[issue20160] broken ctypes calling convention on MSVC / 64-bit Windows (large structs)

[Roundup Robot]

Roundup Robot added the comment:

New changeset f75b0470168b by Steve Dower in branch '2.7':
Issue #20160: broken ctypes calling convention on MSVC / 64-bit Windows (large structs). Patch by mattip
https://hg.python.org/cpython/rev/f75b0470168b

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nosy: +python-dev

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<http://bugs.python.org/issue20160>
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