anchor.diff:  , gtk4
   , glib
   , gtksourceview5
  -, wrapGAppsHook
  +, wrapGAppsHook4
   , gobject-introspection
   , gnome
   , mpfr
  
positive.code:     vala
      gettext
      itstool
      wrapGAppsHook
      gobject-introspection # for finding vapi files
    ];
  
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "gnome-calculator";
    version = "43.alpha";
  
    src = fetchurl {
      url = "mirror://gnome/sources/gnome-calculator/${lib.versions.major version}/${pname}-${version}.tar.xz";
      sha256 = "SUAYyg8lJQ55pbI1rUx+Pq88RzgV5qGi1tSqJW1F6LE=";
    };
  
    nativeBuildInputs = [
  