I have used ",trace" before and get what it is supposed to do, but I am not sure what "trace-calls-to-procedure" is supposed to do ...
;; Using Guile 3.0.4
(use-modules (system vm trace))
(define (sqr x)
(* x x))
(trace-calls-to-procedure sqr)
(sqr 3)
;; ... and nothing happens ... is something supposed to happen?
