--- src/cpp-ethereum/ethash/lib/ethash/endianness.hpp.orig	2018-12-14 16:19:59 UTC
+++ src/cpp-ethereum/ethash/lib/ethash/endianness.hpp
@@ -24,7 +24,7 @@
 #define __BIG_ENDIAN 4321
 #define __BYTE_ORDER __LITTLE_ENDIAN
 
-#elif __APPLE__
+#elif __APPLE__ || __FreeBSD__
 
 #include <machine/endian.h>