depends make &&
depends pkgconfig &&

optional_depends zlib \
                 "--enable-zlib" \
                 "--disable-zlib" \
                 "for gzipped network logging support" &&
optional_depends gnutls \
                 "--enable-gnutls" \
                 "--disable-gnutls" \
                 "TLS encryption for TCP communication"
optional_depends pcre \
                 "--enable-regexp" \
                 "--disable-regexp" \
                 "for regular expressions support" &&
optional_depends librelp \
                 "--enable-relp" \
                 "--disable-relp" \
                 "for RELP protocol support" &&
optional_depends liblogging \
                 "--enable-rfc3195" \
                 "--disable-rfc3195" \
                 "for RFC3195 support" &&
optional_depends libdbi \
                 "--with-libdbi" \
                 "--without-libdbi" \
                 "for database access via libdbi" &&
optional_depends net-snmp \
                 "--enable-snmp" \
                 "--disable-snmp" \
                 "for SNMP support" &&
optional_depends mysql \
                 "--enable-mysql" \
                 "--disable-mysql" \
                 "for MySQL backend support" &&
optional_depends postgresql \
                 "--enable-pgsql" \
                 "--disable-pgsql" \
                 "for PostgreSQL backend support"
