| Opt_GeneralizedNewtypeDeriving
| Opt_RecursiveDo
| Opt_PatternGuards
+ | Opt_Rank2Types
+ | Opt_RankNTypes
-- optimisation opts
| Opt_Strictness
( "FFI", Opt_FFI ), -- ...and also `-fffi'
( "ForeignFunctionInterface", Opt_FFI ),
+ ( "Rank2Types", Opt_Rank2Types ),
+ ( "RankNTypes", Opt_RankNTypes ),
( "RecursiveDo", Opt_RecursiveDo ),
( "Arrows", Opt_Arrows ), -- arrow syntax
( "Parr", Opt_PArr ),
, Opt_FunctionalDependencies
, Opt_MagicHash
, Opt_PatternGuards
+ , Opt_RankNTypes
, Opt_RecursiveDo
, Opt_ParallelListComp
, Opt_EmptyDataDecls