+`BT_LOGV_ERRNO("initial message", "format string", ...)`::
+ `errno` string verbose logging statement.
+
+`BT_LOGD_ERRNO("initial message", "format string", ...)`::
+ `errno` string debug logging statement.
+
+`BT_LOGI_ERRNO("initial message", "format string", ...)`::
+ `errno` string info logging statement.
+
+`BT_LOGW_ERRNO("initial message", "format string", ...)`::
+ `errno` string warning logging statement.
+
+`BT_LOGE_ERRNO("initial message", "format string", ...)`::
+ `errno` string error logging statement.
+
+`BT_LOGF_ERRNO("initial message", "format string", ...)`::
+ `errno` string fatal logging statement.
+