+/* Log constants to be used with LOG() and LOG_PERROR() macros. */
+#define ERROR LOG_ERROR_LEVEL, __FILE__, __LINE__
+#define WARNING LOG_WARNING_LEVEL, __FILE__, __LINE__
+#define DEBUG1 LOG_DEBUG1_LEVEL, __FILE__, __LINE__
+#define DEBUG2 LOG_DEBUG2_LEVEL, __FILE__, __LINE__
+