add missing prototype

svn:r235

diff --git a/src/or/or.h b/src/or/or.h
index fcd3acff8a8b6006d5ec276c08ae8f5dad12de44..1c7d9b53e4194643e3cff6a0b8165fb0b8e6a7cc 100644 (file)
--- a/src/or/or.h
+++ b/src/or/or.h
@@ -501,6 +501,7 @@ void circuit_about_to_close_connection(connection_t *conn);
 
 void circuit_dump_by_conn(connection_t *conn);
 
+void circuit_expire_unused_circuits(void);
 void circuit_launch_new(int failure_status);
 int circuit_create_onion(void);
 int circuit_establish_circuit(unsigned int *route, int routelen, char *onion,