X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Ftypecheck%2FTcMType.lhs;h=fc434d897fe76032f174243f6069fee172b62f1c;hb=f09bc7d19f2f87bf6540afd3240f3c274b8a4af2;hp=4cd966f2e74e2260a0c5aab944dc8d3aa7c3d291;hpb=467f588c25e6d7825a11eff018a67727b3dea71b;p=ghc-hetmet.git

diff --git a/compiler/typecheck/TcMType.lhs b/compiler/typecheck/TcMType.lhs
index 4cd966f..fc434d8 100644
--- a/compiler/typecheck/TcMType.lhs
+++ b/compiler/typecheck/TcMType.lhs
@@ -88,6 +88,7 @@ import ListSetOps
 import UniqSupply
 import SrcLoc
 import Outputable
+import FastString
 
 import Control.Monad	( when, unless )
 import Data.List	( (\\) )
@@ -506,14 +507,12 @@ isFilledMetaTyVar tv
   | otherwise = return False
 
 writeMetaTyVar :: TcTyVar -> TcType -> TcM ()
-#ifndef DEBUG
-writeMetaTyVar tyvar ty = writeMutVar (metaTvRef tyvar) (Indirect ty)
-#else
+writeMetaTyVar tyvar ty
+  | not debugIsOn = writeMutVar (metaTvRef tyvar) (Indirect ty)
 writeMetaTyVar tyvar ty
   | not (isMetaTyVar tyvar)
   = pprTrace "writeMetaTyVar" (ppr tyvar) $
     return ()
-
   | otherwise
   = ASSERT( isMetaTyVar tyvar )
     -- TOM: It should also work for coercions
@@ -523,7 +522,6 @@ writeMetaTyVar tyvar ty
   where
     k1 = tyVarKind tyvar
     k2 = typeKind ty
-#endif
 \end{code}