Re: emacs26, ucs-normalize.el, Symbol’s function definition is void: regexp-opt-charset

[Eli Zaretskii]

> Cc: Eli Zaretskii <address@hidden>, address@hidden, address@hidden
> From: Paul Eggert <address@hidden>
> Date: Wed, 13 Feb 2019 15:04:18 -0800
> 
> diff --git a/lisp/international/ucs-normalize.el 
> b/lisp/international/ucs-normalize.el
> index 9d55470d94..6f1e770c09 100644
> --- a/lisp/international/ucs-normalize.el
> +++ b/lisp/international/ucs-normalize.el
> @@ -109,7 +109,9 @@
>  
>  (defconst ucs-normalize-version "1.2")
>  
> -(eval-when-compile (require 'cl-lib))
> +(eval-when-compile
> +  (require 'cl-lib)
> +  (require 'regexp-opt))

I think it would be better to add the 'require' in the same
eval-when-compile form which calls regexp-opt-charset.