bug#14974: 24.3.50; adaptive-wrap 0.3 calls potentially void function easy-menu-add-item

[Stefan Monnier]

> What is a recipe to getting the error, so I can understand what the
> issue is?

1- install adaptive-wrap from ELPA.
2- restart Emacs.

>   '(menu-item "Adaptive Wrap" (lambda ()
>                               (interactive)
>                               (if adaptive-wrap-prefix-mode
>                                   (adaptive-wrap-prefix-mode -1)
>                                 (adaptive-wrap-prefix-mode 1)))

The binding should simply be adaptive-wrap-prefix-mode, shouldn't it?

>             :enable t
>             :visible (and (menu-bar-menu-frame-live-and-visible-p)
>                           (featurep 'adaptive-wrap))

Why not always show it?

>             :button (:toggle . adaptive-wrap-prefix-mode))

adaptive-wrap-prefix-mode only exists after adaptive-wrap has been
loaded, so better use (bound-and-true-p adaptive-wrap-prefix-mode).


        Stefan