On 02/13/12 05:19 PM, Keshav Kini wrote:
If I understand correctly, William's point is that simply placing a
copy of the GPL, with a version number attached or otherwise, with a
"or any later version" included or otherwise, in the program's source
code is not equivalent to a declaration of licensing under the GPL of
a particular version, even if said copy of the GPL specifies a
particular version of the GPL which said copy constitutes. Further,
Michael Abshoff's comment at
http://trac.sagemath.org/sage_trac/ticket/3043 is that the FSF's
interpretation of what license the software is under if it simply
includes some copy of the GPL in its source code but does not declare
itself to be under that license is that the software is under that GPL
copy's declared version and any later version, regardless of whether
the text "or any later version" appears in said copy of the GPL.
(Of course, I don't vouch for any of these statements - just trying to
clarify the discussion.)
-Keshav
I can understand and agree with Alex's comments
=============================
Both the version of gfan that's currently in Sage (0.3) and the latest version
(0.4plus) have a file COPYING which is just the text of GPL version 2. I would
say that's pretty clear, and it should be in the file SPKG.txt.
=============================
I would interpret Alex as saying that's version 2, and only version 2.
I've no idea how Michael Abshoff can say the FSF consider that code is licensed
under version X+, even if you include a license with version X, and no comment
about later versions. That makes no sense to me, and I've no idea where Micheal
got that from. He has not provided any evidence to back up that dubious claim.
I think we could argue this all night. I for one think Sage is on dodgy ground
license-wise. Jeroen Demeyer is even more adamant there are legal issues.
William is happy.
Dave
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