depends  gstreamer   &&
depends  orc &&

optional_depends  libx11                                         \
                  "--enable-x --enable-xvideo --enable-xshm"     \
                  "--disable-x --disable-xvideo --disable-xshm"  \
                  "for X11 video output"                         &&
if is_depends_enabled $SPELL libx11; then
  depends  libxdmcp
fi &&
optional_depends  alsa-lib                       \
                  "--enable-alsa"                \
                  "--disable-alsa"               \
                  "for alsa audio input/output"  &&
optional_depends  cdparanoia              \
                  "--enable-cdparanoia"   \
                  "--disable-cdparanoia"  \
                  "for audio cd input"    &&
optional_depends  gnome-vfs2             \
                  "--enable-gnome_vfs"   \
                  "--disable-gnome_vfs"  \
                  "for gnome-vfs input"  &&
optional_depends  libvisual                            \
                  "--enable-libvisual"                 \
                  "--disable-libvisual"                \
                  "for libvisual audio visualization"  &&
optional_depends  libogg                          \
                  "--enable-ogg"                  \
                  "--disable-ogg"                 \
                  "for OGG file reading/writing"  &&
optional_depends  pango                            \
                  "--enable-pango"                 \
                  "--disable-pango"                \
                  "for subtitle/text renderering"  &&
optional_depends  libvorbis                             \
                  "--enable-vorbis"                     \
                  "--disable-vorbis"                    \
                  "for vorbis audio decoding/encoding"  &&
optional_depends  libtheora                             \
                  "--enable-theora"                     \
                  "--disable-theora"                    \
                  "for theora video decoding/encoding"  &&
optional_depends  gtk-doc                   \
                  "--enable-gtk-doc"        \
                  "--disable-gtk-doc"       \
                  "to build documentation"  &&

optional_depends gobject-introspection \
                 "--enable-introspection=yes" \
                 "--enable-introspection=no" \
                 "to enable introspection for this build" &&

if is_depends_enabled $SPELL gtk-doc; then
  depends  pyxml
fi