a) ppc KGDB builds only on two subarch; say so in Kconfig
	b) ide-pmac.c can't be a module; make it dependent on IDE=y.
	c) a bunch of isdn drivers is broken on ppc; marked as such
	d) oaknet is broken; marked as such (includes on files that do not
exist, etc.)
	e) buslogic and cyber2000 are broken on sparc64
	f) s3trio framebuffer is broken
	g) usual 8250-based serial is broken on sparc64; in principle it might
be worth supporting (there are PCI cards of that sort), for now marked as
broken (no asm/serial.h, to start with).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>