+#if SIZEOF_CHAR == 1
+# define ALIGNOF_INT8_T ALIGNOF_CHAR
+# define ALIGNOF_UINT8_T ALIGNOF_CHAR
+#else
+# error SIZEOF_CHAR != 8
+#endif
+#if SIZEOF_SHORT == 2
+# define ALIGNOF_INT16_T ALIGNOF_SHORT
+# define ALIGNOF_UINT16_T ALIGNOF_SHORT
+#else
+# error SIZEOF_SHORT != 16
+#endif
+#if SIZEOF_INT == 4
+# define ALIGNOF_INT32_T ALIGNOF_INT
+# define ALIGNOF_UINT32_T ALIGNOF_INT
+#elif SIZEOF_LONG == 4
+# define ALIGNOF_INT32_T ALIGNOF_LONG
+# define ALIGNOF_UINT32_T ALIGNOF_LONG
+#else
+# error SIZEOF_INT != 32 and SIZEOF_LONG != 32
+#endif
+#if SIZEOF_LONG == 8
+# define ALIGNOF_INT64_T ALIGNOF_LONG
+# define ALIGNOF_UINT64_T ALIGNOF_LONG
+# elif HAVE_LONG_LONG_INT && SIZEOF_LONG_LONG_INT == 8
+# define ALIGNOF_INT64_T ALIGNOF_LONG_LONG
+# define ALIGNOF_UINT64_T ALIGNOF_LONG_LONG
+#else
+# error SIZEOF_LONG != 64 and SIZEOF_LONG_LONG != 64
+#endif
+
+#if HAVE_INT128
+# define SIZEOF_INT128_T SIZEOF___INT128
+# define SIZEOF_UINT128_T SIZEOF_UNSIGNED___INT128
+# define ALIGNOF_INT128_T ALIGNOF___INT128
+# define ALIGNOF_UINT128_T ALIGNOF___INT128
+# define INT128_MAX ((__int128) (UINT128_MAX >> 1))
+# define INT128_MIN (-INT128_MAX-1)
+# define UINT128_MAX ((unsigned __int128) ~ 0)
+typedef __int128 int128_t;
+typedef unsigned __int128 uint128_t;
+#endif