aarch32 support

[Zuzu-Typ]

I'd like to suggest adding support for aarch32 (ARMv7) builds to cibuildwheel. Although this architecture has been superseded by aarch64 (ARMv8), a lot of devices still use aarch32. First and foremost the Raspberry Pi line of products (or more specifically, their default OS).

If I understand the architecture correctly, ARMv8 chips are also backwards-compatible with aarch32, meaning the latter should run on those devices too.

What are your thoughts on this?
(I'm sorry if I have overlooked this being suggested before. I only did a brief search)

[joerick]

If you're looking for wheels for Raspberry Pi, I recommend you check out the piwheels project. They're set up for this exact use case.

[joerick]

Otherwise, it would require somewhere to run the CI, a new manylinux image, and support here. The question would be if it's worth the community effort to support another platform, given that the piwheels project seems to be doing such a great job!