Merge topic 'minor-cleanups'

820986ed cmLocalGenerator: Constify GetIncludeDirectories method.
b3e2e332 QtAutogen: Get the global generator from the Makefile.
61c0113c cmLocalUnixMakefileGenerator3: Remove unused method.
080489b8 cmMakefile: Use member directly instead of through method.
8bfaadfa cmMakefile: Move IsRoot API from cmLocalGenerator.
217c243d cmake: Update the current snapshot when Resetting.
eb05dcd6 cmLocalGenerator: Add IssueMessage method.
cfae7fa4 cmMakefile: Use cmOutputConverter instead of cmLocalGenerator.
ccf7760f cmOutputConverter: Constify API.

15 files changed, 81 insertions, 58 deletions

diff --git a/Source/cmGeneratorTarget.cxx b/Source/cmGeneratorTarget.cxx
index 67d0d54..2f68ab0 100644
--- a/Source/cmGeneratorTarget.cxx
+++ b/Source/cmGeneratorTarget.cxx
@@ -705,7 +705,8 @@ cmTargetTraceDependencies
           e << "Evaluation output file\n  \"" << sf->GetFullPath()
             << "\"\ndepends on the sources of a target it is used in.  This "
               "is a dependency loop and is not allowed.";
-          this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+          this->GeneratorTarget
+              ->LocalGenerator->IssueMessage(cmake::FATAL_ERROR, e.str());
           return;
           }
         if(emitted.insert(sf).second && this->SourcesQueued.insert(sf).second)
diff --git a/Source/cmGlobalUnixMakefileGenerator3.cxx b/Source/cmGlobalUnixMakefileGenerator3.cxx
index 4fe52dd..0f61225 100644
--- a/Source/cmGlobalUnixMakefileGenerator3.cxx
+++ b/Source/cmGlobalUnixMakefileGenerator3.cxx
@@ -529,7 +529,7 @@ cmGlobalUnixMakefileGenerator3
                        cmLocalUnixMakefileGenerator3* lg)
 {
   // Only subdirectories need these rules.
-  if(lg->IsRootMakefile())
+  if(lg->GetMakefile()->IsRootMakefile())
     {
     return;
     }
@@ -1034,7 +1034,7 @@ void cmGlobalUnixMakefileGenerator3::WriteHelpRule
       static_cast<cmLocalUnixMakefileGenerator3 *>(this->LocalGenerators[i]);
     // for the passed in makefile or if this is the top Makefile wripte out
     // the targets
-    if (lg2 == lg || lg->IsRootMakefile())
+    if (lg2 == lg || lg->GetMakefile()->IsRootMakefile())
       {
       // for each target Generate the rule files for each target.
       cmTargets& targets = lg2->GetMakefile()->GetTargets();
diff --git a/Source/cmLocalGenerator.cxx b/Source/cmLocalGenerator.cxx
index 98accf9..6f98ee2 100644
--- a/Source/cmLocalGenerator.cxx
+++ b/Source/cmLocalGenerator.cxx
@@ -68,9 +68,20 @@ cmLocalGenerator::~cmLocalGenerator()
   delete this->Makefile;
 }
 
-bool cmLocalGenerator::IsRootMakefile() const
+void cmLocalGenerator::IssueMessage(cmake::MessageType t,
+                                    std::string const& text) const
 {
-  return !this->StateSnapshot.GetBuildsystemDirectoryParent().IsValid();
+  cmListFileContext lfc;
+  lfc.FilePath = this->StateSnapshot.GetCurrentSourceDirectory();
+  lfc.FilePath += "/CMakeLists.txt";
+
+  if(!this->GlobalGenerator->GetCMakeInstance()->GetIsInTryCompile())
+    {
+    cmOutputConverter converter(this->StateSnapshot);
+    lfc.FilePath = converter.Convert(lfc.FilePath, cmLocalGenerator::HOME);
+    }
+  lfc.Line = 0;
+  this->GlobalGenerator->GetCMakeInstance()->IssueMessage(t, text, lfc);
 }
 
 //----------------------------------------------------------------------------
@@ -98,7 +109,7 @@ void cmLocalGenerator::ComputeObjectMaxPath()
         w << "CMAKE_OBJECT_PATH_MAX is set to " << pmax
           << ", which is less than the minimum of 128.  "
           << "The value will be ignored.";
-        this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w.str());
+        this->IssueMessage(cmake::AUTHOR_WARNING, w.str());
         }
       }
     else
@@ -107,7 +118,7 @@ void cmLocalGenerator::ComputeObjectMaxPath()
       w << "CMAKE_OBJECT_PATH_MAX is set to \"" << plen
         << "\", which fails to parse as a positive integer.  "
         << "The value will be ignored.";
-      this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w.str());
+      this->IssueMessage(cmake::AUTHOR_WARNING, w.str());
       }
     }
   this->ObjectMaxPathViolations.clear();
@@ -1317,7 +1328,7 @@ void cmLocalGenerator::AddCompileOptions(
         "higher \"" << it->first << "_STANDARD\" \"" << standard << "\".  "
         "This is not permitted. The COMPILE_FEATURES may not both depend on "
         "and be depended on by the link implementation." << std::endl;
-      this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
+      this->IssueMessage(cmake::FATAL_ERROR, e.str());
       return;
       }
     }
@@ -1330,7 +1341,7 @@ void cmLocalGenerator::GetIncludeDirectories(std::vector<std::string>& dirs,
                                              const std::string& lang,
                                              const std::string& config,
                                              bool stripImplicitInclDirs
-                                            )
+                                            ) const
 {
   // Need to decide whether to automatically include the source and
   // binary directories at the beginning of the include path.
@@ -2041,7 +2052,7 @@ AddCompilerRequirementFlag(std::string &flags, cmTarget const* target,
            "dialect \"" << lang << standardProp << "\" "
         << (ext ? "(with compiler extensions)" : "") << ", but CMake "
            "does not know the compile flags to use to enable it.";
-      this->GetMakefile()->IssueMessage(cmake::FATAL_ERROR, e.str());
+      this->IssueMessage(cmake::FATAL_ERROR, e.str());
       }
     else
       {
@@ -2085,7 +2096,7 @@ AddCompilerRequirementFlag(std::string &flags, cmTarget const* target,
     std::string e =
       "CMAKE_" + lang + "_STANDARD_DEFAULT is set to invalid value '" +
       std::string(defaultStd) + "'";
-    this->Makefile->IssueMessage(cmake::INTERNAL_ERROR, e);
+    this->IssueMessage(cmake::INTERNAL_ERROR, e);
     return;
     }
 
@@ -2301,7 +2312,7 @@ bool cmLocalGenerator::GetShouldUseOldFlags(bool shared,
             << flagsVar << " was removed.\n"
             << cmPolicies::GetPolicyWarning(cmPolicies::CMP0018);
 
-          this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, e.str());
+          this->IssueMessage(cmake::AUTHOR_WARNING, e.str());
           // fall through to OLD behaviour
         }
         case cmPolicies::OLD:
@@ -2813,7 +2824,7 @@ cmLocalGenerator
           << "  " << ssin << "\n"
           << "cannot be safely placed under this directory.  "
           << "The build may not work correctly.";
-        this->Makefile->IssueMessage(cmake::WARNING, m.str());
+        this->IssueMessage(cmake::WARNING, m.str());
         }
       }
 #else
diff --git a/Source/cmLocalGenerator.h b/Source/cmLocalGenerator.h
index 6a8c5aa..98f4d3a 100644
--- a/Source/cmLocalGenerator.h
+++ b/Source/cmLocalGenerator.h
@@ -14,6 +14,7 @@
 
 #include "cmStandardIncludes.h"
 #include "cmState.h"
+#include "cmake.h"
 #include "cmOutputConverter.h"
 
 class cmMakefile;
@@ -39,9 +40,6 @@ public:
                    cmState::Snapshot snapshot);
   virtual ~cmLocalGenerator();
 
-  /// @return whether we are processing the top CMakeLists.txt file.
-  bool IsRootMakefile() const;
-
   /**
    * Generate the makefile for this directory.
    */
@@ -185,7 +183,7 @@ public:
                              cmGeneratorTarget* target,
                              const std::string& lang = "C",
                              const std::string& config = "",
-                             bool stripImplicitInclDirs = true);
+                             bool stripImplicitInclDirs = true) const;
   void AddCompileOptions(std::string& flags, cmTarget* target,
                          const std::string& lang, const std::string& config);
   void AddCompileDefinitions(std::set<std::string>& defines,
@@ -304,6 +302,9 @@ public:
   bool IsMinGWMake() const;
   bool IsNMake() const;
 
+  void IssueMessage(cmake::MessageType t, std::string const& text) const;
+
+
   void ComputeObjectMaxPath();
 protected:
   ///! put all the libraries for a target on into the given stream
diff --git a/Source/cmLocalNinjaGenerator.cxx b/Source/cmLocalNinjaGenerator.cxx
index 427ae10..4db36fc 100644
--- a/Source/cmLocalNinjaGenerator.cxx
+++ b/Source/cmLocalNinjaGenerator.cxx
@@ -58,7 +58,7 @@ void cmLocalNinjaGenerator::Generate()
 #endif
 
   // We do that only once for the top CMakeLists.txt file.
-  if(this->IsRootMakefile())
+  if(this->Makefile->IsRootMakefile())
     {
     this->WriteBuildFileTop();
 
@@ -298,7 +298,7 @@ void cmLocalNinjaGenerator::WriteProcessedMakefile(std::ostream& os)
     << "# Write statements declared in CMakeLists.txt:" << std::endl
     << "# "
     << this->Makefile->GetDefinition("CMAKE_CURRENT_LIST_FILE") << std::endl;
-  if(this->IsRootMakefile())
+  if(this->Makefile->IsRootMakefile())
     os << "# Which is the root file." << std::endl;
   cmGlobalNinjaGenerator::WriteDivider(os);
   os << std::endl;
diff --git a/Source/cmLocalUnixMakefileGenerator3.h b/Source/cmLocalUnixMakefileGenerator3.h
index 4e4d146..b097c95 100644
--- a/Source/cmLocalUnixMakefileGenerator3.h
+++ b/Source/cmLocalUnixMakefileGenerator3.h
@@ -149,9 +149,6 @@ public:
   void AddImplicitDepends(cmTarget const& tgt, const std::string& lang,
                           const char* obj, const char* src);
 
-  void AppendGlobalTargetDepends(std::vector<std::string>& depends,
-                                 cmTarget& target);
-
   // write the target rules for the local Makefile into the stream
   void WriteLocalAllRules(std::ostream& ruleFileStream);
 
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 1d75f81..40c3885 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -105,7 +105,7 @@ public:
     ++it;
     if(it == this->VarStack.rend())
       {
-      cmLocalGenerator* plg = mf->GetLocalGenerator()->GetParent();
+      cmLocalGenerator* plg = mf->LocalGenerator->GetParent();
       if(!plg)
         {
         return false;
@@ -264,8 +264,8 @@ void cmMakefile::IssueMessage(cmake::MessageType t,
 
     if(!this->GetCMakeInstance()->GetIsInTryCompile())
       {
-      lfc.FilePath = this->LocalGenerator->Convert(lfc.FilePath,
-                                                   cmLocalGenerator::HOME);
+      cmOutputConverter converter(this->StateSnapshot);
+      lfc.FilePath = converter.Convert(lfc.FilePath, cmOutputConverter::HOME);
       }
     lfc.Line = 0;
     this->GetCMakeInstance()->IssueMessage(t, text, lfc);
@@ -1620,6 +1620,11 @@ void cmMakefile::PopMacroScope(bool reportError)
   this->PopFunctionBlockerBarrier(reportError);
 }
 
+bool cmMakefile::IsRootMakefile() const
+{
+  return !this->StateSnapshot.GetBuildsystemDirectoryParent().IsValid();
+}
+
 //----------------------------------------------------------------------------
 class cmMakefileCurrent
 {
@@ -1975,8 +1980,8 @@ void cmMakefile::LogUnused(const char* reason,
       lfc.FilePath = path;
       lfc.Line = 0;
       }
-    lfc.FilePath = this->LocalGenerator->Convert(lfc.FilePath,
-                                                 cmLocalGenerator::HOME);
+    cmOutputConverter converter(this->StateSnapshot);
+    lfc.FilePath = converter.Convert(lfc.FilePath, cmOutputConverter::HOME);
 
     if (this->CheckSystemVars ||
         cmSystemTools::IsSubDirectory(path,
@@ -2873,8 +2878,9 @@ cmake::MessageType cmMakefile::ExpandVariablesInStringNew(
                 {
                 std::ostringstream msg;
                 cmListFileContext lfc;
-                lfc.FilePath = this->LocalGenerator
-                    ->Convert(filename, cmLocalGenerator::HOME);
+                cmOutputConverter converter(this->StateSnapshot);
+                lfc.FilePath =
+                    converter.Convert(filename, cmOutputConverter::HOME);
                 lfc.Line = line;
                 msg << "uninitialized variable \'" << lookup << "\'";
                 this->GetCMakeInstance()->IssueMessage(cmake::AUTHOR_WARNING,
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index b3efb88..b3ab273 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -90,6 +90,9 @@ public:
    */
   void AddFunctionBlocker(cmFunctionBlocker* fb);
 
+  /// @return whether we are processing the top CMakeLists.txt file.
+  bool IsRootMakefile() const;
+
   /**
    * Remove the function blocker whose scope ends with the given command.
    * This returns ownership of the function blocker object.
diff --git a/Source/cmOutputConverter.cxx b/Source/cmOutputConverter.cxx
index db73a34..b0a30a1 100644
--- a/Source/cmOutputConverter.cxx
+++ b/Source/cmOutputConverter.cxx
@@ -27,7 +27,7 @@ cmOutputConverter::cmOutputConverter(cmState::Snapshot snapshot)
 std::string
 cmOutputConverter::ConvertToOutputForExistingCommon(const std::string& remote,
                                                     std::string const& result,
-                                                    OutputFormat format)
+                                                    OutputFormat format) const
 {
   // If this is a windows shell, the result has a space, and the path
   // already exists, we can use a short-path to reference it without a
@@ -50,7 +50,7 @@ cmOutputConverter::ConvertToOutputForExistingCommon(const std::string& remote,
 std::string
 cmOutputConverter::ConvertToOutputForExisting(const std::string& remote,
                                               RelativeRoot local,
-                                              OutputFormat format)
+                                              OutputFormat format) const
 {
   static_cast<void>(local);
 
@@ -65,7 +65,7 @@ cmOutputConverter::ConvertToOutputForExisting(const std::string& remote,
 std::string
 cmOutputConverter::ConvertToOutputForExisting(RelativeRoot remote,
                                               const std::string& local,
-                                              OutputFormat format)
+                                              OutputFormat format) const
 {
   // Perform standard conversion.
   std::string result = this->Convert(remote, local, format, true);
@@ -76,7 +76,7 @@ cmOutputConverter::ConvertToOutputForExisting(RelativeRoot remote,
 }
 
 //----------------------------------------------------------------------------
-const char* cmOutputConverter::GetRelativeRootPath(RelativeRoot relroot)
+const char* cmOutputConverter::GetRelativeRootPath(RelativeRoot relroot) const
 {
   switch (relroot)
     {
@@ -91,7 +91,7 @@ const char* cmOutputConverter::GetRelativeRootPath(RelativeRoot relroot)
 
 std::string cmOutputConverter::Convert(const std::string& source,
                                        RelativeRoot relative,
-                                       OutputFormat output)
+                                       OutputFormat output) const
 {
   // Convert the path to a relative path.
   std::string result = source;
@@ -125,7 +125,7 @@ std::string cmOutputConverter::Convert(const std::string& source,
 
 //----------------------------------------------------------------------------
 std::string cmOutputConverter::ConvertToOutputFormat(const std::string& source,
-                                                     OutputFormat output)
+                                                     OutputFormat output) const
 {
   std::string result = source;
   // Convert it to an output path.
@@ -163,7 +163,7 @@ std::string cmOutputConverter::ConvertToOutputFormat(const std::string& source,
 std::string cmOutputConverter::Convert(RelativeRoot remote,
                                       const std::string& local,
                                       OutputFormat output,
-                                      bool optional)
+                                      bool optional) const
 {
   const char* remotePath = this->GetRelativeRootPath(remote);
 
@@ -192,7 +192,7 @@ static bool cmOutputConverterNotAbove(const char* a, const char* b)
 std::string
 cmOutputConverter::ConvertToRelativePath(const std::vector<std::string>& local,
                                         const std::string& in_remote,
-                                        bool force)
+                                        bool force) const
 {
   // The path should never be quoted.
   assert(in_remote[0] != '\"');
@@ -318,7 +318,7 @@ static bool cmOutputConverterIsShellOperator(const std::string& str)
 std::string cmOutputConverter::EscapeForShell(const std::string& str,
                                              bool makeVars,
                                              bool forEcho,
-                                             bool useWatcomQuote)
+                                             bool useWatcomQuote) const
 {
   // Do not escape shell operators.
   if(cmOutputConverterIsShellOperator(str))
diff --git a/Source/cmOutputConverter.h b/Source/cmOutputConverter.h
index 1d3f8c7..482a64b 100644
--- a/Source/cmOutputConverter.h
+++ b/Source/cmOutputConverter.h
@@ -39,35 +39,35 @@ public:
   enum RelativeRoot { NONE, FULL, HOME, START, HOME_OUTPUT, START_OUTPUT };
   enum OutputFormat { UNCHANGED, MAKERULE, SHELL, WATCOMQUOTE, RESPONSE };
   std::string ConvertToOutputFormat(const std::string& source,
-                                    OutputFormat output);
+                                    OutputFormat output) const;
   std::string Convert(const std::string& remote, RelativeRoot local,
-                      OutputFormat output = UNCHANGED);
+                      OutputFormat output = UNCHANGED) const;
   std::string Convert(RelativeRoot remote, const std::string& local,
                       OutputFormat output = UNCHANGED,
-                      bool optional = false);
+                      bool optional = false) const;
 
   /**
     * Get path for the specified relative root.
     */
-  const char* GetRelativeRootPath(RelativeRoot relroot);
+  const char* GetRelativeRootPath(RelativeRoot relroot) const;
 
   ///! for existing files convert to output path and short path if spaces
   std::string ConvertToOutputForExisting(const std::string& remote,
                                          RelativeRoot local = START_OUTPUT,
-                                         OutputFormat format = SHELL);
+                                         OutputFormat format = SHELL) const;
 
   /** For existing path identified by RelativeRoot convert to output
       path and short path if spaces.  */
   std::string ConvertToOutputForExisting(RelativeRoot remote,
                                          const std::string& local = "",
-                                         OutputFormat format = SHELL);
+                                         OutputFormat format = SHELL) const;
 
   void SetLinkScriptShell(bool linkScriptShell);
 
   std::string EscapeForShell(const std::string& str,
                                     bool makeVars = false,
                                     bool forEcho = false,
-                                    bool useWatcomQuote = false);
+                                    bool useWatcomQuote = false) const;
 
   static std::string EscapeForCMake(const std::string& str);
 
@@ -88,14 +88,14 @@ public:
    */
   std::string ConvertToRelativePath(const std::vector<std::string>& local,
                                     const std::string& in_remote,
-                                    bool force = false);
+                                    bool force = false) const;
 
 private:
   cmState* GetState() const;
 
   std::string ConvertToOutputForExistingCommon(const std::string& remote,
                                                std::string const& result,
-                                               OutputFormat format);
+                                               OutputFormat format) const;
 
 private:
   cmState::Snapshot StateSnapshot;
diff --git a/Source/cmProjectCommand.cxx b/Source/cmProjectCommand.cxx
index 90bc111..46d7e01 100644
--- a/Source/cmProjectCommand.cxx
+++ b/Source/cmProjectCommand.cxx
@@ -53,7 +53,7 @@ bool cmProjectCommand
   // CMAKE_PROJECT_NAME will match PROJECT_NAME, and cmake --build
   // will work.
   if(!this->Makefile->GetDefinition("CMAKE_PROJECT_NAME")
-     || (this->Makefile->GetLocalGenerator()->IsRootMakefile()))
+     || (this->Makefile->IsRootMakefile()))
     {
     this->Makefile->AddDefinition("CMAKE_PROJECT_NAME", args[0].c_str());
     this->Makefile->AddCacheDefinition
diff --git a/Source/cmQtAutoGenerators.cxx b/Source/cmQtAutoGenerators.cxx
index f472ed8..53fea83 100644
--- a/Source/cmQtAutoGenerators.cxx
+++ b/Source/cmQtAutoGenerators.cxx
@@ -368,8 +368,7 @@ bool cmQtAutoGenerators::InitializeAutogenTarget(cmTarget* target)
 
 #if defined(_WIN32) && !defined(__CYGWIN__)
   bool usePRE_BUILD = false;
-  cmLocalGenerator* localGen = makefile->GetLocalGenerator();
-  cmGlobalGenerator* gg = localGen->GetGlobalGenerator();
+  cmGlobalGenerator* gg = makefile->GetGlobalGenerator();
   if(gg->GetName().find("Visual Studio") != std::string::npos)
     {
     cmGlobalVisualStudioGenerator* vsgg =
diff --git a/Source/cmState.cxx b/Source/cmState.cxx
index a13c13f..58500cc 100644
--- a/Source/cmState.cxx
+++ b/Source/cmState.cxx
@@ -219,13 +219,13 @@ void cmState::RemoveCacheEntryProperty(std::string const& key,
        ->GetCacheIterator(key.c_str()).SetProperty(propertyName, (void*)0);
 }
 
-void cmState::Reset()
+cmState::Snapshot cmState::Reset()
 {
   this->GlobalProperties.clear();
   this->PropertyDefinitions.clear();
 
   this->BuildsystemDirectory.Truncate();
-  this->SnapshotData.Truncate();
+  PositionType pos = this->SnapshotData.Truncate();
 
   this->DefineProperty
     ("RULE_LAUNCH_COMPILE", cmProperty::DIRECTORY,
@@ -246,6 +246,8 @@ void cmState::Reset()
   this->DefineProperty
     ("RULE_LAUNCH_CUSTOM", cmProperty::TARGET,
      "", "", true);
+
+  return Snapshot(this, pos);
 }
 
 void cmState::DefineProperty(const std::string& name,
@@ -741,14 +743,14 @@ void cmState::Snapshot::SetCurrentBinaryDirectory(std::string const& dir)
 }
 
 std::vector<std::string> const&
-cmState::Snapshot::GetCurrentSourceDirectoryComponents()
+cmState::Snapshot::GetCurrentSourceDirectoryComponents() const
 {
   return this->Position->BuildSystemDirectory
       ->CurrentSourceDirectoryComponents;
 }
 
 std::vector<std::string> const&
-cmState::Snapshot::GetCurrentBinaryDirectoryComponents()
+cmState::Snapshot::GetCurrentBinaryDirectoryComponents() const
 {
   return this->Position->BuildSystemDirectory
       ->CurrentBinaryDirectoryComponents;
diff --git a/Source/cmState.h b/Source/cmState.h
index 353a6c6..9c7574f 100644
--- a/Source/cmState.h
+++ b/Source/cmState.h
@@ -43,8 +43,10 @@ public:
     const char* GetCurrentBinaryDirectory() const;
     void SetCurrentBinaryDirectory(std::string const& dir);
 
-    std::vector<std::string> const& GetCurrentSourceDirectoryComponents();
-    std::vector<std::string> const& GetCurrentBinaryDirectoryComponents();
+    std::vector<std::string> const&
+    GetCurrentSourceDirectoryComponents() const;
+    std::vector<std::string> const&
+    GetCurrentBinaryDirectoryComponents() const;
 
     const char* GetRelativePathTopSource() const;
     const char* GetRelativePathTopBinary() const;
@@ -103,7 +105,7 @@ public:
   void RemoveCacheEntryProperty(std::string const& key,
                                 std::string const& propertyName);
 
-  void Reset();
+  Snapshot Reset();
   // Define a property
   void DefineProperty(const std::string& name, cmProperty::ScopeType scope,
                       const char *ShortDescription,
diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index eeb6575..e51b260 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -186,7 +186,7 @@ cmake::~cmake()
 
 void cmake::CleanupCommandsAndMacros()
 {
-  this->State->Reset();
+  this->CurrentSnapshot = this->State->Reset();
   this->State->RemoveUserDefinedCommands();
 }
 
@@ -370,6 +370,7 @@ void cmake::ReadListFile(const std::vector<std::string>& args,
   // read in the list file to fill the cache
   if(path)
     {
+    this->CurrentSnapshot = this->State->Reset();
     std::string homeDir = this->GetHomeDirectory();
     std::string homeOutputDir = this->GetHomeOutputDirectory();
     this->SetHomeDirectory(cmSystemTools::GetCurrentWorkingDirectory());