libX11 docs compilation failure

[James Cloos]

Now that the docs are in the modules they document, building from git
has become fragile.

Today, libX11 failed to build because something called when building the
docs wanted a usable display.  For no good reason.  

Part of the problem is the use of xml for the docs, and the lack of any
reasonable stack to typeset xml.  Jade would produce reasonable output
were it usable.  Fop is also unreliable and produces /horrid/ ouput.

Plus, make install re-gens all of the docs.  The dependencies are wrong.

It should be possible to build everything w/o a display.

-JimC
-- 
James Cloos <cloos at jhcloos.com>         OpenPGP: 1024D/ED7DAEA6