[vtk-developers] vtk-8.2.0-rc2 problem building wheels

[David E DeMarle]

I think the dependency comes in for the sake of VTK's python tests, as
those call vtkpython.
Prabu can you try this and see if you get a pip worthy build out of it?
https://gitlab.kitware.com/demarle/vtk/commits/WIP-break-wrappings-vtkpythoninterpreter-dependency
Note you must set these two configure flags to get it to compile.
BUILD_TESTING:BOOL=OFF
VTK_ENABLE_VTKPYTHON:BOOL=OFF
Longer term we should do a clean break by trying to move the bits of
VTKPYTHON that remain in Wrapping/PythonCore to
Utilities/PythonInterpretter and making sure the python tests agree.

Regarding matplotlib, for the moment just leave it off in the wheels. Ben's
point of wrapping everything and the corrolary that VTK's modules should be
atomic (options don't change the library internals) is an important goal
that we won't fix in 8.2. We made strides in VTK 6.0 and will get much
closer in 9.0, hopefully packagers and all consumers of VTK will have a
better time of it after 9.

David E DeMarle
Kitware, Inc.
Principal Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909



On Wed, Nov 28, 2018 at 3:44 PM Ben Boeckel via vtk-developers <
vtk-developers at public.kitware.com> wrote:

> On Wed, Nov 28, 2018 at 15:06:43 -0500, Prabhu Ramachandran wrote:
> > Does vtkWrappingPythonCore depend on vtkPythonInterpreter?
> > vtkWrappingPythonCore does not link to libpython or to
> vtkPythonInterpreter.
>
> My bad, it's a COMPILE_DEPENDS. Though why that is isn't obvious.
> Removing that dependency and then disabling the module should work.
>
> > The wheels by default do not seem to enable vtkRenderingMatplotlib
> although I am
> > not sure if it should be added by default in the future, in which case
> this is a
> > more serious issue.
>
> IMO, distribution builds should try to enable *everything* so there
> isn't a question of "what do I have today?" when doing `import vtk`.
> Keeping it disabled for 8.2 sounds fine, but 9.x will make it easier to
> not have the linking problem.
>
> --Ben
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