merged bundle from david

24 files changed, 248 insertions, 165 deletions

diff --git a/apt-inst/extract.cc b/apt-inst/extract.cc
index 29e16302..2c95fba9 100644
--- a/apt-inst/extract.cc
+++ b/apt-inst/extract.cc
@@ -81,8 +81,6 @@ pkgExtract::pkgExtract(pkgFLCache &FLCache,pkgCache::VerIterator Ver) :
 /* This performs the setup for the extraction.. */
 bool pkgExtract::DoItem(Item &Itm,int &Fd)
 {
-   char Temp[sizeof(FileName)];
-   
    /* Strip any leading/trailing /s from the filename, then copy it to the
       temp buffer and re-apply the leading / We use a class variable
       to store the new filename for use by the three extraction funcs */
@@ -183,6 +181,7 @@ bool pkgExtract::DoItem(Item &Itm,int &Fd)
       // See if we can recover the backup file
       if (Nde.end() == false)
       {
+	 char Temp[sizeof(FileName)];
 	 snprintf(Temp,sizeof(Temp),"%s.%s",Itm.Name,TempExt);
 	 if (rename(Temp,Itm.Name) != 0 && errno != ENOENT)
 	    return _error->Errno("rename",_("Failed to rename %s to %s"),
diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index 9b786211..d1273374 100644
--- a/apt-pkg/acquire-item.cc
+++ b/apt-pkg/acquire-item.cc
@@ -560,7 +560,7 @@ pkgAcqIndexDiffs::pkgAcqIndexDiffs(pkgAcquire *Owner,
    Desc.Owner = this;
    Desc.ShortDesc = ShortDesc;
 
-   if(available_patches.size() == 0) 
+   if(available_patches.empty() == true)
    {
       // we are done (yeah!)
       Finish(true);
@@ -1649,7 +1649,7 @@ pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
       assumption here that all the available sources for this version share
       the same extension.. */
    // Skip not source sources, they do not have file fields.
-   for (; Vf.end() == false; Vf++)
+   for (; Vf.end() == false; ++Vf)
    {
       if ((Vf.File()->Flags & pkgCache::Flag::NotSource) != 0)
 	 continue;
diff --git a/apt-pkg/aptconfiguration.cc b/apt-pkg/aptconfiguration.cc
index 65377568..37c84658 100644
--- a/apt-pkg/aptconfiguration.cc
+++ b/apt-pkg/aptconfiguration.cc
@@ -401,8 +401,8 @@ std::vector<std::string> const Configuration::getArchitectures(bool const &Cache
 		close(external[1]);
 
 		FILE *dpkg = fdopen(external[0], "r");
-		char buf[1024];
 		if(dpkg != NULL) {
+			char buf[1024];
 			while (fgets(buf, sizeof(buf), dpkg) != NULL) {
 				char* arch = strtok(buf, " ");
 				while (arch != NULL) {
diff --git a/apt-pkg/cachefilter.cc b/apt-pkg/cachefilter.cc
index 58cc812b..64cde41d 100644
--- a/apt-pkg/cachefilter.cc
+++ b/apt-pkg/cachefilter.cc
@@ -71,8 +71,7 @@ static std::string CompleteArch(std::string const &arch) {
 }
 									/*}}}*/
 PackageArchitectureMatchesSpecification::PackageArchitectureMatchesSpecification(std::string const &pattern, bool const isPattern) :/*{{{*/
-					literal(pattern), isPattern(isPattern), d(NULL) {
-	complete = CompleteArch(pattern);
+					literal(pattern), complete(CompleteArch(pattern)), isPattern(isPattern), d(NULL) {
 }
 									/*}}}*/
 bool PackageArchitectureMatchesSpecification::operator() (char const * const &arch) {/*{{{*/
diff --git a/apt-pkg/cacheiterators.h b/apt-pkg/cacheiterators.h
index dcd35311..179a0e96 100644
--- a/apt-pkg/cacheiterators.h
+++ b/apt-pkg/cacheiterators.h
@@ -286,6 +286,8 @@ class pkgCache::DepIterator : public Iterator<Dependency, DepIterator> {
 	bool IsIgnorable(PrvIterator const &Prv) const;
 	bool IsIgnorable(PkgIterator const &Pkg) const;
 	bool IsMultiArchImplicit() const;
+	bool IsSatisfied(VerIterator const &Ver) const;
+	bool IsSatisfied(PrvIterator const &Prv) const;
 	void GlobOr(DepIterator &Start,DepIterator &End);
 	Version **AllTargets() const;
 	bool SmartTargetPkg(PkgIterator &Result) const;
diff --git a/apt-pkg/contrib/configuration.cc b/apt-pkg/contrib/configuration.cc
index 4de17e3e..808a708a 100644
--- a/apt-pkg/contrib/configuration.cc
+++ b/apt-pkg/contrib/configuration.cc
@@ -958,7 +958,7 @@ Configuration::MatchAgainstConfig::MatchAgainstConfig(char const * Config)
 	 continue;
       }
    }
-   if (strings.size() == 0)
+   if (strings.empty() == true)
       patterns.push_back(NULL);
 }
 									/*}}}*/
diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc
index 90e49cbf..f18e1700 100644
--- a/apt-pkg/contrib/fileutl.cc
+++ b/apt-pkg/contrib/fileutl.cc
@@ -387,7 +387,7 @@ std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> c
 
    std::vector<string> List;
 
-   if (DirectoryExists(Dir.c_str()) == false)
+   if (DirectoryExists(Dir) == false)
    {
       _error->Error(_("List of files can't be created as '%s' is not a directory"), Dir.c_str());
       return List;
@@ -413,14 +413,14 @@ std::vector<string> GetListOfFilesInDir(string const &Dir, std::vector<string> c
       if (Ent->d_type != DT_REG)
 #endif
       {
-	 if (RealFileExists(File.c_str()) == false)
+	 if (RealFileExists(File) == false)
 	 {
 	    // do not show ignoration warnings for directories
 	    if (
 #ifdef _DIRENT_HAVE_D_TYPE
 		Ent->d_type == DT_DIR ||
 #endif
-		DirectoryExists(File.c_str()) == true)
+		DirectoryExists(File) == true)
 	       continue;
 	    if (SilentIgnore.Match(Ent->d_name) == false)
 	       _error->Notice(_("Ignoring '%s' in directory '%s' as it is not a regular file"), Ent->d_name, Dir.c_str());
@@ -501,7 +501,7 @@ std::vector<string> GetListOfFilesInDir(string const &Dir, bool SortList)
 
    std::vector<string> List;
 
-   if (DirectoryExists(Dir.c_str()) == false)
+   if (DirectoryExists(Dir) == false)
    {
       _error->Error(_("List of files can't be created as '%s' is not a directory"), Dir.c_str());
       return List;
@@ -526,7 +526,7 @@ std::vector<string> GetListOfFilesInDir(string const &Dir, bool SortList)
       if (Ent->d_type != DT_REG)
 #endif
       {
-	 if (RealFileExists(File.c_str()) == false)
+	 if (RealFileExists(File) == false)
 	 {
 	    if (Debug == true)
 	       std::clog << "Bad file: " << Ent->d_name << " → it is not a real file" << std::endl;
diff --git a/apt-pkg/contrib/netrc.cc b/apt-pkg/contrib/netrc.cc
index 0a902f12..de95aa4a 100644
--- a/apt-pkg/contrib/netrc.cc
+++ b/apt-pkg/contrib/netrc.cc
@@ -50,14 +50,10 @@ static int parsenetrc_string (char *host, std::string &login, std::string &passw
   FILE *file;
   int retcode = 1;
   int specific_login = (login.empty() == false);
-  char *home = NULL;
   bool netrc_alloc = false;
 
-  int state_our_login = false;  /* With specific_login,
-                                   found *our* login name */
-
   if (!netrcfile) {
-    home = getenv ("HOME"); /* portable environment reader */
+    char const * home = getenv ("HOME"); /* portable environment reader */
 
     if (!home) {
       struct passwd *pw;
@@ -86,6 +82,8 @@ static int parsenetrc_string (char *host, std::string &login, std::string &passw
     int state = NOTHING;
     char state_login = 0;        /* Found a login keyword */
     char state_password = 0;     /* Found a password keyword */
+    int state_our_login = false;  /* With specific_login,
+				     found *our* login name */
 
     while (!done && getline(&netrcbuffer, &netrcbuffer_size, file) != -1) {
       tok = strtok_r (netrcbuffer, " \t\n", &tok_buf);
diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index 9726138a..03b98e93 100644
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -1252,7 +1252,7 @@ string StripEpoch(const string &VerStr)
       return VerStr;
    return VerStr.substr(i+1);
 }
-
+									/*}}}*/
 // tolower_ascii - tolower() function that ignores the locale		/*{{{*/
 // ---------------------------------------------------------------------
 /* This little function is the most called method we have and tries
@@ -1290,14 +1290,14 @@ bool CheckDomainList(const string &Host,const string &List)
    return false;
 }
 									/*}}}*/
-// DeEscapeString - unescape (\0XX and \xXX) from a string      	/*{{{*/
+// DeEscapeString - unescape (\0XX and \xXX) from a string		/*{{{*/
 // ---------------------------------------------------------------------
 /* */
 string DeEscapeString(const string &input)
 {
    char tmp[3];
-   string::const_iterator it, escape_start;
-   string output, octal, hex;
+   string::const_iterator it;
+   string output;
    for (it = input.begin(); it != input.end(); ++it)
    {
       // just copy non-escape chars
diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc
index d84a6a26..db86bd69 100644
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -284,7 +284,7 @@ unsigned short debListParser::VersionHash()
                             "Replaces",0};
    unsigned long Result = INIT_FCS;
    char S[1024];
-   for (const char **I = Sections; *I != 0; I++)
+   for (const char * const *I = Sections; *I != 0; ++I)
    {
       const char *Start;
       const char *End;
@@ -295,13 +295,13 @@ unsigned short debListParser::VersionHash()
          of certain fields. dpkg also has the rather interesting notion of
          reformatting depends operators < -> <= */
       char *J = S;
-      for (; Start != End; Start++)
+      for (; Start != End; ++Start)
       {
-	 if (isspace(*Start) == 0)
-	    *J++ = tolower_ascii(*Start);
-	 if (*Start == '<' && Start[1] != '<' && Start[1] != '=')
-	    *J++ = '=';
-	 if (*Start == '>' && Start[1] != '>' && Start[1] != '=')
+	 if (isspace(*Start) != 0)
+	    continue;
+	 *J++ = tolower_ascii(*Start);
+
+	 if ((*Start == '<' || *Start == '>') && Start[1] != *Start && Start[1] != '=')
 	    *J++ = '=';
       }
 
diff --git a/apt-pkg/deb/debversion.cc b/apt-pkg/deb/debversion.cc
index a02699a4..14056126 100644
--- a/apt-pkg/deb/debversion.cc
+++ b/apt-pkg/deb/debversion.cc
@@ -215,10 +215,15 @@ bool debVersioningSystem::CheckDep(const char *PkgVer,
       return true;
    if (PkgVer == 0 || PkgVer[0] == 0)
       return false;
-   
+   Op &= 0x0F;
+
+   // fast track for (equal) strings [by location] which are by definition equal versions
+   if (PkgVer == DepVer)
+      return Op == pkgCache::Dep::Equals || Op == pkgCache::Dep::LessEq || Op == pkgCache::Dep::GreaterEq;
+
    // Perform the actual comparision.
-   int Res = CmpVersion(PkgVer,DepVer);
-   switch (Op & 0x0F)
+   int const Res = CmpVersion(PkgVer, DepVer);
+   switch (Op)
    {
       case pkgCache::Dep::LessEq:
       if (Res <= 0)
diff --git a/apt-pkg/deb/dpkgpm.cc b/apt-pkg/deb/dpkgpm.cc
index 6cb8bc6b..3bc31dc3 100644
--- a/apt-pkg/deb/dpkgpm.cc
+++ b/apt-pkg/deb/dpkgpm.cc
@@ -147,11 +147,11 @@ static
 pkgCache::VerIterator FindNowVersion(const pkgCache::PkgIterator &Pkg)
 {
    pkgCache::VerIterator Ver;
-   for (Ver = Pkg.VersionList(); Ver.end() == false; Ver++)
+   for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
    {
       pkgCache::VerFileIterator Vf = Ver.FileList();
       pkgCache::PkgFileIterator F = Vf.File();
-      for (F = Vf.File(); F.end() == false; F++)
+      for (F = Vf.File(); F.end() == false; ++F)
       {
          if (F && F.Archive())
          {
@@ -1585,12 +1585,12 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    if (!logfile_name.empty())
    {
       FILE *log = NULL;
-      char buf[1024];
 
       fprintf(report, "DpkgTerminalLog:\n");
       log = fopen(logfile_name.c_str(),"r");
       if(log != NULL)
       {
+	 char buf[1024];
 	 while( fgets(buf, sizeof(buf), log) != NULL)
 	    fprintf(report, " %s", buf);
 	 fclose(log);
@@ -1609,13 +1609,11 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    // attach dmesg log (to learn about segfaults)
    if (FileExists("/bin/dmesg"))
    {
-      FILE *log = NULL;
-      char buf[1024];
-
       fprintf(report, "Dmesg:\n");
-      log = popen("/bin/dmesg","r");
+      FILE *log = popen("/bin/dmesg","r");
       if(log != NULL)
       {
+	 char buf[1024];
 	 while( fgets(buf, sizeof(buf), log) != NULL)
 	    fprintf(report, " %s", buf);
 	 pclose(log);
@@ -1625,13 +1623,12 @@ void pkgDPkgPM::WriteApportReport(const char *pkgpath, const char *errormsg)
    // attach df -l log (to learn about filesystem status)
    if (FileExists("/bin/df"))
    {
-      FILE *log = NULL;
-      char buf[1024];
 
       fprintf(report, "Df:\n");
-      log = popen("/bin/df -l","r");
+      FILE *log = popen("/bin/df -l","r");
       if(log != NULL)
       {
+	 char buf[1024];
 	 while( fgets(buf, sizeof(buf), log) != NULL)
 	    fprintf(report, " %s", buf);
 	 pclose(log);
diff --git a/apt-pkg/depcache.cc b/apt-pkg/depcache.cc
index a48cd8b0..6a3e9bfc 100644
--- a/apt-pkg/depcache.cc
+++ b/apt-pkg/depcache.cc
@@ -351,18 +351,15 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
       PkgIterator Pkg = Dep.TargetPkg();
       // Check the base package
       if (Type == NowVersion && Pkg->CurrentVer != 0)
-	 if (VS().CheckDep(Pkg.CurrentVer().VerStr(),Dep->CompareOp,
-				 Dep.TargetVer()) == true)
+	 if (Dep.IsSatisfied(Pkg.CurrentVer()) == true)
 	    return true;
       
       if (Type == InstallVersion && PkgState[Pkg->ID].InstallVer != 0)
-	 if (VS().CheckDep(PkgState[Pkg->ID].InstVerIter(*this).VerStr(),
-				 Dep->CompareOp,Dep.TargetVer()) == true)
+	 if (Dep.IsSatisfied(PkgState[Pkg->ID].InstVerIter(*this)) == true)
 	    return true;
       
       if (Type == CandidateVersion && PkgState[Pkg->ID].CandidateVer != 0)
-	 if (VS().CheckDep(PkgState[Pkg->ID].CandidateVerIter(*this).VerStr(),
-				 Dep->CompareOp,Dep.TargetVer()) == true)
+	 if (Dep.IsSatisfied(PkgState[Pkg->ID].CandidateVerIter(*this)) == true)
 	    return true;
    }
    
@@ -398,7 +395,7 @@ bool pkgDepCache::CheckDep(DepIterator Dep,int Type,PkgIterator &Res)
       }
       
       // Compare the versions.
-      if (VS().CheckDep(P.ProvideVersion(),Dep->CompareOp,Dep.TargetVer()) == true)
+      if (Dep.IsSatisfied(P) == true)
       {
 	 Res = P.OwnerPkg();
 	 return true;
@@ -1192,14 +1189,13 @@ bool pkgDepCache::MarkInstall(PkgIterator const &Pkg,bool AutoInst,
       {
 	 APT::VersionList verlist;
 	 pkgCache::VerIterator Cand = PkgState[Start.TargetPkg()->ID].CandidateVerIter(*this);
-	 if (Cand.end() == false && VS().CheckDep(Cand.VerStr(), Start->CompareOp, Start.TargetVer()) == true)
+	 if (Cand.end() == false && Start.IsSatisfied(Cand) == true)
 	    verlist.insert(Cand);
 	 for (PrvIterator Prv = Start.TargetPkg().ProvidesList(); Prv.end() != true; ++Prv)
 	 {
 	    pkgCache::VerIterator V = Prv.OwnerVer();
 	    pkgCache::VerIterator Cand = PkgState[Prv.OwnerPkg()->ID].CandidateVerIter(*this);
-	    if (Cand.end() == true || V != Cand ||
-		VS().CheckDep(Prv.ProvideVersion(), Start->CompareOp, Start.TargetVer()) == false)
+	    if (Cand.end() == true || V != Cand || Start.IsSatisfied(Prv) == false)
 	       continue;
 	    verlist.insert(Cand);
 	 }
@@ -1407,7 +1403,7 @@ bool pkgDepCache::SetCandidateRelease(pkgCache::VerIterator TargetVer,
 	 if (Cand.end() == true)
 	    continue;
 	 // check if the current candidate is enough for the versioned dependency - and installable?
-	 if (VS().CheckDep(P.CandVersion(), Start->CompareOp, Start.TargetVer()) == true &&
+	 if (Start.IsSatisfied(Cand) == true &&
 	     (VersionState(Cand.DependsList(), DepInstall, DepCandMin, DepCandPolicy) & DepCandMin) == DepCandMin)
 	 {
 	    itsFine = true;
@@ -1441,7 +1437,7 @@ bool pkgDepCache::SetCandidateRelease(pkgCache::VerIterator TargetVer,
 	    V = Match.Find(D.TargetPkg());
 
 	 // check if the version from this release could satisfy the dependency
-	 if (V.end() == true || VS().CheckDep(V.VerStr(), D->CompareOp, D.TargetVer()) == false)
+	 if (V.end() == true || D.IsSatisfied(V) == false)
 	 {
 	    if (stillOr == true)
 	       continue;
@@ -1771,7 +1767,7 @@ void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg,
 	   for(VerIterator V = d.TargetPkg().VersionList(); 
 	       !V.end(); ++V)
 	   {
-	      if(_system->VS->CheckDep(V.VerStr(), d->CompareOp, d.TargetVer()))
+	      if(d.IsSatisfied(V))
 	      {
 		if(debug_autoremove)
 		  {
@@ -1793,8 +1789,7 @@ void pkgDepCache::MarkPackage(const pkgCache::PkgIterator &pkg,
 	   for(PrvIterator prv=d.TargetPkg().ProvidesList(); 
 	       !prv.end(); ++prv)
 	   {
-	      if(_system->VS->CheckDep(prv.ProvideVersion(), d->CompareOp, 
-				       d.TargetVer()))
+	      if(d.IsSatisfied(prv))
 	      {
 		if(debug_autoremove)
 		  {
diff --git a/apt-pkg/indexcopy.cc b/apt-pkg/indexcopy.cc
index f53989bd..a262ef78 100644
--- a/apt-pkg/indexcopy.cc
+++ b/apt-pkg/indexcopy.cc
@@ -141,7 +141,6 @@ bool IndexCopy::CopyPackages(string CDROM,string Name,vector<string> &List,
 	    File = OrigPath + ChopDirs(File,Chop);
 	 
 	 // See if the file exists
-	 bool Mangled = false;
 	 if (NoStat == false || Hits < 10)
 	 {
 	    // Attempt to fix broken structure
@@ -164,6 +163,7 @@ bool IndexCopy::CopyPackages(string CDROM,string Name,vector<string> &List,
 	    if (stat(string(CDROM + Prefix + File).c_str(),&Buf) != 0 || 
 		Buf.st_size == 0)
 	    {
+	       bool Mangled = false;
 	       // Attempt to fix busted symlink support for one instance
 	       string OrigFile = File;
 	       string::size_type Start = File.find("binary-");
@@ -681,9 +681,7 @@ bool TranslationsCopy::CopyTranslations(string CDROM,string Name,	/*{{{*/
    unsigned int WrongSize = 0;
    unsigned int Packages = 0;
    for (vector<string>::iterator I = List.begin(); I != List.end(); ++I)
-   {      
-      string OrigPath = string(*I,CDROM.length());
-
+   {
       // Open the package file
       FileFd Pkg(*I, FileFd::ReadOnly, FileFd::Auto);
       off_t const FileSize = Pkg.Size();
diff --git a/apt-pkg/orderlist.cc b/apt-pkg/orderlist.cc
index 3a179b2a..80d8fd49 100644
--- a/apt-pkg/orderlist.cc
+++ b/apt-pkg/orderlist.cc
@@ -331,9 +331,11 @@ int pkgOrderList::Score(PkgIterator Pkg)
       }
 
    // Important Required Standard Optional Extra
-   signed short PrioMap[] = {0,5,4,3,1,0};
    if (Cache[Pkg].InstVerIter(Cache)->Priority <= 5)
+   {
+      signed short PrioMap[] = {0,5,4,3,1,0};
       Score += PrioMap[Cache[Pkg].InstVerIter(Cache)->Priority];
+   }
    return Score;
 }
 									/*}}}*/
diff --git a/apt-pkg/pkgcache.cc b/apt-pkg/pkgcache.cc
index 1de33ff9..d7725563 100644
--- a/apt-pkg/pkgcache.cc
+++ b/apt-pkg/pkgcache.cc
@@ -52,7 +52,7 @@ pkgCache::Header::Header()
    /* Whenever the structures change the major version should be bumped,
       whenever the generator changes the minor version should be bumped. */
    MajorVersion = 8;
-   MinorVersion = 0;
+   MinorVersion = 1;
    Dirty = false;
    
    HeaderSz = sizeof(pkgCache::Header);
@@ -182,18 +182,17 @@ unsigned long pkgCache::sHash(const string &Str) const
 {
    unsigned long Hash = 0;
    for (string::const_iterator I = Str.begin(); I != Str.end(); ++I)
-      Hash = 5*Hash + tolower_ascii(*I);
+      Hash = 41 * Hash + tolower_ascii(*I);
    return Hash % _count(HeaderP->PkgHashTable);
 }
 
 unsigned long pkgCache::sHash(const char *Str) const
 {
-   unsigned long Hash = 0;
-   for (const char *I = Str; *I != 0; ++I)
-      Hash = 5*Hash + tolower_ascii(*I);
+   unsigned long Hash = tolower_ascii(*Str);
+   for (const char *I = Str + 1; *I != 0; ++I)
+      Hash = 41 * Hash + tolower_ascii(*I);
    return Hash % _count(HeaderP->PkgHashTable);
 }
-
 									/*}}}*/
 // Cache::SingleArchFindPkg - Locate a package by name			/*{{{*/
 // ---------------------------------------------------------------------
@@ -206,9 +205,14 @@ pkgCache::PkgIterator pkgCache::SingleArchFindPkg(const string &Name)
    Package *Pkg = PkgP + HeaderP->PkgHashTable[Hash(Name)];
    for (; Pkg != PkgP; Pkg = PkgP + Pkg->NextPackage)
    {
-      if (Pkg->Name != 0 && StrP[Pkg->Name] == Name[0] &&
-          stringcasecmp(Name,StrP + Pkg->Name) == 0)
-         return PkgIterator(*this,Pkg);
+      if (unlikely(Pkg->Name == 0))
+	 continue;
+
+      int const cmp = strcasecmp(Name.c_str(), StrP + Pkg->Name);
+      if (cmp == 0)
+	 return PkgIterator(*this, Pkg);
+      else if (cmp < 0)
+	 break;
    }
    return PkgIterator(*this,0);
 }
@@ -265,9 +269,14 @@ pkgCache::GrpIterator pkgCache::FindGrp(const string &Name) {
 	// Look at the hash bucket for the group
 	Group *Grp = GrpP + HeaderP->GrpHashTable[sHash(Name)];
 	for (; Grp != GrpP; Grp = GrpP + Grp->Next) {
-		if (Grp->Name != 0 && StrP[Grp->Name] == Name[0] &&
-		    stringcasecmp(Name, StrP + Grp->Name) == 0)
+		if (unlikely(Grp->Name == 0))
+		   continue;
+
+		int const cmp = strcasecmp(Name.c_str(), StrP + Grp->Name);
+		if (cmp == 0)
 			return GrpIterator(*this, Grp);
+		else if (cmp < 0)
+			break;
 	}
 
 	return GrpIterator(*this,0);
@@ -279,22 +288,22 @@ pkgCache::GrpIterator pkgCache::FindGrp(const string &Name) {
    type in the weird debian style.. */
 const char *pkgCache::CompTypeDeb(unsigned char Comp)
 {
-   const char *Ops[] = {"","<=",">=","<<",">>","=","!="};
-   if ((unsigned)(Comp & 0xF) < 7)
-      return Ops[Comp & 0xF];
-   return "";	 
+   const char * const Ops[] = {"","<=",">=","<<",">>","=","!="};
+   if (unlikely((unsigned)(Comp & 0xF) >= sizeof(Ops)/sizeof(Ops[0])))
+      return "";
+   return Ops[Comp & 0xF];
 }
 									/*}}}*/
 // Cache::CompType - Return a string describing the compare type	/*{{{*/
 // ---------------------------------------------------------------------
-/* This returns a string representation of the dependency compare 
+/* This returns a string representation of the dependency compare
    type */
 const char *pkgCache::CompType(unsigned char Comp)
 {
-   const char *Ops[] = {"","<=",">=","<",">","=","!="};
-   if ((unsigned)(Comp & 0xF) < 7)
-      return Ops[Comp & 0xF];
-   return "";	 
+   const char * const Ops[] = {"","<=",">=","<",">","=","!="};
+   if (unlikely((unsigned)(Comp & 0xF) >= sizeof(Ops)/sizeof(Ops[0])))
+      return "";
+   return Ops[Comp & 0xF];
 }
 									/*}}}*/
 // Cache::DepType - Return a string describing the dep type		/*{{{*/
@@ -625,8 +634,7 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const
       {
 	 if (IsIgnorable(I.ParentPkg()) == true)
 	    continue;
-
-	 if (Owner->VS->CheckDep(I.VerStr(),S->CompareOp,TargetVer()) == false)
+	 if (IsSatisfied(I) == false)
 	    continue;
 
 	 Size++;
@@ -639,8 +647,7 @@ pkgCache::Version **pkgCache::DepIterator::AllTargets() const
       {
 	 if (IsIgnorable(I) == true)
 	    continue;
-
-	 if (Owner->VS->CheckDep(I.ProvideVersion(),S->CompareOp,TargetVer()) == false)
+	 if (IsSatisfied(I) == false)
 	    continue;
 
 	 Size++;
@@ -748,6 +755,16 @@ bool pkgCache::DepIterator::IsMultiArchImplicit() const
    return false;
 }
 									/*}}}*/
+// DepIterator::IsSatisfied - check if a version satisfied the dependency /*{{{*/
+bool pkgCache::DepIterator::IsSatisfied(VerIterator const &Ver) const
+{
+   return Owner->VS->CheckDep(Ver.VerStr(),S->CompareOp,TargetVer());
+}
+bool pkgCache::DepIterator::IsSatisfied(PrvIterator const &Prv) const
+{
+   return Owner->VS->CheckDep(Prv.ProvideVersion(),S->CompareOp,TargetVer());
+}
+									/*}}}*/
 // ostream operator to handle string representation of a dependecy	/*{{{*/
 // ---------------------------------------------------------------------
 /* */
diff --git a/apt-pkg/pkgcachegen.cc b/apt-pkg/pkgcachegen.cc
index 373f6625..3f10b6c4 100644
--- a/apt-pkg/pkgcachegen.cc
+++ b/apt-pkg/pkgcachegen.cc
@@ -300,36 +300,35 @@ bool pkgCacheGenerator::MergeListPackage(ListParser &List, pkgCache::PkgIterator
 
    for (Ver = Pkg.VersionList(); Ver.end() == false; ++Ver)
    {
-      pkgCache::DescIterator Desc = Ver.DescriptionList();
+      pkgCache::DescIterator VerDesc = Ver.DescriptionList();
 
       // a version can only have one md5 describing it
-      if (Desc.end() == true || MD5SumValue(Desc.md5()) != CurMd5)
+      if (VerDesc.end() == true || MD5SumValue(VerDesc.md5()) != CurMd5)
 	 continue;
 
       // don't add a new description if we have one for the given
       // md5 && language
-      if (IsDuplicateDescription(Desc, CurMd5, CurLang) == true)
+      if (IsDuplicateDescription(VerDesc, CurMd5, CurLang) == true)
 	 continue;
 
+      pkgCache::DescIterator Desc;
       Dynamic<pkgCache::DescIterator> DynDesc(Desc);
-      // we add at the end, so that the start is constant as we need
-      // that to be able to efficiently share these lists
-      map_ptrloc *LastDesc = &Ver->DescriptionList;
-      for (;Desc.end() == false && Desc->NextDesc != 0; ++Desc);
-      if (Desc.end() == false)
-	 LastDesc = &Desc->NextDesc;
 
-      void const * const oldMap = Map.Data();
-      map_ptrloc const descindex = NewDescription(Desc, CurLang, CurMd5, *LastDesc);
+      map_ptrloc const descindex = NewDescription(Desc, CurLang, CurMd5, VerDesc->md5sum);
       if (unlikely(descindex == 0 && _error->PendingError()))
 	 return _error->Error(_("Error occurred while processing %s (%s%d)"),
 			      Pkg.Name(), "NewDescription", 1);
-      if (oldMap != Map.Data())
-	 LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap;
-      *LastDesc = descindex;
+
       Desc->ParentPkg = Pkg.Index();
 
-      if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false)
+      // we add at the end, so that the start is constant as we need
+      // that to be able to efficiently share these lists
+      VerDesc = Ver.DescriptionList(); // old value might be invalid after ReMap
+      for (;VerDesc.end() == false && VerDesc->NextDesc != 0; ++VerDesc);
+      map_ptrloc * const LastNextDesc = (VerDesc.end() == true) ? &Ver->DescriptionList : &VerDesc->NextDesc;
+      *LastNextDesc = descindex;
+
+      if (NewFileDesc(Desc,List) == false)
 	 return _error->Error(_("Error occurred while processing %s (%s%d)"),
 			      Pkg.Name(), "NewFileDesc", 1);
 
@@ -391,7 +390,7 @@ bool pkgCacheGenerator::MergeListVersion(ListParser &List, pkgCache::PkgIterator
    }
 
    // Add a new version
-   map_ptrloc const verindex = NewVersion(Ver,Version,*LastVer);
+   map_ptrloc const verindex = NewVersion(Ver, Version, Pkg.Index(), Hash, *LastVer);
    if (verindex == 0 && _error->PendingError())
       return _error->Error(_("Error occurred while processing %s (%s%d)"),
 			   Pkg.Name(), "NewVersion", 1);
@@ -399,8 +398,6 @@ bool pkgCacheGenerator::MergeListVersion(ListParser &List, pkgCache::PkgIterator
    if (oldMap != Map.Data())
 	 LastVer += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap;
    *LastVer = verindex;
-   Ver->ParentPkg = Pkg.Index();
-   Ver->Hash = Hash;
 
    if (unlikely(List.NewVersion(Ver) == false))
       return _error->Error(_("Error occurred while processing %s (%s%d)"),
@@ -464,11 +461,8 @@ bool pkgCacheGenerator::MergeListVersion(ListParser &List, pkgCache::PkgIterator
 	       pkgCache::VerIterator ConVersion = D.ParentVer();
 	       Dynamic<pkgCache::VerIterator> DynV(ConVersion);
 	       // duplicate the Conflicts/Breaks/Replaces for :none arch
-	       if (D->Version == 0)
-		  NewDepends(Pkg, ConVersion, "", 0, D->Type, OldDepLast);
-	       else
-		  NewDepends(Pkg, ConVersion, D.TargetVer(),
-			     D->CompareOp, D->Type, OldDepLast);
+	       NewDepends(Pkg, ConVersion, D->Version,
+		     D->CompareOp, D->Type, OldDepLast);
 	    }
 	 }
       }
@@ -509,19 +503,16 @@ bool pkgCacheGenerator::MergeListVersion(ListParser &List, pkgCache::PkgIterator
    // We haven't found reusable descriptions, so add the first description
    pkgCache::DescIterator Desc = Ver.DescriptionList();
    Dynamic<pkgCache::DescIterator> DynDesc(Desc);
-   map_ptrloc *LastDesc = &Ver->DescriptionList;
 
-   oldMap = Map.Data();
-   map_ptrloc const descindex = NewDescription(Desc, CurLang, CurMd5, *LastDesc);
+   map_ptrloc const descindex = NewDescription(Desc, CurLang, CurMd5, 0);
    if (unlikely(descindex == 0 && _error->PendingError()))
       return _error->Error(_("Error occurred while processing %s (%s%d)"),
 			   Pkg.Name(), "NewDescription", 2);
-   if (oldMap != Map.Data())
-       LastDesc += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap;
-   *LastDesc = descindex;
+
    Desc->ParentPkg = Pkg.Index();
+   Ver->DescriptionList = descindex;
 
-   if ((*LastDesc == 0 && _error->PendingError()) || NewFileDesc(Desc,List) == false)
+   if (NewFileDesc(Desc,List) == false)
       return _error->Error(_("Error occurred while processing %s (%s%d)"),
 			   Pkg.Name(), "NewFileDesc", 2);
 
@@ -564,7 +555,7 @@ bool pkgCacheGenerator::MergeFileProvides(ListParser &List)
       Dynamic<pkgCache::VerIterator> DynVer(Ver);
       for (; Ver.end() == false; ++Ver)
       {
-	 if (Ver->Hash == Hash && Version.c_str() == Ver.VerStr())
+	 if (Ver->Hash == Hash && Version == Ver.VerStr())
 	 {
 	    if (List.CollectFileProvides(Cache,Ver) == false)
 	       return _error->Error(_("Error occurred while processing %s (%s%d)"),
@@ -602,8 +593,11 @@ bool pkgCacheGenerator::NewGroup(pkgCache::GrpIterator &Grp, const string &Name)
 
    // Insert it into the hash table
    unsigned long const Hash = Cache.Hash(Name);
-   Grp->Next = Cache.HeaderP->GrpHashTable[Hash];
-   Cache.HeaderP->GrpHashTable[Hash] = Group;
+   map_ptrloc *insertAt = &Cache.HeaderP->GrpHashTable[Hash];
+   while (*insertAt != 0 && strcasecmp(Name.c_str(), Cache.StrP + (Cache.GrpP + *insertAt)->Name) > 0)
+      insertAt = &(Cache.GrpP + *insertAt)->Next;
+   Grp->Next = *insertAt;
+   *insertAt = Group;
 
    Grp->ID = Cache.HeaderP->GroupCount++;
    return true;
@@ -632,11 +626,14 @@ bool pkgCacheGenerator::NewPackage(pkgCache::PkgIterator &Pkg,const string &Name
    // Insert the package into our package list
    if (Grp->FirstPackage == 0) // the group is new
    {
+      Grp->FirstPackage = Package;
       // Insert it into the hash table
       unsigned long const Hash = Cache.Hash(Name);
-      Pkg->NextPackage = Cache.HeaderP->PkgHashTable[Hash];
-      Cache.HeaderP->PkgHashTable[Hash] = Package;
-      Grp->FirstPackage = Package;
+      map_ptrloc *insertAt = &Cache.HeaderP->PkgHashTable[Hash];
+      while (*insertAt != 0 && strcasecmp(Name.c_str(), Cache.StrP + (Cache.PkgP + *insertAt)->Name) > 0)
+	 insertAt = &(Cache.PkgP + *insertAt)->NextPackage;
+      Pkg->NextPackage = *insertAt;
+      *insertAt = Package;
    }
    else // Group the Packages together
    {
@@ -675,6 +672,7 @@ bool pkgCacheGenerator::AddImplicitDepends(pkgCache::GrpIterator &G,
    bool const coInstall = ((V->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same);
    pkgCache::PkgIterator D = G.PackageList();
    Dynamic<pkgCache::PkgIterator> DynD(D);
+   map_ptrloc const VerStrIdx = V->VerStr;
    for (; D.end() != true; D = G.NextPkg(D))
    {
       if (Arch == D.Arch() || D->VersionList == 0)
@@ -685,16 +683,16 @@ bool pkgCacheGenerator::AddImplicitDepends(pkgCache::GrpIterator &G,
       if (coInstall == true)
       {
 	 // Replaces: ${self}:other ( << ${binary:Version})
-	 NewDepends(D, V, V.VerStr(),
+	 NewDepends(D, V, VerStrIdx,
 		    pkgCache::Dep::Less, pkgCache::Dep::Replaces,
 		    OldDepLast);
 	 // Breaks: ${self}:other (!= ${binary:Version})
-	 NewDepends(D, V, V.VerStr(),
+	 NewDepends(D, V, VerStrIdx,
 		    pkgCache::Dep::NotEquals, pkgCache::Dep::DpkgBreaks,
 		    OldDepLast);
       } else {
 	 // Conflicts: ${self}:other
-	 NewDepends(D, V, "",
+	 NewDepends(D, V, 0,
 		    pkgCache::Dep::NoOp, pkgCache::Dep::Conflicts,
 		    OldDepLast);
       }
@@ -711,17 +709,18 @@ bool pkgCacheGenerator::AddImplicitDepends(pkgCache::VerIterator &V,
    bool const coInstall = ((V->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same);
    if (coInstall == true)
    {
+      map_ptrloc const VerStrIdx = V->VerStr;
       // Replaces: ${self}:other ( << ${binary:Version})
-      NewDepends(D, V, V.VerStr(),
+      NewDepends(D, V, VerStrIdx,
 		 pkgCache::Dep::Less, pkgCache::Dep::Replaces,
 		 OldDepLast);
       // Breaks: ${self}:other (!= ${binary:Version})
-      NewDepends(D, V, V.VerStr(),
+      NewDepends(D, V, VerStrIdx,
 		 pkgCache::Dep::NotEquals, pkgCache::Dep::DpkgBreaks,
 		 OldDepLast);
    } else {
       // Conflicts: ${self}:other
-      NewDepends(D, V, "",
+      NewDepends(D, V, 0,
 		 pkgCache::Dep::NoOp, pkgCache::Dep::Conflicts,
 		 OldDepLast);
    }
@@ -767,6 +766,8 @@ bool pkgCacheGenerator::NewFileVer(pkgCache::VerIterator &Ver,
 /* This puts a version structure in the linked list */
 unsigned long pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver,
 					    const string &VerStr,
+					    map_ptrloc const ParentPkg,
+					    unsigned long const Hash,
 					    unsigned long Next)
 {
    // Get a structure
@@ -778,12 +779,37 @@ unsigned long pkgCacheGenerator::NewVersion(pkgCache::VerIterator &Ver,
    Ver = pkgCache::VerIterator(Cache,Cache.VerP + Version);
    //Dynamic<pkgCache::VerIterator> DynV(Ver); // caller MergeListVersion already takes care of it
    Ver->NextVer = Next;
+   Ver->ParentPkg = ParentPkg;
+   Ver->Hash = Hash;
    Ver->ID = Cache.HeaderP->VersionCount++;
+
+   // try to find the version string in the group for reuse
+   pkgCache::PkgIterator Pkg = Ver.ParentPkg();
+   pkgCache::GrpIterator Grp = Pkg.Group();
+   if (Pkg.end() == false && Grp.end() == false)
+   {
+      for (pkgCache::PkgIterator P = Grp.PackageList(); P.end() == false; P = Grp.NextPkg(P))
+      {
+	 if (Pkg == P)
+	    continue;
+	 for (pkgCache::VerIterator V = P.VersionList(); V.end() == false; ++V)
+	 {
+	    int const cmp = strcmp(V.VerStr(), VerStr.c_str());
+	    if (cmp == 0)
+	    {
+	       Ver->VerStr = V->VerStr;
+	       return Version;
+	    }
+	    else if (cmp < 0)
+	       break;
+	 }
+      }
+   }
+   // haven't found the version string, so create
    map_ptrloc const idxVerStr = WriteStringInMap(VerStr);
    if (unlikely(idxVerStr == 0))
       return 0;
    Ver->VerStr = idxVerStr;
-   
    return Version;
 }
 									/*}}}*/
@@ -825,9 +851,9 @@ bool pkgCacheGenerator::NewFileDesc(pkgCache::DescIterator &Desc,
 // ---------------------------------------------------------------------
 /* This puts a description structure in the linked list */
 map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc,
-					    const string &Lang, 
-                                            const MD5SumValue &md5sum,
-					    map_ptrloc Next)
+					    const string &Lang,
+					    const MD5SumValue &md5sum,
+					    map_ptrloc idxmd5str)
 {
    // Get a structure
    map_ptrloc const Description = AllocateInMap(sizeof(pkgCache::Description));
@@ -836,14 +862,21 @@ map_ptrloc pkgCacheGenerator::NewDescription(pkgCache::DescIterator &Desc,
 
    // Fill it in
    Desc = pkgCache::DescIterator(Cache,Cache.DescP + Description);
-   Desc->NextDesc = Next;
    Desc->ID = Cache.HeaderP->DescriptionCount++;
-   map_ptrloc const idxlanguage_code = WriteStringInMap(Lang);
-   map_ptrloc const idxmd5sum = WriteStringInMap(md5sum.Value());
-   if (unlikely(idxlanguage_code == 0 || idxmd5sum == 0))
+   map_ptrloc const idxlanguage_code = WriteUniqString(Lang);
+   if (unlikely(idxlanguage_code == 0))
       return 0;
    Desc->language_code = idxlanguage_code;
-   Desc->md5sum = idxmd5sum;
+
+   if (idxmd5str != 0)
+      Desc->md5sum = idxmd5str;
+   else
+   {
+      map_ptrloc const idxmd5sum = WriteStringInMap(md5sum.Value());
+      if (unlikely(idxmd5sum == 0))
+	 return 0;
+      Desc->md5sum = idxmd5sum;
+   }
 
    return Description;
 }
@@ -859,34 +892,48 @@ bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg,
 				   unsigned int const &Type,
 				   map_ptrloc* &OldDepLast)
 {
+   map_ptrloc index = 0;
+   if (Version.empty() == false)
+   {
+      int const CmpOp = Op & 0x0F;
+      // =-deps are used (79:1) for lockstep on same-source packages (e.g. data-packages)
+      if (CmpOp == pkgCache::Dep::Equals && strcmp(Version.c_str(), Ver.VerStr()) == 0)
+	 index = Ver->VerStr;
+
+      if (index == 0)
+      {
+	 void const * const oldMap = Map.Data();
+	 index = WriteStringInMap(Version);
+	 if (unlikely(index == 0))
+	    return false;
+	 if (OldDepLast != 0 && oldMap != Map.Data())
+	    OldDepLast += (map_ptrloc*) Map.Data() - (map_ptrloc*) oldMap;
+      }
+   }
+   return NewDepends(Pkg, Ver, index, Op, Type, OldDepLast);
+}
+bool pkgCacheGenerator::NewDepends(pkgCache::PkgIterator &Pkg,
+				   pkgCache::VerIterator &Ver,
+				   map_ptrloc const Version,
+				   unsigned int const &Op,
+				   unsigned int const &Type,
+				   map_ptrloc* &OldDepLast)
+{
    void const * const oldMap = Map.Data();
    // Get a structure
    map_ptrloc const Dependency = AllocateInMap(sizeof(pkgCache::Dependency));
    if (unlikely(Dependency == 0))
       return false;
-   
+
    // Fill it in
    pkgCache::DepIterator Dep(Cache,Cache.DepP + Dependency);
    Dynamic<pkgCache::DepIterator> DynDep(Dep);
    Dep->ParentVer = Ver.Index();
    Dep->Type = Type;
    Dep->CompareOp = Op;
+   Dep->Version = Version;
    Dep->ID = Cache.HeaderP->DependsCount++;
 
-   // Probe the reverse dependency list for a version string that matches
-   if (Version.empty() == false)
-   {
-/*      for (pkgCache::DepIterator I = Pkg.RevDependsList(); I.end() == false; I++)
-	 if (I->Version != 0 && I.TargetVer() == Version)
-	    Dep->Version = I->Version;*/
-      if (Dep->Version == 0) {
-	 map_ptrloc const index = WriteStringInMap(Version);
-	 if (unlikely(index == 0))
-	    return false;
-	 Dep->Version = index;
-      }
-   }
-
    // Link it to the package
    Dep->Package = Pkg.Index();
    Dep->NextRevDepends = Pkg->RevDepends;
diff --git a/apt-pkg/pkgcachegen.h b/apt-pkg/pkgcachegen.h
index b6259b43..428e8459 100644
--- a/apt-pkg/pkgcachegen.h
+++ b/apt-pkg/pkgcachegen.h
@@ -77,7 +77,14 @@ class pkgCacheGenerator							/*{{{*/
    bool NewDepends(pkgCache::PkgIterator &Pkg, pkgCache::VerIterator &Ver,
 		   std::string const &Version, unsigned int const &Op,
 		   unsigned int const &Type, map_ptrloc* &OldDepLast);
-   unsigned long NewVersion(pkgCache::VerIterator &Ver,const std::string &VerStr,unsigned long Next);
+   bool NewDepends(pkgCache::PkgIterator &Pkg, pkgCache::VerIterator &Ver,
+		   map_ptrloc const Version, unsigned int const &Op,
+		   unsigned int const &Type, map_ptrloc* &OldDepLast);
+   __deprecated unsigned long NewVersion(pkgCache::VerIterator &Ver,const std::string &VerStr,unsigned long Next)
+   { return NewVersion(Ver, VerStr, 0, 0, Next); }
+   unsigned long NewVersion(pkgCache::VerIterator &Ver,const std::string &VerStr,
+			    map_ptrloc const ParentPkg, unsigned long const Hash,
+			    unsigned long Next);
    map_ptrloc NewDescription(pkgCache::DescIterator &Desc,const std::string &Lang,const MD5SumValue &md5sum,map_ptrloc Next);
 
    public:
diff --git a/apt-pkg/srcrecords.cc b/apt-pkg/srcrecords.cc
index d63d2c42..29755995 100644
--- a/apt-pkg/srcrecords.cc
+++ b/apt-pkg/srcrecords.cc
@@ -42,7 +42,7 @@ pkgSrcRecords::pkgSrcRecords(pkgSourceList &List) : d(NULL), Files(0), Current(0
    }
    
    // Doesn't work without any source index files
-   if (Files.size() == 0)
+   if (Files.empty() == true)
    {
       _error->Error(_("You must put some 'source' URIs"
 		    " in your sources.list"));
@@ -121,14 +121,13 @@ pkgSrcRecords::Parser *pkgSrcRecords::Find(const char *Package,bool const &SrcOn
 /* */
 const char *pkgSrcRecords::Parser::BuildDepType(unsigned char const &Type)
 {
-   const char *fields[] = {"Build-Depends", 
-                           "Build-Depends-Indep",
+   const char *fields[] = {"Build-Depends",
+			   "Build-Depends-Indep",
 			   "Build-Conflicts",
 			   "Build-Conflicts-Indep"};
-   if (Type < 4) 
-      return fields[Type]; 
-   else 
+   if (unlikely(Type >= sizeof(fields)/sizeof(fields[0])))
       return "";
+   return fields[Type];
 }
 									/*}}}*/
 
diff --git a/apt-pkg/vendor.cc b/apt-pkg/vendor.cc
index 36fc2595..fc03ec84 100644
--- a/apt-pkg/vendor.cc
+++ b/apt-pkg/vendor.cc
@@ -12,7 +12,7 @@ Vendor::Vendor(std::string VendorID,
    this->VendorID = VendorID;
    this->Origin = Origin;
    for (std::vector<struct Vendor::Fingerprint *>::iterator I = FingerprintList->begin();
-	I != FingerprintList->end(); I++)
+	I != FingerprintList->end(); ++I)
    {
       if (_config->FindB("Debug::Vendor", false))
          std::cerr << "Vendor \"" << VendorID << "\": Mapping \""
diff --git a/apt-pkg/versionmatch.cc b/apt-pkg/versionmatch.cc
index e4fa0ea6..26262a01 100644
--- a/apt-pkg/versionmatch.cc
+++ b/apt-pkg/versionmatch.cc
@@ -181,9 +181,9 @@ pkgCache::VerIterator pkgVersionMatch::Find(pkgCache::PkgIterator Pkg)
 bool pkgVersionMatch::ExpressionMatches(const char *pattern, const char *string)
 {
    if (pattern[0] == '/') {
-      bool res = false;
       size_t length = strlen(pattern);
       if (pattern[length - 1] == '/') {
+	 bool res = false;
 	 regex_t preg;
 	 char *regex = strdup(pattern + 1);
 	 regex[length - 2] = '\0';
diff --git a/cmdline/apt-get.cc b/cmdline/apt-get.cc
index 64b062ea..999f2a6a 100644
--- a/cmdline/apt-get.cc
+++ b/cmdline/apt-get.cc
@@ -1912,7 +1912,6 @@ bool DoInstall(CommandLine &CmdL)
       return false;
    }
 
-   unsigned short const order[] = { MOD_REMOVE, MOD_INSTALL, 0 };
 
   TryToInstall InstallAction(Cache, Fix, BrokenFix);
   TryToRemove RemoveAction(Cache, Fix);
@@ -1920,6 +1919,7 @@ bool DoInstall(CommandLine &CmdL)
    // new scope for the ActionGroup
    {
       pkgDepCache::ActionGroup group(Cache);
+      unsigned short const order[] = { MOD_REMOVE, MOD_INSTALL, 0 };
 
       for (unsigned short i = 0; order[i] != 0; ++i)
       {
@@ -2023,7 +2023,7 @@ bool DoInstall(CommandLine &CmdL)
 
    /* Print out a list of suggested and recommended packages */
    {
-      string SuggestsList, RecommendsList, List;
+      string SuggestsList, RecommendsList;
       string SuggestsVersions, RecommendsVersions;
       for (unsigned J = 0; J < Cache->Head().PackageCount; J++)
       {
diff --git a/debian/changelog b/debian/changelog
index a84dfe47..2910501b 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -7,6 +7,26 @@ apt (0.9.7.9~exp3) UNRELEASED; urgency=low
   * debian/control:
     - replace manpages-it (closes: #704723)
 
+  [ David Kalnischkies ]
+  * various simple changes to fix cppcheck warnings
+  * apt-pkg/pkgcachegen.cc:
+    - do not store the MD5Sum for every description language variant as
+      it will be the same for all so it can be shared to save cache space
+    - handle language tags for descriptions are unique strings to be shared
+    - factor version string creation out of NewDepends, so we can easily reuse
+      version strings e.g. for implicit multi-arch dependencies
+    - equal comparisions are used mostly in same-source relations,
+      so use this to try to reuse some version strings
+    - sort group and package names in the hashtable on insert
+    - share version strings between same versions (of different architectures)
+      to save some space and allow quick comparisions later on
+  * apt-pkg/pkgcache.cc:
+    - assume sorted hashtable entries for groups/packages
+  * apt-pkg/cacheiterators.h:
+    - provide DepIterator::IsSatisfied as a nicer shorthand for DepCheck
+  * apt-pkg/deb/debversion.cc:
+    - add a string-equal shortcut for equal version comparisions
+
   [ Marc Deslauriers ]
   * make apt-ftparchive generate missing deb-src hashes (LP: #1078697)
 
diff --git a/methods/rfc2553emu.cc b/methods/rfc2553emu.cc
index f00e8588..37288276 100644
--- a/methods/rfc2553emu.cc
+++ b/methods/rfc2553emu.cc
@@ -154,11 +154,9 @@ int getaddrinfo(const char *nodename, const char *servname,
 /* */
 void freeaddrinfo(struct addrinfo *ai)
 {
-   struct addrinfo *Tmp;
    while (ai != 0)
    {
       free(ai->ai_addr);
-      Tmp = ai;
       ai = ai->ai_next;
       free(ai);
    }