DragonFlyBSD 1.0A review
ValourX writes "NewsForge has a review of DragonFlyBSD 1.0A. If you recall, this was forked from FreeBSD 4.8 a little more than a year ago, and has since achieved several of its goals. According to the review it's not quite ready for prime time yet, but it looks like DragonFly is shaping up to be the ultimate BSD."
Slightly longer answer: yes, if it is 2- or 3-clause BSD; 4-clause BSD code must have exemption from all copyright-owners-GPL-licensors to be used.
The opposite is not true - period. If all copyright owners relicense their software under BSD license, then it can be used in BSD'd code.
It's better to be the foot on the boot than the face on the pavement. ~~ tkx Kadin2048
The source of its 'ultimateness' is explained on their homepage:
See here.