More commandline flag improvements

[ghc-hetmet.git] / compiler / utils / LazyUniqFM.lhs

diff --git a/compiler/utils/LazyUniqFM.lhs b/compiler/utils/LazyUniqFM.lhs
index d8132e3..55b438f 100644 (file)
--- a/compiler/utils/LazyUniqFM.lhs
+++ b/compiler/utils/LazyUniqFM.lhs
@@ -11,7 +11,8 @@ Basically, the things need to be in class @Uniquable@, and we use the
 @getUnique@ method to grab their @Uniques@.
 
 \begin{code}
-{-# OPTIONS -Wall -fno-warn-name-shadowing -Werror -fallow-undecidable-instances #-}
+{-# OPTIONS -Wall -fno-warn-name-shadowing -Werror #-}
+{-# LANGUAGE UndecidableInstances #-}
 module LazyUniqFM (
        UniqFM,         -- abstract type