depends  speex     &&
depends  libosip2  &&
optional_depends ilbc-rfc3951 \
                 "--with-ilbc" \
                 "--without-ilbc" \
                 "internet Low Bitrate Codec" &&
optional_depends alsa-lib \
                 "--enable-alsa" \
                 "--disable-alsa" \
                 "alsa sound support"          &&
optional_depends gtk+2 \
                 "--enable-gnome_ui" \
                 "--disable-gnome_ui" \
                 "gnome2-uisupport"            &&
optional_depends glib2 \
                 "--enable-glib" \
                 "--disable-glib" \
                 "glib support"                &&
optional_depends gtk-doc \
                 "enable_gtk_doc=yes" \
                 "enable_gtk_doc=no" \
                 "build developer docs"
