Index: src/OFMacros.h
==================================================================
--- src/OFMacros.h
+++ src/OFMacros.h
@@ -23,10 +23,21 @@
 #else
 #define OF_INLINE inline
 #define OF_LIKELY(cond) cond
 #define OF_UNLIKELY(cond) cond
 #endif
+
+/* Required to build universal binaries on OS X */
+#if __BIG_ENDIAN__ || __LITTLE_ENDIAN__
+#if __BIG_ENDIAN__ && __LITTLE_ENDIAN__
+#error __BIG_ENDIAN__ and __LITTLE_ENDIAN__ defined!
+#endif
+#undef OF_BIG_ENDIAN
+#if __BIG_ENDIAN__
+#define OF_BIG_ENDIAN
+#endif
+#endif
 
 #ifdef __GNUC__
 #if defined(__amd64__) || defined(__x86_64__)
 #define OF_AMD64_ASM
 #elif defined(__i386__)