Index: uspace/lib/c/include/io/log.h
===================================================================
--- uspace/lib/c/include/io/log.h	(revision b52dd1de1cebdd2d4803f43c0f81f89a172198c2)
+++ uspace/lib/c/include/io/log.h	(revision 1c67b414600c56792079a7c6f1384f7977abcb71)
@@ -50,4 +50,6 @@
 } log_level_t;
 
+extern const char *log_level_str(log_level_t);
+
 extern bool __log_shall_record(log_level_t);
 extern int log_init(const char *, log_level_t);