Building platform-specific extension modules

[Nathaniel Smith]

Does anyone know the proper way to teach distutils/qmdist that a
particular extension module should only be built on certain (i.e.,
POSIX) platforms?

Is it as easy as modifying the ext_modules= argument to setup()
depending on the platform that setup.py is being run on?  I'm having
worries about things like building source distributions and such.

-- Nathaniel

-- 
So let us espouse a less contested notion of truth and falsehood, even
if it is philosophically debatable (if we listen to philosophers, we
must debate everything, and there would be no end to the discussion).
  -- Serendipities, Umberto Eco