Adding anything in the menuconfig option General Setup/Local version will cause the Ati-Drivers package to install its module into 2.6.9-r1 instead of 2.6.9-r1[local version].
Steps to Reproduce:
1.Build a module with something in Gneral Setup/Local Version (-ifpfix for example)
3.fglrx module ends up in 2.6.9-gentoo-r1 instead of 2.6.9-gentoo-r1-ifpfix
Module is in wrong directory
Probably should have just edited the make file, would have prevented it.
I sugest that the option be removed from menuconfig, simplest solution to
prevent problems. I suspect this will break nvidia modules as well.
Quick fix is of course to just manually move the module after it has been built
to the opropriat directory in /lib/modules then run modules-update.
*** This bug has been marked as a duplicate of 67804 ***