[issue42880] ctypes: variadic function call still doesn't work on Apple Silicon

[Ned Deily]

Ned Deily <nad at python.org> added the comment:

Yes, otool should work.  Something like:

$ otool -L $(python3.9 -c 'import _ctypes;print(_ctypes.__file__)')
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/lib-dynload/_ctypes.cpython-39-darwin.so:
	/usr/lib/libffi.dylib (compatibility version 1.0.0, current version 27.0.0)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1292.0.0)
	/System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation (compatibility version 150.0.0, current version 1770.106.0)

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<https://bugs.python.org/issue42880>
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