How to [temporarily] suppress “defined but not used” warnings?

Question

When I prototype Haskell programs, I always get hundreds of warnings like this (not joking):

/Users/bob/SourceCode/course/is/expriment/LiftedSpine2.hs:70:15:
    W         


        

Answer 1

I use a workaround for this:

I compile without warnings, but then I use HLint tool to display warnings for me. HLint has facilities to turn warnings separately.