depends  autoconf                             &&
depends  automake                             &&
depends  libtool                              &&
optional_depends  "alsa-lib"                  \
                  "--enable-alsa"             \
                  "--disable-alsa"            \
                  "for alsa sound support"    &&
optional_depends  esound                      \
                  "--enable-esd"              \
                  "--disable-esd"             \
                  "for esound sound support"  &&
optional_depends  sdl                         \
                  "--enable-sdl"              \
                  "--disable-sdl"             \
                  "for sdl sound support"     &&
optional_depends  nas                         \
                  "--enable-nas"              \
                  "--disable-nas"             \
                  "for nas sound support"     &&
optional_depends  smpeg                       \
                  "--enable-mp3"              \
                  "--disable-mp3"             \
                  "for smpeg sound support"   &&
optional_depends  libvorbis                   \
                  "--enable-vorbis"           \
                  "--disable-vorbis"          \
                  "for vorbis sound support"
