anchor.diff:      pkgconfig
       python3
       ruby
  +    glib
  +    wayland
     ];
   
     buildInputs = [
  
positive.code:     ./libglvnd-headers.patch
    ];
  
    nativeBuildInputs = [
      bison
      cmake
  
negative.code: , xdg-dbus-proxy
  , substituteAll
  , gnome3
  , glib
  }:
  
  assert enableGeoLocation -> geoclue2 != null;
  