From b0c6cec4b0ac5356f06340a87091a60d601c5c91 Mon Sep 17 00:00:00 2001
From: Martin Rudalics <rudalics@gmx.at>
Date: Sat, 6 Oct 2007 09:49:22 +0000
Subject: [PATCH] (XTread_socket): When focus_follows_mouse is nil make
 SELECT_WINDOW_EVENT only if we don't leave the selected frame.

---
 src/macterm.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/macterm.c b/src/macterm.c
index f101899ddf..726a0f72b1 100644
--- a/src/macterm.c
+++ b/src/macterm.c
@@ -11128,7 +11128,13 @@ XTread_socket (sd, expected, hold_quit)
 			     will be selected only when it is active.  */
 			  if (WINDOWP (window)
 			      && !EQ (window, last_window)
-			      && !EQ (window, selected_window))
+			      && !EQ (window, selected_window)
+			      /* For click-to-focus window managers
+			         create event iff we don't leave the
+			         selected frame.  */
+			      && (focus_follows_mouse
+				  || (EQ (XWINDOW (window)->frame,
+					  XWINDOW (selected_window)->frame))))
 			    {
 			      inev.kind = SELECT_WINDOW_EVENT;
 			      inev.frame_or_window = window;
-- 
2.39.2