digest defined ENABLE_DIGEST https defined HAVE_SSL ipv6 defined ENABLE_IPV6 iri defined ENABLE_IRI large-file SIZEOF_OFF_T >= 8 nls defined ENABLE_NLS ntlm defined ENABLE_NTLM opie defined ENABLE_OPIE psl defined HAVE_LIBPSL ssl choice: openssl defined HAVE_LIBSSL || defined HAVE_LIBSSL32 gnutls defined HAVE_LIBGNUTLS