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Date:      Fri, 23 Jan 2009 01:19:13 +0100
From:      Ivan Voras <ivoras@freebsd.org>
To:        Robert Watson <rwatson@freebsd.org>
Cc:        svn-src-head@freebsd.org, jeff@freebsd.org, src-committers@freebsd.org, svn-src-all@freebsd.org, "M. Warner Losh" <imp@bsdimp.com>
Subject:   Re: svn commit: r187580 - head/tools/sched
Message-ID:  <9bbcef730901221619x390f3daau8104cf8912c4a237@mail.gmail.com>
In-Reply-To: <alpine.BSF.2.00.0901222230430.66510@fledge.watson.org>
References:  <200901220621.n0M6LU5v002745@svn.freebsd.org> <20090122.104114.1927899760.imp@bsdimp.com> <alpine.BSF.2.00.0901221846230.66510@fledge.watson.org> <9bbcef730901221255u5767d16bo230da23542a171d7@mail.gmail.com> <alpine.BSF.2.00.0901222230430.66510@fledge.watson.org>

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2009/1/22 Robert Watson <rwatson@freebsd.org>:
> On Thu, 22 Jan 2009, Ivan Voras wrote:
>
>> 2009/1/22 Robert Watson <rwatson@freebsd.org>:
>>
>>> FWIW, the one case where I don't really do that is when I worked on som=
e
>>> code on my own and hence hold the copyright for it, then did some work =
under
>>> a contract for a customer on it such that they own the copyright on
>>> enhancements, and then I do some further work on my own.  In that case,=
 I'll
>>> leave a discontinuity to reflect the fact that the copyright on changes=
 made
>>> in the gap were assigned elsewhere.  Not clear this is the right thing =
to
>>> do, but I'm fairly sure at least some of my customers are more comforta=
ble
>>> with that as it leaves no confusion in the source as to which bits they
>>> sponsored/own.
>>
>> Of course this is purely cosmetic as "one year" is a terrible granularit=
y
>> for commits to a moving target :)
>>
>> (i.e. legally it's worthless information)
>
> Sorry, that simply isn't the case, as copyright expiration doesn't track =
the
> exact moment at which something was created.  Copyright law varies by
> country, but US copyright law is of particular importance to the FreeBSD
> Project, so I direct you to the US Copyright Office's rather helpful
> circular 92, which provides a useful summary:
>
>  =C2=A7 305. Duration of copyright: Terminal date
>
>  All terms of copyright provided by sections 302 through 304 run to the e=
nd
>  of the calendar year in which they would otherwise expire.
>
> So the year of creation really is the date that matters. And as nebulous =
as
> the far-off expiration of copyright dates may seem to you now, remember
> that: (a) we work on software that includes copyrights almost 30 years ol=
d,
> and (b) copyright law has an annoying propensity to change out from under
> you.

Thanks!

I'm not a lawyer (very obviously - no talent for it all :) ) and was
probably wrongly interpreting the Geneva copyright convention.

Can someone write a "practical guide to FreeBSD copyright matters for
developers" somewhere - wiki perhaps? (it could also include
GPL-related guidelines - GPLv3 even if there's consensus about it).



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