message: umpire 6 requires us to include the specifc strategy header we are using
diff: #endif
  #ifdef MFEM_USE_UMPIRE
  -#include "umpire/Umpire.hpp"
  +#include <umpire/Umpire.hpp>
  +#include <umpire/strategy/DynamicPool.hpp>
  // Make sure Umpire is build with CUDA support if MFEM is built with it.
  #if defined(MFEM_USE_CUDA) && !defined(UMPIRE_ENABLE_CUDA)
  