[Haskell-cafe] Re: ANN: hakyll-0.1
ganesh at earth.li
Tue Dec 8 16:57:50 EST 2009
On Tue, 8 Dec 2009, Tom Tobin wrote:
> On Tue, Dec 8, 2009 at 3:30 PM, Ben Franksen <ben.franksen at online.de> wrote:
>> Ketil Malde wrote:
>>> Your contributions could still be licensed under a different license
>>> (e.g. BSD), as long as the licensing doesn't prevent somebody else to
>>> pick it up and relicense it under GPL.
>>> At least, that's how I understand things.
>> Right. So hakyll is absolutely fine with a BSD3 license, AFAICS.
> Seriously, no, this is *totally* wrong reading of the GPL, probably
> fostered by a misunderstanding of the term "GPL-compatible license".
> GPL-compatible means the compatibly-licensed work can be incorporated
> into the GPL'd work (the whole of which is GPL'd), *not the other way
> around*. If you are forming a derivative work based on the GPL'd
> work, and thus you have to release that derivative work under the GPL.
The combination of haykll and pandoc clearly must be GPL. I don't think it
automatically follows from that that hakyll taken alone must be GPL. One
might argue that the hakyll itself must be a derivative work as it builds
on pandoc, but equally there may well be at least some pieces of hakyll
that have independent uses; in addition someone might write a
API-compatible replacement for pandoc that was BSD3. I would therefore
argue for clearly marking the hakyll source as BSD3, so long as there is
some way to clearly signal that anything compiled from it will necessarily
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