Re: Proposal: add ifM and whenM to Control.Monad

[2]: Ironically, the easiest way to fix packages (w/o breaking compat for base<4.7.1) would be to simply make sure the new ifM/whenM functions are not imported, and that the package-local hand-rolled versions of ifM/whenM are continued to be used...

Now that I'm finally confident about the approach we take for base-compat[1] (thanks to João Cristóvão for code and discussion), I want to give it more love in the future. I can add them to Control.Monad.Compat as soon as they are committed upstream and re-export the upstream versions for base > 4.7.0. That way people who are willing to depend on base-compat can just import Control.Monad.Compat. Cheers, Simon [1] http://hackage.haskell.org/package/base-compat