Index: src/lzfse_main.c --- src/lzfse_main.c.orig 2017-02-12 17:39:36.000000000 +0100 +++ src/lzfse_main.c 2017-02-12 17:41:20.851733000 +0100 @@ -45,6 +45,10 @@ #include #include #include +#ifdef __FreeBSD__ +#define __XSI_VISIBLE 1 +#endif +#include #if defined(_MSC_VER) # include