[Buildroot] [PATCH] libbsd: bump to version 0.9.1

[Yann E. MORIN <yann.morin.1998@free.fr>]

Thomas, Baruch, All,

On 2018-06-06 07:58 +0200, Thomas Petazzoni spake thusly:
> On Wed, 6 Jun 2018 07:01:31 +0300, Baruch Siach wrote:
[--SNIP--]
> > The actual effective line is 
> > rather shorter than what we have following this patch:
> > LICENSE = "BSD-4-Clause & ISC & PD"
> 
> I also think it is good enough. But I wanted to point out that the
> licensing is in fact a bit more complicated. I personally don't see the
> need of having a more detailed LIBBSD_LICENSE description, but I wanted
> to point this out so that others can comment on this (Arnout, Yann,
> Peter).

From https://libbsd.freedesktop.org/wiki/ :

   "Most of the licenses are either ISC, MIT, Beerware, BSD-2-clause,
   BSD-3-clause, and BSD-4-clause [...]"

So, we should probably at least list just those:

    LIBBSD_LICENSE = ISC, MIT, Beerware, BSD-2-clause, BSD-3-clause, BSD-4-clause

My $0.02...

Regards,
Yann E. MORIN.

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