optional_depends zlib              \
                 "--enable-zlib"   \
                 "--disable-zlib"  \
                 "for zlib compression support"

optional_depends mysql              \
                 "--enable-mysql"   \
                 "--disable-mysql"  \
                 "for MySQL support"

optional_depends postgresql         \
                 "--enable-pgsql"   \
                 "--disable-pgsql"  \
                 "for PostgreSQL support"

optional_depends libdbi              \
                 "--enable-libdbi"   \
                 "--disable-libdbi"  \
                 "for libdbi database support"

optional_depends heimdal                  \
                 "--enable-gssapi-krb5"   \
                 "--disable-gssapi-krb5"  \
                 "for kerberos support"

optional_depends net-snmp          \
                 "--enable-snmp"   \
                 "--disable-snmp"  \
                 "for SNMP support"

optional_depends librelp           \
                 "--enable-relp"   \
                 "--disable-relp"  \
                 "for reliable logging (RELP) support"

optional_depends gnutls             \
                 "--enable-gnutls"  \
                 "--disable-gnutls" \
                 "for GnuTLS support"

optional_depends logrotate "" "" "for log rotation support"
optional_depends systemd   "" "" "for systemd support"
