Re: [Gimp-developer] webp format?

[Ben <draekko software gmail com>]

> Message: 1
> Date: Tue, 23 Aug 2016 15:26:57 -0400
> From: Elle Stone <ellestone ninedegreesbelow com>
> To: gimp-developer-list gnome org
> Subject: Re: [Gimp-developer] webp format?
> Message-ID:
>         <2b28be7d-55c0-e4c4-1519-d1bef39b4734 ninedegreesbelow com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> Ben, thanks! I finally got GIMP to compile with webp support.
You're welcome and good :)
> Originally I had installed libwebp in /usr/local, without the
> above-listed options. But even after enabling the above-listed options
> and reinstalling, GIMP wouldn't compile - the build would fail when it
> got to the webp-save code, with the following terminal output:
>
> file-webp-save.o: In function `WebPAnimEncoderOptionsInit':
> /usr/local/include/webp/mux.h:454: undefined reference to
> `WebPAnimEncoderOptionsInitInternal'
> file-webp-save.o: In function `save_animation':
> build/gimp/plug-ins/file-webp/file-webp-save.c:494: undefined reference
> to `WebPAnimEncoderAdd'
> build/gimp/plug-ins/file-webp/file-webp-save.c:512: undefined reference
> to `WebPAnimEncoderAdd'
> build/gimp/plug-ins/file-webp/file-webp-save.c:514: undefined reference
> to `WebPAnimEncoderAssemble'
> build/gimp/plug-ins/file-webp/file-webp-save.c:551: undefined reference
> to `WebPAnimEncoderDelete'
> build/gimp/plug-ins/file-webp/file-webp-save.c:516: undefined reference
> to `WebPAnimEncoderGetError'
> file-webp-save.o: In function `WebPAnimEncoderNew':
> /usr/local/include/webp/mux.h:471: undefined reference to
> `WebPAnimEncoderNewInternal'
>
> Uninstalling libwebp from /usr/local and installing it directly in the
> prefix in which GIMP is built allowed the build to finish, and now GIMP
> indeed can open and save webp files.
>
> Does anyone know why GIMP couldn't find WebPAnimEncoder when libwebp was
> installed in /usr/local? Maybe I needed to tell GIMP to include
> /usr/local/lib or some such? Maybe something like this?
> export PKG_CONFIG_PATH="$PKG_CONFIG_PATH:/usr/local/lib/pkgconfig"
I never noticed because my .bashrc includes custom paths set for
PATH, PKG_CONFIG_PATH and LD_LIBRARY_PATH not sure why GIMP
didn't pick them up. I usually add the custom path prior to appending
the variable back on itself though not that it should make much of
a difference in most instances unless it was finding another older
version prior in the search path.

What i usually do:

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:$PKG_CONFIG_PATH

Ben