extern int tls_write(void *, const uschar *, size_t, BOOL);
extern uschar *tls_validate_require_cipher(void);
extern void tls_version_report(FILE *);
-# ifndef USE_GNUTLS
+# ifdef USE_OPENSSL
extern BOOL tls_openssl_options_parse(uschar *, long *);
# endif
extern uschar * tls_field_from_dn(uschar *, const uschar *);