bug#36664: 27.0.50; definition of string-trim causes warning

[Lars Ingebrigtsen]

Andreas Röhler <andreas.roehler@easy-emacs.de> writes:

> Have that in python-mode.el --as older Emacsen might miss the function--:
>
> ;; subr-x.el might not exist yet
> (unless (functionp 'string-trim)
>   (defsubst string-trim (string &optional trim-left trim-right)
>     "Trim STRING of leading and trailing strings matching TRIM-LEFT
> and TRIM-RIGHT.
>
> TRIM-LEFT and TRIM-RIGHT default to \"[ \\t\\n\\r]+\"."
>     (string-trim-left (string-trim-right string trim-right) trim-left))

I put the following in /tmp/a.el and said `M-x byte-compile-file', and I
got no warning...

(unless (functionp 'string-trim)
 (defsubst string-trim (string &optional trim-left trim-right)
   "Trim STRING of leading and trailing strings matching TRIM-LEFT
and TRIM-RIGHT.

TRIM-LEFT and TRIM-RIGHT default to \"[ \\t\\n\\r]+\"."
   (string-trim-left (string-trim-right string trim-right) trim-left)))

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no