Megatest

     (else
      (debug:print 4 "FAILS: " fails)
      ;; If one or more of the prereqs-not-met are FAIL then we can issue
      ;; a message and drop hed from the items to be processed.
      (if (null? fails)
	  (begin
	    ;; couldn't run, take a breather
	    (debug:print-info 0 "Shouldn't really get here, race condition? Unable to launch more tests at this moment, killing time ...")
	    (debug:print-info 0 "   test is " hed ", prereqs-not-met is " prereqs-not-met)
	    ;; (thread-sleep! (+ 0.01 *global-delta*)) ;; long sleep here - no resources, may as well be patient
	    (debug:print-info 0 "Waiting for more work to do...")
	    (thread-sleep! 1)
	    ;; we made new tal by sticking hed at the back of the list
	    (list (car newtal)(cdr newtal) reg reruns))
	  ;; the waiton is FAIL so no point in trying to run hed ever again
	  (if (or (not (null? reg))(not (null? tal)))
	      (if (vector? hed)
		  (begin 
		    (debug:print 1 "WARN: Dropping test " (db:test-get-testname hed) "/" (db:test-get-item-path hed)
				 " from the launch list as it has prerequistes that are FAIL")