(blink-cursor-mode): Use `custom-initialize-safe-default' and simplify

:init-value.

diff --git a/lisp/frame.el b/lisp/frame.el
index 088a7a9b622d8fc9278aef9092a8c005c1d15622..5496c857af0ca0949d0fc5738904166ad6a07956 100644 (file)
--- a/lisp/frame.el
+++ b/lisp/frame.el
@@ -1256,10 +1256,6 @@ The function `blink-cursor-start' is called when the timer fires.")
 This timer calls `blink-cursor-timer-function' every
 `blink-cursor-interval' seconds.")
 
-;; We do not know the standard _evaluated_ value yet, because the standard
-;; expression uses values that are not yet set.  The correct evaluated
-;; standard value will be installed in startup.el using exactly the same
-;; expression as in the defcustom.
 (define-minor-mode blink-cursor-mode
   "Toggle blinking cursor mode.
 With a numeric argument, turn blinking cursor mode on iff ARG is positive.
@@ -1270,9 +1266,10 @@ Note that this command is effective only when Emacs
 displays through a window system, because then Emacs does its own
 cursor display.  On a text-only terminal, this is not implemented."
   :init-value (not (or noninteractive
-                      (if (boundp 'no-blinking-cursor) no-blinking-cursor)
+                      no-blinking-cursor
                       (eq system-type 'ms-dos)
                       (not (memq window-system '(x w32)))))
+  :initialize 'custom-initialize-safe-default
   :group 'cursor
   :global t
   (if blink-cursor-idle-timer (cancel-timer blink-cursor-idle-timer))