Bug#572982: EPL + LGPL compatiblity?

[Charles Plessy]

Le Tue, Mar 09, 2010 at 02:03:31AM -0500, Pablo Duboue a écrit :
> 
> We seek some advice regarding #572982 [1] (azureus, a well-known torrent 
> client, combines source licensed under incompatible  licenses).
> 
> From Niels quoted sources, there is no doubt about the incompatibility of GPL 
> and EPL. But LGPL and EPL might be a different matter and Google has proved 
> quite unfriendly on this regard.
> 
> Any advice on the matter will be highly appreciated.

Dear Pablo,

It looks like Aelitis/Vuze is the copyright owner of most of the GPL'ed code,
so the quickest way to solve the problem may be to ask them to add a license
exception to allow combining their code with the co-distributed EPL and
CPL-licensed sources. I hope others will correct me if I am wrong, but it seems
that the CPL does not forbid the program to be linked with works under other
licenses, so exception is only needed on the GPL side.

According to debian/copyright, this leaves two files to either replace or get
relicensed by their authors:

Files: com/aelitis/azureus/core/peermanager/utils/BTPeerIDByteDecoder.java
Copyright: 2003-2006, Aelitis
           2002-2004, Alon Rohter
License: GPL-2+

Files: org/gudy/azureus2/core3/util/BrokenMd5Hasher.java
Copyright: 2005, jMuleGroup
License: GPL-2

Have a nice day,

-- 
Charles Plessy
Tsurumi, Kanagawa, Japan