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From: Borsenkow Andrej <Andrej.Borsenkow@mow.siemens.ru>
To: Sven Wischnowsky <wischnow@informatik.hu-berlin.de>,
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Cc: Timothy Miller <tsm@cs.brown.edu>
Subject: RE: fatal flaw zsh 4.0.1 on irix 6.3 & 6.5: suspend "ls -l|less" then resume hangs
Date: Tue, 31 Jul 2001 12:30:06 +0400
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> 
> Aha.  Hm, well, is there any Unix where killpg(p, s) does something
> different than kill(-p, s)?

It should be the same by definition:

     If pgrp is greater than 1, killpg(pgrp, sig) is equivalent to
     kill(-pgrp, sig). If pgrp is less than or equal to 1, the behavior of
     killpg() is undefined.

-andrej