memory fault (core dumped)

Hi all,
I’ve been trying to run wxWindows(wxGTK) demos on QNX RTP. The make is
fine…no complains there. But, when I try to run the demo application, I
get:
libXext.so.6.3 missing
…and… libX11.so.6.1 missing
When I provide the right path (/usr/X11R6/lib), I get this:
memory fault (core dumped)
Just like that. No other diagnostic messages. And the application which is
supposed to pop up in an XPhoton session, never does.
Any ideas???
Thanks in advance.

Sanket Khidkikar
Software Engineering
(519) 653 4483 x7121
ATS Advanced Systems
730 Fountain Street
Bldg 3
Cambridge ON N3H 4R7