Hello.
At the moment, the Windows installer for 0.13 includes "msvc*.dll" (see
CMakeLists.txt). Including these libraries in a distribution package
presented as GPL may be a violation of the GPL.
See the GPL FAQ:
http://www.gnu.org/licenses/gpl-faq.html#WindowsRuntimeAndGPL
You may not distribute these libraries in compiled DLL form with the
> program. To prevent unscrupulous distributors from trying to use the System
> Library exception as a loophole, the GPL says that libraries can only
> qualify as System Libraries as long as they're not distributed with the
> program itself. If you distribute the DLLs with the program, they won't be
> eligible for this exception anymore; then the only way to comply with the
> GPL would be to provide their source code, which you are unable to do.
I think that they are referring to this part of section 3 of GPL v2:
However, as a
> special exception, the source code distributed need not include
> anything that is normally distributed (in either source or binary
> form) with the major components (compiler, kernel, and so on) of the
> operating system on which the executable runs, unless that component
> itself accompanies the executable.
>
AFAIK, VC redistributable files need to be installed only on Windows XP, as
later versions of Windows include some of them by default.
I'll try to look more into this issue. A possible solution is to have two
versions on Windows, one MinGW/OpenGL for those with newer graphics
cards/OSes, one MSVC/ANGLE that requires additional installation of DirectX
and/or the VC redistributables. I think that the installer can be made to
check for those libraries.
Bogdan
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