From: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Wed, 21 Jan 2004 05:24:01 +0000 (+0000)
Subject: (QUIT) [SYNC_INPUT]: Check interrupt_input_pending as well.
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(QUIT) [SYNC_INPUT]: Check interrupt_input_pending as well.
---

diff --git a/src/lisp.h b/src/lisp.h
index 72d24d79f05..b54668fb780 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -1726,6 +1726,9 @@ extern char *stack_bottom;
    This is a good thing to do around a loop that has no side effects
    and (in particular) cannot call arbitrary Lisp code.  */
 
+#ifdef SYNC_INPUT
+extern void handle_async_input P_ ((void));
+extern int interrupt_input_pending;
 #define QUIT						\
   do {							\
     if (!NILP (Vquit_flag) && NILP (Vinhibit_quit))	\
@@ -1733,8 +1736,24 @@ extern char *stack_bottom;
 	Vquit_flag = Qnil;				\
 	Fsignal (Qquit, Qnil);				\
       }							\
+    else if (interrupt_input_pending)			\
+      handle_async_input ();				\
   } while (0)
 
+#else  /* not SYNC_INPUT */
+
+#define QUIT						\
+  do {							\
+    if (!NILP (Vquit_flag) && NILP (Vinhibit_quit))	\
+      {							\
+	Vquit_flag = Qnil;				\
+	Fsignal (Qquit, Qnil);				\
+      }							\
+  } while (0)
+
+#endif	/* not SYNC_INPUT */
+
+
 /* Nonzero if ought to quit now.  */
 
 #define QUITP (!NILP (Vquit_flag) && NILP (Vinhibit_quit))