From a86d4aefc46728a6a08515de340a6efe23df5674 Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Thu, 8 Feb 2024 14:21:07 -0700
Subject: [PATCH] Also instantiate the Trilinos Tpetra VectorReference class.

---
 source/lac/trilinos_tpetra_vector.cc | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/source/lac/trilinos_tpetra_vector.cc b/source/lac/trilinos_tpetra_vector.cc
index dc38057124..f858d8d0bf 100644
--- a/source/lac/trilinos_tpetra_vector.cc
+++ b/source/lac/trilinos_tpetra_vector.cc
@@ -36,13 +36,23 @@ namespace LinearAlgebra
     static_assert(concepts::is_vector_space_vector<Vector<float>>);
 #    endif
     template class Vector<float>;
+    namespace internal
+    {
+      template class VectorReference<float>;
+    }
 #  endif
+
 #  ifdef HAVE_TPETRA_INST_DOUBLE
 #    ifdef DEAL_II_HAVE_CXX20
     static_assert(concepts::is_vector_space_vector<Vector<double>>);
 #    endif
     template class Vector<double>;
+    namespace internal
+    {
+      template class VectorReference<double>;
+    }
 #  endif
+
 #  ifdef DEAL_II_WITH_COMPLEX_VALUES
 #    ifdef HAVE_TPETRA_INST_COMPLEX_FLOAT
 #      ifdef DEAL_II_HAVE_CXX20
@@ -50,13 +60,22 @@ namespace LinearAlgebra
                   Vector<std::complex<float>>);
 #      endif
     template class Vector<std::complex<float>>;
+    namespace internal
+    {
+      template class VectorReference<std::complex<float>>;
+    }
 #    endif
+
 #    ifdef HAVE_TPETRA_INST_COMPLEX_DOUBLE
 #      ifdef DEAL_II_HAVE_CXX20
     static_assert(concepts::is_vector_space_vector <
                   Vector<std::complex<double>>);
 #      endif
     template class Vector<std::complex<double>>;
+    namespace internal
+    {
+      template class VectorReference<std::complex<double>>;
+    }
 #    endif
 #  endif
   } // namespace TpetraWrappers
-- 
2.39.5