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-rw-r--r--apt-pkg/algorithms.cc5
-rw-r--r--debian/changelog8
2 files changed, 11 insertions, 2 deletions
diff --git a/apt-pkg/algorithms.cc b/apt-pkg/algorithms.cc
index 8cd9d4c6e..991d425e3 100644
--- a/apt-pkg/algorithms.cc
+++ b/apt-pkg/algorithms.cc
@@ -645,7 +645,10 @@ void pkgProblemResolver::MakeScores()
D->Type != pkgCache::Dep::Recommends))
continue;
- Scores[I->ID] += abs(OldScores[D.ParentPkg()->ID]);
+ // Do not propagate negative scores otherwise
+ // an extra (-2) package might score better than an optional (-1)
+ if (OldScores[D.ParentPkg()->ID] > 0)
+ Scores[I->ID] += OldScores[D.ParentPkg()->ID];
}
}
diff --git a/debian/changelog b/debian/changelog
index db7a8ffda..7775c1b79 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,7 +4,13 @@ apt (0.9.7.9) UNRELEASED; urgency=low
* properly handle if-modfied-since with libcurl/https
(closes: #705648)
- -- Michael Vogt <michael.vogt@ubuntu.com> Wed, 08 May 2013 16:20:13 +0200
+ [ Andreas Beckman ]
+ * apt-pkg/algorithms.cc:
+ - Do not propagate negative scores from rdepends. Propagating the absolute
+ value of a negative score may boost obsolete packages and keep them
+ installed instead of installing their successors. (Closes: #699759)
+
+ -- Michael Vogt <mvo@debian.org> Wed, 08 May 2013 17:46:10 +0200
apt (0.9.7.8) unstable; urgency=criticial