Megatest

                       targets))
            ((json)
             (json-write targets))
            (else
             (debug:print-error 0 *default-log-port* "dump output format " (args:get-arg "-dumpmode") " not supported for -list-targets")))
          (set! *didsomething* #t))))

;; cache the runconfigs in $MT_LINKTREE/$MT_TARGET/$MT_RUNNAME/.runconfig
;;
(define (full-runconfigs-read)
;; in the envprocessing branch the below code replaces the further below code
;;  (if (eq? *configstatus* 'fulldata)
;;      *runconfigdat*
;;      (begin
;;	(launch:setup)
;;	*runconfigdat*)))

  (let* ((rundir (if (and (getenv "MT_LINKTREE")(getenv "MT_TARGET")(getenv "MT_RUNNAME"))
		     (conc (getenv "MT_LINKTREE") "/" (getenv "MT_TARGET") "/" (getenv "MT_RUNNAME"))
		     #f))
	 (cfgf   (if rundir (conc rundir "/.runconfig." megatest-version "-" megatest-fossil-hash) #f)))
    (if (and cfgf
	     (common:file-exists? cfgf)
	     (file-write-access? cfgf)
	     (common:use-cache?))
	(configf:read-alist cfgf)
	(let* ((keys   (rmt:get-keys))
	       (target (common:args-get-target))
	       (key-vals (if target (keys:target->keyval keys target) #f))
	       (sections (if target (list "default" target) #f))
	       (data     (begin
			   (setenv "MT_RUN_AREA_HOME" *toppath*)
			   (if key-vals
			       (for-each (lambda (kt)
					   (setenv (car kt) (cadr kt)))
					 key-vals))
			   ;; (read-config (conc *toppath* "/runconfigs.config") #f #t sections: sections))))
                           (runconfig:read (conc *toppath* "/runconfigs.config") target #f))))
	  (if (and rundir ;; have all needed variabless
		   (directory-exists? rundir)
		   (file-write-access? rundir))
	      (begin
                (if (not (common:in-running-test?))
                    (configf:write-alist data cfgf))
		;; force re-read of megatest.config - this resolves circular references between megatest.config
		(launch:setup force-reread: #t)
		;; (launch:cache-config) ;; there are two independent config cache locations, turning this one off for now. MRW.
		)) ;; we can safely cache megatest.config since we have a valid runconfig
	  data))))

(if (args:get-arg "-show-runconfig")
    (let ((tl (launch:setup)))
      (push-directory *toppath*)
      (let ((data (full-runconfigs-read)))
	;; keep this one local
	(cond
	 ((and (args:get-arg "-section")