Megatest

     ((string? proc)(system proc))
     (proc          (proc)))
    (hash-table-for-each
     vars
     (lambda (var val)
       (setenv var val)))
    vars))

(define (common:propogate-mt-vars-to-subrun proc propogate-vars)
  (let ((vars      (make-hash-table))
        (var-patt  "^MT_.*"))
    (for-each
     (lambda (vardat) ;; each env var
       ;(for-each
      ;(lambda (var-patt)
	  (if (string-match var-patt (car vardat))
	      (let ((var (car vardat))
		    (val (cdr vardat)))
		(hash-table-set! vars var val)
                 (if (member var propogate-vars)
                  (begin
                  (print var "  " (string-substitute "MT_" "PARENT_" var))
                  (setenv (string-substitute "MT_" "PARENT_"  var) val)))
		(unsetenv var))))
;	var-patts))
     (get-environment-variables))
    (cond
     ((string? proc)(system proc))
     (proc          (proc)))
    (hash-table-for-each
     vars
     (lambda (var val)
         (if (member var propogate-vars)
         (unsetenv (string-substitute "MT_" "PARENT_" var)))  
       (setenv var val)))
    vars))


(define (common:run-a-command cmd #!key (with-vars #f) (with-orig-env #f))
  (let* ((pre-cmd  (dtests:get-pre-command))
         (post-cmd (dtests:get-post-command))
         (fullcmd  (if (or pre-cmd post-cmd)
                       (conc pre-cmd cmd post-cmd)