In reply to @sternenseemann:systemli.org
ners: it would already be helpful if you could open an issue for the problem and obtain the contents of config.log (written by autoconf). You can get that by building witih --keep-failed.

sterni: i tried

pkgs.haskell.lib.overrideCabal (pkgs.haskellPackages.callCabal2nix "liquid-haskell-app" ./liquid-haskell-app {}) (old: {
  nativeBuildInputs = (old.nativeBuildInputs or []) ++ [ pkgs.z3 ];
  doHaddock = false;
})

but that fails with a type error:

  error: function 'anonymous lambda' called with unexpected argument 'nativeBuildInputs'

In reply to @tks_123:matrix.org
Is there a way to add a haskell package as a flake (i.e. some other haskell project with its own flake.nix) into the haskellPackages of my own haskell project?

so the 25.11 "default" GHC is 9.10, but LLVM only has 18-20 which is incompatible. is this intentional, or is LLVM 15 supposed to be in nixpkgs just to support 9.10 -fllvm?

i back-searched this chat for LLVM but only found conversation on bumping LLVM 12 -> 15

error: Package ‘hip-1.5.6.0’ in /nix/store/aqhcr0kv7d91rfm0ca77rbakjk5gkbq6-source/pkgs/development/haskell-modules/hackage-packages.nix:330406 is marked as broken, refusing to evaluate.

       a) To temporarily allow broken packages, you can use an environment variable
          for a single invocation of the nix tools.

            $ export NIXPKGS_ALLOW_BROKEN=1

          Note: When using `nix shell`, `nix build`, `nix develop`, etc with a flake,
                then pass `--impure` in order to allow use of environment variables.

       b) For `nixos-rebuild` you can set
         { nixpkgs.config.allowBroken = true; }
       in configuration.nix to override this.

       c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
         { allowBroken = true; }
       to ~/.config/nixpkgs/config.nix.


       note: trace involved the following derivations:
       derivation 'mh26'