[py-dev] Greenlets fixed

[Armin Rigo]

Hi,

'py.magic.greenlet' wasn't working properly on MacOSX.  This notice is to tell
you that I found and fixed the problem.

It wasn't specific to OSX, but to various details of the compiler and the
architecture, so it showed up on OSX and by chance not on Linux/PC.  If you
had problems on other platforms (typically getting RuntimeError: maximum
recursion depth exceeded), it would have been fixed too.


Armin