Fix warnings in CgStackery

diff --git a/compiler/codeGen/CgStackery.lhs b/compiler/codeGen/CgStackery.lhs
index d6d9e5c..bcb59ce 100644 (file)
--- a/compiler/codeGen/CgStackery.lhs
+++ b/compiler/codeGen/CgStackery.lhs
@@ -8,13 +8,6 @@ Stack-twiddling operations, which are pretty low-down and grimy.
 (This is the module that knows all about stack layouts, etc.)
 
 \begin{code}
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
---     http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
--- for details
-
 module CgStackery (
        spRel, getVirtSp, getRealSp, setRealSp,
        setRealAndVirtualSp, getSpRelOffset,
@@ -38,7 +31,6 @@ import CmmUtils
 import CLabel
 import Constants
 import Util
-import FastString
 import OrdList
 import Outputable
 
@@ -125,7 +117,7 @@ mkVirtStkOffsets init_Sp_offset things
     = loop init_Sp_offset [] (reverse things)
   where
     loop offset offs [] = (offset,offs)
-    loop offset offs ((VoidArg,t):things) = loop offset offs things
+    loop offset offs ((VoidArg,_):things) = loop offset offs things
        -- ignore Void arguments
     loop offset offs ((rep,t):things)
        = loop thing_slot ((t,thing_slot):offs) things