ci update

[perazz]

This CI update is necessary to prepare a fpm v0.11.0 release.

• bump macOS compatibility to v13.0
• bump compiler to gfortran-12
• Update MacPython script to latest release

This should fix #23 #24, thank you @jalvesz @gnikit.

[jalvesz]

LGTM @perazz! Thanks!

[gnikit]

There's a few things that I am not sure about and need to thoroughly check which is why I opened #24.
They mostly have to do with the new linker paths and whether the cross-compiled libraries we are manually linking to are compatible with the ABI of gfortran-12.

That aside the version bump and the build changes should be two separate PRs, since they are conceptually different. There's a checklist in the README with the changes necessary for a version bump.

I would like to hold on merging this until I had a chance to look into the new GitHub runners and the setup build scripts I wrote for macos in more detail. I will get to it during the weekend.

[perazz]

OK so I reverted the fpm version bump and that will be part of a separate PR.

[perazz]

I think you're right to check @gnikit. Please note that:

• the deployment target was hardcoded in the script and I believe it was inaccurate, since the wheel was targeting macOS 11:

    # The gfortran downloads build for macos 10.9
    local target="10_9"

I've updated it with the latest release and now it's general:

    # macOS 32-bit arch is i386
    [ "$plat" == "i686" ] && plat="i386"
    local target=$(echo $MACOSX_DEPLOYMENT_TARGET | tr .- _)

• it seems like the cross-compiler is still gfortran 11.3.0 and the outputs are unchanged: from the workflow log,

before_build returns

@@@ FC: /opt/gfortran-darwin-arm64-cross/bin/arm64-apple-darwin20.0.0-gfortran
  + echo '@@@ FC:' /opt/gfortran-darwin-arm64-cross/bin/arm64-apple-darwin20.0.0-gfortran
  + echo '@@@ FC_ARM64_LDFLAGS:' -L/opt/gfortran-darwin-arm64-cross/lib/gcc/arm64-apple-darwin20.0.0/11.3.0 -Wl,-rpath,/opt/gfortran-darwin-arm64-cross/lib/gcc/arm64-apple-darwin20.0.0/11.3.0
@@@ FC_ARM64_LDFLAGS: -L/opt/gfortran-darwin-arm64-cross/lib/gcc/arm64-apple-darwin20.0.0/11.3.0 -Wl,-rpath,/opt/gfortran-darwin-arm64-cross/lib/gcc/arm64-apple-darwin20.0.0/11.3.0

so it looks like the current values should still be valid.

[gnikit]

I looked into this during the weekend, the sdist build is broken on my ARM MacOS, which is really concerning.

[perazz]

• build wheels from macos-13 to require >=13 compatibility. The cross-compiler does not appear to work on macos-14 (likely due to MACOSX_DEPLOYMENT_TARGET = 13.0)
• fix warnings on the classifiers

@gnikit would you mind to review this one? I'm asking here in the comment as I don't have permission to request you as a reviewer.