Fix for Issue 64: setup.py rebuilds the distribute egg every.single.time.
Fix for Issue 64: setup.py rebuilds the distribute egg every.single.time.

--HG--
branch : distribute
extra : rebase_source : 2fe261e4ebf0fef8bb38e0d8fc9965b24cc02002

pypa/setuptools,pypa/setuptools,pypa/setuptools