args @ { fetchurl, ... }:
rec {
  baseName = ''clx'';
  version = ''20170227-git'';

  description = ''An implementation of the X Window System protocol in Lisp.'';

  deps = [ ];

  src = fetchurl {
    url = ''http://beta.quicklisp.org/archive/clx/2017-02-27/clx-20170227-git.tgz'';
    sha256 = ''0zgp1yqy0lm528bhil93ap7df01qdyfhnbxhckjv87xk8rs0g5nx'';
  };

  overrides = x: {
    postInstall = ''
        echo "$CL_SOURCE_REGISTRY"
        NIX_LISP_PRELAUNCH_HOOK='nix_lisp_run_single_form "(asdf:load-system :clx)"' "$out/bin/clx-lisp-launcher.sh" ""
    '';
  };
}