Date: Thu, 5 Aug 1993 13:39 EST
From: "Wonkoo Kim, EE, U. of Pittsburgh" <WKIM AT vms DOT cis DOT pitt DOT edu>
Subject: a program locked the system
To: akrause AT saturn DOT SDSU DOT EDU, djgpp AT sun DOT soe DOT clarkson DOT EDU

>Date: Wed, 4 Aug 93 23:06:09 PDT
>From: akrause AT saturn DOT SDSU DOT EDU (Alan Krause)
>
>  Ack!  My program is locking up my computer so that only a hardware reset will
>get me back to the command line.  The source follows.  To compile, type:
>    gcc prog.c -o prog -lgrx -lm
>
>  You need not use the grx library, it will do the same thing with the regular
>gr library as well.
>  The commands are:   (i) - move up
>                      (k) - "  " down
>		      (j) - turn left
>		      (l) - turn right
>
>  To crash the program, try rotating in one direction by holding down the
>(j) or (l) keys.  That oughtta do the trick.
>.....

On my system, there was no problem with your program.(for both cases of -lgr 
and -lgrx)

I am using the standard distribution of djgpp 1.10 and go32 1.10a from 
pub/csdpmit1.zip and *.grn drivers and libgrx.a from pub/grxdrvb1.zip.

Please check your versions your are using.  If versions are the same as mine, 
I guess the problem might be in somewhere else other than djgpp. (possibly, 
memory conflict with memory manager and graphics board??....)

Regards,

Wonkoo.