[ 1213876 ] Xlib Types Not Instances of Anything

> The types defined by newtype in Graphics.X11.Xlib.Types
> are not instances of any type classes. Ptr, on the
> other hand, which these types are synonyms for, is an
> instance of Eq, Ord, Show, Typeable, Data, Storable,
> and several other classes not relevant to the usage of
> pointers in Graphics.X11.Xlib.

Which instances do you want added?