From 9a16eb4a668c1aab4a91e0f08c8b01a0120d3c14 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Tue, 17 Oct 2006 09:49:48 +0000
Subject: [PATCH] Add -* support to stack_lists() and use dict.pop() for
 removal of flags when appropriate.

svn path=/main/trunk/; revision=4736
---
 pym/portage_util.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/pym/portage_util.py b/pym/portage_util.py
index 995688d03..d07fe63c9 100644
--- a/pym/portage_util.py
+++ b/pym/portage_util.py
@@ -137,9 +137,13 @@ def stack_lists(lists, incremental=1):
 	new_list = {}
 	for x in lists:
 		for y in filter(None, x):
-			if incremental and y.startswith("-"):
-				if y[1:] in new_list:
-					del new_list[y[1:]]
+			if incremental:
+				if y == "-*":
+					new_list.clear()
+				elif y.startswith("-"):
+					new_list.pop(y[1:], None)
+				else:
+					new_list[y] = True
 			else:
 				new_list[y] = True
 	return new_list.keys()
-- 
2.26.2