We now fake out the native libgcc.mk + GNU autoconf'ed Makefile.
This gives us the flexability we will need to support our new arches
(StrongARM, Sparc64, PowerPC, and IA-64). If this new way proves to
be too much a hassle, I still have a close-to-being-finished version
that is more like the 2.95 version of this file.
