if background:

			interactive_tasks = self._get_interactive_tasks()

			if interactive_tasks:

				background = False

				writemsg_level(">>> Sending package output to stdio due " + \

					"to interactive package(s):\n",

					level=logging.INFO, noiselevel=-1)

				msg = [""]

				for pkg in interactive_tasks:

					pkg_str = "  " + colorize("INFORM", str(pkg.cpv))

					if pkg.root != "/":

						pkg_str += " for " + pkg.root

					msg.append(pkg_str)

				msg.append("")

				writemsg_level("".join("%s\n" % (l,) for l in msg),

					level=logging.INFO, noiselevel=-1)

				if self._max_jobs is True or self._max_jobs > 1:

					self._set_max_jobs(1)

					writemsg_level(">>> Setting --jobs=1 due " + \

						"to the above interactive package(s)\n",

						level=logging.INFO, noiselevel=-1)

	def _get_interactive_tasks(self):

		from portage import flatten

		from portage.dep import use_reduce, paren_reduce

		interactive_tasks = []

		for task in self._mergelist:

			if not (isinstance(task, Package) and \

				task.operation == "merge"):

				continue

			properties = flatten(use_reduce(paren_reduce(

				task.metadata["PROPERTIES"]), uselist=task.use.enabled))

			if "interactive" in properties:

				interactive_tasks.append(task)

		return interactive_tasks