-const char * const mi_lttng_loglevel_str_alert;
-const char * const mi_lttng_loglevel_str_crit;
-const char * const mi_lttng_loglevel_str_debug;
-const char * const mi_lttng_loglevel_str_debug_function;
-const char * const mi_lttng_loglevel_str_debug_line;
-const char * const mi_lttng_loglevel_str_debug_module;
-const char * const mi_lttng_loglevel_str_debug_process;
-const char * const mi_lttng_loglevel_str_debug_program;
-const char * const mi_lttng_loglevel_str_debug_system;
-const char * const mi_lttng_loglevel_str_debug_unit;
-const char * const mi_lttng_loglevel_str_emerg;
-const char * const mi_lttng_loglevel_str_err;
-const char * const mi_lttng_loglevel_str_info;
-const char * const mi_lttng_loglevel_str_notice;
-const char * const mi_lttng_loglevel_str_unknown;
-const char * const mi_lttng_loglevel_str_warning;
+extern const char * const mi_lttng_loglevel_str_alert;
+extern const char * const mi_lttng_loglevel_str_crit;
+extern const char * const mi_lttng_loglevel_str_debug;
+extern const char * const mi_lttng_loglevel_str_debug_function;
+extern const char * const mi_lttng_loglevel_str_debug_line;
+extern const char * const mi_lttng_loglevel_str_debug_module;
+extern const char * const mi_lttng_loglevel_str_debug_process;
+extern const char * const mi_lttng_loglevel_str_debug_program;
+extern const char * const mi_lttng_loglevel_str_debug_system;
+extern const char * const mi_lttng_loglevel_str_debug_unit;
+extern const char * const mi_lttng_loglevel_str_emerg;
+extern const char * const mi_lttng_loglevel_str_err;
+extern const char * const mi_lttng_loglevel_str_info;
+extern const char * const mi_lttng_loglevel_str_notice;
+extern const char * const mi_lttng_loglevel_str_unknown;
+extern const char * const mi_lttng_loglevel_str_warning;
+
+/* String related to loglevel JUL */
+extern const char * const mi_lttng_loglevel_str_jul_all;
+extern const char * const mi_lttng_loglevel_str_jul_config;
+extern const char * const mi_lttng_loglevel_str_jul_fine;
+extern const char * const mi_lttng_loglevel_str_jul_finer;
+extern const char * const mi_lttng_loglevel_str_jul_finest;
+extern const char * const mi_lttng_loglevel_str_jul_info;
+extern const char * const mi_lttng_loglevel_str_jul_off;
+extern const char * const mi_lttng_loglevel_str_jul_severe;
+extern const char * const mi_lttng_loglevel_str_jul_warning;
+
+/* String related to loglevel Log4j */
+extern const char * const mi_lttng_loglevel_str_log4j_off;
+extern const char * const mi_lttng_loglevel_str_log4j_fatal;
+extern const char * const mi_lttng_loglevel_str_log4j_error;
+extern const char * const mi_lttng_loglevel_str_log4j_warn;
+extern const char * const mi_lttng_loglevel_str_log4j_info;
+extern const char * const mi_lttng_loglevel_str_log4j_debug;
+extern const char * const mi_lttng_loglevel_str_log4j_trace;
+extern const char * const mi_lttng_loglevel_str_log4j_all;
+
+/* String related to loglevel Python */
+extern const char * const mi_lttng_loglevel_str_python_critical;
+extern const char * const mi_lttng_loglevel_str_python_error;
+extern const char * const mi_lttng_loglevel_str_python_warning;
+extern const char * const mi_lttng_loglevel_str_python_info;
+extern const char * const mi_lttng_loglevel_str_python_debug;
+extern const char * const mi_lttng_loglevel_str_python_notset;