#if 0 == (HAVE_SIGSETMASK)
#define sigsetmask(n)
#endif
+
+/* Hooks for alternate command interfaces. */
+
+/* Called after most modules have been initialized, but before taking users
+ command file. */
+
+void (*init_ui_hook) PARAMS ((void));
+
+/* Called instead of command_loop at top level. Can be invoked via
+ return_to_top_level. */
+
+void (*command_loop_hook) PARAMS ((void));
+
+/* Called instead of fputs for all output. */
+
+void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer));
+
+/* Called from print_frame_info to list the line we stopped in. */
+
+void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s, int line,
+ int stopline, int noerror));
+/* Replaces most of query. */
+
+int (*query_hook) PARAMS (());
+
+/* Called from gdb_flush to flush output. */
+
+void (*flush_hook) PARAMS ((FILE *stream));
+
+/* Called as appropriate to notify the interface of the specified breakpoint
+ conditions. */
+
+void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
+void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
+void (*enable_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
+void (*disable_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
\f
/* Where to go for return_to_top_level (RETURN_ERROR). */
jmp_buf error_return;