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-rw-r--r--lisp/frame.el4
1 files changed, 4 insertions, 0 deletions
diff --git a/lisp/frame.el b/lisp/frame.el
index 01225639ecf..c182a964820 100644
--- a/lisp/frame.el
+++ b/lisp/frame.el
@@ -1657,6 +1657,10 @@ terminals, cursor blinking is controlled by the terminal."
(make-variable-buffer-local 'show-trailing-whitespace)
+;; Defined in dispnew.c.
+(make-obsolete-variable
+ 'window-system-version "it does not give useful information." "24.3")
+
(provide 'frame)
;;; frame.el ends here