From bug-octave-request  Mon Jun 14 18:05:31 1993
Subject: Bug in octave-0.72 (on i486-sysv4)
From: glenn at physics dot su dot OZ dot AU (Glenn Geers)
To: bug-octave
Date: Tue, 15 Jun 93 9:04:47 EST

Hi,
	I've found a problem with octave on i486-sysv4 compiled with gcc-2.4.3
and libg++-2.3.1. Here is a minimal example... 

############################################
Script started on Mon Jun 14 18:45:38 1993
root:/tmp# octave
Octave, version 0.72.  Copyright (C) 1992, 1993, John W. Eaton.
This is free software with ABSOLUTELY NO WARRANTY.
For details, type `warranty'.

octave:1> quit
error: caught SIGSEGV -- stopping myself...
DLList Error: null Pix
error: caught SIGIOT -- stopping myself...
DLList Error: null Pix
Memory fault(coredump)
root:/tmp#

script done on Mon Jun 14 18:45:48 1993
#############################################

I've tracked this down a little (debugging symbols for g++ are not available 
on SVR4) and the problem is related to close_files() in file-io.cc.

A quick work around is to comment out the call to close_files() in 
clean_up_and_exit() in octave.cc.

The typewriter() function also causes the system to die on a call to
panic_impossible()---I neglected to note the details :-( I'll check it
tonight.

The problem also shows up with libg++-2.3.90 (i.e. libg++-2.4 alpha).

Cheers,
	Glenn