[LAU] licensing fun, was Re: Yamaha Disklavier Pro grand piano

[drew Roberts]

On Thursday 18 September 2008 12:26:01 Randy Kramer wrote:
> On Thursday 18 September 2008 11:27 am, drew Roberts wrote:
> > So, are there any Free programs built around QT that are not GPL?
>
> I can't answer that definatively.  I know KDE is (being?) ported to
> Windows, but I guess they manage to do that as free software (i.e.,
> under the GPL license of Qt).  It seems to me I've heard of some
> commercial programs using (or planning to use) Qt, but I can't recite
> any names.
>
> > To do this
> > legally, one would have to purchase a commercial license right? And
>
> then all
>
> > contributors would also need commercial licenses right? The mind
>
> boggles.
>
> Yup, and, iirc, the original terms of Qt's dual license required that
> you make a decision up front--if you were going to develop a commercial
> application under the commercial (not GPL) license, you had to decide
> when you started developing your application, and from that point, pay
> for Qt.  (If that was not for Qt, it was for some other dual licensed
> library.)

Yup, up front. I have always felt that was a bit onerous and perhaps extremely 
hard to enforce, but that is what they require.
>
> Randy Kramer

all the best,

drew