1 files changed, 4 insertions, 1 deletions

diff --git a/src/blockinput.h b/src/blockinput.h
index eba192c9863..a4c8a9b9c22 100644
--- a/src/blockinput.h
+++ b/src/blockinput.h
@@ -1,5 +1,5 @@
 /* blockinput.h - interface to blocking complicated interrupt-driven input.
-   Copyright (C) 1989, 1993 Free Software Foundation, Inc.
+   Copyright (C) 1989, 1993, 2004 Free Software Foundation, Inc.
 
 This file is part of GNU Emacs.
 
@@ -97,6 +97,9 @@ extern int pending_atimers;
 #define TOTALLY_UNBLOCK_INPUT (interrupt_input_blocked = 0)
 #define UNBLOCK_INPUT_RESIGNAL UNBLOCK_INPUT
 
+/* In critical section ? */
+#define INPUT_BLOCKED_P (interrupt_input_blocked > 0)
+
 /* Defined in keyboard.c */
 /* Don't use a prototype here; it causes trouble in some files.  */
 extern void reinvoke_input_signal ();