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conda-forge / vtk-feedstock

A conda-smithy repository for vtk.
BSD 3-Clause "New" or "Revised" License
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vtk and Qt support ? #9

Closed hadim closed 8 years ago

hadim commented 8 years ago

I guess the option needs to be enable during the build. Qt4 is available in conda forge and Qt5 should be also available soon.

-DVTK_QT_VERSION:STRING=5 \
-DVTK_Group_Qt:BOOL=ON \

See here for Qt5 progress https://github.com/conda-forge/qt-feedstock/issues/5

ccordoba12 commented 8 years ago

The problem is that this is not an optional dependency, i.e. if you compile VTK with Qt then Qt becomes a runtime, hard dependency of VTK.

Korijn commented 8 years ago

A very common misunderstanding though, as I'm starting to experience. :) I wonder if it will ever become a possibility for VTK to switch at runtime!

hadim commented 8 years ago

Sorry @ccordoba12 I am not sure to understand. Does that mean by enabling Qt during the build, Qt MUST be present during runtime ?

In this case we could build an alternative version of vtk having Qt support ? http://conda.pydata.org/docs/building/meta-yaml.html#features

hadim commented 8 years ago

Note that I was able to use from vtk.qt.QVTKRenderWindowInteractor import QVTKRenderWindowInteractor as vtk_renderer with the vtk version in conda forge... so I guess I have everything I need here.

Should I close ?

Korijn commented 8 years ago

That does sound like a valid workaround.

@jakirkham @ocefpaf the need for a policy on alternative builds (optional deps) is a recurring topic... :)

jakirkham commented 8 years ago

Had opened this issue ( https://github.com/conda/conda/issues/3299 ) awhile back. Not much we can do until it is solved in conda/conda-build.

ccordoba12 commented 8 years ago

There's are some discussions on how to address this: https://github.com/conda/conda-build/issues/1338