add c++11 override marker to overridden methods

C++11 adds the 'override' specifier to mark that a method is overriding
a base class method and error out if not. We hide it in the APT_OVERRIDE
macro to ensure that we keep compiling in pre-c++11 standards.

Reported-By: clang-modernize -add-override -override-macros
Git-Dch: Ignore

28 files changed, 267 insertions, 264 deletions

diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index b6466115e..864b93188 100644
--- a/apt-pkg/acquire-item.cc
+++ b/apt-pkg/acquire-item.cc
@@ -391,8 +391,8 @@ class APT_HIDDEN NoActionItem : public pkgAcquire::Item			/*{{{*/
 {
    IndexTarget const Target;
    public:
-   virtual std::string DescURI() const {return Target.URI;};
-   virtual HashStringList GetExpectedHashes()  const {return HashStringList();};
+   virtual std::string DescURI() const APT_OVERRIDE {return Target.URI;};
+   virtual HashStringList GetExpectedHashes()  const APT_OVERRIDE {return HashStringList();};
 
    NoActionItem(pkgAcquire * const Owner, IndexTarget const &Target) :
       pkgAcquire::Item(Owner), Target(Target)
diff --git a/apt-pkg/acquire-item.h b/apt-pkg/acquire-item.h
index 93d812248..2349d386c 100644
--- a/apt-pkg/acquire-item.h
+++ b/apt-pkg/acquire-item.h
@@ -349,7 +349,7 @@ class APT_HIDDEN pkgAcqTransactionItem: public pkgAcquire::Item		/*{{{*/
    IndexTarget const Target;
    HashStringList GetExpectedHashesFor(std::string const &MetaKey) const;
 
-   bool QueueURI(pkgAcquire::ItemDesc &Item);
+   bool QueueURI(pkgAcquire::ItemDesc &Item) APT_OVERRIDE;
 
    public:
    /** \brief storge name until a transaction is finished */
@@ -364,10 +364,10 @@ class APT_HIDDEN pkgAcqTransactionItem: public pkgAcquire::Item		/*{{{*/
    };
    virtual bool TransactionState(TransactionStates const state);
 
-   virtual std::string DescURI() const { return Target.URI; }
-   virtual HashStringList GetExpectedHashes() const;
+   virtual std::string DescURI() const APT_OVERRIDE { return Target.URI; }
+   virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
    virtual std::string GetMetaKey() const;
-   virtual bool HashesRequired() const;
+   virtual bool HashesRequired() const APT_OVERRIDE;
 
 
    pkgAcqTransactionItem(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager, IndexTarget const &Target);
@@ -417,7 +417,7 @@ class APT_HIDDEN pkgAcqMetaBase : public pkgAcqTransactionItem		/*{{{*/
    /** \brief Queue the downloaded Signature for verification */
    void QueueForSignatureVerify(pkgAcqTransactionItem * const I, std::string const &File, std::string const &Signature);
 
-   virtual std::string Custom600Headers() const;
+   virtual std::string Custom600Headers() const APT_OVERRIDE;
 
    /** \brief Called when authentication succeeded.
     *
@@ -440,15 +440,15 @@ class APT_HIDDEN pkgAcqMetaBase : public pkgAcqTransactionItem		/*{{{*/
     */
    bool VerifyVendor(std::string const &Message);
 
-   virtual bool TransactionState(TransactionStates const state);
+   virtual bool TransactionState(TransactionStates const state) APT_OVERRIDE;
 
  public:
    // This refers more to the Transaction-Manager than the actual file
    bool IMSHit;
 
-   virtual bool QueueURI(pkgAcquire::ItemDesc &Item);
-   virtual HashStringList GetExpectedHashes() const;
-   virtual bool HashesRequired() const;
+   virtual bool QueueURI(pkgAcquire::ItemDesc &Item) APT_OVERRIDE;
+   virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+   virtual bool HashesRequired() const APT_OVERRIDE;
 
    // transaction code
    void Add(pkgAcqTransactionItem * const I);
@@ -466,7 +466,7 @@ class APT_HIDDEN pkgAcqMetaBase : public pkgAcqTransactionItem		/*{{{*/
    void TransactionStageRemoval(pkgAcqTransactionItem * const I, const std::string &FinalFile);
 
    /** \brief Get the full pathname of the final file for the current URI */
-   virtual std::string GetFinalFilename() const;
+   virtual std::string GetFinalFilename() const APT_OVERRIDE;
 
    pkgAcqMetaBase(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
 		  std::vector<IndexTarget> const &IndexTargets,
@@ -494,13 +494,13 @@ class APT_HIDDEN pkgAcqMetaIndex : public pkgAcqMetaBase
    void Init(std::string const &URIDesc, std::string const &ShortDesc);
 
    public:
-   virtual std::string DescURI() const;
+   virtual std::string DescURI() const APT_OVERRIDE;
 
    // Specialized action members
-   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
    virtual void Done(std::string const &Message, HashStringList const &Hashes,
-		     pkgAcquire::MethodConfig const * const Cnf);
-   virtual void Finished();
+		     pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual void Finished() APT_OVERRIDE;
 
    /** \brief Create a new pkgAcqMetaIndex. */
    pkgAcqMetaIndex(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
@@ -531,16 +531,16 @@ class APT_HIDDEN pkgAcqMetaSig : public pkgAcqTransactionItem
    protected:
 
    /** \brief Get the full pathname of the final file for the current URI */
-   virtual std::string GetFinalFilename() const;
+   virtual std::string GetFinalFilename() const APT_OVERRIDE;
 
    public:
-   virtual bool HashesRequired() const { return false; }
+   virtual bool HashesRequired() const APT_OVERRIDE { return false; }
 
    // Specialized action members
-   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
    virtual void Done(std::string const &Message, HashStringList const &Hashes,
-		     pkgAcquire::MethodConfig const * const Cnf);
-   virtual std::string Custom600Headers() const;
+		     pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual std::string Custom600Headers() const APT_OVERRIDE;
 
    /** \brief Create a new pkgAcqMetaSig. */
    pkgAcqMetaSig(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
@@ -561,10 +561,10 @@ class APT_HIDDEN pkgAcqMetaClearSig : public pkgAcqMetaIndex
    metaIndex *MetaIndexParser;
    metaIndex *LastMetaIndexParser;
 
-   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
-   virtual std::string Custom600Headers() const;
+   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual std::string Custom600Headers() const APT_OVERRIDE;
    virtual void Done(std::string const &Message, HashStringList const &Hashes,
-		     pkgAcquire::MethodConfig const * const Cnf);
+		     pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
 
    /** \brief Create a new pkgAcqMetaClearSig. */
    pkgAcqMetaClearSig(pkgAcquire * const Owner,
@@ -583,7 +583,7 @@ class APT_HIDDEN pkgAcqBaseIndex : public pkgAcqTransactionItem
 
  public:
    /** \brief Get the full pathname of the final file for the current URI */
-   virtual std::string GetFinalFilename() const;
+   virtual std::string GetFinalFilename() const APT_OVERRIDE;
 
    pkgAcqBaseIndex(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
                    IndexTarget const &Target);
@@ -614,19 +614,19 @@ class APT_HIDDEN pkgAcqDiffIndex : public pkgAcqBaseIndex
    std::string Description;
 
    /** \brief Get the full pathname of the final file for the current URI */
-   virtual std::string GetFinalFilename() const;
+   virtual std::string GetFinalFilename() const APT_OVERRIDE;
 
-   virtual bool QueueURI(pkgAcquire::ItemDesc &Item);
+   virtual bool QueueURI(pkgAcquire::ItemDesc &Item) APT_OVERRIDE;
 
-   virtual bool TransactionState(TransactionStates const state);
+   virtual bool TransactionState(TransactionStates const state) APT_OVERRIDE;
  public:
    // Specialized action members
-   virtual void Failed(std::string const &Message, pkgAcquire::MethodConfig const * const Cnf);
+   virtual void Failed(std::string const &Message, pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
    virtual void Done(std::string const &Message, HashStringList const &Hashes,
-		     pkgAcquire::MethodConfig const * const Cnf);
-   virtual std::string DescURI() const {return Target.URI + "Index";};
-   virtual std::string Custom600Headers() const;
-   virtual std::string GetMetaKey() const;
+		     pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual std::string DescURI() const APT_OVERRIDE {return Target.URI + "Index";};
+   virtual std::string Custom600Headers() const APT_OVERRIDE;
+   virtual std::string GetMetaKey() const APT_OVERRIDE;
 
    /** \brief Parse the Index file for a set of Packages diffs.
     *
@@ -724,13 +724,13 @@ class APT_HIDDEN pkgAcqIndexMergeDiffs : public pkgAcqBaseIndex
     *  This method will fall back to downloading the whole index file
     *  outright; its arguments are ignored.
     */
-   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
    virtual void Done(std::string const &Message, HashStringList const &Hashes,
-	 pkgAcquire::MethodConfig const * const Cnf);
-   virtual std::string Custom600Headers() const;
-   virtual std::string DescURI() const {return Target.URI + "Index";};
-   virtual HashStringList GetExpectedHashes() const;
-   virtual bool HashesRequired() const;
+	 pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual std::string Custom600Headers() const APT_OVERRIDE;
+   virtual std::string DescURI() const APT_OVERRIDE {return Target.URI + "Index";};
+   virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+   virtual bool HashesRequired() const APT_OVERRIDE;
 
    /** \brief Create an index merge-diff item.
     *
@@ -836,14 +836,14 @@ class APT_HIDDEN pkgAcqIndexDiffs : public pkgAcqBaseIndex
     *  This method will fall back to downloading the whole index file
     *  outright; its arguments are ignored.
     */
-   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
 
    virtual void Done(std::string const &Message, HashStringList const &Hashes,
-		     pkgAcquire::MethodConfig const * const Cnf);
-   virtual std::string Custom600Headers() const;
-   virtual std::string DescURI() const {return Target.URI + "IndexDiffs";};
-   virtual HashStringList GetExpectedHashes() const;
-   virtual bool HashesRequired() const;
+		     pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual std::string Custom600Headers() const APT_OVERRIDE;
+   virtual std::string DescURI() const APT_OVERRIDE {return Target.URI + "IndexDiffs";};
+   virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+   virtual bool HashesRequired() const APT_OVERRIDE;
 
    /** \brief Create an index diff item.
     *
@@ -928,18 +928,18 @@ class APT_HIDDEN pkgAcqIndex : public pkgAcqBaseIndex
    void ReverifyAfterIMS();
 
    /** \brief Get the full pathname of the final file for the current URI */
-   virtual std::string GetFinalFilename() const;
+   virtual std::string GetFinalFilename() const APT_OVERRIDE;
 
-   virtual bool TransactionState(TransactionStates const state);
+   virtual bool TransactionState(TransactionStates const state) APT_OVERRIDE;
 
    public:
    // Specialized action members
-   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
    virtual void Done(std::string const &Message, HashStringList const &Hashes,
-		     pkgAcquire::MethodConfig const * const Cnf);
-   virtual std::string Custom600Headers() const;
-   virtual std::string DescURI() const {return Desc.URI;};
-   virtual std::string GetMetaKey() const;
+		     pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual std::string Custom600Headers() const APT_OVERRIDE;
+   virtual std::string DescURI() const APT_OVERRIDE {return Desc.URI;};
+   virtual std::string GetMetaKey() const APT_OVERRIDE;
 
    pkgAcqIndex(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
                IndexTarget const &Target);
@@ -1000,19 +1000,19 @@ class pkgAcqArchive : public pkgAcquire::Item
    bool QueueNext();
 
    /** \brief Get the full pathname of the final file for the current URI */
-   virtual std::string GetFinalFilename() const;
+   virtual std::string GetFinalFilename() const APT_OVERRIDE;
 
    public:
 
-   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
    virtual void Done(std::string const &Message, HashStringList const &Hashes,
-		     pkgAcquire::MethodConfig const * const Cnf);
-   virtual std::string DescURI() const;
-   virtual std::string ShortDesc() const;
-   virtual void Finished();
-   virtual bool IsTrusted() const;
-   virtual HashStringList GetExpectedHashes() const;
-   virtual bool HashesRequired() const;
+		     pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual std::string DescURI() const APT_OVERRIDE;
+   virtual std::string ShortDesc() const APT_OVERRIDE;
+   virtual void Finished() APT_OVERRIDE;
+   virtual bool IsTrusted() const APT_OVERRIDE;
+   virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+   virtual bool HashesRequired() const APT_OVERRIDE;
 
    /** \brief Create a new pkgAcqArchive.
     *
@@ -1053,14 +1053,14 @@ class pkgAcqChangelog : public pkgAcquire::Item
    public:
    // we will never have hashes for changelogs.
    // If you need verified ones, download the deb and extract the changelog.
-   virtual HashStringList GetExpectedHashes() const { return HashStringList(); }
-   virtual bool HashesRequired() const { return false; }
+   virtual HashStringList GetExpectedHashes() const APT_OVERRIDE { return HashStringList(); }
+   virtual bool HashesRequired() const APT_OVERRIDE { return false; }
 
    // Specialized action members
-   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
    virtual void Done(std::string const &Message, HashStringList const &CalcHashes,
-		     pkgAcquire::MethodConfig const * const Cnf);
-   virtual std::string DescURI() const {return Desc.URI;};
+		     pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual std::string DescURI() const APT_OVERRIDE {return Desc.URI;};
 
    /** returns the URI to the changelog of this version
     *
@@ -1172,15 +1172,15 @@ class pkgAcqFile : public pkgAcquire::Item
 
    HashStringList const ExpectedHashes;
    public:
-   virtual HashStringList GetExpectedHashes() const;
-   virtual bool HashesRequired() const;
+   virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+   virtual bool HashesRequired() const APT_OVERRIDE;
 
    // Specialized action members
-   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+   virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
    virtual void Done(std::string const &Message, HashStringList const &CalcHashes,
-		     pkgAcquire::MethodConfig const * const Cnf);
-   virtual std::string DescURI() const {return Desc.URI;};
-   virtual std::string Custom600Headers() const;
+		     pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+   virtual std::string DescURI() const APT_OVERRIDE {return Desc.URI;};
+   virtual std::string Custom600Headers() const APT_OVERRIDE;
 
    /** \brief Create a new pkgAcqFile object.
     *
diff --git a/apt-pkg/algorithms.h b/apt-pkg/algorithms.h
index d9cce672a..28057fa5c 100644
--- a/apt-pkg/algorithms.h
+++ b/apt-pkg/algorithms.h
@@ -62,7 +62,7 @@ class pkgSimulate : public pkgPackageManager				/*{{{*/
       pkgDepCache *Cache;
       public:
       
-      virtual VerIterator GetCandidateVer(PkgIterator const &Pkg)
+      virtual VerIterator GetCandidateVer(PkgIterator const &Pkg) APT_OVERRIDE
       {
 	 return (*Cache)[Pkg].CandidateVerIter(*Cache);
       }
@@ -77,9 +77,9 @@ class pkgSimulate : public pkgPackageManager				/*{{{*/
    pkgDepCache::ActionGroup group;
    
    // The Actuall installation implementation
-   virtual bool Install(PkgIterator Pkg,std::string File);
-   virtual bool Configure(PkgIterator Pkg);
-   virtual bool Remove(PkgIterator Pkg,bool Purge);
+   virtual bool Install(PkgIterator Pkg,std::string File) APT_OVERRIDE;
+   virtual bool Configure(PkgIterator Pkg) APT_OVERRIDE;
+   virtual bool Remove(PkgIterator Pkg,bool Purge) APT_OVERRIDE;
 
 private:
    APT_HIDDEN void ShortBreaks();
diff --git a/apt-pkg/cachefilter.h b/apt-pkg/cachefilter.h
index df9e9460a..2719154c1 100644
--- a/apt-pkg/cachefilter.h
+++ b/apt-pkg/cachefilter.h
@@ -30,33 +30,33 @@ public:
 class PackageMatcher : public Matcher {
 public:
    virtual bool operator() (pkgCache::PkgIterator const &Pkg) = 0;
-   virtual bool operator() (pkgCache::VerIterator const &Ver) { return (*this)(Ver.ParentPkg()); }
-   virtual bool operator() (pkgCache::GrpIterator const &/*Grp*/) { return false; }
+   virtual bool operator() (pkgCache::VerIterator const &Ver) APT_OVERRIDE { return (*this)(Ver.ParentPkg()); }
+   virtual bool operator() (pkgCache::GrpIterator const &/*Grp*/) APT_OVERRIDE { return false; }
    virtual ~PackageMatcher();
 };
 
 // Generica like True, False, NOT, AND, OR				/*{{{*/
 class TrueMatcher : public Matcher {
 public:
-   virtual bool operator() (pkgCache::PkgIterator const &Pkg);
-   virtual bool operator() (pkgCache::GrpIterator const &Grp);
-   virtual bool operator() (pkgCache::VerIterator const &Ver);
+   virtual bool operator() (pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::GrpIterator const &Grp) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::VerIterator const &Ver) APT_OVERRIDE;
 };
 
 class FalseMatcher : public Matcher {
 public:
-   virtual bool operator() (pkgCache::PkgIterator const &Pkg);
-   virtual bool operator() (pkgCache::GrpIterator const &Grp);
-   virtual bool operator() (pkgCache::VerIterator const &Ver);
+   virtual bool operator() (pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::GrpIterator const &Grp) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::VerIterator const &Ver) APT_OVERRIDE;
 };
 
 class NOTMatcher : public Matcher {
    Matcher * const matcher;
 public:
    explicit NOTMatcher(Matcher * const matcher);
-   virtual bool operator() (pkgCache::PkgIterator const &Pkg);
-   virtual bool operator() (pkgCache::GrpIterator const &Grp);
-   virtual bool operator() (pkgCache::VerIterator const &Ver);
+   virtual bool operator() (pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::GrpIterator const &Grp) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::VerIterator const &Ver) APT_OVERRIDE;
    virtual ~NOTMatcher();
 };
 
@@ -71,9 +71,9 @@ public:
    ANDMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4);
    ANDMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4, Matcher * const matcher5);
    ANDMatcher& AND(Matcher * const matcher);
-   virtual bool operator() (pkgCache::PkgIterator const &Pkg);
-   virtual bool operator() (pkgCache::GrpIterator const &Grp);
-   virtual bool operator() (pkgCache::VerIterator const &Ver);
+   virtual bool operator() (pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::GrpIterator const &Grp) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::VerIterator const &Ver) APT_OVERRIDE;
    virtual ~ANDMatcher();
 };
 class ORMatcher : public Matcher {
@@ -87,9 +87,9 @@ public:
    ORMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4);
    ORMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4, Matcher * const matcher5);
    ORMatcher& OR(Matcher * const matcher);
-   virtual bool operator() (pkgCache::PkgIterator const &Pkg);
-   virtual bool operator() (pkgCache::GrpIterator const &Grp);
-   virtual bool operator() (pkgCache::VerIterator const &Ver);
+   virtual bool operator() (pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::GrpIterator const &Grp) APT_OVERRIDE;
+   virtual bool operator() (pkgCache::VerIterator const &Ver) APT_OVERRIDE;
    virtual ~ORMatcher();
 };
 									/*}}}*/
@@ -97,8 +97,8 @@ class PackageNameMatchesRegEx : public PackageMatcher {			/*{{{*/
 	regex_t* pattern;
 public:
 	explicit PackageNameMatchesRegEx(std::string const &Pattern);
-	virtual bool operator() (pkgCache::PkgIterator const &Pkg);
-	virtual bool operator() (pkgCache::GrpIterator const &Grp);
+	virtual bool operator() (pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+	virtual bool operator() (pkgCache::GrpIterator const &Grp) APT_OVERRIDE;
 	virtual ~PackageNameMatchesRegEx();
 };
 									/*}}}*/
@@ -106,8 +106,8 @@ class PackageNameMatchesFnmatch : public PackageMatcher {		/*{{{*/
 	const std::string Pattern;
 public:
 	explicit PackageNameMatchesFnmatch(std::string const &Pattern);
-	virtual bool operator() (pkgCache::PkgIterator const &Pkg);
-	virtual bool operator() (pkgCache::GrpIterator const &Grp);
+	virtual bool operator() (pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+	virtual bool operator() (pkgCache::GrpIterator const &Grp) APT_OVERRIDE;
 	virtual ~PackageNameMatchesFnmatch() {};
 };
 									/*}}}*/
@@ -133,7 +133,7 @@ public:
 	 */
 	PackageArchitectureMatchesSpecification(std::string const &pattern, bool const isPattern = true);
 	bool operator() (char const * const &arch);
-	virtual bool operator() (pkgCache::PkgIterator const &Pkg);
+	virtual bool operator() (pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
 	virtual ~PackageArchitectureMatchesSpecification();
 };
 									/*}}}*/
@@ -141,7 +141,7 @@ class PackageIsNewInstall : public PackageMatcher {			/*{{{*/
 	pkgCacheFile * const Cache;
 public:
 	explicit PackageIsNewInstall(pkgCacheFile * const Cache);
-	virtual bool operator() (pkgCache::PkgIterator const &Pkg);
+	virtual bool operator() (pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
 	virtual ~PackageIsNewInstall();
 };
 									/*}}}*/
diff --git a/apt-pkg/contrib/md5.h b/apt-pkg/contrib/md5.h
index f4992c223..a16ea4d2d 100644
--- a/apt-pkg/contrib/md5.h
+++ b/apt-pkg/contrib/md5.h
@@ -48,7 +48,7 @@ class MD5Summation : public SummationImplementation
 
    public:
 
-   bool Add(const unsigned char *inbuf, unsigned long long inlen);
+   bool Add(const unsigned char *inbuf, unsigned long long inlen) APT_OVERRIDE;
    using SummationImplementation::Add;
 
    MD5SumValue Result();
diff --git a/apt-pkg/contrib/progress.h b/apt-pkg/contrib/progress.h
index f7fbc9ccf..427b1bd35 100644
--- a/apt-pkg/contrib/progress.h
+++ b/apt-pkg/contrib/progress.h
@@ -24,6 +24,7 @@
 
 #include <string>
 #include <sys/time.h>
+#include <apt-pkg/macros.h>
 
 #ifndef APT_8_CLEANER_HEADERS
 using std::string;
@@ -74,12 +75,12 @@ class OpTextProgress : public OpProgress
    bool NoUpdate;
    bool NoDisplay;
    unsigned long LastLen;
-   virtual void Update();
+   virtual void Update() APT_OVERRIDE;
    void Write(const char *S);
    
    public:
 
-   virtual void Done();
+   virtual void Done() APT_OVERRIDE;
    
    OpTextProgress(bool NoUpdate = false) : NoUpdate(NoUpdate), 
                 NoDisplay(false), LastLen(0) {};
diff --git a/apt-pkg/contrib/sha1.h b/apt-pkg/contrib/sha1.h
index 5770c315a..1c5cb5aa1 100644
--- a/apt-pkg/contrib/sha1.h
+++ b/apt-pkg/contrib/sha1.h
@@ -37,7 +37,7 @@ class SHA1Summation : public SummationImplementation
    bool Done;
    
    public:
-   bool Add(const unsigned char *inbuf, unsigned long long inlen);
+   bool Add(const unsigned char *inbuf, unsigned long long inlen) APT_OVERRIDE;
    using SummationImplementation::Add;
 
    SHA1SumValue Result();
diff --git a/apt-pkg/contrib/sha2.h b/apt-pkg/contrib/sha2.h
index a25ad4d32..70e8384f2 100644
--- a/apt-pkg/contrib/sha2.h
+++ b/apt-pkg/contrib/sha2.h
@@ -45,7 +45,7 @@ class SHA256Summation : public SHA2SummationBase
    unsigned char Sum[32];
 
    public:
-   bool Add(const unsigned char *inbuf, unsigned long long len)
+   bool Add(const unsigned char *inbuf, unsigned long long len) APT_OVERRIDE
    {
       if (Done) 
          return false;
@@ -78,7 +78,7 @@ class SHA512Summation : public SHA2SummationBase
    unsigned char Sum[64];
 
    public:
-   bool Add(const unsigned char *inbuf, unsigned long long len)
+   bool Add(const unsigned char *inbuf, unsigned long long len) APT_OVERRIDE
    {
       if (Done) 
          return false;
diff --git a/apt-pkg/deb/debindexfile.cc b/apt-pkg/deb/debindexfile.cc
index c5086b04b..972feba7f 100644
--- a/apt-pkg/deb/debindexfile.cc
+++ b/apt-pkg/deb/debindexfile.cc
@@ -482,7 +482,7 @@ class APT_HIDDEN debIFTypePkg : public pkgIndexFile::Type
 {
    public:
    
-   virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const 
+   virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const APT_OVERRIDE 
    {
       return new debRecordParser(File.FileName(),*File.Cache());
    };
@@ -497,7 +497,7 @@ class APT_HIDDEN debIFTypeStatus : public pkgIndexFile::Type
 {
    public:
    
-   virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const 
+   virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const APT_OVERRIDE 
    {
       return new debRecordParser(File.FileName(),*File.Cache());
    };
@@ -506,7 +506,7 @@ class APT_HIDDEN debIFTypeStatus : public pkgIndexFile::Type
 class APT_HIDDEN debIFTypeDebPkgFile : public pkgIndexFile::Type
 {
    public:
-   virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const 
+   virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator File) const APT_OVERRIDE 
    {
       return new debDebFileRecordParser(File.FileName());
    };
@@ -515,7 +515,7 @@ class APT_HIDDEN debIFTypeDebPkgFile : public pkgIndexFile::Type
 class APT_HIDDEN debIFTypeDscFile : public pkgIndexFile::Type
 {
    public:
-   virtual pkgSrcRecords::Parser *CreateSrcPkgParser(std::string DscFile) const
+   virtual pkgSrcRecords::Parser *CreateSrcPkgParser(std::string DscFile) const APT_OVERRIDE
    {
       return new debDscRecordParser(DscFile, NULL);
    };
@@ -524,7 +524,7 @@ class APT_HIDDEN debIFTypeDscFile : public pkgIndexFile::Type
 class APT_HIDDEN debIFTypeDebianSourceDir : public pkgIndexFile::Type
 {
    public:
-   virtual pkgSrcRecords::Parser *CreateSrcPkgParser(std::string SourceDir) const
+   virtual pkgSrcRecords::Parser *CreateSrcPkgParser(std::string SourceDir) const APT_OVERRIDE
    {
       return new debDscRecordParser(SourceDir + string("/debian/control"), NULL);
    };
diff --git a/apt-pkg/deb/debindexfile.h b/apt-pkg/deb/debindexfile.h
index 1de609a7b..71ca22e4d 100644
--- a/apt-pkg/deb/debindexfile.h
+++ b/apt-pkg/deb/debindexfile.h
@@ -38,14 +38,14 @@ class APT_HIDDEN debStatusIndex : public pkgIndexFile
    virtual const Type *GetType() const APT_CONST;
 
    // Interface for acquire
-   virtual std::string Describe(bool /*Short*/) const {return File;};
+   virtual std::string Describe(bool /*Short*/) const APT_OVERRIDE {return File;};
 
    // Interface for the Cache Generator
-   virtual bool Exists() const;
-   virtual bool HasPackages() const {return true;};
-   virtual unsigned long Size() const;
-   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const;
-   virtual pkgCache::PkgFileIterator FindInCache(pkgCache &Cache) const;
+   virtual bool Exists() const APT_OVERRIDE;
+   virtual bool HasPackages() const APT_OVERRIDE {return true;};
+   virtual unsigned long Size() const APT_OVERRIDE;
+   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const APT_OVERRIDE;
+   virtual pkgCache::PkgFileIterator FindInCache(pkgCache &Cache) const APT_OVERRIDE;
 
    debStatusIndex(std::string File);
    virtual ~debStatusIndex();
@@ -59,12 +59,12 @@ class APT_HIDDEN debPackagesIndex : public pkgIndexTargetFile
    virtual const Type *GetType() const APT_CONST;
 
    // Stuff for accessing files on remote items
-   virtual std::string ArchiveInfo(pkgCache::VerIterator Ver) const;
+   virtual std::string ArchiveInfo(pkgCache::VerIterator Ver) const APT_OVERRIDE;
 
    // Interface for the Cache Generator
-   virtual bool HasPackages() const {return true;};
-   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const;
-   virtual pkgCache::PkgFileIterator FindInCache(pkgCache &Cache) const;
+   virtual bool HasPackages() const APT_OVERRIDE {return true;};
+   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const APT_OVERRIDE;
+   virtual pkgCache::PkgFileIterator FindInCache(pkgCache &Cache) const APT_OVERRIDE;
 
    debPackagesIndex(IndexTarget const &Target, bool const Trusted);
    virtual ~debPackagesIndex();
@@ -78,9 +78,9 @@ class APT_HIDDEN debTranslationsIndex : public pkgIndexTargetFile
    virtual const Type *GetType() const APT_CONST;
 
    // Interface for the Cache Generator
-   virtual bool HasPackages() const;
-   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const;
-   virtual pkgCache::PkgFileIterator FindInCache(pkgCache &Cache) const;
+   virtual bool HasPackages() const APT_OVERRIDE;
+   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const APT_OVERRIDE;
+   virtual pkgCache::PkgFileIterator FindInCache(pkgCache &Cache) const APT_OVERRIDE;
 
    debTranslationsIndex(IndexTarget const &Target);
    virtual ~debTranslationsIndex();
@@ -95,13 +95,13 @@ class APT_HIDDEN debSourcesIndex : public pkgIndexTargetFile
 
    // Stuff for accessing files on remote items
    virtual std::string SourceInfo(pkgSrcRecords::Parser const &Record,
-			     pkgSrcRecords::File const &File) const;
+			     pkgSrcRecords::File const &File) const APT_OVERRIDE;
 
    // Interface for the record parsers
-   virtual pkgSrcRecords::Parser *CreateSrcParser() const;
+   virtual pkgSrcRecords::Parser *CreateSrcParser() const APT_OVERRIDE;
 
    // Interface for the Cache Generator
-   virtual bool HasPackages() const {return false;};
+   virtual bool HasPackages() const APT_OVERRIDE {return false;};
 
    debSourcesIndex(IndexTarget const &Target, bool const Trusted);
    virtual ~debSourcesIndex();
@@ -117,7 +117,7 @@ class APT_HIDDEN debDebPkgFileIndex : public pkgIndexFile
  public:
    virtual const Type *GetType() const APT_CONST;
 
-   virtual std::string Describe(bool /*Short*/) const {
+   virtual std::string Describe(bool /*Short*/) const APT_OVERRIDE {
       return DebFile;
    }
 
@@ -130,16 +130,16 @@ class APT_HIDDEN debDebPkgFileIndex : public pkgIndexFile
    static bool GetContent(std::ostream &content, std::string const &debfile);
 
    // Interface for the Cache Generator
-   virtual bool Exists() const;
-   virtual bool HasPackages() const {
+   virtual bool Exists() const APT_OVERRIDE;
+   virtual bool HasPackages() const APT_OVERRIDE {
       return true;
    };
-   virtual unsigned long Size() const;
-   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const;
-   virtual pkgCache::PkgFileIterator FindInCache(pkgCache &Cache) const;
+   virtual unsigned long Size() const APT_OVERRIDE;
+   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const APT_OVERRIDE;
+   virtual pkgCache::PkgFileIterator FindInCache(pkgCache &Cache) const APT_OVERRIDE;
 
    // Interface for acquire
-   virtual std::string ArchiveURI(std::string /*File*/) const;
+   virtual std::string ArchiveURI(std::string /*File*/) const APT_OVERRIDE;
 
    debDebPkgFileIndex(std::string DebFile);
    virtual ~debDebPkgFileIndex();
@@ -152,11 +152,11 @@ class APT_HIDDEN debDscFileIndex : public pkgIndexFile
    std::string DscFile;
  public:
    virtual const Type *GetType() const APT_CONST;
-   virtual pkgSrcRecords::Parser *CreateSrcParser() const;
-   virtual bool Exists() const;
-   virtual bool HasPackages() const {return false;};
-   virtual unsigned long Size() const;
-   virtual std::string Describe(bool /*Short*/) const {
+   virtual pkgSrcRecords::Parser *CreateSrcParser() const APT_OVERRIDE;
+   virtual bool Exists() const APT_OVERRIDE;
+   virtual bool HasPackages() const APT_OVERRIDE {return false;};
+   virtual unsigned long Size() const APT_OVERRIDE;
+   virtual std::string Describe(bool /*Short*/) const APT_OVERRIDE {
       return DscFile;
    };
 
diff --git a/apt-pkg/deb/deblistparser.h b/apt-pkg/deb/deblistparser.h
index 3fd040bdd..4bc3c2341 100644
--- a/apt-pkg/deb/deblistparser.h
+++ b/apt-pkg/deb/deblistparser.h
@@ -62,24 +62,24 @@ class APT_HIDDEN debListParser : public pkgCacheGenerator::ListParser
    APT_PUBLIC static unsigned char GetPrio(std::string Str);
       
    // These all operate against the current section
-   virtual std::string Package();
-   virtual std::string Architecture();
-   virtual bool ArchitectureAll();
-   virtual std::string Version();
-   virtual bool NewVersion(pkgCache::VerIterator &Ver);
-   virtual std::string Description(std::string const &lang);
-   virtual std::vector<std::string> AvailableDescriptionLanguages();
-   virtual MD5SumValue Description_md5();
-   virtual unsigned short VersionHash();
+   virtual std::string Package() APT_OVERRIDE;
+   virtual std::string Architecture() APT_OVERRIDE;
+   virtual bool ArchitectureAll() APT_OVERRIDE;
+   virtual std::string Version() APT_OVERRIDE;
+   virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
+   virtual std::string Description(std::string const &lang) APT_OVERRIDE;
+   virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
+   virtual MD5SumValue Description_md5() APT_OVERRIDE;
+   virtual unsigned short VersionHash() APT_OVERRIDE;
 #if APT_PKG_ABI >= 413
-   virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver);
+   virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver) APT_OVERRIDE;
 #endif
    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
-			   pkgCache::VerIterator &Ver);
-   virtual map_filesize_t Offset() {return iOffset;};
-   virtual map_filesize_t Size() {return Section.size();};
+			   pkgCache::VerIterator &Ver) APT_OVERRIDE;
+   virtual map_filesize_t Offset() APT_OVERRIDE {return iOffset;};
+   virtual map_filesize_t Size() APT_OVERRIDE {return Section.size();};
 
-   virtual bool Step();
+   virtual bool Step() APT_OVERRIDE;
 
    bool LoadReleaseInfo(pkgCache::RlsFileIterator &FileI,FileFd &File,
 			std::string const &section);
@@ -111,15 +111,15 @@ class APT_HIDDEN debDebFileParser : public debListParser
  public:
    debDebFileParser(FileFd *File, std::string const &DebFile);
    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
-			   pkgCache::VerIterator &Ver);
+			   pkgCache::VerIterator &Ver) APT_OVERRIDE;
 };
 
 class APT_HIDDEN debTranslationsParser : public debListParser
 {
  public:
    // a translation can never be a real package
-   virtual std::string Architecture() { return ""; }
-   virtual std::string Version() { return ""; }
+   virtual std::string Architecture() APT_OVERRIDE { return ""; }
+   virtual std::string Version() APT_OVERRIDE { return ""; }
 
    debTranslationsParser(FileFd *File, std::string const &Arch = "")
       : debListParser(File, Arch) {};
diff --git a/apt-pkg/deb/debmetaindex.cc b/apt-pkg/deb/debmetaindex.cc
index 10ab0f844..46a7181fc 100644
--- a/apt-pkg/deb/debmetaindex.cc
+++ b/apt-pkg/deb/debmetaindex.cc
@@ -758,7 +758,7 @@ class APT_HIDDEN debSLTypeDeb : public debSLTypeDebian			/*{{{*/
 
    bool CreateItem(std::vector<metaIndex *> &List, std::string const &URI,
 		   std::string const &Dist, std::string const &Section,
-		   std::map<std::string, std::string> const &Options) const
+		   std::map<std::string, std::string> const &Options) const APT_OVERRIDE
    {
       return CreateItemInternal(List, URI, Dist, Section, false, Options);
    }
@@ -774,7 +774,7 @@ class APT_HIDDEN debSLTypeDebSrc : public debSLTypeDebian		/*{{{*/
 
    bool CreateItem(std::vector<metaIndex *> &List, std::string const &URI,
 		   std::string const &Dist, std::string const &Section,
-		   std::map<std::string, std::string> const &Options) const
+		   std::map<std::string, std::string> const &Options) const APT_OVERRIDE
    {
       return CreateItemInternal(List, URI, Dist, Section, true, Options);
    }
@@ -800,7 +800,7 @@ class APT_HIDDEN debSLTypeDebFile : public pkgSourceList::Type		/*{{{*/
 
    bool CreateItem(std::vector<metaIndex *> &List, std::string const &URI,
 		   std::string const &/*Dist*/, std::string const &/*Section*/,
-		   std::map<std::string, std::string> const &/*Options*/) const
+		   std::map<std::string, std::string> const &/*Options*/) const APT_OVERRIDE
    {
       metaIndex *mi = new debDebFileMetaIndex(URI);
       List.push_back(mi);
diff --git a/apt-pkg/deb/debmetaindex.h b/apt-pkg/deb/debmetaindex.h
index bf5b7c1ce..8c13237cb 100644
--- a/apt-pkg/deb/debmetaindex.h
+++ b/apt-pkg/deb/debmetaindex.h
@@ -39,18 +39,18 @@ class APT_HIDDEN debReleaseIndex : public metaIndex
    debReleaseIndex(std::string const &URI, std::string const &Dist, bool const Trusted);
    virtual ~debReleaseIndex();
 
-   virtual std::string ArchiveURI(std::string const &File) const {return URI + File;};
-   virtual bool GetIndexes(pkgAcquire *Owner, bool const &GetAll=false);
-   virtual std::vector<IndexTarget> GetIndexTargets() const;
+   virtual std::string ArchiveURI(std::string const &File) const APT_OVERRIDE {return URI + File;};
+   virtual bool GetIndexes(pkgAcquire *Owner, bool const &GetAll=false) APT_OVERRIDE;
+   virtual std::vector<IndexTarget> GetIndexTargets() const APT_OVERRIDE;
 
-   virtual std::string Describe() const;
-   virtual pkgCache::RlsFileIterator FindInCache(pkgCache &Cache, bool const ModifyCheck) const;
-   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const;
+   virtual std::string Describe() const APT_OVERRIDE;
+   virtual pkgCache::RlsFileIterator FindInCache(pkgCache &Cache, bool const ModifyCheck) const APT_OVERRIDE;
+   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const APT_OVERRIDE;
 
-   virtual bool Load(std::string const &Filename, std::string * const ErrorText);
-   virtual metaIndex * UnloadedClone() const;
+   virtual bool Load(std::string const &Filename, std::string * const ErrorText) APT_OVERRIDE;
+   virtual metaIndex * UnloadedClone() const APT_OVERRIDE;
 
-   virtual std::vector <pkgIndexFile *> *GetIndexFiles();
+   virtual std::vector <pkgIndexFile *> *GetIndexFiles() APT_OVERRIDE;
 
    bool SetTrusted(TriState const Trusted);
    bool SetCheckValidUntil(TriState const Trusted);
@@ -58,7 +58,7 @@ class APT_HIDDEN debReleaseIndex : public metaIndex
    bool SetValidUntilMax(time_t const Valid);
    bool SetSignedBy(std::string const &SignedBy);
 
-   virtual bool IsTrusted() const;
+   virtual bool IsTrusted() const APT_OVERRIDE;
 
    void AddComponent(bool const isSrc, std::string const &Name,
 	 std::vector<std::string> const &Targets,
@@ -73,29 +73,29 @@ private:
    std::string DebFile;
    debDebPkgFileIndex *DebIndex;
 public:
-   virtual std::string ArchiveURI(std::string const& /*File*/) const {
+   virtual std::string ArchiveURI(std::string const& /*File*/) const APT_OVERRIDE {
       return DebFile;
    }
-   virtual bool GetIndexes(pkgAcquire* /*Owner*/, const bool& /*GetAll=false*/) {
+   virtual bool GetIndexes(pkgAcquire* /*Owner*/, const bool& /*GetAll=false*/) APT_OVERRIDE {
       return true;
    }
-   virtual std::vector<IndexTarget> GetIndexTargets() const {
+   virtual std::vector<IndexTarget> GetIndexTargets() const APT_OVERRIDE {
       return std::vector<IndexTarget>();
    }
-   virtual std::vector<pkgIndexFile *> *GetIndexFiles() {
+   virtual std::vector<pkgIndexFile *> *GetIndexFiles() APT_OVERRIDE {
       return Indexes;
    }
-   virtual bool IsTrusted() const {
+   virtual bool IsTrusted() const APT_OVERRIDE {
       return true;
    }
-   virtual bool Load(std::string const &, std::string * const ErrorText)
+   virtual bool Load(std::string const &, std::string * const ErrorText) APT_OVERRIDE
    {
       LoadedSuccessfully = TRI_NO;
       if (ErrorText != NULL)
 	 strprintf(*ErrorText, "Unparseable metaindex as it represents the standalone deb file %s", DebFile.c_str());
       return false;
    }
-   virtual metaIndex * UnloadedClone() const
+   virtual metaIndex * UnloadedClone() const APT_OVERRIDE
    {
       return NULL;
    }
diff --git a/apt-pkg/deb/debrecords.h b/apt-pkg/deb/debrecords.h
index 4d0b713d4..7fc82a88d 100644
--- a/apt-pkg/deb/debrecords.h
+++ b/apt-pkg/deb/debrecords.h
@@ -33,23 +33,23 @@ class APT_HIDDEN debRecordParserBase : public pkgRecords::Parser
 
  public:
    // These refer to the archive file for the Version
-   virtual std::string FileName();
-   virtual std::string SourcePkg();
-   virtual std::string SourceVer();
+   virtual std::string FileName() APT_OVERRIDE;
+   virtual std::string SourcePkg() APT_OVERRIDE;
+   virtual std::string SourceVer() APT_OVERRIDE;
 
-   virtual HashStringList Hashes() const;
+   virtual HashStringList Hashes() const APT_OVERRIDE;
 
    // These are some general stats about the package
-   virtual std::string Maintainer();
-   virtual std::string ShortDesc(std::string const &lang);
-   virtual std::string LongDesc(std::string const &lang);
-   virtual std::string Name();
-   virtual std::string Homepage();
+   virtual std::string Maintainer() APT_OVERRIDE;
+   virtual std::string ShortDesc(std::string const &lang) APT_OVERRIDE;
+   virtual std::string LongDesc(std::string const &lang) APT_OVERRIDE;
+   virtual std::string Name() APT_OVERRIDE;
+   virtual std::string Homepage() APT_OVERRIDE;
 
    // An arbitrary custom field
-   virtual std::string RecordField(const char *fieldName);
+   virtual std::string RecordField(const char *fieldName) APT_OVERRIDE;
 
-   virtual void GetRec(const char *&Start,const char *&Stop);
+   virtual void GetRec(const char *&Start,const char *&Stop) APT_OVERRIDE;
 
    debRecordParserBase();
    virtual ~debRecordParserBase();
@@ -62,8 +62,8 @@ class APT_HIDDEN debRecordParser : public debRecordParserBase
    FileFd File;
    pkgTagFile Tags;
 
-   virtual bool Jump(pkgCache::VerFileIterator const &Ver);
-   virtual bool Jump(pkgCache::DescFileIterator const &Desc);
+   virtual bool Jump(pkgCache::VerFileIterator const &Ver) APT_OVERRIDE;
+   virtual bool Jump(pkgCache::DescFileIterator const &Desc) APT_OVERRIDE;
 
  public:
    debRecordParser(std::string FileName,pkgCache &Cache);
@@ -80,11 +80,11 @@ class APT_HIDDEN debDebFileRecordParser : public debRecordParserBase
    APT_HIDDEN bool LoadContent();
  protected:
    // single file files, so no jumping whatsoever
-   bool Jump(pkgCache::VerFileIterator const &);
-   bool Jump(pkgCache::DescFileIterator const &);
+   bool Jump(pkgCache::VerFileIterator const &) APT_OVERRIDE;
+   bool Jump(pkgCache::DescFileIterator const &) APT_OVERRIDE;
 
  public:
-   virtual std::string FileName();
+   virtual std::string FileName() APT_OVERRIDE;
 
    debDebFileRecordParser(std::string FileName);
    virtual ~debDebFileRecordParser();
diff --git a/apt-pkg/deb/debsrcrecords.h b/apt-pkg/deb/debsrcrecords.h
index 64b07a1ec..89134af5f 100644
--- a/apt-pkg/deb/debsrcrecords.h
+++ b/apt-pkg/deb/debsrcrecords.h
@@ -36,24 +36,24 @@ class APT_HIDDEN debSrcRecordParser : public pkgSrcRecords::Parser
    
    public:
 
-   virtual bool Restart() {return Jump(0);};
-   virtual bool Step() {iOffset = Tags.Offset(); return Tags.Step(Sect);};
-   virtual bool Jump(unsigned long const &Off) {iOffset = Off; return Tags.Jump(Sect,Off);};
+   virtual bool Restart() APT_OVERRIDE {return Jump(0);};
+   virtual bool Step() APT_OVERRIDE {iOffset = Tags.Offset(); return Tags.Step(Sect);};
+   virtual bool Jump(unsigned long const &Off) APT_OVERRIDE {iOffset = Off; return Tags.Jump(Sect,Off);};
 
-   virtual std::string Package() const {return Sect.FindS("Package");};
-   virtual std::string Version() const {return Sect.FindS("Version");};
-   virtual std::string Maintainer() const {return Sect.FindS("Maintainer");};
-   virtual std::string Section() const {return Sect.FindS("Section");};
-   virtual const char **Binaries();
-   virtual bool BuildDepends(std::vector<BuildDepRec> &BuildDeps, bool const &ArchOnly, bool const &StripMultiArch = true);
-   virtual unsigned long Offset() {return iOffset;};
-   virtual std::string AsStr() 
+   virtual std::string Package() const APT_OVERRIDE {return Sect.FindS("Package");};
+   virtual std::string Version() const APT_OVERRIDE {return Sect.FindS("Version");};
+   virtual std::string Maintainer() const APT_OVERRIDE {return Sect.FindS("Maintainer");};
+   virtual std::string Section() const APT_OVERRIDE {return Sect.FindS("Section");};
+   virtual const char **Binaries() APT_OVERRIDE;
+   virtual bool BuildDepends(std::vector<BuildDepRec> &BuildDeps, bool const &ArchOnly, bool const &StripMultiArch = true) APT_OVERRIDE;
+   virtual unsigned long Offset() APT_OVERRIDE {return iOffset;};
+   virtual std::string AsStr() APT_OVERRIDE 
    {
       const char *Start=0,*Stop=0;
       Sect.GetSection(Start,Stop);
       return std::string(Start,Stop);
    };
-   virtual bool Files(std::vector<pkgSrcRecords::File> &F);
+   virtual bool Files(std::vector<pkgSrcRecords::File> &F) APT_OVERRIDE;
    bool Files2(std::vector<pkgSrcRecords::File2> &F);
 
    debSrcRecordParser(std::string const &File,pkgIndexFile const *Index);
diff --git a/apt-pkg/deb/debsystem.h b/apt-pkg/deb/debsystem.h
index e59bbebed..aed77520e 100644
--- a/apt-pkg/deb/debsystem.h
+++ b/apt-pkg/deb/debsystem.h
@@ -33,15 +33,15 @@ class debSystem : public pkgSystem
 
    public:
 
-   virtual bool Lock();
-   virtual bool UnLock(bool NoErrors = false);   
-   virtual pkgPackageManager *CreatePM(pkgDepCache *Cache) const;
-   virtual bool Initialize(Configuration &Cnf);
-   virtual bool ArchiveSupported(const char *Type);
-   virtual signed Score(Configuration const &Cnf);
-   virtual bool AddStatusFiles(std::vector<pkgIndexFile *> &List);
+   virtual bool Lock() APT_OVERRIDE;
+   virtual bool UnLock(bool NoErrors = false) APT_OVERRIDE;   
+   virtual pkgPackageManager *CreatePM(pkgDepCache *Cache) const APT_OVERRIDE;
+   virtual bool Initialize(Configuration &Cnf) APT_OVERRIDE;
+   virtual bool ArchiveSupported(const char *Type) APT_OVERRIDE;
+   virtual signed Score(Configuration const &Cnf) APT_OVERRIDE;
+   virtual bool AddStatusFiles(std::vector<pkgIndexFile *> &List) APT_OVERRIDE;
    virtual bool FindIndex(pkgCache::PkgFileIterator File,
-			  pkgIndexFile *&Found) const;
+			  pkgIndexFile *&Found) const APT_OVERRIDE;
 
    debSystem();
    virtual ~debSystem();
diff --git a/apt-pkg/deb/debversion.h b/apt-pkg/deb/debversion.h
index 7befe6372..6d7eca7c1 100644
--- a/apt-pkg/deb/debversion.h
+++ b/apt-pkg/deb/debversion.h
@@ -27,11 +27,11 @@ class debVersioningSystem : public pkgVersioningSystem
 			  const char *B,const char *Bend) APT_PURE;
    virtual bool CheckDep(const char *PkgVer,int Op,const char *DepVer) APT_PURE;
    virtual APT_PURE int DoCmpReleaseVer(const char *A,const char *Aend,
-			     const char *B,const char *Bend)
+			     const char *B,const char *Bend) APT_OVERRIDE
    {
       return DoCmpVersion(A,Aend,B,Bend);
    }
-   virtual std::string UpstreamVersion(const char *A);
+   virtual std::string UpstreamVersion(const char *A) APT_OVERRIDE;
 
    debVersioningSystem();
 };
diff --git a/apt-pkg/deb/dpkgpm.h b/apt-pkg/deb/dpkgpm.h
index a1b36c6c0..82c1bef5d 100644
--- a/apt-pkg/deb/dpkgpm.h
+++ b/apt-pkg/deb/dpkgpm.h
@@ -120,14 +120,14 @@ class pkgDPkgPM : public pkgPackageManager
    void ProcessDpkgStatusLine(char *line);
 
    // The Actuall installation implementation
-   virtual bool Install(PkgIterator Pkg,std::string File);
-   virtual bool Configure(PkgIterator Pkg);
-   virtual bool Remove(PkgIterator Pkg,bool Purge = false);
+   virtual bool Install(PkgIterator Pkg,std::string File) APT_OVERRIDE;
+   virtual bool Configure(PkgIterator Pkg) APT_OVERRIDE;
+   virtual bool Remove(PkgIterator Pkg,bool Purge = false) APT_OVERRIDE;
 
-   virtual bool Go(APT::Progress::PackageManager *progress);
-   virtual bool Go(int StatusFd=-1);
+   virtual bool Go(APT::Progress::PackageManager *progress) APT_OVERRIDE;
+   virtual bool Go(int StatusFd=-1) APT_OVERRIDE;
 
-   virtual void Reset();
+   virtual void Reset() APT_OVERRIDE;
    
    public:
 
diff --git a/apt-pkg/depcache.h b/apt-pkg/depcache.h
index 40a2fcaab..2c3304ba8 100644
--- a/apt-pkg/depcache.h
+++ b/apt-pkg/depcache.h
@@ -204,7 +204,7 @@ class pkgDepCache : protected pkgCache::Namespace
      DefaultRootSetFunc() : Configuration::MatchAgainstConfig("APT::NeverAutoRemove") {};
      virtual ~DefaultRootSetFunc() {};
 
-     bool InRootSet(const pkgCache::PkgIterator &pkg) { return pkg.end() == false && Match(pkg.Name()); };
+     bool InRootSet(const pkgCache::PkgIterator &pkg) APT_OVERRIDE { return pkg.end() == false && Match(pkg.Name()); };
    };
 
    struct StateCache
diff --git a/apt-pkg/edsp/edspindexfile.cc b/apt-pkg/edsp/edspindexfile.cc
index 3bffc27e9..649d94b5d 100644
--- a/apt-pkg/edsp/edspindexfile.cc
+++ b/apt-pkg/edsp/edspindexfile.cc
@@ -67,7 +67,7 @@ bool edspIndex::Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const
 class APT_HIDDEN edspIFType: public pkgIndexFile::Type
 {
    public:
-   virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator) const
+   virtual pkgRecords::Parser *CreatePkgParser(pkgCache::PkgFileIterator) const APT_OVERRIDE
    {
       // we don't have a record parser for this type as the file is not presistent
       return NULL;
diff --git a/apt-pkg/edsp/edspindexfile.h b/apt-pkg/edsp/edspindexfile.h
index 265a016c5..b2a510f14 100644
--- a/apt-pkg/edsp/edspindexfile.h
+++ b/apt-pkg/edsp/edspindexfile.h
@@ -27,7 +27,7 @@ class APT_HIDDEN edspIndex : public debStatusIndex
 
    virtual const Type *GetType() const APT_CONST;
 
-   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const;
+   virtual bool Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const APT_OVERRIDE;
 
    edspIndex(std::string File);
    virtual ~edspIndex();
diff --git a/apt-pkg/edsp/edsplistparser.h b/apt-pkg/edsp/edsplistparser.h
index 98dde4bf5..2a09e8c47 100644
--- a/apt-pkg/edsp/edsplistparser.h
+++ b/apt-pkg/edsp/edsplistparser.h
@@ -29,11 +29,11 @@ class APT_HIDDEN edspListParser : public debListParser
 {
    void * const d;
    public:
-   virtual bool NewVersion(pkgCache::VerIterator &Ver);
+   virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
    virtual std::string Description();
    virtual std::string DescriptionLanguage();
-   virtual MD5SumValue Description_md5();
-   virtual unsigned short VersionHash();
+   virtual MD5SumValue Description_md5() APT_OVERRIDE;
+   virtual unsigned short VersionHash() APT_OVERRIDE;
 
    bool LoadReleaseInfo(pkgCache::RlsFileIterator &FileI,FileFd &File,
 			std::string const &section);
@@ -42,7 +42,7 @@ class APT_HIDDEN edspListParser : public debListParser
    virtual ~edspListParser();
 
    protected:
-   virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
+   virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver) APT_OVERRIDE;
 
 };
 
diff --git a/apt-pkg/edsp/edspsystem.h b/apt-pkg/edsp/edspsystem.h
index 156b02bb5..ec42bef75 100644
--- a/apt-pkg/edsp/edspsystem.h
+++ b/apt-pkg/edsp/edspsystem.h
@@ -16,6 +16,8 @@
 
 #include <vector>
 
+#include <apt-pkg/macros.h>
+
 class Configuration;
 class pkgDepCache;
 class pkgIndexFile;
@@ -31,15 +33,15 @@ class APT_HIDDEN edspSystem : public pkgSystem
 
    public:
 
-   virtual bool Lock() APT_CONST;
-   virtual bool UnLock(bool NoErrors = false) APT_CONST;
-   virtual pkgPackageManager *CreatePM(pkgDepCache *Cache) const APT_CONST;
-   virtual bool Initialize(Configuration &Cnf);
-   virtual bool ArchiveSupported(const char *Type) APT_CONST;
-   virtual signed Score(Configuration const &Cnf);
-   virtual bool AddStatusFiles(std::vector<pkgIndexFile *> &List);
+   virtual bool Lock() APT_OVERRIDE APT_CONST;
+   virtual bool UnLock(bool NoErrors = false) APT_OVERRIDE APT_CONST;
+   virtual pkgPackageManager *CreatePM(pkgDepCache *Cache) const APT_OVERRIDE APT_CONST;
+   virtual bool Initialize(Configuration &Cnf) APT_OVERRIDE;
+   virtual bool ArchiveSupported(const char *Type) APT_OVERRIDE APT_CONST;
+   virtual signed Score(Configuration const &Cnf) APT_OVERRIDE;
+   virtual bool AddStatusFiles(std::vector<pkgIndexFile *> &List) APT_OVERRIDE;
    virtual bool FindIndex(pkgCache::PkgFileIterator File,
-			  pkgIndexFile *&Found) const;
+			  pkgIndexFile *&Found) const APT_OVERRIDE;
 
    edspSystem();
    virtual ~edspSystem();
diff --git a/apt-pkg/indexcopy.h b/apt-pkg/indexcopy.h
index 6eecad028..316672e1d 100644
--- a/apt-pkg/indexcopy.h
+++ b/apt-pkg/indexcopy.h
@@ -62,10 +62,10 @@ class PackageCopy : public IndexCopy					/*{{{*/
    void * const d;
    protected:
 
-   virtual bool GetFile(std::string &Filename,unsigned long long &Size);
-   virtual bool RewriteEntry(FileFd &Target, std::string const &File);
-   virtual const char *GetFileName() {return "Packages";};
-   virtual const char *Type() {return "Package";};
+   virtual bool GetFile(std::string &Filename,unsigned long long &Size) APT_OVERRIDE;
+   virtual bool RewriteEntry(FileFd &Target, std::string const &File) APT_OVERRIDE;
+   virtual const char *GetFileName() APT_OVERRIDE {return "Packages";};
+   virtual const char *Type() APT_OVERRIDE {return "Package";};
 
    public:
    PackageCopy();
@@ -77,10 +77,10 @@ class SourceCopy : public IndexCopy					/*{{{*/
    void * const d;
    protected:
    
-   virtual bool GetFile(std::string &Filename,unsigned long long &Size);
-   virtual bool RewriteEntry(FileFd &Target, std::string const &File);
-   virtual const char *GetFileName() {return "Sources";};
-   virtual const char *Type() {return "Source";};
+   virtual bool GetFile(std::string &Filename,unsigned long long &Size) APT_OVERRIDE;
+   virtual bool RewriteEntry(FileFd &Target, std::string const &File) APT_OVERRIDE;
+   virtual const char *GetFileName() APT_OVERRIDE {return "Sources";};
+   virtual const char *Type() APT_OVERRIDE {return "Source";};
 
    public:
    SourceCopy();
diff --git a/apt-pkg/indexfile.h b/apt-pkg/indexfile.h
index 44d39110d..5be7794bf 100644
--- a/apt-pkg/indexfile.h
+++ b/apt-pkg/indexfile.h
@@ -160,10 +160,10 @@ protected:
    std::string IndexFileName() const;
 
 public:
-   virtual std::string ArchiveURI(std::string File) const;
-   virtual std::string Describe(bool Short = false) const;
-   virtual bool Exists() const;
-   virtual unsigned long Size() const;
+   virtual std::string ArchiveURI(std::string File) const APT_OVERRIDE;
+   virtual std::string Describe(bool Short = false) const APT_OVERRIDE;
+   virtual bool Exists() const APT_OVERRIDE;
+   virtual unsigned long Size() const APT_OVERRIDE;
 
    pkgIndexTargetFile(IndexTarget const &Target, bool const Trusted);
    virtual ~pkgIndexTargetFile();
diff --git a/apt-pkg/install-progress.h b/apt-pkg/install-progress.h
index 07fc15fd8..ee03ac217 100644
--- a/apt-pkg/install-progress.h
+++ b/apt-pkg/install-progress.h
@@ -72,21 +72,21 @@ namespace Progress {
     explicit PackageManagerProgressFd(int progress_fd);
     virtual ~PackageManagerProgressFd();
 
-    virtual void StartDpkg();
-    virtual void Stop();
+    virtual void StartDpkg() APT_OVERRIDE;
+    virtual void Stop() APT_OVERRIDE;
 
     virtual bool StatusChanged(std::string PackageName,
                                unsigned int StepsDone,
                                unsigned int TotalSteps,
-                               std::string HumanReadableAction);
+                               std::string HumanReadableAction) APT_OVERRIDE;
     virtual void Error(std::string PackageName,
                        unsigned int StepsDone,
                        unsigned int TotalSteps,
-                          std::string ErrorMessage);
+                          std::string ErrorMessage) APT_OVERRIDE;
     virtual void ConffilePrompt(std::string PackageName,
                                 unsigned int StepsDone,
                                 unsigned int TotalSteps,
-                                   std::string ConfMessage);
+                                   std::string ConfMessage) APT_OVERRIDE;
 
  };
 
@@ -103,21 +103,21 @@ namespace Progress {
     explicit PackageManagerProgressDeb822Fd(int progress_fd);
     virtual ~PackageManagerProgressDeb822Fd();
 
-    virtual void StartDpkg();
-    virtual void Stop();
+    virtual void StartDpkg() APT_OVERRIDE;
+    virtual void Stop() APT_OVERRIDE;
 
     virtual bool StatusChanged(std::string PackageName,
                                unsigned int StepsDone,
                                unsigned int TotalSteps,
-                               std::string HumanReadableAction);
+                               std::string HumanReadableAction) APT_OVERRIDE;
     virtual void Error(std::string PackageName,
                        unsigned int StepsDone,
                        unsigned int TotalSteps,
-                          std::string ErrorMessage);
+                          std::string ErrorMessage) APT_OVERRIDE;
     virtual void ConffilePrompt(std::string PackageName,
                                 unsigned int StepsDone,
                                 unsigned int TotalSteps,
-                                   std::string ConfMessage);
+                                   std::string ConfMessage) APT_OVERRIDE;
  };
 
  class PackageManagerFancy : public PackageManager
@@ -144,12 +144,12 @@ namespace Progress {
  public:
     PackageManagerFancy();
     virtual ~PackageManagerFancy();
-    virtual void Start(int child_pty=-1);
-    virtual void Stop();
+    virtual void Start(int child_pty=-1) APT_OVERRIDE;
+    virtual void Stop() APT_OVERRIDE;
     virtual bool StatusChanged(std::string PackageName,
                                unsigned int StepsDone,
                                unsigned int TotalSteps,
-                               std::string HumanReadableAction);
+                               std::string HumanReadableAction) APT_OVERRIDE;
 
     // return a progress bar of the given size for the given progress 
     // percent between 0.0 and 1.0 in the form "[####...]"
@@ -163,7 +163,7 @@ namespace Progress {
     virtual bool StatusChanged(std::string PackageName,
                                unsigned int StepsDone,
                                unsigned int TotalSteps,
-                               std::string HumanReadableAction);
+                               std::string HumanReadableAction) APT_OVERRIDE;
 
     PackageManagerText();
     virtual ~PackageManagerText();
diff --git a/apt-pkg/policy.h b/apt-pkg/policy.h
index 58b062a7b..b3e1ec6b1 100644
--- a/apt-pkg/policy.h
+++ b/apt-pkg/policy.h
@@ -78,10 +78,10 @@ class pkgPolicy : public pkgDepCache::Policy
    pkgCache::VerIterator GetMatch(pkgCache::PkgIterator const &Pkg);
 
    // Things for the cache interface.
-   virtual pkgCache::VerIterator GetCandidateVer(pkgCache::PkgIterator const &Pkg);
-   virtual signed short GetPriority(pkgCache::PkgIterator const &Pkg);
+   virtual pkgCache::VerIterator GetCandidateVer(pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
+   virtual signed short GetPriority(pkgCache::PkgIterator const &Pkg) APT_OVERRIDE;
    virtual signed short GetPriority(pkgCache::VerIterator const &Pkg);
-   virtual signed short GetPriority(pkgCache::PkgFileIterator const &File);
+   virtual signed short GetPriority(pkgCache::PkgFileIterator const &File) APT_OVERRIDE;
 
    bool InitDefaults();
    
diff --git a/apt-pkg/tagfile.h b/apt-pkg/tagfile.h
index 81fff89f0..77a84c832 100644
--- a/apt-pkg/tagfile.h
+++ b/apt-pkg/tagfile.h
@@ -147,7 +147,7 @@ class pkgTagSection
    for being a bit slower to allow comments and new lines all over the place */
 class pkgUserTagSection : public pkgTagSection
 {
-   virtual void TrimRecord(bool BeforeRecord, const char* &End);
+   virtual void TrimRecord(bool BeforeRecord, const char* &End) APT_OVERRIDE;
 };
 
 class pkgTagFilePrivate;