> On 27 Aug 2018, at 22:12, Mark H Weaver <[email protected]> wrote: > > More generally, even for people only interested in supporting Guile, if > they would like their libraries to be usable from Elisp code on Guile, > which may become important some day if Guile-Emacs matures, then it's > problematic to use #nil for anything that needs to be distinguished from > '() or #f.
Maybe you need an addition: an empty value.
