fastx11, because for some reason it reportedly doesn't work in 16bpp mode,
which most people use (I use 24bpp).
Sorry for being so late about this.
Submitted by: green
supports X11 library graphics. I will fix it later to allow the
use of OpenGL/Mesa well as the other libraries that Heretic
has been ported to work with in the Unix world.
PR: 17194
