Julia with binary extension

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1

Does anybody has experience with using Julia on NixOS?

Julia’s package manager often installs precompiled libraries, which do not link unpatched on NixOS. I’ve tried to use autoPatchelf, like I use it on Python. However, that does not seem to work. It cannot resolve all dependencies and precompilation in Julia fails.

Using an FHS env seems to work, but I find it a bit unsatisfying.

Do you have better workarounds?

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2

FWIW, the wiki.nixos.org page on Julia also suggests using a tool like Distrobox as another workaround option.

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3

Did you try with this?

4

Well, I had nix-ld-rs set-up the whole time, but it didn’t seem to help.

programs.nix-ld = {
    enable = true;
    package = pkgs.nix-ld-rs;
  };

For reference, FHS helps:

{
  description = "A julia dev flake";

  inputs = { nixpkgs.url = "nixpkgs/nixos-unstable"; };

  outputs = { self, nixpkgs }:
    let
      supportedSystems = [ "x86_64-linux" ];
      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
      pkgs = forAllSystems (system: import nixpkgs { inherit system; });
      fhs_julia = (system:
        pkgs.${system}.buildFHSUserEnv {
          name = "julia-env";
          targetPkgs = pkgs:
            (with pkgs; [ julia gcc zlib ]);
          runScript = "bash";
        });
    in {
      devShells = forAllSystems (system: {
        default = {};
        fhs = (fhs_julia system).env;
      });
    };
}
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