GHC ABI mismatch for GHC 9.10.3 and HLS 2.12 and 2.13 on Arm

[fendor]

Yes, HLS 2.13 has the same issue (also Linux_UnknownLinux => deb11 on A_ARM64).

I'm running Ubuntu 24.04.3 LTS on ARM64, which falls through to Linux_UnknownLinux in the YAML for both GHC and HLS, but they point to different Debian versions (deb10 vs deb11).

Currently using this as a workaround:

ghcup install ghc 9.10.3 --url https://downloads.haskell.org/~ghc/9.10.3/ghc-9.10.3-aarch64-deb11-linux.tar.xz

Maybe the ghcup-metadata could be adjusted so that GHC and HLS resolve to the same Debian version on aarch64?

Originally posted by @LCamel in #4783

[fendor]

Please reopen, I accidentally closed as GitHub showed me for a moment that I opened this issue in the HLS repo instead of ghcup-metadata