#endif
#if defined (__WXMAC__)
-# if !defined(WORDS_BIGENDIAN) && ( !defined(__MACH__) || ( defined(__BIG_ENDIAN__) && __BIG_ENDIAN__ ) )
+# if ( !defined(__MACH__) || ( defined(__BIG_ENDIAN__) && __BIG_ENDIAN__ ) )
# define WORDS_BIGENDIAN 1
+# else
+# undef WORDS_BIGENDIAN
# endif
#endif