macOS CI (and macOS dependency instructions)

[andreasabel]

configure: error: X11 libraries not found, so X11 package cannot be built

It would be good to document in README which steps to take to install the X11 dependencies on macOS.
Also a CI running on macos-latest could help ensure that these instructions are staying fresh.

What used to work is brew install libxrandr libxscrnsaver: https://github.com/teach-afp/afp-code/blob/af948f0540737c65d818372d187e19e7621917a5/.github/workflows/ci.yml#L63-L66
But this was for the Intel mac (macos-12), it is broken on the ARM image (macos-14).

[andreasabel]

On my local machine I got it to build after installing Xquartz: https://www.xquartz.org/index.html
Not sure if this is an option for CI.

[liskin]

We'll probably need someone to volunteer here as none of us in the xmonad team use MacOS much. Up until now I didn't even consider it might build or work at all.

And I wonder what the usecase is anyway. I think I tried XQuartz relatively recently and the experience was super bad. It was a thousand times slower than just running Linux in QEMU.

[andreasabel]

I can confirm that brew install --cask xquartz installs the necessary prerequisites: https://github.com/teach-afp/afp-code/pull/3/files

I only use it for teaching, mostly to run legacy code...

[geekosaur]

FWIW, what I had to do when I ran macOS (2016ish) was install XQuartz (directly) and patch xmonad and xmonad-contrib to use pkg-config. brew may obviate the patching.