#ifndef SIMGRID_S4U_MAILBOX_HPP
#define SIMGRID_S4U_MAILBOX_HPP
-#include <string>
-
-#include <xbt/base.h>
#include <xbt/string.hpp>
-
-#include <simgrid/s4u/forward.hpp>
#include <simgrid/s4u/Actor.hpp>
+#include <string>
+
namespace simgrid {
namespace s4u {