deimos libX11 undefined reference

[cal]

I'm using the deimos libX11 bindings, DMD 2.058 OpenSUSE x86_64.
In Xlibint.d, my linker can't resolve '_XData16' (it's proto is 
on line 624 of Xlibint).

Does anyone who knows X11 know what library I should be linking 
to for that function? Or an easy way to grep the symbols in a 
directory of libraries in linux (I mostly use windows...).

Cheers