Re: [Ccrtp-devel] ccRTP (and commoncpp) GPL linking exception ..

[David Sugar]

The changed library would either still be either under the GPL only, or
under the GPL with the linking exception, at your choice.  In either
case, you would have to distribute/make source available to your changes
to the library(ies) to propogate the changed libraries.  This is
relevant to the libraries only, however, and not the linked application,
unless you chose to redistribute the libraries as GPL only.  If the
changes to the libraries are small, I would be happy to review and
include them in the next release.

Thomas Raschbacher wrote:
> Thanks for the fast answer.
> So basically if I make any changes/fixes (e.g. neither commoncpp nor ccrtp 
> would compile as-is with visual studio 2008 so I had to change project files 
> and apply 1 or 2 small fixes) I'll have to make those available as normal, 
> but just using the library (I assume it doesn't matter if static or dynamic) 
> is fine without having the GPL apply to the rest of my code. Correct?
> 
> Regards,
> 
>> -----Original Message-----
>> From: David Sugar [mailto:address@hidden
>> Sent: Tuesday, July 01, 2008 17:48
>> To: Thomas Raschbacher
>> Cc: address@hidden
>> Subject: Re: [Ccrtp-devel] ccRTP (and commoncpp) GPL linking
>> exception ..
>>
>> I should add, however, that the ZRTP extensions (which is separately
>> distributed) are licensed using the GNU General Public License without
>> a linking exception.  If you are using the zrtp extensions, then you
>> will need to license your software under a GNU GPL compatible license.
>>
>> Thomas Raschbacher wrote:
>>> Hi.
>>>
>>> I've evaluated ccRTP for an application we are developing (I did have
>> to apply a few minor patches for VS 2008 but now it compiles and works)
>> and so far it seems to work quite well.
>>> I've been wondering about the linking exception .. I read both the
>> COPYING.addendum file and
>> http://www.gnu.org/software/ccrtp/doc/manual/html/GNU-ccRTP-Linking-
>> Exception.html .
>>> If I understand it right it means that I could link the library in a
>> closed source commercial program.
>>> Please correct me if I'm wrong .. I'm not really good with license
>> stuff...
>>> Regards,
>>>
>>> Mit freundlichen Grüßen
>>> Thomas Raschbacher
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