This patches fixes a number of byteorder problems in MacOSX specific code.
diff --git a/Lib/plat-mac/applesingle.py b/Lib/plat-mac/applesingle.py
index b035d9e..76bdb06 100644
--- a/Lib/plat-mac/applesingle.py
+++ b/Lib/plat-mac/applesingle.py
@@ -25,7 +25,7 @@
     pass
 
 # File header format: magic, version, unused, number of entries
-AS_HEADER_FORMAT=">ll16sh"
+AS_HEADER_FORMAT=">LL16sh"
 AS_HEADER_LENGTH=26
 # The flag words for AppleSingle
 AS_MAGIC=0x00051600
diff --git a/Lib/test/test_applesingle.py b/Lib/test/test_applesingle.py
index 2a2d60a..d533f1a 100644
--- a/Lib/test/test_applesingle.py
+++ b/Lib/test/test_applesingle.py
@@ -15,8 +15,8 @@
 dataforkdata = 'hello\r\0world\n'
 resourceforkdata = 'goodbye\ncruel\0world\r'
 
-applesingledata = struct.pack("ll16sh", AS_MAGIC, AS_VERSION, "foo", 2) + \
-    struct.pack("llllll", 1, 50, len(dataforkdata),
+applesingledata = struct.pack(">ll16sh", AS_MAGIC, AS_VERSION, "foo", 2) + \
+    struct.pack(">llllll", 1, 50, len(dataforkdata),
         2, 50+len(dataforkdata), len(resourceforkdata)) + \
     dataforkdata + \
     resourceforkdata