optional_depends "zlib" \
                 "--with-zlib-path=/usr" \
                 "--disable-zlib" \
                 "for ziplinks support"

optional_depends "openssl" \
                 "--enable-openssl" \
                 "--disable-openssl" \
                 "for OpenSSL support"

optional_depends "ratbox-services" \
                 "--enable-services" \
                 "" \
                 "for ratbox-services compatibility code"
