message: fixed ifdef for superlu
diff: @@ -424,9 +424,9 @@ int main(int argc, char *argv[])
  a.FormLinearSystem(ess_tdof_list, x, b, Ah, X, B);
  // 15. Solve using a direct or an iterative solver
  -#ifndef MFEM_USE_SUPERLU
  +#ifdef MFEM_USE_SUPERLU
  {
  - // 15. Transform to monolithic HypreParMatrix
  + // Transform to monolithic HypreParMatrix
  HypreParMatrix *A = Ah.As<ComplexHypreParMatrix>()->GetSystemMatrix();
  SuperLURowLocMatrix SA(*A);
  SuperLUSolver superlu(MPI_COMM_WORLD);
  