[TYPO3-50-general] ExtJs License

[ries van Twisk]

On Oct 13, 2008, at 1:28 PM, Peter Bartels wrote:

> Hi Ries,
>
> Isn't true that you can distribute an application which USES the GPL'd
> software? Like you can include the source (i.e. extjs) but your  
> commercial
> source  does not adjusts the GPL source.

For example if you make a software that uses a GPL framework (like  
FLOW3).
Then your software MUST be of a compatible license, GPL is your own  
option I think.
So when you sell this software to your customer, you have to give the  
source up-on request of your customer.

Did I understand you well in the above case???

This is one of the objections some people give of using a GPL license  
for frameworks because
it doesn't allow a company to make/modify/sell software without giving  
the source.


Ries

It's one of the reasons why some companies use PostgreSQL over MySQL.
PostgreSQL is BSD so it can by modified and sold without giving the  
client the source.
Some large companies do and make huge business out of it. Often you  
will see exactly these
companies provide great patches and feedback back to a BSD licensed  
software project.


>
>
> Regards, Peter
>
> 2008/10/13 ries van Twisk <typo3 at rvt.dds.nl>
>
>>
>> On Oct 13, 2008, at 12:17 PM, Sebastian Wojtowicz wrote:
>>
>>> Sorry for continued asking, I really hope my upcoming "Open Source
>>> Software Engineering"-seminar will shed some light on my
>>> mambojumbo-understanding of all this licensing stuff.
>>>
>>> ries van Twisk schrieb:
>>>> On Oct 13, 2008, at 9:51 AM, Xavier Perseguers wrote:
>>>>
>>>>
>>>>> Hi,
>>>>>
>>>>>
>>>>>> Hey, I just read that for commercial use of ExtJs you have to pay
>>>>>> 289 $.
>>>>>>
>>>>>> Well, I know that Flow3 is OpenSource
>>>>>> As will be Typo3v5
>>>>>>
>>>>>> But what if I use the Flow3 Framework to develop a commercial  
>>>>>> page,
>>>>>> which then uses the ExtJS package of Flow3.
>>>>>> Do I have to pay 289 $ to the ExtJs guys than ?
>>>>>>
>>>>> I would say yes!
>>>>>
>>>>
>>>> As long as you give the source with your project then you fall in  
>>>> the
>>>> GPL category.
>>>>
>>>> So yes, you can develop a commercial page and sell it to your
>>>> customers. But if they ask
>>>> for the source, you have to give it to them...
>>>>
>>> Well this I kind of already knew. But what if I make a page with  
>>> Flow3
>>> in its bones that's supposed to make profit for me ? (just by  
>>> being a
>>> usefull application, not a homepage that I sell)
>>> F.e. a shop or a job-agency.
>>> This is an commercial way of using flow3, right? And by that also a
>>> commercial use of ExtJs (cause I think I'd like to use that), right?
>>> Does this mean I have to offer my customers / my clients the source
>>
>>
>> You cannot mix FLOW3's GPL license with a commercial license of  
>> extJS,
>> so the license of extJS used with FLOW3 will always be a GPL license.
>>
>> It still does mean you can create a commercial application and sell  
>> it
>> to your customers!, But only as GPL not as any other license.
>> Your client can do whatever he feels with your commercial  
>> application,
>> sell it to other customers, publish it on a website (modified or not)
>> but your client
>> HAS to give the source aswell to all people he sells it to.
>>
>> For you there is no other option then to give the source up-on  
>> request
>> to your customers because FLOW3 is GPL to start off with.
>>
>> Ries
>>
>> PS 1: I am not a lawyer or anything...
>> PS 2: a BSD license would have been better under the above situation,
>> but FLOW3 wanted to be compatible with TYPO3's license model so
>> extensions could be re-used. (correct me if I am wrong here please).
>>
>>>
>>> code, too ?
>>>> Ries
>>>>
>>>>
>>>>> --
>>>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>                       regards, Ries van Twisk
>>
>>
>>
>> -------------------------------------------------------------------------------------------------
>> Ries van Twisk
>> tags: Freelance TYPO3 Glassfish JasperReports JasperETL Flex Blaze-DS
>> WebORB PostgreSQL DB-Architect
>> email: ries at vantwisk.nl
>> web:   http://www.rvantwisk.nl/
>> skype: callto://r.vantwisk
>>
>>
>>
>>
>>
>>
>>
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			regards, Ries van Twisk


-------------------------------------------------------------------------------------------------
Ries van Twisk
tags: Freelance TYPO3 Glassfish JasperReports JasperETL Flex Blaze-DS  
WebORB PostgreSQL DB-Architect
email: ries at vantwisk.nl
web:   http://www.rvantwisk.nl/
skype: callto://r.vantwisk