[Haskell-cafe] Re: Converting -fglasgow-exts into LANGUAGE pragmas

Hi, Martijn van Steenbergen writes:

Hello café,

I want to replace the -fglasgow-exts in the snippet below by LANGUAGE pragmas. Rank2Types alone doesn't suffice. Which do I need to get the snippet to compile?

Works for me with {-# LANGUAGE Rank2Types, ImpredicativeTypes, LiberalTypeSynonyms #-}