args @ { fetchurl, ... }:
rec {
  baseName = ''external-program'';
  version = ''20160825-git'';

  description = '''';

  deps = [ args."trivial-features" ];

  src = fetchurl {
    url = ''http://beta.quicklisp.org/archive/external-program/2016-08-25/external-program-20160825-git.tgz'';
    sha256 = ''0avnnhxxa1wfri9i3m1339nszyp1w2cilycc948nf5awz4mckq13'';
  };

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