* apt-pkg/deb/deblistparser.cc:

  - Set the Essential flag on APT instead of only Important

apt-pkg/deb/deblistparser.cc

@@ -249,7 +249,7 @@ bool debListParser::UsePackage(pkgCache::PkgIterator &Pkg,
       return false;
 
    if (strcmp(Pkg.Name(),"apt") == 0)
-      Pkg->Flags |= pkgCache::Flag::Important;
+      Pkg->Flags |= pkgCache::Flag::Essential | pkgCache::Flag::Important;
    
    if (ParseStatus(Pkg,Ver) == false)
       return false;

debian/changelog

@@ -37,6 +37,10 @@ apt (0.8.16~exp13) UNRELEASED; urgency=low
   * apt-pkg/contrib/fileutl.h:
     - fix compat with FileFd::OpenDescriptor() in ReadOnlyGzip mode
 
+  [ Julian Andres Klode ]
+  * apt-pkg/deb/deblistparser.cc:
+    - Set the Essential flag on APT instead of only Important
+
  -- David Kalnischkies <kalnischkies@gmail.com>  Mon, 30 Jan 2012 19:17:09 +0100
 
 apt (0.8.16~exp12) experimental; urgency=low