* frame.el (window-system-version): Mark as obsolete.

See http://lists.gnu.org/archive/html/emacs-devel/2012-05/msg00412.html

3 files changed, 9 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index ed59f3264ab..bc1c49fe946 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -695,6 +695,7 @@ by the underlying C implementation.
 
 ** `automount-dir-prefix' is obsolete.
 ** `buffer-has-markers-at' is obsolete.
+** `window-system-version' is obsolete.
 
 * Changes in Emacs 24.3 on non-free operating systems
 
diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index ccc517973b3..1f5f41c0e35 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,7 @@
+2012-09-06  Chong Yidong  <cyd@gnu.org>
+
+        * frame.el (window-system-version): Mark as obsolete.
+
 2012-09-06  Juri Linkov  <juri@jurta.org>
 
         * replace.el (replace-lax-whitespace): New defcustom.
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