     ;; Compute full command line.
     (setq args (merlin--map-flatten-to-string
                  "server" command "-protocol" "sexp"
+                 (when dot-merlin '("-dot-merlin" dot-merlin))
                  ;; Is debug mode enabled
                  (when merlin-debug '("-log-file" "-"))
                  ;; If command is repeated, increase verbosity


- `env': list of strings (of the shape VARIABLE=FOO) (see
`process-environment') that will be prepended to the environment of merlin

- `logfile': path to the logfile


  (let ((binary      (merlin-command))
        (flags       (merlin-lookup 'flags merlin-buffer-configuration))
        (process-environment (copy-list process-environment))
        (dot-merlin  (merlin-lookup 'dot-merlin merlin-buffer-configuration))
        ; FIXME use logfile
        (logfile     (or (merlin-lookup 'logfile merlin-buffer-configuration)
                         merlin-logfile))
