python - be: Fix build on darwin.

Log Message:
-----------
Fix build on darwin.

Modified Files:
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be:
setup.py (r1.14 -> r1.15)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/be/setup.py.diff?r1=1.14&r2=1.15)
be/lib:
ldistutils.py (r1.7 -> r1.8)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/python/be/lib/ldistutils.py.diff?r1=1.7&r2=1.8)