depends gawk      &&
depends pkgconfig &&
optional_depends dbus     "-DHAVE_DBUS" "" "DBus configuration support" &&
optional_depends gettext  "" "" "for i18n support" &&
optional_depends libidn   "-DHAVE_IDN" "" "IDN support" &&
optional_depends nettle   "-DHAVE_DNSSEC" "" "crypto support"

.