configure, libavformat/Makefile: Fix webm_chunk dependencies

The webm_chunk muxer requires the WebM muxer, yet it does not directly
require anything from libavformat/matroska.c (it does not even include
the corresponding header). So remove the dependency from the Makefile
and add a _select to configure.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/configure b/configure
index 4d4c429be9..fdd9a7b79b 100755
--- a/configure
+++ b/configure
@@ -3336,6 +3336,7 @@ w64_demuxer_select="wav_demuxer"
 w64_muxer_select="wav_muxer"
 wav_demuxer_select="riffdec"
 wav_muxer_select="riffenc"
+webm_chunk_muxer_select="webm_muxer"
 webm_muxer_select="iso_media riffenc"
 webm_dash_manifest_demuxer_select="matroska_demuxer"
 wtv_demuxer_select="mpegts_demuxer riffdec"