-// fixme: dirty hack
-#if defined(XBT_RUNNING_CTX_INITIALIZER)
-# define MSG_WAIT_DESTROYS_COMMS 0
-#else
-# define MSG_WAIT_DESTROYS_COMMS 1
-#endif
+#if !defined(SIMGRID_VERSION) // ========== SimGrid <= 3.5 ============= //
+# error "Unsupported SimGrid version. Need version > 3.5"
+#endif // ============================================================= //