Experimental Physics and
Industrial Control System

"Johnson, Andrew N." <[email protected]> · Thu, 23 Oct 2014 07:58:45 +0000

Hi Lewis,

> On Oct 23, 2014, at 00:07, J. Lewis Muir <[email protected]> wrote:
> 
>> On 10/22/14 4:45 PM, Johnson, Andrew N. wrote:
>> I would be careful with making assumptions about using “plug-in”
>> programs, the GPLv3 definition for Corresponding Source "includes
>> interface definition files associated with source files for the work,
>> and the source code for shared libraries and dynamically linked
>> subprograms that the work is specifically designed to require,
>> such as by intimate data communication or control flow between
>> those subprograms and other parts of the work.” This means that
>> “intimate” inter-program communication could also require your
>> program to be released under the GPL in some cases.
> 
> See:
> 
>  http://www.gnu.org/licenses/gpl-faq.html#GPLAndPlugins
> 
> To me, that supports what I said.

Read the following FAQ points as well, there are subtle distinctions between whether your main application is GPL or your plugin is GPL, and I think the example you pointed to was for a non-GPL plugin to a GPL application.

- Andrew

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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System