Nix it's very common to relink using patchelf, but I don't know if that makes sense linking from glibc to musl. Changing the compile environment from gcc to llv

Nix it's very common to relink using patchelf, but I don't know if that makes sense linking from glibc to musl. Changing the compile environment from gcc to llvm and/or glibc to musl, means you will be building a LOT of things from scratch because upstream Hydra only builds and caches glibc. There's nothing "wrong" with glibc, but it does cause issues where a compiled binary says `-linux-x86_64` and then doesn't work with your system's glibc. I had a tool I wanted to use in an Alpine container, and switched to Debian or Ubuntu because I didn't want to deal with the incompatibility even if Alpine is smaller and faster. I got the author to put out a paragraph in the README about alternative, non-glibc not being supported by the prebuilt binary (ghc from Ubuntu isn't static).