message: Switch to capture by reference on the host
diff: @@ -55,7 +55,7 @@ void wrap(const size_t N, DBODY &&d_body, HBODY &&h_body)
  #define MFEM_FORALL_K(i,N,BLOCKS,...) \
  wrap<BLOCKS>(N, \
  [=] __device__ (size_t i){__VA_ARGS__}, \
  - [=] (size_t i){__VA_ARGS__})
  + [&] (size_t i){__VA_ARGS__})
  // *****************************************************************************
  uint32_t LOG2(uint32_t);
  