Support for linux/arm64 wheels

[jbeirer]

Hi @gipert and @stewartboogert,

I see there are no wheels being built for linux/arm64, would it be possible to add those?

Currently my linux/arm64 docker builds are failing as a consequence, and it would be good if I could avoid messing with the dependencies.

Thanks!

[jbeirer]

Maybe something like #244 is already sufficient?

[ManuelHu]

Maybe something like #244 is already sufficient?

quite certainly not. pyg4ometry uses a custom docker manylinux base image with dependencies, that would have to be built (and pushed) for arm64 beforehand.

see also

pyg4ometry/pyproject.toml

Lines 158 to 164 in 5135858

	[tool.cibuildwheel]
	build = ["*macosx*", "*manylinux_x86_64", "*windows*"]
	skip = ["pp*", "cp36-*", "cp37-*"]
	[tool.cibuildwheel.linux]
	archs = ["auto"]
	manylinux-x86_64-image = "g4edge/manylinux2014_x86_64:latest"

I have never done that personally (and I don't have access to do so), but it certainly is not as easy as just changing some lines in the CI job here 🫤

[gipert]

Hi @jbeirer, as @ManuelHu mentioned we would need to build and deploy a new base image for cbuildwheel. I wonder if adding arm64 here:

https://github.com/g4edge/dockerfiles/blob/e62683473483c731afe1def8f73edf3d23d884bd/bin/build-and-deploy.sh#L11

would be enough. If yes, we would then need to include the image in this list:

pyg4ometry/pyproject.toml

Line 159 in 5135858

build = ["*macosx*", "*manylinux_x86_64", "*windows*"]

[jbeirer]

Thanks both, that would be great! Let me know if I can help with anything :)

[ManuelHu]

I wonder if adding arm64 here

it should be aarch64, but yes, that (hopefully) might just work