message: Attempt to make AppVeyor happy.
diff: @@ -283,7 +283,7 @@ static MFEM_HOST_DEVICE int GetAndIncrementNnzIndex(const int i_L, int* I)
  int ElementRestriction::FillI(SparseMatrix &mat) const
  {
  - const int max = MaxNbNbr;
  + constexpr int max = MaxNbNbr;
  const int all_dofs = ndofs;
  const int vd = vdim;
  const int elt_dofs = dof;
  @@ -361,7 +361,7 @@ int ElementRestriction::FillI(SparseMatrix &mat) const
  void ElementRestriction::FillJAndData(const Vector &ea_data,
  SparseMatrix &mat) const
  {
  - const int max = MaxNbNbr;
  + constexpr int max = MaxNbNbr;
  const int all_dofs = ndofs;
  const int vd = vdim;
  // const bool t = byvdim; //TODO use vd
  