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.
Obtained from: NetBSD
ones that require this: the others call the yplib functions in libc.
code was originally written by Th. de Raadt, although this particular organization is mine.)
