CHICKEN 5.2.0 in Nixpkgs and Guix

Hi there, one more. CHICKEN 5.2.0 is now also available via Nixpkgs (unstable channel) and Guix (default channel). Cheers, Evan signature.asc Description: PGP signature

Re: Behavior of #!optional

Hi Théo, I don't know whether there are any firm guarantees about that behaviour, but functionally it's safe to rely on, yes. That idiom you mentioned is pretty handy, I use it myself sometimes. Under the hood, #!optional arguments are expanded in a let*-style binding form (as opposed to a "norma