extern int test_harness_load_avg; /* For use when testing */
extern int thismessage_size_limit; /* Limit for this message */
extern int timeout_frozen_after; /* Max time to keep frozen messages */
+#ifdef MEASURE_TIMING
+extern struct timeval timestamp_startup; /* For development measurements */
+#endif
extern uschar *transport_name; /* Name of transport last started */
extern int transport_count; /* Count of bytes transported */