Hi Michael,
On 15 Mai, 09:52, mabshoff <[email protected]> wrote:
> I am not sure I understand the question, but there is no need to
> provide a diff or anything like that. It is sufficient just to put the
> modified files into the spkg.
Now I am puzzled.
The MeatAxe sources have a COPYING file that states:
----------------------
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
...
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
...
-----------------------
So, according to 2.a), I *must* have a diff file or something like
that. Or not?
But now I wonder: You said that in GPL usually it is nice but not
required to have a diff when you change the source files. But this
license says something else. Does it mean that the licence under which
MeatAxe is published is not fully GPL compatible?
Or does section 2.a) just mean that no diff is required, but in any
modified file I have to indicate in the copyright notices that I
changed something? And am I copyright holder for these changes?
Probably yes, but of course *only* for the changed bits.
So, how should the copyright statement look when I took some code
(with its own copyright statement) and changed a couple of functions?
Sorry, but I was terrified by the recent long thread about GPL
licensing.
Cheers,
Simon
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at http://groups.google.com/group/sage-devel
URLs: http://www.sagemath.org
-~----------~----~----~----~------~----~------~--~---
