tentative

---
 readline/display.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/readline/display.c b/readline/display.c
index 712ca79b6d..f34ad05444 100644
--- a/readline/display.c
+++ b/readline/display.c
@@ -452,6 +452,9 @@ init_line_structures (minsize)
 {
   register int n;
 
+  if (minsize <= _rl_screenwidth)	/* XXX - for gdb */
+    minsize = _rl_screenwidth + 1;
+
   if (invisible_line == 0)	/* initialize it */
     {
       if (line_size < minsize)
@@ -528,6 +531,8 @@ rl_redisplay ()
       init_line_structures (0);
       rl_on_new_line ();
     }
+  else if (line_size <= _rl_screenwidth)
+    init_line_structures (_rl_screenwidth + 1);
 
   /* Draw the line into the buffer. */
   cpos_buffer_position = -1;