Fix the longstanding hang-on-exit bug in eterm, as well as making sure the history is saved when the terminal emulator exits

darcs-hash:20060514101623-ac50b-f8ce693ec111e3c158640ef8de309bf7e5484c5b.gz

event.h

@@ -136,4 +136,9 @@ void event_free( event_t *e );
 */
 const wchar_t *event_get_desc( event_t *e );
 
+/**
+   Returns a non-zero status if there are event listeners that fire on the specified signal
+*/
+int event_signal_listen( int signal );
+
 #endif