Bug#739432: FTBFS with libav10

[Moritz Muehlenhoff]

Source: jitsi
Severity: important

Hi,
your package fails to build from source against libav 10 (currently
packaged in experimental). This bug will become release-critical
at some point when the libav10 transition starts.

Migration documentation can be found at
https://wiki.libav.org/Migration/10

Cheers,
        Moritz

       [cc] /home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/ffmpeg/org_jitsi_impl_neomedia_codec_FFmpeg.c:197:21: warning: implicit declaration of function 'avcodec_encode_video' [-Wimplicit-function-declaration]
       [cc]                      avcodec_encode_video(
       [cc]                      ^
       [cc] /home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/ffmpeg/org_jitsi_impl_neomedia_codec_FFmpeg.c: In function 'Java_org_jitsi_impl_neomedia_codec_FFmpeg_avcodec_1find_1decoder':
       [cc] /home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/ffmpeg/org_jitsi_impl_neomedia_codec_FFmpeg.c:213:58: error: conversion to incomplete type
       [cc]      return (jlong) (intptr_t) avcodec_find_decoder((enum CodecID) id);
       [cc]                                                           ^
       [cc] /home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/ffmpeg/org_jitsi_impl_neomedia_codec_FFmpeg.c: In function 'Java_org_jitsi_impl_neomedia_codec_FFmpeg_avcodec_1find_1encoder':
       [cc] /home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/ffmpeg/org_jitsi_impl_neomedia_codec_FFmpeg.c:220:58: error: conversion to incomplete type
       [cc]      return (jlong) (intptr_t) avcodec_find_encoder((enum CodecID) id);
       [cc]                                                           ^
       [cc] /home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/ffmpeg/org_jitsi_impl_neomedia_codec_FFmpeg.c: In function 'Java_org_jitsi_impl_neomedia_codec_FFmpeg_avcodec_1find_1decoder':
       [cc] /home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/ffmpeg/org_jitsi_impl_neomedia_codec_FFmpeg.c:214:1: warning: control reaches end of non-void function [-Wreturn-type]
       [cc]  }
       [cc]  ^
       [cc] /home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/ffmpeg/org_jitsi_impl_neomedia_codec_FFmpeg.c: In function 'Java_org_jitsi_impl_neomedia_codec_FFmpeg_avcodec_1find_1encoder':
       [cc] /home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/ffmpeg/org_jitsi_impl_neomedia_codec_FFmpeg.c:221:1: warning: control reaches end of non-void function [-Wreturn-type]
       [cc]  }
       [cc]  ^

BUILD FAILED
/home/jmm/av10/jitsi-2.4.4997/resources/install/build.xml:3344: The following error occurred while executing this line:
/home/jmm/av10/jitsi-2.4.4997/lib/src/libjitsi/src/native/build.xml:306: gcc failed with return code 1

Total time: 10 minutes 13 seconds
dh_auto_build: ant init deb-src-rebuild returned exit code 1
make[1]: *** [override_dh_auto_build] Error 2
make[1]: Leaving directory `/home/jmm/av10/jitsi-2.4.4997'
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2