Hello Roger,

On Jun 26, 2011, at 19:02 , Roger KeIrad wrote:

> I'm a new user of syncevolution, i tryed to install the syncevolution 1.1.1 
> version , when looking to the source code i find that libsynthesis uses GPLv2 
> and GPLv3 (in the copying file of the lib).

Not really, it's LGPL, not GPL (a quite significant difference). GPL would mean 
code using libsynthesis would need to be GPL as well. LGPL allows using the 
library in an application which is not GPL.

> Really i don't understand exacltly what's the license of libsynthesis ?

As the COPYING says, it is triple licensed. Which means you can choose one from 
these three licenses for *using* it. If you want to contribute however, you 
need to agree to make your code available under each of these three licenses, 
such that other users are free to choose as well.

> is it GPLv2 or GPLv3 ? if it's only a section of this library that use GPLv3 
> , what's this section and what this section do ?

The library itself is available under LGPL v2, LGPL v3 or EPL. 

Some sample and utility code showing how to use the library (src/sysync_SDK) is 
under the much less restrictive BSD license, such that it can be freely used to 
build applications interfacing with libsynthesis.

Best Regards,

Lukas

Lukas Zeller, plan44.ch
[email protected] - www.plan44.ch


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