From 7a9c31e45e90bb764f2222d2bd1a064bbbb3ef23 Mon Sep 17 00:00:00 2001
From: Gerd Moellmann <gerd@gnu.org>
Date: Wed, 17 Jan 2001 16:53:55 +0000
Subject: [PATCH] (direct_output_for_insert): If char_ins_del_ok is zero, use
 this method only at the end of a line.

---
 src/dispnew.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/dispnew.c b/src/dispnew.c
index f9d9fb2d856..c18838df2bf 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -3417,6 +3417,12 @@ direct_output_for_insert (g)
       || (!window_redisplay_p && !WINDOW_FULL_WIDTH_P (w)))
     return 0;
 
+  /* If we can't insert glyphs, we can use this method only
+     at the end of a line.  */
+  if (!char_ins_del_ok)
+    if (PT != ZV && FETCH_BYTE (PT_BYTE) != '\n')
+      return 0;
+
   /* Set up a display iterator structure for W.  Glyphs will be
      produced in scratch_glyph_row.  Current position is W's cursor
      position.  */
-- 
2.30.2