zig-overlay/templates/compiler-dev/flake.nix

{
  description = "Zig compiler development.";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    flake-utils.url = "github:numtide/flake-utils";

    # Used for shell.nix
    flake-compat = { url = github:edolstra/flake-compat; flake = false; };
  };

  outputs = { self, nixpkgs, flake-utils, ... }@inputs:
    flake-utils.lib.eachDefaultSystem (system:
      let pkgs  = import nixpkgs { inherit system; };
      in {
        devShells.default = pkgs.mkShell {
          nativeBuildInputs = with pkgs; [
            cmake
            gdb
            libxml2
            ninja
            qemu
            wasmtime
            zlib
          ] ++ (with llvmPackages_14; [
            clang
            clang-unwrapped
            lld
            llvm
          ]);

          hardeningDisable = [ "all" ];
        };

        # For compatibility with older versions of the `nix` binary
        devShell = self.devShells.${system}.default;
      }
  );
}