Re: GPL

On Mon, 2002-11-11 at 02:30, Arkady V.Belousov wrote:
> BO> It's linking. That's how Cygnus (bought by Red Hat) with Cygwin and
> BO> TrollTech with QT make parts of their money; they release a DLL under the
> BO> GPL so that anyone who wants to sell commercial applications that use the
> BO> DLL needs to buy a proprietary license for the DLL.
>
>      I hear there are closed variants of Wine and QT? This forces question:
> is authors of GPLed code allowed to use its own code in closed programs?

Yes, the authors care release code under a proprietary license, this is
what happened with QT.

Wine is slightly different, it was originally licensed under a BSD style
license and several companies took it made closed license version
(Transgamming, Lindows, others?).  The original group of authors did not
like that and so changed the license to LGPL to force anybody in the
future to re-release the wine code.  The original wine authors could
release a closed license version if they wanted to.

Paul