From 62de88f3e07be4580f125196cd99060a483198f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christoph=20Gr=C3=BCninger?= <foss@grueninger.de>
Date: Sun, 29 Mar 2020 15:05:48 +0200
Subject: [PATCH] Add missing include

GCC 10 complains about missing size_t
---
 dumux/common/properties/propertysystemmacros.hh | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dumux/common/properties/propertysystemmacros.hh b/dumux/common/properties/propertysystemmacros.hh
index 6a887dc7f9..650b445355 100644
--- a/dumux/common/properties/propertysystemmacros.hh
+++ b/dumux/common/properties/propertysystemmacros.hh
@@ -45,6 +45,8 @@ DUMUX_ENABLE_OLD_PROPERTY_MACROS defaults to 1 (true) until release 3.1. \
 After release 3.1 it will default to 0 (false) so you will have to manually \
 enable property macros in order to use them."
 
+#include <cstddef>
+
 #include <dumux/common/properties/propertysystem.hh>
 
 namespace Dumux {
-- 
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