Added FreeBSD/powerpc support go bohem-gc. PowerPC support already exists,
as boehm-gc runs on Darwin/ppc, Linux/ppc, NetBSD/ppc, etc, etc.
Fix: Patches below fix the problem. Peter Grehan states that a copy of the
NetBSD/ppc section is probably all that is needed (and that is what i did).
w3m which relies on boehm-gc works flawlessly.
How-To-Repeat: Build port on FreeBSD/ppc. It fails as FreeBSD/powerpc is an unknown system.
Over to maintainer