Hi,
As I have said earlier in this thread it can feel odd that the restriction of
mixing extends also to the Qt tools, even in case framework libraries are not
used.
I want to again emphasize that this is something that does not affect
open-source use of Qt – as long as it is not done in conjunction with a
commercially licensed Qt.
We have been considering of separately licensing some of the tools, but no
decisions done yet.
Yours,
Tuukka
From: tomek <osmial.to...@gmail.com>
Date: Wednesday 1. April 2020 at 13.28
To: Tuukka Turunen <tuukka.turu...@qt.io>
Cc: Krzysztof Kawa <krzysiek.k...@gmail.com>, "interest@qt-project.org"
<interest@qt-project.org>
Subject: Re: [Interest] Qt Creator licensing for companies with Qt Commercial
developers
Hi Tuukka,
so if the company's product is say modern car's head unit which is built from
many, many blocks and to build one of those (UI) Qt with commercial license was
used then hundreds or thousands of developers in the same company or many
subcontractor companies developers are forbidden to use Qt Creator based on GPL
license as their IDE of choice to C/C++ code development within that product
(but for other modules not relying on Qt at all, physically stored in different
repos/subrepos)? From the company/project management perspective there will be
most probably many projects (per module/block) but in the end all will be
bundled into one package which will land on the blackbox so according to your
explanation it will be license violation, right?
Thanks,
Tomasz/
śr., 1 kwi 2020 o 07:24 Tuukka Turunen
<tuukka.turu...@qt.io<mailto:tuukka.turu...@qt.io>> napisał(a):
Hi,
To me your example does not sound problematic assuming that your application is
like a typical app - a clearly different thing than the store that sells apps
(the store sells a lot of different apps and your is in no way relevant for
operating the store etc).
Also, for any particular real case at hand, you can ask if something is allowed
for you or not.
Yours,
Tuukka
On 31.3.2020, 23.15, "Interest on behalf of Krzysztof Kawa"
<interest-boun...@qt-project.org<mailto:interest-boun...@qt-project.org> on
behalf of krzysiek.k...@gmail.com<mailto:krzysiek.k...@gmail.com>> wrote:
> The key point is: The Qt Company, just like Trolltech initially and other
companies in between, does not want mixing open-source Qt and commercial Qt.
> Reason is simple: if mixing was allowed, many companies would use it to
pay less for their use of Qt.
> It is unfortunate that also real open-source projects may be affected in
some cases. Majority of users are not affected in any way.
This got me thinking about quite a simple case that doesn't seem so
simple now: Lets say I make a game using open-source licensed Qt, or
even just open-source licensed Qt Creator. After few years of
development I decide to publish the game. It just so happens that my
publisher has a storefront app using commercial Qt or even just
written in Qt Creator under commercial license. To put my app in their
store there's usually some API, config file or whatever that
technically makes it mixing the two, even if not through Qt based
interface. Does that mean I can't publish my app in that store? If
that's the case then this pretty much makes Qt dead for any sort of
game development because there's no possible way to know which
publishers are gonna use what tech and under what license by the time
you ship. Same thing goes for any app distributed through external
stores I guess and I know at least few that use Qt.
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