Alpine bindist releases (e.g. `ghc-8.10.1-x86_64-alpine3.10-linux-integer-simple`) are now generated via GitLab CI using the Hadrian build system. GHCup currently relies on `bin/ghc` being a symlink to a versioned ghc binary (e.g. `ghc-8.10.1`) but this is not the case when using a Hadrian bindist: https://gitlab.haskell.org/ghc/ghc/-/blob/4898df1cc25132dc9e2599d4fa4e1bbc9423cda5/hadrian/bindist/Makefile#L19 It looks like GHCup is doing this to only find executable without a version suffix. Luckily Hadrian builds don't have version suffixes in the bin directory, so we should be able to remove the filter completely if there's no symlink: https://gitlab.haskell.org/haskell/ghcup-hs/-/blob/8f4ef488917838c3760749f83d418e694c9b2720/lib/GHCup/Utils.hs#L420-426