[Gammaray-interest] Fwd: building GammaRay on OS X

[Kevin Funk]

On Thursday 28 May 2015 23:07:25 René J.V. Bertin wrote:
> On Thursday May 28 2015 16:47:44 Allen Winter wrote:
> > interesting.  we had a similar bug report recently for a Windows build
> > that got hit by the VTK stuff. but I think he had the opposite; ie. if
> > VTK is found then a Qt4 build was forced..
> Yes, I'd expect the opposite effect to arise if you have VTK built for Qt4
> and try to build the Qt5 probe.
> > looking at the bottom of /usr/lib64/cmake/vtk/VTKConfig.cmake I see:
> > SET(VTK_QT_VERSION "4")
> 
> Mine says "5" instead. Figures.
> 
> > seems we need to check VTK_QT_VERSION in our top-level CMakeLists.txt
> > then.
> > if building with qt5 and VTK_QT_VERSION is 4, then we turn-off vtk support
> > and vice-versa
> 
> The question is if you can do that without finding the package first, which
> will still mess up the Qt settings if they don't match?
> > oh, another trick you can use to turnoff VTK is
> > passing -DCMAKE_DISABLE_FIND_PACKAGE_VTK=True to cmake
> 
> Now that's a nice trick, thanks! Does that work for any package?

Yes.

https://blogs.kde.org/2011/11/11/cool-new-stuff-cmake-286-3-standard-way-disable-optional-packages
 
> René
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-- 
Kevin Funk | kevin.funk at kdab.com | Software Engineer
KDAB (Deutschland) GmbH&Co KG, a KDAB Group company
Tel. Germany +49-30-521325470, Sweden (HQ) +46-563-540090
KDAB - Qt Experts - Platform-independent software solutions
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