Docs should include instructions for getting started on arm64 windows and/or vcpkg

[sargunv]

The three options for installing GTK4 here did not work for me on ARM: https://gtk-rs.org/gtk4-rs/stable/latest/book/installation_windows.html. All three required some x86_64 specific components.

But, I was able to get up and running by installing GTK via vcpkg.

1. Set up vcpkg: https://learn.microsoft.com/en-us/vcpkg/get_started/get-started?pivots=shell-powershell
   • I installed to D:\vcpkg; remember this path to use in env vars below
2. vcpkg install --recurse --allow-unsupported gtk libxml2 librsvg pkgconf
   • --allow-unsupported can be removed after [graphene] remove arm & windows exclusion microsoft/vcpkg#43335
3. Set environment variables:
   • GTK_LIB_DIR is D:\vcpkg\installed\arm64-windows\lib
   • PATH includes D:\vcpkg\installed\arm64-windows\bin
   • PKG_CONFIG is D:\vcpkg\installed\arm64-windows\tools\pkgconf\pkgconf.exe
   • PKG_CONFIG_PATH is D:\vcpkg\installed\arm64-windows\lib\pkgconfig

I assume similar instructions work fine on x86_64 too.

[sdroege]

This requires a Windows user to actually write those instructions and submit a PR.

Note that vcpkg's GTK is not very useful and misses various files. It's not recommended to be used by the GTK project, see gtk.org.

[sargunv]

This requires a Windows user to actually write those instructions and submit a PR.

Sure, and there's a draft of such instructions using vcpkg in the OP

Note that vcpkg's GTK is not very useful and misses various files. It's not recommended to be used by the GTK project, see gtk.org.

Would love to learn more here. Is this an inherent limitation of vcpkg, or just something someone would need to PR a fix to them? It worked well for me, but I've only validated as far as the basic relm4 getting started docs (a couple buttons and a bit of text in a window). It's very possible I just haven't exercised it enough to run into that yet.

I don't think this needs to use vcpkg, but the documentation should call out some path for ARM users. Vcpkg is what seems to have worked for me, while the existing documented options did not.

[sargunv]

Or, if we want to say making the install work for arm is an upstream problem (in gvsbuild?), the docs should at least clarify that they currently don't work for Windows ARM