allowedOptions :: Set String
allowedOptions = S.fromList
    [ "-W"
    , "-w"
    , "-Wall"
    , "-fglasgow-exts"
    , "-fpackage-trust"
    , "-fhelpful-errors"
    , "-F"
    , "-cpp"]
allowedOptions :: Set String
allowedOptions = S.fromList
    [ "-W"
    , "-w"
    , "-Wall"
    , "-fglasgow-exts"
    , "-fpackage-trust"
    , "-fhelpful-errors"
    , "-F"
    , "-cpp"]
allowedOptions = S.fromList
    [ "-W"
    , "-w"
    , "-Wall"
    , "-fglasgow-exts"
    , "-fpackage-trust"
    , "-fhelpful-errors"
    , "-F"
    , "-cpp"]