Forward-port of ld64 PPC support

[Michael Weiser]

Hi,

I'd just quickly like to point anyone interested to
https://github.com/michaelweiser/ld64 where I've done some work to
forward-port the removed PPC support in ld64 to the latest versions.

I imagine it might provide a way to retain support for older OS Xes on
PPC without having to keep ancient versions of ld64 packages around.
Also, because the newer versions support all the switches more current
software (like compilers) expect them to have, it might help avoid
having to patch other software for the old linker.

I was trying to get llvm/clang-3.4.2 working on OS X 10.5 PPC in order
to then move on to 3.6.0 and libc++ but got stuck on a mis-linking issue
with ld64-127.2. The current version doesn't fix that but doesn't seem
to work any worse either.
-- 
Hope it's of use to someone,
Michael