#ifdef SUPPORT_TLS
extern BOOL gnutls_compat_mode; /* Less security, more compatibility */
extern BOOL gnutls_allow_auto_pkcs11; /* Let GnuTLS autoload PKCS11 modules */
-extern uschar *gnutls_require_mac; /* So some can be avoided */
-extern uschar *gnutls_require_kx; /* So some can be avoided */
-extern uschar *gnutls_require_proto; /* So some can be avoided */
extern uschar *openssl_options; /* OpenSSL compatibility options */
extern const pcre *regex_STARTTLS; /* For recognizing STARTTLS settings */
extern uschar *tls_certificate; /* Certificate file */