From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Thu, 12 May 2022 03:04:04 +0000 (-0600)
Subject: Add a necessary include.
X-Git-Tag: v9.4.0-rc1~223^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0139f45d59161d1e530f1f378924959eb953b350;p=dealii.git

Add a necessary include.
---

diff --git a/source/matrix_free/vector_data_exchange.cc b/source/matrix_free/vector_data_exchange.cc
index f4b81fba22..f30e41936f 100644
--- a/source/matrix_free/vector_data_exchange.cc
+++ b/source/matrix_free/vector_data_exchange.cc
@@ -24,6 +24,8 @@
 
 #ifdef DEAL_II_WITH_64BIT_INDICES
 #  include <deal.II/base/mpi_consensus_algorithms.templates.h>
+
+#  include <boost/serialization/utility.hpp>
 #endif
 
 #include <map>