-dOUBLE_SIZE = (DOUBLE_SIZE :: Int)
-wORD64_SIZE = (WORD64_SIZE :: Int)
-iNT64_SIZE = (INT64_SIZE :: Int)
-\end{code}
-
-The version of the interface file format we're using. It's propagated
-here by a devious route from ghc/mk/version.mk. See comments
-there for what it means.
-
-\begin{code}
-interfaceFileFormatVersion :: Int
-interfaceFileFormatVersion = HscIfaceFileVersion
+dOUBLE_SIZE = (SIZEOF_DOUBLE `quot` SIZEOF_HSWORD :: Int)
+wORD64_SIZE = (8 `quot` SIZEOF_HSWORD :: Int)
+iNT64_SIZE = wORD64_SIZE