Is this bunk.

Roland Smith rsmith at
Mon Aug 23 16:25:03 UTC 2010

On Mon, Aug 23, 2010 at 01:25:34AM +0100, Garry wrote:
> This is a conversation held on a UK group page, can you confirm or deny this
> as twaddle.
> Mac OS X is basically BSD that's been appleised (serious vendor lock-in),

See and
It's a Mach-based kernel, with parts of FreeBSD's and NetBSD's userland.

> they do give a little back to BSDs, but have made sure that BSDs can't get
> much off of them, but they can get a lot out of BSD.

Apple is a big user of and contributor to the LLVM project []
to create a modular and reusable compiler and toolchain with a BSD-like
license. See e.g.
> Also, Windows uses  (or used to use) a BSD stack for networking for
> instance.

No. See

> Having seen how BDS license software has been used, to create highly tied
> in, almost crippled proprietary software, I do not feel that I can support
> software developed under such licenses.

FreeBSD still exists. And so do NetBSD and OpenBSD. 

If someone wants to use BSD-licensed code, great. But if that company then
decides not to contribute back they are not so smart. If they change the code
but to not contribute back changes, the original developers don't know about
it, nor can they merge it with their own developments. So over time the
code-bases will diverge, and the company in question has to do more and more
maintenance on that code.

The crux of the matter is that if you don't contribute back you'll lose the
advantage of open-source development and its community.

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