optional_depends  "flac"                                          \
                  "CONFIG_FLAC=y"                                 \
                  "CONFIG_FLAC=n"                                 \
                  "for FLAC (Free Lossless Audio Codec) support"  &&

optional_depends  "libmad"                                   \
                  "CONFIG_MAD=y"                             \
                  "CONFIG_MAD=n"                             \
                  "for MPEG Audio Decoder (libmad) support"  &&

optional_depends  "libmodplug"                        \
                  "CONFIG_MODPLUG=y"                  \
                  "CONFIG_MODPLUG=n"                  \
                  "for MODPLUG (libmodplug) support"  &&

optional_depends  "mikmod"                          \
                  "CONFIG_MIKMOD=y"                 \
                  "CONFIG_MIKMOD=n"                 \
                  "for MIKMOD (libmikmod) support"  &&

optional_depends  "libmpcdec"        \
                  "CONFIG_MPC=y"     \
                  "CONFIG_MPC=n"     \
                  "for MPC support"  &&

optional_depends  "libvorbis"               \
                  "CONFIG_VORBIS=y"         \
                  "CONFIG_VORBIS=n"         \
                  "for Ogg/Vorbis support"  &&

optional_depends  "wavpack"              \
                  "CONFIG_WAVPACK=y"     \
                  "CONFIG_WAVPACK=n"     \
                  "for WAVPACK support"  &&

optional_depends  "MP4V2"         \
                  "CONFIG_MP4=y"     \
                  "CONFIG_MP4=n"     \
                  "for MP4 support"  &&

if is_depends_enabled $SPELL "libmp4v2"  ;  then
  depends  "faad2"
fi  &&

optional_depends  "faad2"                      \
                  "CONFIG_AAC=y"               \
                  "CONFIG_AAC=n"               \
                  "for AAC (libfaad) support"  &&

optional_depends  LIBAVCODEC            \
                  "CONFIG_FFMPEG=y"     \
                  "CONFIG_FFMPEG=n"     \
                  "for FFMPEG support"  &&

optional_depends  "alsa-lib"          \
                  "CONFIG_ALSA=y"     \
                  "CONFIG_ALSA=n"     \
                  "for ALSA support"  &&

optional_depends  "libao"                   \
                  "CONFIG_AO=y"             \
                  "CONFIG_AO=n"             \
                  "for AO (libao) support"  &&

optional_depends  arts                \
                  "CONFIG_ARTS=y"     \
                  "CONFIG_ARTS=n"     \
                  "for ARTS support"
