DEFVAR_LISP ("window-system-version", &Vwindow_system_version,
doc: /* The version number of the window system in use.
-For X windows, this is 10 or 11. */);
+For X windows, this is 11. */);
DEFVAR_BOOL ("cursor-in-echo-area", &cursor_in_echo_area,
doc: /* Non-nil means put cursor in minibuffer, at end of any message there. */);