[Psc] license faq

Eric Lemoine eric.lemoine at camptocamp.com
Mon Apr 27 21:11:54 CEST 2009


On Friday, April 24, 2009, Eric Lemoine <eric.lemoine at camptocamp.com> wrote:
> On Friday, April 24, 2009, Tim Schaub <tschaub at opengeo.org> wrote:
>> Hey-
>>
>> Here's what my understanding is based on:
>>
>>  From http://extjs.com/products/floss-exception.php, Terms and
>> Conditions, 2.b:
>>
>> """
>> all identifiable sections of the Derivative Work which are not derived
>> from the Library, and which can reasonably be considered independent and
>> separate works in themselves
>> """
>>
>> I take "Derivative Work" to mean the application in this context.
>
> Agreed.
>
>>
>> All "identifiable sections ... not derived from the [Ext] Library" are
>> all the scripts that you distribute with your application.  I'm thinking
>> literally about every script included that is not what you download and
>> redistribute from extjs.com.  These can be considered separate works in
>> themselves.
>
> I understand "all sections not derived from the library" as the
> portions of the app that don't use rely on) Ext. Only those portions
> can be licensed under any of the license listed in the exception page.
> The portions that use Ext must be GPLv3.
>
>>
>> Continuing with 2.b.i:
>>
>> """
>> are distributed subject to one of the FLOSS licenses listed below
>> """
>>
>> All that means to me that if you do not wish to have a closed source
>> application, you can distribute any original work under the licenses
>> listed on that page (assuming you meet other terms).
>>
>> It also means to me that you can distribute things like GeoExt with your
>> application because it is BSD.
>>
>> Where do you get that the application exception
>> (http://extjs.com/products/floss-exception.php) only talks about
>> additional libraries?
>
> The paragraph just before 2.a. It says that distributing your app is
> permitted if it is formed entirely of Ext and other libs that are
> licensed under the listed licenses.
>
>   The only use of "Library" I see on that page
>> refers to Ext JS or Ext GWT.  The rest of the page is about licenses for
>> your application.
>
> To sum up what I understand from the exception: with the exception you
> can distribute your app if it uses only Ext and libs licensed under
> one of the listed licenses, and you can also use any of the listed
> license for your app code that doesn't use Ext (I.e. the standalone
> code or the code that's based on the other libs).
>
> What do you think?

Am I the only to understand this from the floss exception page? Should
I go read the exception page again (and take extra english lessons)
:-) ?



-- 
Eric Lemoine

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