Version 0.9.4 is available upstream. Please consider updating!
It seems that version 0.9.4 is available upstream, while the latest version in the Gentoo tree is 0.9.3. You think this warning is false? Read more about it here.
FoldMap lists are lists represented by their foldMap function.
FoldMap lists have O(1) cons, snoc and append, just like DLists,
but other operations might have favorable performance
characteristics as well. These wild claims are still completely