bug#51523: 29.0.50; gnus-mime-view-part-externally very slow

[Eli Zaretskii]

> Date: Wed, 03 Nov 2021 12:57:27 +0000
> From: Gregory Heytings <gregory@heytings.org>
> cc: 51523@debbugs.gnu.org, Eli Zaretskii <eliz@gnu.org>, larsi@gnus.org
> 
> -  (let* ((fileattr (file-attributes file 'integer))
> +  (let* ((fileattr (file-attributes
> +                    (if (file-name-absolute-p file) file (expand-file-name 
> file))
> +                    'integer))
>        (attr (cons (file-attribute-size fileattr)
>                    (file-attribute-modification-time fileattr)))
>        (sym (concat (symbol-name tag) "@" file))

You don't need to expand the file name you pass to file-attributes: it
does that internally.  What you need is to expand the file name you
pass as the key, i.e. for the symbol you are generating from the file
name.

Thanks.