Grass 4.0 build on RS6000 problem

[Duc Nygen]

I built grass4.0 on an ibm rs6000 using gcc 2.3.1 without much of a problem
(main problem was K&R C variants), and tried to start X window driver and
go the following errors:

GRASS-GRID > d.mon
                    MONITOR MENU


Making sure that the graphics monitor is running

     1 - start a graphics monitor
     2 - stop a graphics monitor

Choosing a graphics monitor for your graphics

     3 - select a graphics device for output

RETURN - quit

> 1

Enter name of graphics monitor to start
Enter "list" for a list of known monitors
Enter "list -f" for a list with current status
Hit RETURN to return to menu
> x0
longjmp or siglongjmp function used outside of saved context
bsh: 13966 Abort: A memory image file is created as "core".
Please start graphics monitor <x0>.
Error - Graphics monitor <x0> not running!
Problem selecting x0. Will try once more
Please start graphics monitor <x0>.
Error - Graphics monitor <x0> not running!

hit RETURN ->

Help!
thanks
duc at comsearch.com