P1003 System V compatible BSD-style job control

[Jim Robinson]

*
I recently looked at the IEEE proposal to the P1003 committee on UNIX 
standards re a System V compatible BSD-style job control mechanism (#P.047)
and it all seemed quite reasonable except for the fact that I could not
discern whether there existed a means of associating an arbitrary process
with the terminal. (BSD uses an ioctl). The one system call that I thought
might do this 'setpgrp2' quite clearly says that this "function does not
affect the process's terminal affiliation".  Assuming that the words
"association" and "affiliation" are interchangeable in this context, then 
it would appear that this call does not do as I had thought it might.
Am I missing something, or is this correct wrt 'setpgrp2'. If the latter 
is true, then what means is to be used to perform terminal association?

J.B. Robinson