* apt-pkg/algorithms.cc:

  - ensure pkgProblemResolver calls MarkDelete without FromUser set
    so that it can't overrule holds and the protection flag

apt-pkg/algorithms.cc

@@ -287,13 +287,13 @@ bool pkgApplyStatus(pkgDepCache &Cache)
 		 Cache[I].CandidateVerIter(Cache).Downloadable() == true)
 	       Cache.MarkInstall(I, true, 0, false);
 	    else
-	       Cache.MarkDelete(I);
+	       Cache.MarkDelete(I, false, 0, false);
 	 }
 	 break;
 
 	 // This means removal failed
 	 case pkgCache::State::HalfInstalled:
-	 Cache.MarkDelete(I);
+	 Cache.MarkDelete(I, false, 0, false);
 	 break;
 	 
 	 default:
@@ -774,7 +774,7 @@ bool pkgProblemResolver::DoUpgrade(pkgCache::PkgIterator Pkg)
       if (WasKept == true)
 	 Cache.MarkKeep(Pkg, false, false);
       else
-	 Cache.MarkDelete(Pkg);
+	 Cache.MarkDelete(Pkg, false, 0, false);
       return false;
    }	 
    
@@ -903,7 +903,7 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix)
 		OldBreaks < Cache.BrokenCount())
 	    {
 	       if (OldVer == 0)
-		  Cache.MarkDelete(I);
+		  Cache.MarkDelete(I, false, 0, false);
 	       else
 		  Cache.MarkKeep(I, false, false);
 	    }	    
@@ -942,7 +942,7 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix)
 		     {
 			if (Debug == true)
 			   clog << "  Or group remove for " << I.FullName(false) << endl;
-			Cache.MarkDelete(I);
+			Cache.MarkDelete(I, false, 0, false);
 			Change = true;
 		     }
 		  }
@@ -1077,7 +1077,7 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix)
 			{
 			   if (Debug == true)
 			      clog << "  Removing " << I.FullName(false) << " rather than change " << Start.TargetPkg().FullName(false) << endl;
-			   Cache.MarkDelete(I);
+			   Cache.MarkDelete(I, false, 0, false);
 			   if (Counter > 1 && Scores[Pkg->ID] > Scores[I->ID])
 			      Scores[I->ID] = Scores[Pkg->ID];
 			}
@@ -1166,7 +1166,7 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix)
 		  if (Debug == true)
 		     clog << "  Removing " << I.FullName(false) << " because I can't find " << Start.TargetPkg().FullName(false) << endl;
 		  if (InOr == false)
-		     Cache.MarkDelete(I);
+		     Cache.MarkDelete(I, false, 0, false);
 	       }
 
 	       Change = true;
@@ -1193,7 +1193,7 @@ bool pkgProblemResolver::ResolveInternal(bool const BrokenFix)
 		  {
 		     if (Debug == true)
 			clog << "  Fixing " << I.FullName(false) << " via remove of " << J->Pkg.FullName(false) << endl;
-		     Cache.MarkDelete(J->Pkg);
+		     Cache.MarkDelete(J->Pkg, false, 0, false);
 		  }
 	       }
 	       else

debian/changelog

@@ -17,6 +17,9 @@ apt (0.9.7.7) UNRELEASED; urgency=low
   * cmdline/apt-get.cc:
     - do not call Mark{Install,Delete} from the autoremove code with
       the FromUser bit set to avoid modifying the auto-installed bit
+  * apt-pkg/algorithms.cc:
+    - ensure pkgProblemResolver calls MarkDelete without FromUser set
+      so that it can't overrule holds and the protection flag
 
  -- Jordi Mallach <jordi@debian.org>  Thu, 18 Oct 2012 23:30:46 +0200