if [[ "$PULSE_DB" == 'gdbm' ]]; then
   depends gdbm
elif [[ "$PULSE_DB" == 'tdb' ]]; then
   depends tdb
else
   message "using configuration database $PULSE_DB"
fi &&

# gettext is needed in order to build the desktop files
depends gettext   &&
#optional_depends gettext                        \
#                 "--enable-nls"                 \
#                 "--disable-nls"                \
#                 "for Native Language Support"  &&
optional_depends libx11                           \
                 "--enable-x11"                   \
                 "--disable-x11"                  \
                 "Enable X11 support?"            &&

if is_depends_enabled $SPELL libx11; then
  depends  libice   &&
  depends  libsm    &&
  depends  libxext  &&
  depends  libxtst
fi  &&
optional_depends alsa-lib                         \
                 "--enable-alsa"                  \
                 "--disable-alsa"                 \
                 "Enable Advanced Linux Sound Architecture support? (RECOMMENDED)"  &&
optional_depends glib2                            \
                 "--enable-glib2"                 \
                 "--disable-glib2"                \
                 "Enable glib2 support?"          &&
optional_depends gtk+3 \
                 "--enable-gtk3" \
                 "--disable-gtk3" \
                 "for GTK+3 support" &&

if is_depends_enabled $SPELL gtk+3; then
  depends  libxxf86vm
fi  &&

optional_depends gconf2 \
                 "--enable-gconf" \
                 "--disable-gconf" \
                 "for gconf support" &&
optional_depends avahi                                \
                 "--enable-avahi"                     \
                 "--disable-avahi"                    \
                 "for ZerConf configuration support"  &&
optional_depends JACK-DRIVER                      \
                 "--enable-jack"                  \
                 "--disable-jack"                 \
                 "for low-latency sound server support?"  &&
optional_depends libasyncns                       \
                 "--enable-asyncns"               \
                 "--disable-asyncns"              \
                 "for asynchronous service queries?"  &&
optional_depends tcp_wrappers                     \
                 "--enable-tcpwrap"               \
                 "--disable-tcpwrap"              \
                 "Enable TCP network filtering?"  &&
optional_depends lirc                             \
                 "--enable-lirc"                  \
                 "--disable-lirc"                 \
                 "Enable infra-red remote control support?"  &&
optional_depends DEVICE-MANAGER                \
                 "--enable-udev --disable-hal-compat" \
                 "--disable-udev"              \
                 "for device hotplug support"  &&
optional_depends bluez5 \
                 "--enable-bluez5" \
                 "--disable-bluez5" \
                 "for BlueZ-5 support" &&
optional_depends bluez \
                 "--enable-bluez4" \
                 "--disable-bluez4" \
                 "for BlueZ-4 support" &&

if is_depends_enabled $SPELL bluez ||
   is_depends_enabled $SPELL bluez5; then
  depends sbc &&
  depends dbus "--enable-dbus"
else
  optional_depends dbus                        \
                   "--enable-dbus"             \
                   "--disable-dbus"            \
                   "for D-BUS system messaging" 
fi &&

optional_depends SSL \
                 "--enable-openssl" \
                 "--disable-openssl" \
                 "for SSL support (Airtunes/RAOP)" &&
optional_depends doxygen \
                 "--enable-manpages" \
                 "--disable-manpages" \
                 "for manpage generation" &&
optional_depends libcap                           \
                 "--with-caps"                    \
                 "--without-caps"                 \
                 "Enable POSIX capability support?"          &&

optional_depends fftw \
                '--with-fftw' \
                '--without-fftw' \
                'build equalizer' &&

optional_depends orc \
                 '--enable-orc' \
                 '--disable-orc' \
                 'improve code' &&
#optional_depends policykit                        \
#                 "--enable-polkit"                \
#                 "--disable-polkit"               \
#                 "for PolicyKit authentication support"  &&

optional_depends speexdsp \
                 "--with-speex" \
                 "--without-speex" \
                 "for resampling support" &&

optional_depends webrtc-audio-processing \
                 "--enable-webrtc-aec" \
                 "--disable-webrtc-aec" \
                 "for WebRTC-based echo canceller" &&

if is_depends_enabled ${SPELL} webrtc-audio-processing; then
  depends -sub CXX gcc
fi &&

suggest_depends  pasystray     ''  ''  'for Preferences tool & System Tray' &&
suggest_depends  paprefs       ''  ''  'for Preferences tool'     &&
suggest_depends  pavucontrol   ''  ''  'for Volume Control tool'  &&
suggest_depends  pavumeter     ''  ''  'for Volume Meter tool'    &&
suggest_depends  paman         ''  ''  'for Manager tool'