anchor.diff:      gobject-introspection
       cairo
       readline
  -    spidermonkey_60
  +    spidermonkey_68
       dbus # for dbus-run-session
     ];
   
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "gjs";
    version = "1.58.5";
  
    src = fetchurl {
      url = "mirror://gnome/sources/gjs/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
      sha256 = "0fm1szmhdawvgbf9fh6vvkv1fdvbn888fciyi2wkhx48kz09jvg7";
    };
  
    outputs = [ "out" "dev" "installedTests" ];
  
    nativeBuildInputs = [
      pkgconfig
      makeWrapper
      libxml2 # for xml-stripblanks
  
negative.code:     glib
    ];
  
    mesonFlags = [
      "-Dprofiler=disabled"
    ];
  
    postPatch = ''
  