[TriLUG] Configure errors

[Randall Patrick Barlow]

I am trying to install KDevelop on a new Sun machine that is running 
NCSU's Red Hat Realm Kit Linux.  I get the following error upon executing

%sudo ./configure --prefix=/usr/local/

checking for X... configure: error: Can't find X includes. Please check 
your installation and add the correct paths!

Is there something that I need to install, or do I just need to point 
the configure script in the right direction for these header files?

Thanks,
Randy