message: Try to make AppVeyor happy...
diff: @@ -297,10 +297,10 @@ int ElementRestriction::FillI(SparseMatrix &mat) const
  });
  MFEM_FORALL(e, ne,
  {
  - constexpr int MaxNbNbr = max;
  + constexpr int Max = max;
  for (int i = 0; i < elt_dofs; i++)
  {
  - int i_elts[MaxNbNbr];
  + int i_elts[Max];
  const int i_E = e*elt_dofs + i;
  const int i_L = d_gatherMap[i_E];
  const int i_offset = d_offsets[i_L];
  @@ -324,15 +324,14 @@ int ElementRestriction::FillI(SparseMatrix &mat) const
  }
  else // assembly required
  {
  - int j_elts[MaxNbNbr];
  + int j_elts[Max];
  for (int e_j = 0; e_j < j_nbElts; ++e_j)
  {
  const int j_E = d_indices[j_offset+e_j];
  const int elt = j_E/elt_dofs;
  j_elts[e_j] = elt;
  }
  - int min_e = GetMinElt<MaxNbNbr>(i_elts, i_nbElts,
  - j_elts, j_nbElts);
  + int min_e = GetMinElt<Max>(i_elts, i_nbElts, j_elts, j_nbElts);
  if (e == min_e) //Rational to add the nnz only once
  {
  GetAndIncrementNnzIndex(i_L, I);
  @@ -372,11 +371,11 @@ void ElementRestriction::FillJAndData(const Vector &ea_data,
  auto mat_ea = Reshape(ea_data.Read(), elt_dofs, elt_dofs, ne);
  MFEM_FORALL(e, ne,
  {
  - constexpr int MaxNbNbr = max;
  + constexpr int Max = max;
  for (int i = 0; i < elt_dofs; i++)
  {
  - int i_elts[MaxNbNbr];
  - int i_B[MaxNbNbr];
  + int i_elts[Max];
  + int i_B[Max];
  const int i_E = e*elt_dofs + i;
  const int i_L = d_gatherMap[i_E];
  const int i_offset = d_offsets[i_L];
  @@ -403,8 +402,8 @@ void ElementRestriction::FillJAndData(const Vector &ea_data,
  }
  else // assembly required
  {
  - int j_elts[MaxNbNbr];
  - int j_B[MaxNbNbr];
  + int j_elts[Max];
  + int j_B[Max];
  for (int e_j = 0; e_j < j_nbElts; ++e_j)
  {
  const int j_E = d_indices[j_offset+e_j];
  @@ -412,8 +411,7 @@ void ElementRestriction::FillJAndData(const Vector &ea_data,
  j_elts[e_j] = elt;
  j_B[e_j] = j_E%elt_dofs;
  }
  - int min_e = GetMinElt<MaxNbNbr>(i_elts, i_nbElts,
  - j_elts, j_nbElts);
  + int min_e = GetMinElt<Max>(i_elts, i_nbElts, j_elts, j_nbElts);
  if (e == min_e) //Rational to add the nnz only once
  {
  double val = 0.0;
  