Using Int in IPv4PktInfo.

Author: kazu-yamamoto

Network/Socket/Posix/Cmsg.hsc

@@ -142,7 +142,7 @@ instance ControlMessage IPv6TClass where
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 -- | Network interface ID and local IPv4 address.
-data IPv4PktInfo = IPv4PktInfo CInt HostAddress deriving (Eq)
+data IPv4PktInfo = IPv4PktInfo Int HostAddress deriving (Eq)
 
 instance Show IPv4PktInfo where
     show (IPv4PktInfo n ha) = "IPv4PktInfo " ++ show n ++ " " ++ show (hostAddressToTuple ha)