ntSuffixM :: (Maybe Int -> DynFlags -> DynP DynFlags)
              -> OptKind (CmdLineP DynFlags)
optIntSuffixM fn = OptIntSuffix (\mi -> updM (fn mi))

ve
optIntSuffixM :: (Maybe Int -> DynFlags -> DynP DynFlags)
              -> OptKind (CmdLineP DynFlags)
optIntSuffixM fn = OptIntSuffix (\mi -> updM (fn mi))
optIntSuffixM fn = OptIntSuffix (\mi -> updM (fn mi))