Does this support building GTK for ARM?

[jmeans319]

It looks like the only platforms supported are x64 and x86, so I'm guessing it doesn't. Am I missing an easy solution?

[danyeaw]

Hi @jmeans319, thanks for the question! Unfortunately, we don't currently have support for arm64. I think it is probably possible to build for it using the Visual Studio command line tools at vcvarsamd64_arm.bat and add a new option for the architecture. Once that is done, I'm not sure if everything will just compile, or we are going to run in to some incompatibilities with some of the libraries.

I do not have an arm64 Windows device, and GitHub Actions doesn't yet provide a runner we could test on.

If you are interested in helping to add arm64 support, we would be glad to work with you.

[jmeans319]

Thanks for the quick reply! I think we've decided to go down a different path for now, but I may be interested in helping to add support at some point in the future (I have an arm64 Windows device to test on!)

[jmeans319]

I'm back to playing with this again, and I'm running into several compatibility issues with the libraries. For example, the Makefile for zlib hardcodes a base address of 0x5A4C0000 (~1.5 GB), but ARM images can't have a base address of under 4GB. Is there any way to get the platform we're building for before you specify the patches in the projects __init__()?

[Biswa96]

msys2 mingw-packages provide ARM64 binaries for zlib and there are some patches with it https://github.com/msys2/MINGW-packages/tree/master/mingw-w64-zlib. I am not sure if that helps here.