(struct frame): New member updated_p.

diff --git a/src/frame.h b/src/frame.h
index b6da35ed23a01c96424b947ae3c5204aa5345ced..292074b0ebfb12587e188b082ca4844d3eb199f5 100644 (file)
--- a/src/frame.h
+++ b/src/frame.h
@@ -468,6 +468,9 @@ struct frame
   /* Set to non-zero if this frame has already been hscrolled during
      current redisplay.  */
   unsigned already_hscrolled_p : 1;
+
+  /* Set to non-zero when current redisplay has updated frame.  */
+  unsigned updated_p : 1;
 };
 
 #ifdef MULTI_KBOARD