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-rw-r--r--pym/_emerge/__init__.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py
index a0dfec85e..f5a94221a 100644
--- a/pym/_emerge/__init__.py
+++ b/pym/_emerge/__init__.py
@@ -2106,8 +2106,8 @@ class depgraph(object):
"""Return a set of flags that trigger reinstallation, or None if there
are no such flags."""
if "--newuse" in self.myopts:
- flags = orig_iuse.symmetric_difference(
- cur_iuse).difference(forced_flags)
+ flags = set(orig_iuse.symmetric_difference(
+ cur_iuse).difference(forced_flags))
flags.update(orig_iuse.intersection(orig_use).symmetric_difference(
cur_iuse.intersection(cur_use)))
if flags: