[cronopios]

Ancient Unix were released by Caldera under a 4-clause BSD license.

See http://en.wikipedia.org/wiki/Ancient_UNIX

The source code for SysV is floating around the Internet, but adding it to this repo would amount to copyright infringement.

[gpvos]

SysV is apparently here: https://archive.org/details/ATTUNIXSystemVRelease4Version2

[cronopios]

Yep, but please notice that AFAIK Novell holds the copyrights to this code, and (unlike the Ancient Unixen) it has not been released under a BSD-like license.