[issue30353] ctypes: pass by value for structs broken on Cygwin/MinGW 64-bit

[Iryna Shcherbina]

Iryna Shcherbina added the comment:

Thank you, Erik. I have applied your new patch, and ran another build on arm64. The tests passed. Attaching the build log for more information.

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Added file: http://bugs.python.org/file46892/arm64_build_log.txt

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