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Subject: [bug#34050] Aw: bug#34050: Acknowledgement ([PATCH] gnu: Add libaom
	and activate AV1 support in ffmpeg.)
Resent-Message-ID: <handler.34050.B34050.15474179722417@debbugs.gnu.org>
From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
References: <871s5iemss.fsf@web.de>
	<handler.34050.B.154725368427570.ack@debbugs.gnu.org>
	<trinity-dba92c62-1d87-4068-be18-e5290f2aad7b-1547295189677@3c-app-webde-bs07>
Date: Sun, 13 Jan 2019 23:19:27 +0100
In-Reply-To: <trinity-dba92c62-1d87-4068-be18-e5290f2aad7b-1547295189677@3c-app-webde-bs07>
	(Arne Babenhauserheide's message of "Sat, 12 Jan 2019 13:13:09 +0100")
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To: Arne Babenhauserheide <Arne_Bab@web.de>
Cc: 34050@debbugs.gnu.org

Hello Arne,

"Arne Babenhauserheide" <Arne_Bab@web.de> skribis:

> There=E2=80=99s a problem with my patch: ffmpeg-3.4 inherits the values o=
f ffmpeg but does not support the --enable-aom option.
>
> How can I filter it?

You can use =E2=80=98substitute-keyword-arguments=E2=80=99, along these lin=
es:


   (define ffmpeg-3.4
     (package
       (inherit ffmpeg)
       ;; =E2=80=A6
       (arguments (substitute-keyword-arguments (package-arguments ffmpeg)
                    =E2=80=A6))))

See the other packages that use it as examples.

HTH!

Ludo=E2=80=99.