Export external dependencies CMake variables required by "find_package()" into vtk-config associated with VTK build-tree
To drastically streamline the configuration of project indirectly depending on VTK build tree having module like OpenVR enabled, including the relevant CMake variables in the
vtk-config associated with the build tree should be implemented.
- For project providing a
<name>-config.cmakefile, the variable
<name>_DIRshould be included
- For project with a
Find<name>.cmakemodule shipped with VTK, the relevant
<name>_OPTION1should be exported.