anchor.diff:  , ninja
   , gnome
   , gtk3
  +, gtk4
   , glib
   , gettext
   , libxml2
  
positive.code:     isocodes
      wayland
      gtk3
      glib
      libseccomp
      systemd
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "gnome-desktop";
    version = "42.alpha.1";
  
    outputs = [ "out" "dev" "devdoc" ];
  
    src = fetchurl {
      url = "mirror://gnome/sources/gnome-desktop/${lib.versions.major version}/${pname}-${version}.tar.xz";
      sha256 = "sha256-lxUTBDVAeqgptNWdwDb/XKOSTytO4X7FMBf2ar2gX+w=";
    };
  
    patches = [
  