This will make a number of things easier in the future, as well as (finally!) avoiding the Id-smashing problem which has plagued developers for so long. Boy, I'm glad we're not using sup anymore. This update would have been insane otherwise.
the so-called "System V IPC". Submitted by: jbeukema@HK.Super.Net (John Beukema) Obtained from: Th. Lockert <tholo@sigmasoft.com>, via NetBSD