--- src/lookups/mysql.c.orig 2017-03-05 00:21:35.000000000 +0300 +++ src/lookups/mysql.c 2017-08-15 01:12:26.508519000 +0300 @@ -13,6 +13,7 @@ #include "lf_functions.h" #include /* The system header */ +#include /* Structure and anchor for caching connections. */