(defcustom mouse-sel-mode nil
"Toggle Mouse Sel mode.
When Mouse Sel mode is enabled, mouse selection is enhanced in various ways.
-You must modify via \\[customize] for this variable to have an effect."
+Setting this variable directly does not take effect;
+use either \\[customize] or the function `mouse-sel-mode'."
:set (lambda (symbol value)
(mouse-sel-mode (or value 0)))
:initialize 'custom-initialize-default