl..

• then it will try detecting DirectFB..

so i just wanted to know, is it possible to build this QT for DirectFB(with opengl enabled) support or QT, by default is configured for x11 itself (while building it with OpenGL) and cannot be configured for DirectFB(with OpenGL enabled) support?...plz correct me if iam wrong...

so, i just wanted to ask know your concern in this regard...if you have any idea and if you can let me know...whether i have missed any such configuration parameter in building QT for OpenGL enabled DirectFB...