GNU bug report logs - #57420
29.0.50; Failure configuring Emacs with animated WebP support

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Stefan Kangas <stefankangas <at> gmail.com>
Cc: 57420 <at> debbugs.gnu.org, mardani29 <at> yahoo.es
Subject: bug#57420: 29.0.50; Failure configuring Emacs with animated WebP support
Date: Fri, 26 Aug 2022 08:51:51 +0300

> From: Stefan Kangas <stefankangas <at> gmail.com>
> Date: Thu, 25 Aug 2022 22:50:24 +0000
> 
> Daniel Martín via "Bug reports for GNU Emacs, the Swiss army knife of
> text editors" <bug-gnu-emacs <at> gnu.org> writes:
> 
> > I checked that the built Emacs has WebP support.
> >
> > What do you think? I'd need an build system expert to verify that this
> > is TRT in GNU/Linux, Windows, or when pkg-config is not available.
> 
> FWIW, I tried building with that patch here (Debian GNU/Linux) and the
> build doesn't have webp support.
> 
>     (image-type-available-p 'webp)
>     => nil

Details, please.  Did the configure script decide that WebP is not
available?  If so, please show the relevant portion of config.log.
Also, what does the shell command below produce?

  $ pkg-config --libs "libwebpdemux >= 0.6.0"

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