pppd src and QNX Momentic

I have problem. I dowland source code of pppd and compile under QNX6.1. It’s
OK. And now I have QNX Momentic. When I compile this that is OK too. But
when I run pppd so pppd abort and ppp0 interface not run. Please help me or
send me new source code. I can not use pppd on QNX Momentic because I do
adjustments in sourec code.