136 static const char * progname;	/* program name for error messages */  variable
144   fprintf(stderr, "usage: %s [switches] ", progname);  in usage()
253 	      progname);  in parse_switches()
309 	      progname);  in parse_switches()
326 	      progname);  in parse_switches()
394 	      progname);  in parse_switches()
479   progname = argv[0];  in main()
480   if (progname == NULL || progname[0] == 0)  in main()
481     progname = "cjpeg";		/* in case C library doesn't provide it */  in main()
518 	      progname);  in main()
525 	      progname);  in main()
532     fprintf(stderr, "%s: only one input file\n", progname);  in main()
540       fprintf(stderr, "%s: can't open %s\n", progname, argv[file_index]);  in main()
551       fprintf(stderr, "%s: can't open %s\n", progname, outfilename);  in main()