--- ogre-pagedgeometry/include/RandomTable.h.orig 2018-07-23 09:30:10.545421500 +0300 +++ ogre-pagedgeometry/include/RandomTable.h 2018-07-23 09:34:35.506087400 +0300 @@ -16,6 +16,10 @@ #include // for time #include "MersenneTwister.h" +#ifdef _WIN32 +#define _WIN32_WINNT 0x0600 +#include +#endif // random table class that speeds up PG a bit class RandomTable