-#if defined(__GLASGOW_HASKELL__)
-#define FAST_INT Int#
-#define ILIT(x) (x#)
-#define IBOX(x) (I# (x))
-#define _ADD_ `plusInt#`
-#define _SUB_ `minusInt#`
-#define _MUL_ `timesInt#`
-#define _DIV_ `divInt#`
-#define _QUOT_ `quotInt#`
-#define _NEG_ negateInt#
-#define _EQ_ `eqInt#`
-#define _LT_ `ltInt#`
-#define _LE_ `leInt#`
-#define _GE_ `geInt#`
-#define _GT_ `gtInt#`
-
-#define FAST_BOOL Int#
-#define _TRUE_ 1#
-#define _FALSE_ 0#
-#define _IS_TRUE_(x) ((x) `eqInt#` 1#)
-
-#else {- ! __GLASGOW_HASKELL__ -}
-
-#define FAST_INT Int
-#define ILIT(x) (x)
-#define IBOX(x) (x)
-#define _ADD_ +
-#define _SUB_ -
-#define _MUL_ *
-#define _DIV_ `div`
-#define _QUOT_ `quot`
-#define _NEG_ -
-#define _EQ_ ==
-#define _LT_ <
-#define _LE_ <=
-#define _GE_ >=
-#define _GT_ >
-
-#define FAST_BOOL Bool
-#define _TRUE_ True
-#define _FALSE_ False
-#define _IS_TRUE_(x) (x)
-
-#endif {- ! __GLASGOW_HASKELL__ -}
-
-#if __GLASGOW_HASKELL__ >= 23 && __GLASGOW_HASKELL__ < 200
-#define USE_FAST_STRINGS 1
-#define FAST_STRING _PackedString
-#define SLIT(x) (_packCString (A# x#))
-#define _CMP_STRING_ cmpPString
-#define _NULL_ _nullPS
-#define _NIL_ _nilPS
-#define _CONS_ _consPS
-#define _HEAD_ _headPS
-#define _TAIL_ _tailPS
-#define _LENGTH_ _lengthPS
-#define _PK_ _packString
-#define _UNPK_ _unpackPS
-#define _SUBSTR_ _substrPS
-#define _APPEND_ `_appendPS`
-#define _CONCAT_ _concatPS
+#ifdef DEBUG
+#define ASSERT(e) if (not (e)) then (assertPanic __FILE__ __LINE__) else
+#define ASSERT2(e,msg) if (not (e)) then (assertPprPanic __FILE__ __LINE__ (msg)) else
+#define WARN( e, msg ) (warnPprTrace (e) __FILE__ __LINE__ (msg))
+#define ASSERTM(mbool) do { bool <- mbool; ASSERT(bool) return () }
+#define ASSERTM2(mbool,msg) do { bool <- mbool; ASSERT2(bool,msg) return () }