-#define GNUTLS_LOG(level, max, string) if (level <= max) { gnutls_log_function (level, "(Emacs) " string); }
+#define GNUTLS_LOG(level, max, string) do { if (level <= max) { gnutls_log_function (level, "(Emacs) " string); } } while (0)
+
+#define GNUTLS_LOG2(level, max, string, extra) do { if (level <= max) { gnutls_log_function2 (level, "(Emacs) " string, extra); } } while (0)