anchor.diff: -{ fetchurl, stdenv, pkgconfig, gnome3, gtk3, atk, gobject-introspection
  -, spidermonkey_60, pango, readline, glib, libxml2, dbus, gdk-pixbuf
  -, makeWrapper }:
  +{ fetchurl
  +, stdenv
  +, pkgconfig
  +, gnome3
  +, gtk3
  +, atk
  +, gobject-introspection
  +, spidermonkey_60
  +, pango
  +, readline
  +, glib
  +, libxml2
  +, dbus
  +, gdk-pixbuf
  +, makeWrapper
  +}:
   
   stdenv.mkDerivation rec {
     pname = "gjs";
  
positive.code:       --prefix GI_TYPELIB_PATH : "${stdenv.lib.makeSearchPath "lib/girepository-1.0" [ gtk3 atk pango.out gdk-pixbuf ]}:$installedTests/libexec/gjs/installed-tests"
    '';
  
    meta = with stdenv.lib; {
      description = "JavaScript bindings for GNOME";
      maintainers = gnome3.maintainers;
      platforms = platforms.linux;
      license = licenses.lgpl2Plus;
    };
  }
  
negative.code:     sha256 = "1xf68rbagkflb9yi3visfw8cbxqlzd717y8jakgw0y6whzm1dpxl";
    };
  
    outputs = [ "out" "installedTests" ];
  
    nativeBuildInputs = [
      pkgconfig
      makeWrapper
    ];
  
    buildInputs = [
      libxml2
      gobject-introspection
      glib
      pango
      readline
      dbus
    ];
  
    propagatedBuildInputs = [
      spidermonkey_60
    ];
  
    configureFlags = [
      "--enable-installed-tests"
  