libffi: Require Meson >= 1.9.2 for MSVC/ARM64 toolchain

[lb90]

Fixes #2469

[lb90]

Note: this is based on https://gitlab.freedesktop.org/gstreamer/meson-ports/libffi/-/blob/meson/src/meson.build?ref_type=heads but the licensing is unclear. Maybe we can ask @nirbheek?

[lb90]

Ci failures look unrelated to the PR:

• Alpine (riscv64): libffi test failures
• MacOS (arm64): libffi test failures
• VisualStudio-clang-cl: libffi test timeout

[xclaesse]

I marked the fix in Meson for backport in 1.9.2. TBH, I'm not sure we want to maintain workarounds like that, I would just error('Windows aarch64 requires Meson >= 1.9.2'). On Windows it's trivial to pip install latest Meson, unlike Linux distro where it can take the age of the universe to update a package (I'm still building products on Ubuntu 20.04...).

[lb90]

Yeah, makes sense! Thanks a lot for backporting

Should I add the error('Windows aarch64 requires Meson >= 1.9.2'), then? I don't know if it's worth upgrading the wrap version number just for that.

[xclaesse]

Should I add the error('Windows aarch64 requires Meson >= 1.9.2'), then? I don't know if it's worth upgrading the wrap version number just for that.

I think that's simple enough that it's worth it, to avoid others hitting the same issue. We already do that kind of version checks.