--- a/physfs_byteorder.c	Sat Oct 12 00:23:52 2002 +0000
+++ b/physfs_byteorder.c	Mon Oct 14 04:58:31 2002 +0000
@@ -28,6 +28,7 @@
      defined(__arm__) || \
     (defined(__mips__) && defined(__MIPSEL__)) || \
      defined(__SYMBIAN32__) || \
+     defined(__x86_64__) || \
      defined(__LITTLE_ENDIAN__)
 #define PHYSFS_BYTEORDER    PHYSFS_LIL_ENDIAN
 #else