This may be intentional, I would not know, anyway I thought you guys may
be interested in knowing that the aforementioned kernel sources for PPC64
(which is to say that the relevant directory in the kernel source is
include/asm-ppc64) lack agp.h and rtc.h. This causes the kernel build to
fail whenever CONFIG_AGP and CONFIG_RTC (or CONFIG_GEN_RTC) are set,
there isn't an AGP implementation in the ppc64 kernel as of yet.
talked to benh about it today.
likewise CONFIG_RTC isn't valid. (ppc is the same wrt the rtc)