111 int	debug = 0;			/* -d flag */  variable
460 		       (debug &&  in doread()
539 		       (debug &&  in domapread()
611 		       (debug &&  in dowrite()
669 		       (debug &&  in domapwrite()
728 	    (debug && (monitorstart == -1 || monitorend == -1 ||  in dotruncate()
771 	if (debug)  in docloseopen()
794 	if (debug)  in doinvl()
839 		debug = 1;  in test()
1019 			debug = 1;  in main()
1046 			debug = 1;  in main()