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Re: haskell 'polyparse' package

To be honest, I have never studied the later version 3 of the LGPL, nor how it differs from version 2.1, so I cannot say that I permit anyone to change the licence of polyparse from LGPL 2.1 to LGPL 3, because I do not know what that would entail.


On 23 May 2016, at 20:15, Dmitry Bogatov <KAction@gnu.org> wrote:

>> The polyparse darcs repo includes the text of the licence in the LICENCE-LGP=
>> L file.  I apologise for the oversight which means the licence text is not i=
>> ncluded in the cabal package.  It is LGPL version 2.1.  I am not an expert o=
>> n whether LGPL 2.1 permits a later LGPL licence to be applied instead, but i=
>> t does appear to permit conversion to GPL 2 or later.  I presume this means t=
>> he later versions of the LGPL are not automatically allowed.
> Yes, they are not automatically forward-safe, unfortunately. But it is
> good thing to add 'or any later version (at your option)'
> clause.
> There is essay about compatibility, it may be of use. One day I saw
> table of license compatibilies, but can't find it now.
> https://www.gnu.org/licenses/license-compatibility.html
> Just to be sure (my english is not native), is it true, that polyparse is
> licensed under terms of Lesser GNU General Public License, version 2.1 or
> later (at my option)?
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