--- include/util.h.orig 2021-11-11 21:35:14.000000000 +0100 +++ include/util.h 2021-11-11 21:36:15.000000000 +0100 @@ -56,6 +56,7 @@ #include #include #include +#include #if !defined(_MSC_VER) || _MSC_VER >= 1800 #include #endif