[ITP 1.7] PPL - The Parma Polyhedra Library 0.10.2

[David Billinghurst]

Parma Polyhedra Library (PPL) is needed to build GCC with the Graphite 
loop optimizations - http://gcc.gnu.org/install/prerequisites.html.

As the GMP maintainer, I'd like to provide ppl-0.10.2 for cygwin-1.7. 
It builds OOTB with gcc-4 and gmp-4.3.0-1.  I don't think ppl is (yet) 
provided by many linux distributions, so we need a vote.