I have tried running ./configure as both my user and as root and I keep getting this error.

Creating qmake. Please wait...
gmake: Nothing to be done for `first'.
Basic XLib functionality test failed!
You might need to modify the include and library search paths by editing
QMAKE_INCDIR_X11 and QMAKE_LIBDIR_X11 in /home/Todd/Download/qt-x11-opensource-src-4.5.1/mkspecs/linux-g++.
Any idea what I need to do for this? I don't understand what it needs me to add. Thanks for any help you have!