Configure fails when VTK_BUILD_TESTING and VTK_USE_MPI are ON.
cmake -DVTK_USE_MPI=ON -DVTK_BUILD_TESTING=ON ../VTK/git
results in
CMake Error at CMake/vtkModule.cmake:2507 (message):
The VTK::ioss dependency is missing for VTK::IOIoss.
Call Stack (most recent call first):
CMakeLists.txt:365 (vtk_module_build)