From: Zac Medico <zmedico@gentoo.org>
Date: Wed, 18 May 2011 05:38:07 +0000 (-0700)
Subject: _find_libs_to_preserve: always return set
X-Git-Tag: v2.2.0_alpha34
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=2dec6268b2114a147e10503d6ddc4713443a2f99;p=portage.git

_find_libs_to_preserve: always return set
---

diff --git a/pym/portage/dbapi/vartree.py b/pym/portage/dbapi/vartree.py
index fd5c774a3..cd93a12ff 100644
--- a/pym/portage/dbapi/vartree.py
+++ b/pym/portage/dbapi/vartree.py
@@ -2350,7 +2350,7 @@ class dblink(object):
 			self.vartree.dbapi._plib_registry is None or \
 			(not unmerge and self._installed_instance is None) or \
 			"preserve-libs" not in self.settings.features:
-			return None
+			return set()
 
 		os = _os_merge
 		linkmap = self.vartree.dbapi._linkmap