OSX 10.2: Fix for Python build problems

For those of us who have the occasional need to add Python pieces to our systems, there is a small problem with the Makefile that comes with OS X 10.2.

In particular, there is an unnecessary '-arch i386' in the targets line immediately preceding the '-arch ppc' (which is necessary).

Remove this (located in /usr/lib/python2.2/config/Makefile ) and you'll be set!