-const char * const config_element_target_vpid = "vpid_target";
-const char * const config_element_target_uid = "uid_target";
-const char * const config_element_target_vuid = "vuid_target";
-const char * const config_element_target_gid = "gid_target";
-const char * const config_element_target_vgid = "vgid_target";
-const char * const config_element_tracker_type = "tracker_type";
+LTTNG_HIDDEN const char * const config_element_target_vpid = "vpid_target";
+LTTNG_HIDDEN const char * const config_element_target_uid = "uid_target";
+LTTNG_HIDDEN const char * const config_element_target_vuid = "vuid_target";
+LTTNG_HIDDEN const char * const config_element_target_gid = "gid_target";
+LTTNG_HIDDEN const char * const config_element_target_vgid = "vgid_target";
+LTTNG_HIDDEN const char * const config_element_tracker_type = "tracker_type";