What should I do about getpgrp?

[rdm@tad.micro.umn.edu]

I'm working on a package that makes extensive use of getpgrp(pid), but
the getpgrp() that comes in libc5 doesn't take an argument (which is
not fun if you're managing a number of process groups from a number
of distinct sessions).

Unfortunately, I can't get libc5's source right now because ftp.debian.org
is unavailable, and debian.crosslink.net doesn't mirror the source.

Harumph... I don't know the right way here, and I'm impatient.  I suppose
the right thing to do is file a bug report against libc5, but I was hoping
to go further than that.  [This is a case where there are so many standards
I doubt this is really a "bug".]

Anyone have any ideas?

-- 
Raul