Sunview question: Can we call popen?

[Venkat]

The Sunview programmers guide mentions that we should never use the system
call 'system' since it calls 'signal' and 'wait' and these system calls are
prohibited in sunview since the notifier takes care of them. By the same 
token, are we not allowed to call 'popen' and 'pclose' since these too
exec the sh and execute a wait. Any info is appreciated.

Venkat                                  Email: rigel!iis!venkat at sun.com
International Imaging Systems