New variable tab-bar-position

* lisp/cus-start.el: Add customization for tab-bar-position.
* src/dispnew.c (syms_of_display): New variable Vtab_bar_position.
(adjust_frame_glyphs_for_window_redisplay): Use it.

1 files changed, 2 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index d06f0a59528..d6a7231474e 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -2134,6 +2134,8 @@ disabled: by default, they enable tab-bar-mode in that case.
 The X resource "tabBar", class "TabBar" enables the tab bar
 when its value is "on", "yes" or "1".
 
+The variable 'tab-bar-position' specifies where to show the tab bar.
+
 Read the new Info node "(emacs) Tab Bars" for full description
 of all related features.