Re: How to use (free!) sources of other projects without copyright/license information in file?

2011-05-14 Thread Bernhard R. Link
* Hendrik Weimer  [110514 08:41]:
> > Both of the packages claim to be GPL'ed as per COPYING, and I wonder whether
> > this is acceptable for Debian. Probably it is, as ax25-apps is in
> > main.
>
> While the GPL strongly recommends putting copyright notices in each
> source file, it does not require to do so. In the case of ax25-apps, the
> upstream tarball claims that the work is being licensed under
> GPL-2. Unless one has evidence that this claim might not be true, I see
> no reason to think otherwise.

s/evidence/hints/

(Might be the same in proper English, but for non-native speakers like
me evidence is stuff good enough for court, which is far to strong
here.).

And having stuff marked as being from other sources is a very clear
indication there might be at least some copyright line missing and
very likely also a license.

Bernhard R. Link


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Re: How to use (free!) sources of other projects without copyright/license information in file?

2011-05-13 Thread Hendrik Weimer
Michael Tautschnig  writes:

> Both of the packages claim to be GPL'ed as per COPYING, and I wonder whether
> this is acceptable for Debian. Probably it is, as ax25-apps is in
> main.

While the GPL strongly recommends putting copyright notices in each
source file, it does not require to do so. In the case of ax25-apps, the
upstream tarball claims that the work is being licensed under
GPL-2. Unless one has evidence that this claim might not be true, I see
no reason to think otherwise.

Hendrik


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Re: How to use (free!) sources of other projects without copyright/license information in file?

2011-05-13 Thread Paul Wise
I'd suggest contacting ax25-apps upstream to clarify the situation:

http://www.linux-ax25.org/wiki/Ax25-apps

Also, should ax_emergency_listen just be merged into ax25-apps? Then
there would be no need for code duplication.

-- 
bye,
pabs

http://wiki.debian.org/PaulWise


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Re: How to use (free!) sources of other projects without copyright/license information in file?

2011-05-13 Thread Paul Wise
On Sat, May 14, 2011 at 6:09 AM, Guido Trentalancia
 wrote:

> I'll just make an hypotesis. The origin is not very important as long as
> the original author doesn't care about claiming it. Being GNU GPL (this
> is clearly stated in COPYRIGHT), there is no warranty in any case. If
> there is no warranty, then as long as no-one is claiming the copyright,
> it shouldn't matter (for example, "orphan package").

Copyright is automatic, it doesn't matter if you claim it or not, your
works are still copyrighted.

-- 
bye,
pabs

http://wiki.debian.org/PaulWise


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Re: How to use (free!) sources of other projects without copyright/license information in file?

2011-05-13 Thread Guido Trentalancia
Hello again Michael !

First of all, thanks again very much for all your support and help.

On Fri, 2011-05-13 at 22:35 +0100, Michael Tautschnig wrote:
> Dear debian-legal,
> 
> While reviewing the ax_emergency_listen package [1] I found that several 
> source
> files lack both copyright and license information. The reason for this lack,
> however, is that they were taken verbatim from ax25-apps *where there is no 
> such
> information in source files*, as upstream explained to me (Guido, CC'ed) in
> private.
> 
> Both of the packages claim to be GPL'ed as per COPYING, and I wonder whether
> this is acceptable for Debian. Probably it is, as ax25-apps is in main.
> 
> But how would one, in this case, trace back the origin of those files?

I'll just make an hypotesis. The origin is not very important as long as
the original author doesn't care about claiming it. Being GNU GPL (this
is clearly stated in COPYRIGHT), there is no warranty in any case. If
there is no warranty, then as long as no-one is claiming the copyright,
it shouldn't matter (for example, "orphan package").

In this specific case, there is some (possibly incomplete) authorship
information in the original "listen" package. As long as I refer to the
original package, stating clearly its origin (for example it's web
location and name), it is always possible to trace back whatever
information the original author wants to provide (in the original source
package). If such information is missing or incomplete at the origin it
is a matter of the author of that package.

Just an hypothesis or "guess".

> Thanks a lot in advance,
> Michael

You are welcome !

> PS.: Please keep Guido and me CC'ed, neither of us is subscribed.
> 
> [1] http://lists.debian.org/debian-mentors/2011/05/msg00020.html

Kind regards,

Guido


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How to use (free!) sources of other projects without copyright/license information in file?

2011-05-13 Thread Michael Tautschnig
Dear debian-legal,

While reviewing the ax_emergency_listen package [1] I found that several source
files lack both copyright and license information. The reason for this lack,
however, is that they were taken verbatim from ax25-apps *where there is no such
information in source files*, as upstream explained to me (Guido, CC'ed) in
private.

Both of the packages claim to be GPL'ed as per COPYING, and I wonder whether
this is acceptable for Debian. Probably it is, as ax25-apps is in main.

But how would one, in this case, trace back the origin of those files?

Thanks a lot in advance,
Michael

PS.: Please keep Guido and me CC'ed, neither of us is subscribed.

[1] http://lists.debian.org/debian-mentors/2011/05/msg00020.html



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