right now, i'm using macosx 10.2/python 2.4 
but this should affect any macosx/darwin that's building python as a library instead of a framework
meaning the symbol _environ will be completely undefined and no third party python bindings will work
from posixmodule.c
 /* On Darwin/MacOSX a shared library or framework has no access to
 ** environ directly, we must obtain it with _NSGetEnviron().
 */
however, the #ifdef that comment is contained in only takes the framework into consideration