From 4ab2e29f2881596bee4dbf065aa3ce0e92d870fd Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Mon, 13 Nov 2006 00:50:54 +0000
Subject: [PATCH] For bug #154921, prevent an IndexError when a + is in USE.

svn path=/main/trunk/; revision=5021
---
 pym/portage.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pym/portage.py b/pym/portage.py
index 2f146a019..13646b2fb 100644
--- a/pym/portage.py
+++ b/pym/portage.py
@@ -1691,6 +1691,8 @@ class config:
 						writemsg(red("USE flags should not start with a '+': %s\n" % x),
 							noiselevel=-1)
 						x=x[1:]
+						if not x:
+							continue
 
 					if (x[0]=="-"):
 						if (x[1:] in myflags):
@@ -1758,6 +1760,8 @@ class config:
 					writemsg(colorize("BAD", "USE flags should not start " + \
 						"with a '+': %s\n" % x), noiselevel=-1)
 					x = x[1:]
+					if not x:
+						continue
 
 				if x[0] == "-":
 					try:
-- 
2.26.2