🚀 go-pugleaf

The last several versions (at least since pl69) of gnuchess have
exhibited the following behavior under Linux:

	1.  Running under xboard -- "Program gnuchess exited
unexpectedly". (When debugging is enabled the following message is also
displayed.)

	2.  Running gnuchess interactively -- "Received unknown signal"
and gnuchess dies (apparently a kernel message).

Software details:
	Linux kernel 1.1.49 (and earlier)
	GCC 2.5.8
	Libc ??? (the last publically released one, about 6 mo. old)

	Gnuchess 4.0 pl71
	Xboard 3 pl1

Happens with or without the hashfile.

*It seems to happen most often when the position's evaluation is about
to become negative.* (ie when it realizes the opponent has the
advantage)

Also, gnuchess's time management is horrendous under linux.  It will
often run out of time in less than 30 moves in a 40 moves/10 min. time
control (no load on the machine, no swapping).

Grepping the source code reveals no signals that are undefined (as far
as I could tell, anyway). 

I would greatly appreciate help in debugging this.  In particular, what
DEBUGing options should I set in the Makefile to increase my chances of
figuring out what's going on.  

Thanks,

Tony Acero
-- 
Anibal Antonio Acero (Tony) (LLama) | Stone age or space age, man will be ask-
      a-acero@uchicago.edu          | ing the same question as his grandparents
___W(312)702-8214 H(312)752-5464____| before him and as his grandchildren after
him: "What star is that?" -- H.A. Rey, _The Stars, A New Way to See Them_