large. (400 - 31)/2 == 184 */
#define MAX_AGENT_EXPR_LEN 184
+/* A hook used to notify the UI of tracepoint operations. */
+
+void (*deprecated_trace_find_hook) (char *arg, int from_tty);
+void (*deprecated_trace_start_stop_hook) (int start, int from_tty);
extern void (*deprecated_readline_begin_hook) (char *, ...);
extern char *(*deprecated_readline_hook) (char *);