Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: ffmpeg-light (user goal)
rejecting: ffmpeg-light-0.11.3 (conflict: requires pkg-config package
libavdevice-any, not found in the pkg-config database)
rejecting: ffmpeg-light-0.11.1, ffmpeg-light-0.11.0, ffmpeg-light-0.10.0,
ffmpeg-light-0.9.0, ffmpeg-light-0.8.2, ffmpeg-light-0.8.1, ffmpeg-light-0.8,
ffmpeg-light-0.7.1.1, ffmpeg-light-0.7.1, ffmpeg-light-0.7, ffmpeg-light-0.6,
ffmpeg-light-0.5, ffmpeg-light-0.4, ffmpeg-light-0.3.1, ffmpeg-light-0.3.0.1,
ffmpeg-light-0.3, ffmpeg-light-0.2.0.1, ffmpeg-light-0.2,
ffmpeg-light-0.1.0.1, ffmpeg-light-0.1.0.0 (constraint from user target
requires ==0.11.3)
Dependency tree exhaustively searched.