-- But NB it's implied by GADTs etc
-- SLPJ September 2010
: Opt_NondecreasingIndentation -- This has been on by default for some time
- : Opt_RelaxedLayout -- This has been on by default for some time
: languageExtensions (Just Haskell2010)
languageExtensions (Just Haskell98)
, (Opt_LiberalTypeSynonyms, turnOn, Opt_ExplicitForAll)
, (Opt_ExistentialQuantification, turnOn, Opt_ExplicitForAll)
, (Opt_PolymorphicComponents, turnOn, Opt_ExplicitForAll)
+ , (Opt_FlexibleInstances, turnOn, Opt_TypeSynonymInstances)
, (Opt_RebindableSyntax, turnOff, Opt_ImplicitPrelude) -- NB: turn off!