Hi Maxime,

thank you for investigating!

Maxime Devos <maximedevos@telenet.be> writes:
> scheme@(guile-user)> (null?)
> ;;; <stdin>:1:0: warning: possibly wrong number of arguments to `null?'

This is a correct warning: null? requires an argument (the list to check
for emptyness). The path forward from here is to find out why null? does
not receive an argument.

Best wishes,
Arne
-- 
Unpolitisch sein
heißt politisch sein
ohne es zu merken