def expand_new_virtuals(mysplit, mydbapi, mysettings, use, mode, myuse,

	use_cache, use_binaries, myroot, trees, return_all_deps):

	""" Recursively expand new-style virtuals so as to

	collapse one or more levels of indirection."""

	newsplit = []

	dep_keys = ["RDEPEND","DEPEND","PDEPEND"]

	def compare_pkgs(a, b):

		return pkgcmp(b[1], a[1])

	portdb = trees[myroot]["porttree"].dbapi

	for x in mysplit:

		if type(x) == types.ListType:

			newsplit.append(expand_new_virtuals(x, mydbapi, mysettings, use,

				mode, myuse, use_cache, use_binaries, myroot, trees,

				return_all_deps))

			continue

		elif x.startswith("!"):

			newsplit.append(x)

			continue

		elif not dep_getkey(x).startswith("virtual/"):

			newsplit.append(x)

			continue

		pkgs = []

		for cpv in portdb.match(x):

			# only use new-style matches

			if cpv.startswith("virtual/"):

				pkgs.append((cpv, pkgsplit(cpv)))

		if not pkgs:

			newsplit.append(x)

			continue

		pkgs.sort(compare_pkgs) # Prefer higher versions.

		a = ['||']

		for y in pkgs:

			depstring = " ".join(portdb.aux_get(y[0], dep_keys))

			mycheck = dep_check(depstring, mydbapi, mysettings, use=use,

				mode=mode, myuse=myuse, use_cache=use_cache,

				use_binaries=use_binaries, myroot=myroot, trees=trees,

				return_all_deps=return_all_deps)

			if not mycheck[0]:

				raise portage_exception.ParseError(mycheck[1])

			a.append(mycheck[1])

		newsplit.append(a)

	return newsplit

	# Recursively expand new-style virtuals so as to

	# collapse one or more levels of indirection.

	mysplit = expand_new_virtuals(mysplit, mydbapi, mysettings, use, mode,

		myuse, use_cache, use_binaries, myroot, trees, return_all_deps)