(window-safely-shrinkable-p): Don't change the buffer-list.

Don't allow shrink if there's a window on our right.

diff --git a/lisp/window.el b/lisp/window.el
index c4ae59e148f5f0764f5b41d27f2a4926d85e293d..91b91cfb158766a10f3a1d3353eb33e170a76c7d 100644 (file)
--- a/lisp/window.el
+++ b/lisp/window.el
@@ -1,6 +1,6 @@
 ;;; window.el --- GNU Emacs window commands aside from those written in C
 
-;; Copyright (C) 1985, 1989, 1992, 1993, 1994, 2000, 2001, 2002
+;; Copyright (C) 1985, 1989, 1992, 1993, 1994, 2000, 2001, 2002, 2004
 ;;  Free Software Foundation, Inc.
 
 ;; Maintainer: FSF
@@ -188,13 +188,11 @@ even if it is inactive."
 (defun window-safely-shrinkable-p (&optional window)
   "Non-nil if the WINDOW can be shrunk without shrinking other windows.
 If WINDOW is nil or omitted, it defaults to the currently selected window."
-  (save-selected-window
-    (when window (select-window window))
-    (or (and (not (eq window (frame-first-window)))
-            (= (car (window-edges))
-               (car (window-edges (previous-window)))))
-       (= (car (window-edges))
-          (car (window-edges (next-window)))))))
+  (with-selected-window (or window (selected-window))
+    (let ((edges (window-edges)))
+      (or (= (nth 2 edges) (nth 2 (window-edges (previous-window))))
+         (= (nth 0 edges) (nth 0 (window-edges (next-window))))))))
+
 
 (defun balance-windows ()
   "Make all visible windows the same height (approximately)."