Is there a standard library solution for this Haskell problem?

Question

I want to use Data.List.groupBy to group a list of tuples based on element equality snd.
I could do this:

groupBy (\l r -> snd l == snd r) listOfTuples

But this seems to me to be too big a template in the comparison function - especially since it can get a lot messier if I make a more complicated comparison. I would like to do something like:

groupBy (comparing snd) listOfTuples

but the signature of the comparison type is equal comparing :: (Ord a) => (b -> a) -> b -> b -> Ordering, so in this example it does not compile.
I could also:

groupBy (\l r -> (comparing snd l r) == EQ) listOfTuples

But this is not better than the first attempt. Is there a standard library solution for this problem before I roll?

Answer 1

groupBy ((==) `on` snd) listOfTuples

, equating = on (==), .

Answer 2

, ?

groupBy ((==EQ) . comparing snd) listOfTuples