+
+/** \brief Makes Libxml2/Libxslt log errors via yaz_log
+ \param prefix prefix to use for log messages (may be 0)
+ \param log_level log level to use for messages
+*/
+YAZ_EXPORT void yaz_log_xml_errors(const char *prefix, int log_level);
+
+/* by default, do not enable the old LOG_-defines */
+#ifndef YAZ_USE_NEW_LOG
+#define YAZ_USE_NEW_LOG 1
+#endif
+
+#if YAZ_USE_NEW_LOG
+
+#else