Modified to include comments on how to get TCPDEBUG turned on and

printing messages.

cpukit/libnetworking/opt_tcpdebug.h

@@ -4,3 +4,13 @@
 
 /* intentionally empty file */
 
+/*
+ *  Uncomment the following line to turn on debug code.  When you define
+ *  this symbol, tcp_trace() is called.  If you want tcp_trace() to
+ *  print, then you need to edit netinet/tcp_debug to set the variable
+ *  "tcpconsdebug" to 1.
+ */
+
+/*
+#define TCPDEBUG
+*/