message: Use CACHE when setting RAJA's option variables
diff: @@ -53,15 +53,15 @@ set(RAJA_DATA_ALIGN 64)
  set(RAJA_COHERENCE_BLOCK_SIZE 64)
  if (ENABLE_OPENMP)
  - set(RAJA_ENABLE_OPENMP On)
  + set(RAJA_ENABLE_OPENMP On CACHE BOOL "")
  else()
  - set(RAJA_ENABLE_OPENMP Off)
  + set(RAJA_ENABLE_OPENMP Off CACHE BOOL "")
  endif()
  if (ENABLE_CUDA)
  - set(RAJA_ENABLE_CUDA On)
  + set(RAJA_ENABLE_CUDA On CACHE BOOL "")
  else()
  - set(RAJA_ENABLE_CUDA Off)
  + set(RAJA_ENABLE_CUDA Off CACHE BOOL "")
  endif()
  # exclude RAJA make targets from top-level build...
  