Re: "Attempt to modify read-only object" error with set-frame-configuration

[martin rudalics]

> Try this:
>
> (let* ((cfg (current-frame-configuration))
>        (atr (cdadr cfg)))
>   (setcar atr (assq-delete-all 'horizontal-scroll-bars (car atr)))
>   (setcar atr (assq-delete-all 'visibility (car atr)))
>   (set-frame-configuration cfg))

Splendid!  Where can we fix this (at least temporarily)?  In
x_set_frame_parameters?