From: Sebastian Kinnewig <kinnewig@ifam.uni-hannover.de>
Date: Mon, 19 Feb 2024 13:14:06 +0000 (+0100)
Subject: Make LA::TpetraWrappers::SparseMatrix::copy_from compatible with older Trilinos versions.
X-Git-Tag: relicensing~24^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b472d7b3a72bc9c52fc0dc0f29559c5ab256c43;p=dealii.git

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 48b836e320..a8c1497817 100644
--- 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;
     }