[vtk-developers] module system / cmake changes?

[Isaiah Norton]

Thanks for the detailed response!

On Thu, Dec 28, 2017 at 11:25 AM, Ben Boeckel <ben.boeckel at kitware.com>
wrote:

> On Thu, Dec 28, 2017 at 10:01:21 -0500, Isaiah Norton wrote:
> > I've seen several comments recently about upcoming changes to VTK's
> modules
> > and/or cmake system [1]. But I'm having trouble finding an
> > issue/wiki/thread about these plans.
> >
> > Any suggestions? (or perhaps it's only a shared-intention for revamps
> made
> > possible by CMake+compiler minimum-version bumps...)
>
> The plans have mostly been internal discussions, sorry. The branch is
> currently a work-in-progress. The commit history is a mess on the
> current branch, but I'm working on making proper commits for it (I'm in
> the middle of third-party stuff right now).
>
> Basically the idea is to make VTK leverage the new features in CMake
> since 3.0 with target-based logic rather than the old system's variable
> slinging and such.
>
> The core of it is here:
>
>     https://gitlab.kitware.com/ben.boeckel/vtk/blob/new-
> cmake-module/CMake/vtkModule.cmake
>
> A simple(ish) module:
>
>     https://gitlab.kitware.com/ben.boeckel/vtk/blob/new-
> cmake-module/Common/DataModel/CMakeLists.txt
>
> The new module file format (it is treated as a CMake argument block; no
> logic allowed):
>
>     https://gitlab.kitware.com/ben.boeckel/vtk/blob/new-
> cmake-module/Common/DataModel/vtk.module
>
> Language wrapping is also now done explicitly rather than implicitly
> based on global variables. This means that VTK uses the wrapping logic
> just as any other VTK-using library would:
>
>     https://gitlab.kitware.com/ben.boeckel/vtk/blob/new-
> cmake-module/CMakeLists.txt#L126
>
> Documentation needs improvement, but it will get there before merging.
> The plan is to extract it from the CMake files and dump it out for
> Doxygen to put into the official docs.
>
> Thanks,
>
> --Ben
>
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