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[ghc-hetmet.git] / compiler / HsVersions.h

diff --git a/compiler/HsVersions.h b/compiler/HsVersions.h
index 68884c0..464bf82 100644 (file)
--- a/compiler/HsVersions.h
+++ b/compiler/HsVersions.h
@@ -22,32 +22,37 @@ you will screw up the layout where they are used in case expressions!
  * settings for the target plat instead). */
 #include "../includes/ghcautoconf.h"
 
+#if __GLASGOW_HASKELL__ >= 602
+#define SYSTEM_IO_ERROR System.IO.Error
+#else
+#define SYSTEM_IO_ERROR System.IO
+#endif
+
 #ifdef __GLASGOW_HASKELL__
 #define GLOBAL_VAR(name,value,ty)  \
 name = Util.global (value) :: IORef (ty); \
 {-# NOINLINE name #-}
 #endif
 
-#if __GLASGOW_HASKELL__ >= 620
-#define UNBOX_FIELD !!
-#else
-#define UNBOX_FIELD !
-#endif
-
 #define COMMA ,
 
 #ifdef DEBUG
+#define debugIsOn True
 #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 () }
 #else
-#define ASSERT(e)      if False then error "ASSERT"  else
-#define ASSERT2(e,msg) if False then error "ASSERT2" else
-#define ASSERTM(e)
-#define ASSERTM2(e,msg)
-#define WARN(e,msg)    if False then error "WARN"    else
+#define debugIsOn False
+-- We have to actually use all the variables we are given or we may get
+-- unused variable warnings when DEBUG is off.
+#define ASSERT(e)      if False && (not (e)) then panic "ASSERT" else
+#define ASSERT2(e,msg) if False && (not (e)) then pprPanic "ASSERT2" (msg) else
+#define ASSERTM(e)       do { let { _mbool = (e) } }
+-- Here we deliberately don't use when as Control.Monad might not be imported
+#define ASSERTM2(e,msg)  do { let { _mbool = (e) }; if False then panic "ASSERTM2" else return () }
+#define WARN(e,msg)    if False && (e) then pprPanic "WARN" (msg) else
 #endif
 
 -- This #ifndef lets us switch off the "import FastString"
@@ -61,7 +66,7 @@ import qualified FastString as FS
 #define FSLIT(x) (FS.mkFastString# (x#))
 
 -- Useful for declaring arguments to be strict
-#define STRICT1(f) f a b c | a `seq` False = undefined
+#define STRICT1(f) f a | a `seq` False = undefined
 #define STRICT2(f) f a b | a `seq` b `seq` False = undefined
 #define STRICT3(f) f a b c | a `seq` b `seq` c `seq` False = undefined
 #define STRICT4(f) f a b c d | a `seq` b `seq` c `seq` d `seq` False = undefined