Merged revisions 65681-65682,65684 via svnmerge from

Merged revisions 65681-65682,65684 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r65681 | thomas.heller | 2008-08-14 21:10:48 +0200 (Do, 14 Aug 2008) | 4 lines

  issue #3554: ctypes.string_at and ctypes.wstring_at must use the
  pythonapi calling convention so that the GIL is held and error return
  values are checked.
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  r65682 | thomas.heller | 2008-08-14 22:04:38 +0200 (Do, 14 Aug 2008) | 2 lines

  Try to fix the test on 64-bit platforms.
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  r65684 | thomas.heller | 2008-08-14 22:19:18 +0200 (Do, 14 Aug 2008) | 2 lines

  Disable the test until I have one that works.
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