+diff -urN tcpdump-3.8.3.old/tcpdump.c tcpdump-3.8.3.dev/tcpdump.c
+--- tcpdump-3.8.3.old/tcpdump.c 2004-03-17 20:47:48.000000000 +0100
++++ tcpdump-3.8.3.dev/tcpdump.c 2005-04-29 00:53:20.000000000 +0200
+@@ -596,20 +596,6 @@
+ error("invalid data link type %s", dlt_name);
+ break;
+
+-#if defined(HAVE_PCAP_DEBUG) || defined(HAVE_YYDEBUG)
+- case 'Y':
+- {
+- /* Undocumented flag */
+-#ifdef HAVE_PCAP_DEBUG
+- extern int pcap_debug;
+- pcap_debug = 1;
+-#else
+- extern int yydebug;
+- yydebug = 1;
+-#endif
+- }
+- break;
+-#endif
+ default:
+ usage();
+ /* NOTREACHED */