-#if !defined(SIMGRID_VERSION) // ========== SimGrid <= 3.5 ============= //
-
-#define MSG_WAIT_DESTROYS_COMMS 1
-
-inline
-MSG_error_t MSG_comm_get_status(msg_comm_t /*comm*/)
-{
- return MSG_OK;
-}
-
-#else // ================================= SimGrid > 3.5 ============== //
-
-#define MSG_WAIT_DESTROYS_COMMS 0
-
-#endif // ============================================================= //
+#if !defined(SIMGRID_VERSION) || SIMGRID_VERSION < 31800UL // == SG < 3.18 == //
+# error "Unsupported SimGrid version. Need version >= 3.18"
+#endif // =================================================================== //