[GRASS-user] error building recent grass-svn versions

[Glynn Clements]

Vincent Bain wrote:

> Perhaps I should downgrade (force older version) ffmpeg, to get in the
> first case of the if loop.
> Here's the result of ffmpeg --version on my box:
> 
>         ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg
>         developers
>           built on Feb 22 2013 07:18:58 with gcc 4.4.5
>           configuration: --enable-libdc1394 --prefix=/usr
>         --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared
>         --enable-libmp3lame --enable-gpl --enable-libvorbis
>         --enable-pthreads --enable-libfaac --enable-libxvid
>         --enable-postproc --enable-x11grab --enable-libgsm
>         --enable-libtheora --enable-libopencore-amrnb
>         --enable-libopencore-amrwb --enable-libx264 --enable-libspeex
>         --enable-nonfree --disable-stripping --enable-avfilter
>         --enable-libdirac --disable-decoder=libdirac
>         --enable-libfreetype --enable-libschroedinger
>         --disable-encoder=libschroedinger --enable-version3
>         --enable-libopenjpeg --enable-libvpx --enable-librtmp
>         --extra-libs=-lgcrypt --disable-altivec --disable-armv5te
>         --disable-armv6 --disable-vis
>           libavutil    50. 43. 0 / 50. 43. 0
>           libavcodec   52.123. 0 / 52.123. 0
>           libavformat  52.111. 0 / 52.111. 0
>           libavdevice  52.  5. 0 / 52.  5. 0
>           libavfilter   1. 80. 0 /  1. 80. 0
>           libswscale    0. 14. 1 /  0. 14. 1
>           libpostproc  51.  2. 0 / 51.  2. 0

It gets better; between URL_WRONLY and AVIO_FLAG_WRITE, there was also
AVIO_WRONLY.

https://github.com/FFmpeg/FFmpeg/commit/59d96941f0285a501989d5f2c9b69be0a1393ed5

To grass-dev: given the consistent instability of the ffmpeg API, we
might want to consider generating a warning if --with-ffmpeg is used.

Amongst the few users who actually need that flag, there might be
someone willing to put in the effort to figure out which version
corresponds to which API.

-- 
Glynn Clements <glynn at gclements.plus.com>