[Qt-embedded-interest] Configuration's failed!! QT embedded 4.5.2

[Youngwhan Kim James]

Hello.
I'm about to complile QT-embedded-4.5.2 with plugin-gfx-directfb.
I'd edit a directfb.pro file: all deleted comments about DEFINE fields.
but, if I do "./configure -embedded armv6 -plugin-gfx-directfb,  
occurred following message:

"The DirectFB screen driver functionality test failed!
You might need to modify the include and library search paths by editing
QT_CFLAGS_DIRECTFB and QT_LIBS_DIRECTFB in
/home/yhk/qt-embedded-linux-opensource-src-4.5.2/mkspecs/qws/linux- 
armv6-g++."

How can I configure?

Thanks!!