Make LA::TpetraWrappers::SparseMatrix::copy_from compatible with older Trilinos versions.

diff --git a/include/deal.II/lac/trilinos_tpetra_sparse_matrix.templates.h b/include/deal.II/lac/trilinos_tpetra_sparse_matrix.templates.h
index 48b836e320dd2b132562bc1006a8f5ca7f9388d5..a8c14978179dc610afc7809031441e84dd40b254 100644 (file)
--- a/include/deal.II/lac/trilinos_tpetra_sparse_matrix.templates.h
+++ b/include/deal.II/lac/trilinos_tpetra_sparse_matrix.templates.h
@@ -1022,9 +1022,14 @@ namespace LinearAlgebra
       // not need to perform a deep copy.
 
       // Perform a deep copy
+#  if DEAL_II_TRILINOS_VERSION_GTE(12, 18, 1)
       matrix =
         Utilities::Trilinos::internal::make_rcp<MatrixType>(*source.matrix,
                                                             Teuchos::Copy);
+#  else
+      matrix = source.matrix->clone(
+        Utilities::Trilinos::internal::make_rcp<NodeType>());
+#  endif
       column_space_map = Teuchos::rcp_const_cast<MapType>(matrix->getColMap());
       compressed       = source.compressed;
     }