depends  SDL
depends  libtool

optional_depends  zlib              \
                  "--enable-zlib"   \
                  "--disable-zlib"  \
                  "compressed pak-file support"

optional_depends  libvorbis          \
                  "--enable-vorbis"  \
                  "--disable-vorbis" \
                  "ogg-vorbis sound file support"

