From a392907978506408482d0bdd388534455ba8dfba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jean-No=C3=ABl=20Grad?= <jgrad@icp.uni-stuttgart.de>
Date: Wed, 28 Oct 2020 21:22:39 +0100
Subject: [PATCH] core: Add guard for boost 1.74.0

This <boost/serialization/version.hpp> include guards against an issue
in boost::serialization from boost 1.74.0 that leads to compiler error
"explicit specialization of undeclared template struct 'version'" when
including <boost/serialization/optional.hpp>. More details in tickets:
https://github.com/boostorg/serialization/issues/210
https://github.com/boostorg/serialization/issues/217

diff --git a/src/core/grid_based_algorithms/lb_particle_coupling.hpp b/src/core/grid_based_algorithms/lb_particle_coupling.hpp
index de12cb4..13111ab 100644
--- a/src/core/grid_based_algorithms/lb_particle_coupling.hpp
+++ b/src/core/grid_based_algorithms/lb_particle_coupling.hpp
@@ -21,6 +21,15 @@

 #include "ParticleRange.hpp"

+/* This <boost/serialization/version.hpp> include guards against an issue
+ * in boost::serialization from boost 1.74.0 that leads to compiler error
+ * "explicit specialization of undeclared template struct 'version'" when
+ * including <boost/serialization/optional.hpp>. More details in tickets:
+ * https://github.com/boostorg/serialization/issues/210
+ * https://github.com/boostorg/serialization/issues/217
+ */
+#include <boost/serialization/version.hpp>
+
 #include <boost/serialization/optional.hpp>

 #include "ParticleRange.hpp"