[etherlab-users] EtherCAT master license

[Florian Pose]

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Hello,

Am 14.02.2012 18:07, schrieb Shahbaz Yousefi:
> The EtherCAT master is released under GNU GPLv2, copyrighted from 
> 2006-2008 to Florian Pose. Since GNU GPLv3 is not compatible with
> GNU GPLv2
> <http://www.gnu.org/licenses/gpl-faq.html#AllCompatibility>, the 
> functions provided by the EtherCAT master (such as 
> ecrt_master_send/receive) cannot be used in a program released
> under GNU GPLv3.

The copyright notes are not outdated. Like stated in the
documentation, the master itself is licensed under GPLv2, while the
userspace library is licensed under LGPLv2. So any application (also
proprietary ones) can link against the library.

> Also, I noticed the GNU LGPLv3 is attached to the master 
> (COPYING.LESSER), while inside the source files as well as the
> README file, it is indicated that the program is released under GNU
> GPLv2. Again, are the license notes on the source files outdated?

No, the COPYING.LESSER is indeed LGPLv3, but this is a mistake (it was
automally added by autotools). Thanks for the hint, I'll correct that.
The valid licenses are in the file headers.

- -- 
Best regards,
Florian
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