message: utilize more robust OSPRAY_SDK_USE_FILE
diff: @@ -22,13 +22,7 @@ mark_as_advanced(OSP_MPI_COMPRESSION_THRESHOLD)
  ## Build the MPI module ##
  -get_target_property(OPENVKL_INCLUDE_DIRS openvkl::openvkl
  - INTERFACE_INCLUDE_DIRECTORIES)
  -
  -ispc_include_directories(
  - ${CMAKE_CURRENT_BINARY_DIR}
  - ${EMBREE_INCLUDE_DIRS}
  - ${OPENVKL_INCLUDE_DIRS})
  +ispc_include_directories(${CMAKE_CURRENT_BINARY_DIR})
  add_library(ospray_module_mpi SHARED)
  