Otherwise the GHC pattern match checker takes 35 seconds to declare:
Otherwise the GHC pattern match checker takes 35 seconds to declare:

src\HSE\Bracket.hs:48:5: warning:
    Pattern match checker exceeded (2000000) iterations in
    an equation for `needBracket'. (Use -fmax-pmcheck-iterations=n
    to set the maximun number of iterations to n)

Sad!

ndmitchell/hlint,ndmitchell/hlint