System()

I’m trying to use the system() function in QNX RTP. When I call it
(i.e. system(“ls”) or system (“cp myfile myfile.bak”)), it appears that
system() is Send-blocked, trying to send (I’m not sure what it’s trying
to send) back to the process which called system(). This call worked
fine in QNX 4.23 but now seems not to work.

Is there a way to set up how I register my processes (i.e. via flags to
name_attach or something) that will prevent system() from getting
Send-blocked? Thanks.

Neville