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

[Paul Eggert]

On 2/13/19 12:04 PM, Glenn Morris wrote:
> There is a problem, however, as shown by the fact that in a
> --without-x build post-bootstrap, this fails:
>
> ./src/emacs -Q -batch -f batch-byte-compile lisp/international/ucs-normalize.el
>
> Error: Symbol's function definition is void: regexp-opt-charset

Yes, I observe that problem too. I fixed it by installing the attached 
patch into the master branch. It's not clear to me whether it's worth 
backporting this into emacs-26, as the problem occurs only with unusual 
actions after unusual builds.

0001-Add-missing-dependency-to-ucs-normalize.el.patch
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