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Just curious, is it mostly clean-up or does this have an effect in practice?

Since we are going to move to Meson as our main build backend #28506 hopefully soon, how important do you think this is?

Do you think the equivalent is needed in meson.build files? IIRC I mostly try to mirror setup.py files when writing meson.build files but I may have tweaked a few things in a few places.

@lesteve I also updated the meson files, except in one place where it loops over files and the numpy include does not really cost anything. What costs, is the import_array as in makes the *.c file larger.

I have to say, I was surprised how rarely we really need import_array, as we are mainly using memoryviews instead of cnp.array.

Great if you updated the meson.build files, I missed this somehow!

Alright, let's auto-merge when green. Thanks all!