Try to turn some buildbots green by allowing test_multiprocessing to pass even if it hits the sys.exc_clear code in the threading module, and improve the test coverage by making the ctypes dependencies a bit more granular (two of the cited ctypes objects don't exist on my system)
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r79926 | nick.coghlan | 2010-04-10 10:01:54 -0500 (Sat, 10 Apr 2010) | 1 line