Re: [OctDev] Use of MATLAB Central (was Re: GPL violations)

[c. <car...@gm...>]

To add one point of data to this discussion,
I just noticed an interesting case that is related to
the new TMW ToS:

The NURBS toolbox was originally developed by M. Spink and distributed  
under a GPL v2 license:
http://www.aria.uklinux.net/index.php3

I made an Octave package from the NURBS toolbox some time ago and  
uploaded it on Octave-Forge
maintainig the copyright into the original files and the original  
license,
the license is clearly stated as being GPL and the copiright holder as  
being M. Spink,
you can see one example here:
http://octave.sourceforge.net/nurbs/function/vecrotx.html

I tried to contact the M.Spink at the time I started the Octave-Forge  
fork of the NURBS toolbox,
but his email address seems to be no longer active:
http://old.nabble.com/nurbs-package-ts20368543.html#a20368543

The NURBS toolbox was hosted on the Matlab Central Web Site here:
http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=312&objectType=file

but the link is now broken as the original package was removed  
probably due to the change in ToS.

I just noticed that someone re-uploaded the package on matlab central  
earlier this year:
http://www.mathworks.com/matlabcentral/fileexchange/26390-nurbs-toolbox-by-d-m-spink

this latter package seems to be identical to the original version,  
EXCEPT that
1) The copiright notice has been removed from the file headers
2) The GPL license included in the original version has been replaced  
by a file named "license.txt" containing a BSD license

I beleive this was done to comply with the new TMW ToS, but, as the  
uploader of the package is NOT the copyright holder,
This is clearly in violation of the terms of GPL.

Does any of you have suggestions about how to react to this violation?
Thanks,
c.