---
src/config/config.hpp | 2 ++
1 file changed, 2 insertions(+)
--- a/src/config/config.hpp
+++ b/src/config/config.hpp
@@ -37,6 +37,8 @@
#define MPICH_SKIP_MPICXX
#endif
+#include <cstddef>
+
#include "config-features.hpp"
/** P3M: Default for offset of first mesh point from the origin (left