Maxime Devos skribis: > On 30-08-2022 09:33, Ludovic Courtès wrote: > >> So are you suggesting replacing: >> >> (defined? 'make-inetd-constructor) >> >> by something like: >> >> (version> >> or is it something different that you have in mind? >> >> I’m not sure how this could improve the user experience, unless by >> “user” you mean the person writing the service? > > (defined? '...) does not work in all contexts -- it works on the > top-level, but not always inside a procedure, as it tests if the thing > is defined in (current-module), and not whether it is defined in the > module that calls (defined? '...). Right, but that’s a bit of a theoretical concern in my view. Alternatively, one could write: (module-defined? (resolve-interface '(shepherd service)) 'make-inetd-constructor) Thanks, Ludo’.