Op 22/07/2016 om 11:41 schreef Ch'Gans:
On 22 July 2016 at 20:25, Jean-Michaël Celerier
<jeanmichael.celer...@gmail.com> wrote:
I was pointed out that there's a potential LGPLv3 license
infringement, although I understand where the FUD is coming from, I
think that it is OK to read LGPLv3 source code to get inspired as long
as you don't blindly copy/paste code (In my case i checked out quite a
few articles and forum threads before choosing the Qt way as the best
way to do it for my application).
There is no infrigement, you can even use directly qFuzzyCompare in your
proprietary code :
From the LGPLv3.0
The object code form of an Application may incorporate material from a
header file that is part of the Library. You may convey such object code
under terms of your choice, provided that, if the incorporated material is
not limited to numerical parameters, data structure layouts and accessors,
or small macros, inline functions and templates (ten or fewer lines in
length), you do both of the following:
a) Give prominent notice with each copy of the object code that the Library
is used in it and that the Library and its use are covered by this License.
b) Accompany the object code with a copy of the GNU GPL and this license
document.
Interesting excerpt indeed. So you can use small inlines and templates
of a LGPLv3 header file "under terms of your choice"! What a surprise!
This is quite liberal for a so-called "viral" license.
I'm using "viral" here because this is quite often the term used to
spread FUD, I have personally always liked GNU licenses and have great
respect toward all the people behind them.
Thanks a lot for pointing that out.
Please be careful there. It is about *object code*, not source code! The
idea of this section is to deal with the reality of compilers and
linkers: stuff from headers ends up in your own object files. So, the
license allows that to happen. It is *not* a licence to copy sources
into your own sources and compiling that.
And yes: studying source code from GPL like-licenced projects is
explicitly encouraged.
André
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