Hardcoding ARCHFLAGS breaks the build against fink's python...
Hardcoding ARCHFLAGS breaks the build against fink's python
Fink's python is either i386 or amd64, but not universal. Setting ARCHFLAGS to the
empty string produces a successful build against both OS X python and fink python.
The modules will no longer be universal -- if that is an issue, we can change the
test to extract ARCHFLAGS from distutils.sysconfig and remove ppc if necessary.