[Gtk-sharp-list] Solve duplicate Cairo# library bindings issue

Antonius Riha antoniusriha at gmail.com
Tue Sep 30 05:45:18 UTC 2014

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Does no one have an opinion on this?

On 2014-09-14 13:02, Antonius Riha wrote:
> Hi gtk-sharp community, I'm currently looking into the issue that
> the cairo library binding code exists in 2 different places: Once
> in the gtk-sharp repository and the second time in the class
> libraries of the mono repository. In my opinion, the 2 code bases
> are very similar and should be merged and put into a separate
> repository. I've filed 2 bugs with the respective components, see
> [1] and [2] for details.
> Since the cairo bindings are not distributed as a standalone
> package (but with gtk-sharp and mono), an eventual new cairo-sharp
> git repository should only be used as a simple source code
> container with a minimal MSBuild build infrastructure for
> development. This repository can be included in gtk-sharp and mono
> as git submodule. Since its not a package per se, it doesn't make
> sense to set up an autotools build system, which would just add to
> the repo overhead.
> There are some issues with this task. Primarily, the two libraries
> are licensed differently: The mono version it licensed as MIT/X11,
> whereas the gtk-sharp version is under LGPLv2. For merging the
> code, it would be best, if both had the same license. Since the
> mono class libraries are distributed as MIT/X11, I would suggest to
> attempt to relicense the Cairo# portion of the gtk-sharp repository
> as MIT/X11.[3]
> My questions to he community are: * Are there any other opinions
> about this issue, or whether this is actually an issue? * Which
> would be the necessary steps to relicense the Cairo# protion of the
> code as MIT/X11?
> - antonius
> [1] https://bugzilla.xamarin.com/show_bug.cgi?id=22975
> [2] https://bugzilla.xamarin.com/show_bug.cgi?id=22976
> [3] About the gtk-sharp package license: Since (to my knowledge)
> you can relicense MIT/X11 code as LGPLv2 without consent of the
> code owners (but not the other way around), I think it would be no
> problem to put the entire package (including the imported submodule
> Cairo#) under LGPLv2. (Note though that IANAL.)
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