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Re: obsolete functions found during the build process

From: Stefan Monnier
Subject: Re: obsolete functions found during the build process
Date: Sun, 13 Aug 2017 17:14:09 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.0.50 (gnu/linux)

> In general, replace the obsolete functions as the warning suggests.
> In some cases, the use of the obsolete function is justified, though.

AFAICT, there are indeed cases where using decode-coding-string instead
of string-to-multibyte is not really an option, but that means
"obsolete" is not really a good description.

Using with-no-warnings to mask obsolescence warnings is OK when we know
that the code is only kept for backward compatibility, but when there is
no good replacement, it's not a good solution.

So we should strive to provide valid alternatives for every use of
string-to-multibyte (or de-obsolete it, tho it's not my favorite solution).


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