From 75ab11ae3880530c5354cc90c8d1ff0998f8146b Mon Sep 17 00:00:00 2001
From: Michael Vogt <mvo@debian.org>
Date: Sat, 21 Dec 2013 18:50:03 +0100
Subject: make /etc/apt/preferences parser deal with comment only sections

---
 apt-pkg/policy.cc | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'apt-pkg/policy.cc')

diff --git a/apt-pkg/policy.cc b/apt-pkg/policy.cc
index 0a06cc6e3..d0f97441d 100644
--- a/apt-pkg/policy.cc
+++ b/apt-pkg/policy.cc
@@ -405,6 +405,10 @@ bool ReadPinFile(pkgPolicy &Plcy,string File)
    PreferenceSection Tags;
    while (TF.Step(Tags) == true)
    {
+      // can happen when there are only comments in a record
+      if (Tags.Count() == 0)
+         continue;
+
       string Name = Tags.FindS("Package");
       if (Name.empty() == true)
 	 return _error->Error(_("Invalid record in the preferences file %s, no Package header"), File.c_str());
-- 
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