+void zebra_timing_start(zebra_timing_t t);
+YAZ_EXPORT
+void zebra_timing_stop(zebra_timing_t t);
+YAZ_EXPORT
+double zebra_timing_get_real(zebra_timing_t t);
+YAZ_EXPORT
+double zebra_timing_get_user(zebra_timing_t t);
+YAZ_EXPORT
+double zebra_timing_get_sys(zebra_timing_t t);
+YAZ_EXPORT
+void zebra_timing_destroy(zebra_timing_t *tp);
+
+YAZ_EXPORT zint atozint(const char *src);