Hi!

Using the attached patch and the configuration below, rottlog
actually rotates /var/log/messages daily.

Greetings,
Jan

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(use-package-modules admin)
(use-service-modules mcron)

(define rottlog-job
  #~(job '(next-hour '(5))
         (lambda ()
           (system (string-append  #$rottlog "/sbin/rottlog")))))

(define updatedb-job
  ;; Run 'updatedb' at 3AM every day.  Here we write the
  ;; job's action as a Scheme procedure.
  #~(job '(next-hour '(3))
         (lambda ()
           (execl (string-append #$findutils "/bin/updatedb")
                  "updatedb"
                  "--prunepaths=/tmp /var/tmp /gnu/store"))))

...

(operating-system
     ...
    (services
      ...

      (mcron-service (list rottlog-job
                           updatedb-job))
     ...
))
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