Avoid infinite recursion with 'relative' line numbers display

* src/xdisp.c (display_count_lines_visually): Bind
'display-line-numbers' to 'relative' around 'start_display' as
well, since that can invoke 'move_it_to' internally, thus
causing infinite recursion.  (Bug#43589)

1 files changed, 3 insertions, 2 deletions

diff --git a/src/xdisp.c b/src/xdisp.c
index d191ef51700..2af6144975a 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -22682,10 +22682,11 @@ display_count_lines_visually (struct it *it)
           SET_TEXT_POS (from, PT, PT_BYTE);
           to = IT_CHARPOS (*it);
         }
-      start_display (&tem_it, it->w, from);
       /* Need to disable visual mode temporarily, since otherwise the
-         call to move_it_to will cause infinite recursion.  */
+         call to move_it_to below and inside start_display will cause
+         infinite recursion.  */
       specbind (Qdisplay_line_numbers, Qrelative);
+      start_display (&tem_it, it->w, from);
       /* Some redisplay optimizations could invoke us very far from
          PT, which will make the caller painfully slow.  There should
          be no need to go too far beyond the window's bottom, as any