1 files changed, 0 insertions, 29 deletions
diff --git a/src/xterm.h b/src/xterm.h
index eccaadcc734..8a25d077632 100644
--- a/src/xterm.h
+++ b/src/xterm.h
@@ -171,35 +171,6 @@ struct event_queue
 /* Queue for mouse clicks.  */
 extern struct event_queue x_mouse_queue;
 
-/* Mechanism for interlocking between main program level
-   and input interrupt level.  */
-
-/* Nonzero during a critical section.  At such a time, an input interrupt
-   does nothing but set `x_pending_input'.  */
-extern int x_input_blocked;
-
-/* Nonzero means an input interrupt has arrived
-   during the current critical section.  */
-extern int x_pending_input;
-
-/* Begin critical section. */
-#define BLOCK_INPUT (x_input_blocked++)
-
-/* End critical section. */
-#ifdef SIGIO
-/* If doing interrupt input, and an interrupt came in when input was blocked,
-   reinvoke the interrupt handler now to deal with it.  */
-#define UNBLOCK_INPUT \
-  ((x_input_blocked--, (x_input_blocked < 0 ? (abort (), 0) : 0)),	\
-   (x_input_blocked == 0 && x_pending_input != 0 ? (kill (0, SIGIO), 0) : 0))
-#else
-#define UNBLOCK_INPUT \
-  (x_input_blocked--, (x_input_blocked < 0 ? (abort (), 0) : 0))
-#endif
-
-#define TOTALLY_UNBLOCK_INPUT (x_input_blocked = 0)
-#define UNBLOCK_INPUT_RESIGNAL UNBLOCK_INPUT
-
 /* This is the X connection that we are using.  */
 
 extern Display *x_current_display;