diff options
Diffstat (limited to 'compiler/utils/IOEnv.hs')
| -rw-r--r-- | compiler/utils/IOEnv.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/utils/IOEnv.hs b/compiler/utils/IOEnv.hs index 6885bbd127..1db15537c7 100644 --- a/compiler/utils/IOEnv.hs +++ b/compiler/utils/IOEnv.hs @@ -1,3 +1,5 @@ +{-# LANGUAGE DeriveDataTypeable, UndecidableInstances #-} + -- -- (c) The University of Glasgow 2002-2006 -- @@ -7,7 +9,6 @@ -- as its in the IO monad, mutable references can be used -- for updating state. -- -{-# LANGUAGE UndecidableInstances #-} module IOEnv ( IOEnv, -- Instance of Monad |