I wouldn't expect you to want to recompile your kernel on a headless
server with a small hard drive, after all the kernel source is huge
already. make xconfig requires qt-devel.....

I don't want to compile the _KERNEL_.  I need to compile some external
drivers.  If I wanted to build the kernel I'd use the .src.rpm.  The
machine I would do that on a different compute that, in any case, 
does not have many GUI applications on it.

Why not just split out a sub-package called kernel-source-xconfig that
depends on qt-devel?

ehm you cannot use kernel-source for building external drivers
against.... all the bits for that are already part of the normal
kernel(-smp) rpm.

sounds like that is the misconception here...

cool. (rpm -e kernel-source).