Am 07.09.2015 03:11, schrieb Dennis E. Hamilton:
I can speak to the specific case.
The desire is to adopt Qt as the best-choice, most-cross-platform GUI
framework for Corinthia on the desktop. The non-commercial,
open-source license for Qt is LGPL/GPL. See
<http://www.qt.io/download-open-source/>.
As I understand it, a second-thought alternative to full-up
dependence on Qt is to make an experimental implementation that
employs a wrapper API under which a Qt-specific integration layer is
introduced. The Qt integration layer is meant to be optionally
replaceable by an alternative one and corresponding framework under
the wrapper API. The wrapper API and integration layer for any
functionally-equivalent integration/replacement is TBD. A cautionary
concern was raised about the prudence of having an
optional-replacement of an LGPL dependence rather than an
optionally-employable LGPL dependence.
No specific proposal or request for any sort of exception is at
legal-discuss or the LEGAL JIRA.
I am not sure that approach is realistic. I mean, if you say it must be
optional and not required, then there must be an existing alternative.
And that alternative must be not LGPL. If there is such a toolkit, then
why not go with that right away? The project has to manage its resources
well.
Also I am not fully understanding the problem I guess. It can't be
source problem, as long as the LGPL source is not included. compiling
against an public available LGPL source for dynamic linking itself can
also not be the problem. I do see a problem in the distribution of the
dynamic linked library. But if you do not distribute it and expect the
system to have it, then it should be no deal breaker. I mean otherwise
you could not compile against glibc or example.
And thinking this further... assuming QT is optional somehow. Why is it
then suddenly ok to distribute it in the convenience binary? Imho it is
not, even then.
Legal makes a difference for language/platform lgpl code. But why I
don't understand. A ticket for LEGAL in that matter would be good, but I
think that should be done by a member of the corinthia project. As I
know legal, it will depend on the special case and there won't be a
general answer.
bye blackdrag
--
Jochen "blackdrag" Theodorou
blog: http://blackdragsview.blogspot.com/
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