[nas] nas dependent on X11

[Paul Fox]

i know that historically nas and x11 were closely related -- at least,
that's how nas was envisioned.  but does that really make sense
anymore?  i know that some of the au-tools are X-based, but frankly,
i can't remember the last time i used one of them.  auedit isn't
exactly cutting edge anymore.  :-)

what exactly would break if we moved the contents of Xtutil.c to
a separate library that most nas-enabled apps wouldn't need?

i suppose this isn't all that big a deal, since clearly (well,
currently by definition :-) nas is used in environments that also
use X.  but i was surprised that i needed to tell the libao
makefiles about X (and will have to figure out how to write
configure and automake tests for it eventually) in order to get
my nas plugin to build.  seems like a needless dependency, and
i'd warrant that the Xtutil.c hooks are used by very few apps
anymore.

paul
=---------------------
 paul fox, pgf at foxharp.boston.ma.us (arlington, ma, where it's 44.4 degrees)