From: Martin Kronbichler <kronbichler@lnm.mw.tum.de>
Date: Thu, 16 Jun 2016 10:12:16 +0000 (+0200)
Subject: Avoid undefined symbols with Trilinos but without MPI.
X-Git-Tag: v8.5.0-rc1~974^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6190cd27ffa1bf72113b207fa595825cec182073;p=dealii.git

Avoid undefined symbols with Trilinos but without MPI.
---

diff --git a/include/deal.II/lac/la_parallel_vector.templates.h b/include/deal.II/lac/la_parallel_vector.templates.h
index 0784ff10ee..7e5d2e5cc1 100644
--- a/include/deal.II/lac/la_parallel_vector.templates.h
+++ b/include/deal.II/lac/la_parallel_vector.templates.h
@@ -458,6 +458,7 @@ namespace LinearAlgebra
     Vector<Number> &
     Vector<Number>::operator = (const TrilinosWrappers::MPI::Vector &trilinos_vec)
     {
+#ifdef DEAL_II_WITH_MPI
       IndexSet combined_set = partitioner->locally_owned_range();
       combined_set.add_indices(partitioner->ghost_indices());
       ReadWriteVector<Number> rw_vector(combined_set);
@@ -466,6 +467,9 @@ namespace LinearAlgebra
 
       if (vector_is_ghosted || trilinos_vec.has_ghost_elements())
         update_ghost_values();
+#else
+      AssertThrow(false, ExcNotImplemented());
+#endif
 
       return *this;
     }