message: MFEM_USE_CUDA guard within MFEM_USE_UMPIRE
diff: @@ -477,6 +477,7 @@ public:
  };
  /// The Umpire device memory space
  +#ifdef MFEM_USE_CUDA
  class UmpireDeviceMemorySpace : public DeviceMemorySpace
  {
  private:
  @@ -501,6 +502,9 @@ public:
  void *DtoH(void *dst, const void *src, size_t bytes)
  { rm.copy(dst, const_cast<void*>(src), bytes); return dst; }
  };
  +#else
  +#endif // MFEM_USE_CUDA
  +class UmpireDeviceMemorySpace : public NoDeviceMemorySpace { };
  #endif // MFEM_USE_UMPIRE
  /// Memory space controller class
  