-const char * const mi_lttng_xmlns = "xmlns";
-const char * const mi_lttng_xmlns_xsi = "xmlns:xsi";
-const char * const mi_lttng_w3_schema_uri = "http://www.w3.org/2001/XMLSchema-instance";
-const char * const mi_lttng_schema_location = "xsi:schemaLocation";
-const char * const mi_lttng_schema_location_uri =
+LTTNG_HIDDEN const char * const mi_lttng_xmlns = "xmlns";
+LTTNG_HIDDEN const char * const mi_lttng_xmlns_xsi = "xmlns:xsi";
+LTTNG_HIDDEN const char * const mi_lttng_w3_schema_uri = "http://www.w3.org/2001/XMLSchema-instance";
+LTTNG_HIDDEN const char * const mi_lttng_schema_location = "xsi:schemaLocation";
+LTTNG_HIDDEN const char * const mi_lttng_schema_location_uri =