[Xastir] X Printing Extension

[Tom Russo]

For a number of years (at least dating back to the first version on SourceForge)
xastir's configure.ac has probed for XpGetDocumentData in the Xp library.

As far as I can tell, Xastir does not use the Xp library --- there are no calls
anywhere to the X Printing Extension library, and xastir compiles and
links just fine without it.

I bring this up because a user edited my HowTo:Ubuntu 6.10 documentation 
to say that libxp-dev was required --- this, despite the fact that I had 
tested, double checked, and triple checked the instructions in that page
and confirmed that following every line of its recommendations (which did
not install libxp-dev) resulted in a working version of xastir.

So this afternoon I removed the probe for the Xp library from configure.ac.

If you have any trouble building xastir now that it doesn't link in libXp, 
please let me know.  If xastir *does* require this library, it would be because
some other library needs it indirectly --- but since all of my Ubuntu 6.10
builds work just fine without it, I'm pretty sure that this inclusion was just
a relic of an early version of the configure script, not an actual dependency.

-- 
Tom Russo    KM5VY   SAR502   DM64ux          http://www.swcp.com/~russo/
Tijeras, NM  QRPL#1592 K2#398  SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM
"And, isn't sanity really just a one-trick pony anyway? I mean all you get is
 one trick, rational thinking, but when you're good and crazy, oooh, oooh,
 oooh, the sky is the limit!"  --- The Tick