Contrary to popular belief, this kernel does not "come with" these built in!
So following the instructions in:
http://www.linuxorbit.com/
modules.php?op=modload&name=Sections&file=index&req=viewarticle&artid=541&page=1
(compiling on kernel-headers), I attempted to compile. cpp fails sanity check.
I upgraded all the gcc stuff. Same.
So ...