cc @jaraco / @pfmoore: what are your thoughts on removing /EXPORT from setuptools/distutils on Python 3.15+?

TBH, I have no view. My knowledge of C is very out of date, so I wouldn't trust anything I might say anyway...

The /EXPORT from setuptools has definitely caused Cython an amount of pain before (although some of that was self-inflicted....). It'd be nice not to have to define PyInit_ just to to make the name exist. Although I suspect we can't really avoid it in a realistic timeline.

(Edit: admittedly we also aren't the people that it's designed to help either)

Here's a version that removes some redundant defines (setting things to defaults).

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