Re: [Exist-development] LGPL 2.1 and GPL 2 and all that crap

[Adam R. <ad...@ex...>]

Thanks Alain,

The thing I was using under GPL was GNU Crypto, but I just checked
their licence in more details and it seems that we should be fine as
it says -

"GNU Crypto is licensed under the terms of the GNU General Public
License, with the "library exception" which permits its use as a
library in conjunction with non-Free software:

"As a special exception, the copyright holders of this library give
you permission to link this library with independent modules to
produce an executable, regardless of the license terms of these
independent modules, and to copy and distribute the resulting
executable under terms of your choice, provided that you also meet,
for each linked independent module, the terms and conditions of the
license of that module. An independent module is a module which is not
derived from or based on this library. If you modify this library, you
may extend this exception to your version of the library, but you are
not obligated to do so. If you do not wish to do so, delete this
exception statement from your version."
The effect of that license is similar to using the LGPL, except that
static linking is permitted. GPL with that exception is sometimes
called the Guile License, because the Guile implementation of Scheme
(for embedding) uses this license."

So as I am using it as a JAR, I dont think I need worry now...

On 5 February 2012 21:25, Alain Couthures <ala...@ag...> wrote:
> That's the official FAQ:
>
> http://www.gnu.org/licenses/old-licenses/gpl-2.0-faq.en.html#GPLInProprietarySystem
>
> Le 05/02/2012 22:12, Adam Retter a écrit :
>
>> Hi Alain,
>>
>> Thats interesting, can you tell me where you got that quote from
>> please? ...so that I can read some more!
>>
>> On 5 February 2012 21:11, Alain Couthures<ala...@ag...>
>>  wrote:
>>>
>>> Hello Adam,
>>>
>>> As far as I understand, including a GPL library in eXist-db would imply
>>> that
>>> eXist-db is becoming GPL itself!
>>>
>>> "A system incorporating a GPL-covered program is an extended version of
>>> that
>>> program. The GPL says that any extended version of the program must be
>>> released under the GPL if it is released at all."
>>>
>>> -Alain
>>>
>>> Le 05/02/2012 21:48, Adam Retter a écrit :
>>>
>>>> I really detest trying to understand open source licences. I have
>>>> placed something which is GPLv2 into eXist-db. eXist-db is LGPL 2.1.
>>>> It seems to me that from what I can Google and understand (not much),
>>>> that the licences are compatible.
>>>>
>>>> However, I have had some concerns raised that we should not use
>>>> anything which is GPLv2. As Linux itself is GPLv2 and many companies
>>>> use this, I am not sure I understand the issue.
>>>>
>>>> If anyone is concerned that I should not include GPLv2 libraries,
>>>> please tell me, but more importantly please tell me why its important.
>>>>
>>>> Thanks Adam.
>>>>
>>
>>
>



-- 
Adam Retter

eXist Developer
{ United Kingdom }
ad...@ex...
irc://irc.freenode.net/existdb