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Diffstat (limited to 'compiler/utils/LazyUniqFM.lhs')
| -rw-r--r-- | compiler/utils/LazyUniqFM.lhs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/utils/LazyUniqFM.lhs b/compiler/utils/LazyUniqFM.lhs index d8132e3cd5..55b438f62d 100644 --- 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 |