+#define SIZEOF_INT8 SIZEOF_CHAR
+#define ALIGNMENT_INT8 ALIGNMENT_CHAR
+#define SIZEOF_WORD8 SIZEOF_UNSIGNED_CHAR
+#define ALIGNMENT_WORD8 ALIGNMENT_UNSIGNED_CHAR
+
+#define SIZEOF_INT16 SIZEOF_SHORT
+#define ALIGNMENT_INT16 ALIGNMENT_SHORT
+#define SIZEOF_WORD16 SIZEOF_UNSIGNED_SHORT
+#define ALIGNMENT_WORD16 ALIGNMENT_UNSIGNED_SHORT
+
+#if SIZEOF_UNSIGNED_INT == 4
+#define SIZEOF_INT32 ALIGNMENT_INT
+#define ALIGNMENT_INT32 SIZEOF_INT
+#define SIZEOF_WORD32 ALIGNMENT_UNSIGNED_INT
+#define ALIGNMENT_WORD32 SIZEOF_UNSIGNED_INT
+#else
+#error GHC untested on this architecture: sizeof(unsigned int) != 4
+#endif
+
+#if HAVE_LONG_LONG && SIZEOF_VOID_P < 8
+/* assume long long is 64 bits */
+#define SIZEOF_INT64 SIZEOF_LONG_LONG
+#define ALIGNMENT_INT64 ALIGNMENT_LONG_LONG
+#define SIZEOF_WORD64 SIZEOF_UNSIGNED_LONG_LONG
+#define ALIGNMENT_WORD64 ALIGNMENT_UNSIGNED_LONG_LONG
+#elif SIZEOF_LONG == 8
+#define SIZEOF_INT64 SIZEOF_LONG
+#define ALIGNMENT_INT64 ALIGNMENT_LONG
+#define SIZEOF_WORD64 SIZEOF_UNSIGNED_LONG
+#define ALIGNMENT_WORD64 ALIGNMENT_UNSIGNED_LONG
+#else
+#error GHC untested on this architecture: sizeof(void *) < 8 and no long longs.
+#endif
+