From d82a80639dace755b6e1649dba857cc4987fae7a Mon Sep 17 00:00:00 2001
From: Douglas Warren <dnw3@kent.ac.uk>
Date: Wed, 14 Nov 2007 16:24:03 +0000
Subject: [PATCH] Removed the dependency on Control.Monad.State.Class package,
 since that isn't in the older Debian versions

---
 common/Utils.hs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/common/Utils.hs b/common/Utils.hs
index 723226c..0255cbb 100644
--- a/common/Utils.hs
+++ b/common/Utils.hs
@@ -21,7 +21,6 @@ with this program.  If not, see <http://www.gnu.org/licenses/>.
 module Utils where
 
 import Control.Monad.State
-import Control.Monad.State.Class
 import Data.Ord
 import System.IO
 import System.IO.Error
@@ -142,7 +141,7 @@ powerset :: [a] -> [[a]]
 powerset = filterM (const [True, False])
 
 -- | Alters a monadic state and returns the old value (from before the alteration).
-modify' :: MonadState s m => (s -> s) -> m s
+modify' :: Monad m => (s -> s) -> StateT s m s
 modify' f = do x <- get
                put (f x)
                return x