problem installing PyQt for eric3

[Lupe]

I'm trying to install eric3 and PyQt is an intermediate step.

I got the following output:

rm -f qttest.o
rm -f *~ core *.core
g++ -c -pipe -w -O2 -fomit-frame-pointer -pipe -march=i586 -mcpu=pentiumpro
-D_REENTRANT  -DSIP_MAKE_MODULE_DLL -DQT_NO_DEBUG -DQT_THREAD_SUPPORT
-I/usr/lib/qt3/mkspecs/default -I. -I. -I/usr/local/include/python2.3
-I/usr/lib/qt3/include -I/usr/X11R6/include -I/usr/X11R6/include -o
qttest.o qttest.cpp
In file included from qttest.cpp:1:
/usr/lib/qt3/include/qgl.h:78:21: GL/glu.h: No such file or directory
make: ** [qttest.o] Erro 1
******************************************************************************
The qtgl module will not be built.
******************************************************************************

can anyone translate this to english.  Is qtgl important?  
I have a file named qgl.h in the /include directory, so what was wrong?

thanx in advance