Merge topic 'refactor-state-initialization'

2bf7de16 Subdirs: Initialize from parent before configuring.
0aa34de5 cmState: Initialize properties immediately.
20b95ef8 cmState: Initialize default definitions immediately.
841164cb cmState: Initialize current directories immediately.
2c219baf cmState: Initialize top level source directories immediately.
84e0776e cmMakefile: Set default internal definitions directly.
871ab98d cmMakefile: Set internal definitions directly.

15 files changed, 126 insertions, 88 deletions

diff --git a/Source/CPack/cmCPackGenerator.cxx b/Source/CPack/cmCPackGenerator.cxx
index 2f69c25..22d4bf0 100644
--- a/Source/CPack/cmCPackGenerator.cxx
+++ b/Source/CPack/cmCPackGenerator.cxx
@@ -717,6 +717,7 @@ int cmCPackGenerator::InstallProjectViaInstallCMakeProjects(
         cmake cm;
         cm.SetHomeDirectory("");
         cm.SetHomeOutputDirectory("");
+        cm.GetCurrentSnapshot().SetDefaultDefinitions();
         cm.AddCMakePaths();
         cm.SetProgressCallback(cmCPackGeneratorProgress, this);
         cmGlobalGenerator gg(&cm);
diff --git a/Source/CPack/cpack.cxx b/Source/CPack/cpack.cxx
index f6447ec..c08897f 100644
--- a/Source/CPack/cpack.cxx
+++ b/Source/CPack/cpack.cxx
@@ -199,6 +199,7 @@ int main (int argc, char const* const* argv)
   cmake cminst;
   cminst.SetHomeDirectory("");
   cminst.SetHomeOutputDirectory("");
+  cminst.GetCurrentSnapshot().SetDefaultDefinitions();
   cminst.GetState()->RemoveUnscriptableCommands();
   cmGlobalGenerator cmgg(&cminst);
   cmsys::auto_ptr<cmMakefile> globalMF(
diff --git a/Source/CTest/cmCTestLaunch.cxx b/Source/CTest/cmCTestLaunch.cxx
index ca5d05a..749a5be 100644
--- a/Source/CTest/cmCTestLaunch.cxx
+++ b/Source/CTest/cmCTestLaunch.cxx
@@ -736,6 +736,7 @@ void cmCTestLaunch::LoadConfig()
   cmake cm;
   cm.SetHomeDirectory("");
   cm.SetHomeOutputDirectory("");
+  cm.GetCurrentSnapshot().SetDefaultDefinitions();
   cmGlobalGenerator gg(&cm);
   cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(&gg, cm.GetCurrentSnapshot()));
   std::string fname = this->LogDir;
diff --git a/Source/CTest/cmCTestScriptHandler.cxx b/Source/CTest/cmCTestScriptHandler.cxx
index b9016af..ee15271 100644
--- a/Source/CTest/cmCTestScriptHandler.cxx
+++ b/Source/CTest/cmCTestScriptHandler.cxx
@@ -314,6 +314,7 @@ void cmCTestScriptHandler::CreateCMake()
   this->CMake = new cmake;
   this->CMake->SetHomeDirectory("");
   this->CMake->SetHomeOutputDirectory("");
+  this->CMake->GetCurrentSnapshot().SetDefaultDefinitions();
   this->CMake->AddCMakePaths();
   this->GlobalGenerator = new cmGlobalGenerator(this->CMake);
 
diff --git a/Source/CTest/cmCTestTestHandler.cxx b/Source/CTest/cmCTestTestHandler.cxx
index 968a307..fa3b416 100644
--- a/Source/CTest/cmCTestTestHandler.cxx
+++ b/Source/CTest/cmCTestTestHandler.cxx
@@ -1590,6 +1590,7 @@ void cmCTestTestHandler::GetListOfTests()
   cmake cm;
   cm.SetHomeDirectory("");
   cm.SetHomeOutputDirectory("");
+  cm.GetCurrentSnapshot().SetDefaultDefinitions();
   cmGlobalGenerator gg(&cm);
   cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(&gg, cm.GetCurrentSnapshot()));
   mf->AddDefinition("CTEST_CONFIGURATION_TYPE",
diff --git a/Source/cmCTest.cxx b/Source/cmCTest.cxx
index 67eb042..f3e7121 100644
--- a/Source/cmCTest.cxx
+++ b/Source/cmCTest.cxx
@@ -517,6 +517,7 @@ int cmCTest::Initialize(const char* binary_dir, cmCTestStartCommand* command)
   cmake cm;
   cm.SetHomeDirectory("");
   cm.SetHomeOutputDirectory("");
+  cm.GetCurrentSnapshot().SetDefaultDefinitions();
   cmGlobalGenerator gg(&cm);
   cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(&gg, cm.GetCurrentSnapshot()));
   if ( !this->ReadCustomConfigurationFileTree(this->BinaryDir.c_str(),
diff --git a/Source/cmGlobalUnixMakefileGenerator3.cxx b/Source/cmGlobalUnixMakefileGenerator3.cxx
index 218e702..41df270 100644
--- a/Source/cmGlobalUnixMakefileGenerator3.cxx
+++ b/Source/cmGlobalUnixMakefileGenerator3.cxx
@@ -589,6 +589,7 @@ void cmGlobalUnixMakefileGenerator3
         (this->CMakeInstance->GetHomeDirectory());
       snapshot.GetDirectory().SetCurrentBinary
         (this->CMakeInstance->GetHomeOutputDirectory());
+      snapshot.SetDefaultDefinitions();
       mf = new cmMakefile(this, snapshot);
       }
 
diff --git a/Source/cmGraphVizWriter.cxx b/Source/cmGraphVizWriter.cxx
index 2023697..b3cf91e 100644
--- a/Source/cmGraphVizWriter.cxx
+++ b/Source/cmGraphVizWriter.cxx
@@ -67,6 +67,7 @@ void cmGraphVizWriter::ReadSettings(const char* settingsFileName,
   cmake cm;
   cm.SetHomeDirectory("");
   cm.SetHomeOutputDirectory("");
+  cm.GetCurrentSnapshot().SetDefaultDefinitions();
   cmGlobalGenerator ggi(&cm);
   cmsys::auto_ptr<cmMakefile> mf(
         new cmMakefile(&ggi, cm.GetCurrentSnapshot()));
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 73d3522..ce95b2c 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -50,14 +50,11 @@ cmMakefile::cmMakefile(cmGlobalGenerator* globalGenerator,
 {
   this->IsSourceFileTryCompile = false;
 
-  // Initialize these first since AddDefaultDefinitions calls AddDefinition
   this->WarnUnused = this->GetCMakeInstance()->GetWarnUnused();
   this->CheckSystemVars = this->GetCMakeInstance()->GetCheckSystemVars();
 
   this->SuppressWatches = false;
 
-  // Setup the default include file regular expression (match everything).
-  this->SetProperty("INCLUDE_REGULAR_EXPRESSION", "^.*$");
   // Setup the default include complaint regular expression (match nothing).
   this->ComplainFileRegularExpression = "^$";
   // Source and header file extensions that we can handle
@@ -88,8 +85,6 @@ cmMakefile::cmMakefile(cmGlobalGenerator* globalGenerator,
 
   this->DefineFlags = " ";
 
-  this->AddDefaultDefinitions();
-
   this->cmDefineRegex.compile("#cmakedefine[ \t]+([A-Za-z_0-9]*)");
   this->cmDefine01Regex.compile("#cmakedefine01[ \t]+([A-Za-z_0-9]*)");
   this->cmAtVarRegex.compile("(@[A-Za-z_0-9/.+-]+@)");
@@ -119,36 +114,6 @@ cmMakefile::cmMakefile(cmGlobalGenerator* globalGenerator,
   this->AddSourceGroup("Resources", "\\.plist$");
   this->AddSourceGroup("Object Files", "\\.(lo|o|obj)$");
 #endif
-
-  this->AddDefinition("CMAKE_SOURCE_DIR",
-                      this->GetCMakeInstance()->GetHomeDirectory());
-  this->AddDefinition("CMAKE_BINARY_DIR",
-                      this->GetCMakeInstance()->GetHomeOutputDirectory());
-  {
-  const char* dir = this->StateSnapshot.GetDirectory().GetCurrentSource();
-  if (dir)
-    {
-    this->AddDefinition("CMAKE_CURRENT_SOURCE_DIR", dir);
-    }
-  else
-    {
-    this->AddDefinition("CMAKE_CURRENT_SOURCE_DIR",
-                        this->GetCMakeInstance()->GetHomeDirectory());
-    }
-  }
-  {
-  const char* dir = this->StateSnapshot.GetDirectory().GetCurrentBinary();
-  if (dir)
-    {
-    cmSystemTools::MakeDirectory(dir);
-    this->AddDefinition("CMAKE_CURRENT_BINARY_DIR", dir);
-    }
-  else
-    {
-    this->AddDefinition("CMAKE_CURRENT_BINARY_DIR",
-                        this->GetCMakeInstance()->GetHomeOutputDirectory());
-    }
-  }
 }
 
 cmMakefile::~cmMakefile()
@@ -1682,6 +1647,7 @@ void cmMakefile::Configure()
   std::vector<cmMakefile*>::iterator sdi = subdirs.begin();
   for (; sdi != subdirs.end(); ++sdi)
     {
+    (*sdi)->StateSnapshot.InitializeFromParent_ForSubdirsCommand();
     this->ConfigureSubDirectory(*sdi);
     }
 
@@ -1761,6 +1727,8 @@ void cmMakefile::AddSubDirectory(const std::string& srcPath,
   newSnapshot.GetDirectory().SetCurrentSource(srcPath);
   newSnapshot.GetDirectory().SetCurrentBinary(binPath);
 
+  cmSystemTools::MakeDirectory(binPath.c_str());
+
   cmMakefile* subMf = new cmMakefile(this->GlobalGenerator, newSnapshot);
   this->GetGlobalGenerator()->AddMakefile(subMf);
 
@@ -3152,58 +3120,6 @@ void cmMakefile::RemoveVariablesInString(std::string& source,
     }
 }
 
-/**
- * Add the default definitions to the makefile.  These values must not
- * be dependent on anything that isn't known when this cmMakefile instance
- * is constructed.
- */
-void cmMakefile::AddDefaultDefinitions()
-{
-/* Up to CMake 2.4 here only WIN32, UNIX and APPLE were set.
-  With CMake must separate between target and host platform. In most cases
-  the tests for WIN32, UNIX and APPLE will be for the target system, so an
-  additional set of variables for the host system is required ->
-  CMAKE_HOST_WIN32, CMAKE_HOST_UNIX, CMAKE_HOST_APPLE.
-  WIN32, UNIX and APPLE are now set in the platform files in
-  Modules/Platforms/.
-  To keep cmake scripts (-P) and custom language and compiler modules
-  working, these variables are still also set here in this place, but they
-  will be reset in CMakeSystemSpecificInformation.cmake before the platform
-  files are executed. */
-#if defined(_WIN32)
-  this->AddDefinition("WIN32", "1");
-  this->AddDefinition("CMAKE_HOST_WIN32", "1");
-#else
-  this->AddDefinition("UNIX", "1");
-  this->AddDefinition("CMAKE_HOST_UNIX", "1");
-#endif
-#if defined(__CYGWIN__)
-  if(cmSystemTools::IsOn(cmSystemTools::GetEnv("CMAKE_LEGACY_CYGWIN_WIN32")))
-    {
-    this->AddDefinition("WIN32", "1");
-    this->AddDefinition("CMAKE_HOST_WIN32", "1");
-    }
-#endif
-#if defined(__APPLE__)
-  this->AddDefinition("APPLE", "1");
-  this->AddDefinition("CMAKE_HOST_APPLE", "1");
-#endif
-
-  char temp[1024];
-  sprintf(temp, "%d", cmVersion::GetMinorVersion());
-  this->AddDefinition("CMAKE_MINOR_VERSION", temp);
-  sprintf(temp, "%d", cmVersion::GetMajorVersion());
-  this->AddDefinition("CMAKE_MAJOR_VERSION", temp);
-  sprintf(temp, "%d", cmVersion::GetPatchVersion());
-  this->AddDefinition("CMAKE_PATCH_VERSION", temp);
-  sprintf(temp, "%d", cmVersion::GetTweakVersion());
-  this->AddDefinition("CMAKE_TWEAK_VERSION", temp);
-  this->AddDefinition("CMAKE_VERSION", cmVersion::GetCMakeVersion());
-
-  this->AddDefinition("CMAKE_FILES_DIRECTORY",
-                      cmake::GetCMakeFilesDirectory());
-}
-
 //----------------------------------------------------------------------------
 std::string
 cmMakefile::GetConfigurations(std::vector<std::string>& configs,
diff --git a/Source/cmMakefile.h b/Source/cmMakefile.h
index 0a8dcd5..96d5849 100644
--- a/Source/cmMakefile.h
+++ b/Source/cmMakefile.h
@@ -867,7 +867,6 @@ private:
   friend class cmMakeDepend;    // make depend needs direct access
                                 // to the Sources array
 
-  void AddDefaultDefinitions();
   typedef std::vector<cmFunctionBlocker*> FunctionBlockersType;
   FunctionBlockersType FunctionBlockers;
   std::vector<FunctionBlockersType::size_type> FunctionBlockerBarriers;
diff --git a/Source/cmQtAutoGenerators.cxx b/Source/cmQtAutoGenerators.cxx
index 36b1305..fc690f8 100644
--- a/Source/cmQtAutoGenerators.cxx
+++ b/Source/cmQtAutoGenerators.cxx
@@ -175,6 +175,7 @@ bool cmQtAutoGenerators::Run(const std::string& targetDirectory,
   cmake cm;
   cm.SetHomeOutputDirectory(targetDirectory);
   cm.SetHomeDirectory(targetDirectory);
+  cm.GetCurrentSnapshot().SetDefaultDefinitions();
   cmGlobalGenerator gg(&cm);
 
   cmState::Snapshot snapshot = cm.GetCurrentSnapshot();
diff --git a/Source/cmState.cxx b/Source/cmState.cxx
index 72c7330..825204c 100644
--- a/Source/cmState.cxx
+++ b/Source/cmState.cxx
@@ -12,6 +12,7 @@
 #include "cmState.h"
 
 #include "cmake.h"
+#include "cmVersion.h"
 #include "cmCacheManager.h"
 #include "cmCommand.h"
 #include "cmAlgorithms.h"
@@ -306,11 +307,21 @@ cmState::Snapshot cmState::Reset()
   pos->PolicyScope = this->PolicyStack.Root();
   assert(pos->Policies.IsValid());
   assert(pos->PolicyRoot.IsValid());
+
+  {
+  std::string srcDir =
+      cmDefinitions::Get("CMAKE_SOURCE_DIR", pos->Vars, pos->Root);
+  std::string binDir =
+      cmDefinitions::Get("CMAKE_BINARY_DIR", pos->Vars, pos->Root);
   this->VarTree.Clear();
   pos->Vars = this->VarTree.Extend(this->VarTree.Root());
   pos->Parent = this->VarTree.Root();
   pos->Root = this->VarTree.Root();
 
+  pos->Vars->Set("CMAKE_SOURCE_DIR", srcDir.c_str());
+  pos->Vars->Set("CMAKE_BINARY_DIR", binDir.c_str());
+  }
+
   this->DefineProperty
     ("RULE_LAUNCH_COMPILE", cmProperty::DIRECTORY,
      "", "", true);
@@ -837,7 +848,9 @@ cmState::CreateBuildsystemDirectorySnapshot(Snapshot originSnapshot,
 
   cmState::Snapshot snapshot = cmState::Snapshot(this, pos);
   originSnapshot.Position->BuildSystemDirectory->Children.push_back(snapshot);
+  snapshot.SetDefaultDefinitions();
   snapshot.InitializeFromParent();
+  snapshot.SetDirectoryDefinitions();
   return snapshot;
 }
 
@@ -1009,6 +1022,8 @@ void cmState::Directory::SetCurrentSource(std::string const& dir)
       loc,
       this->DirectoryState->CurrentSourceDirectoryComponents);
   this->ComputeRelativePathTopSource();
+
+  this->Snapshot_.SetDefinition("CMAKE_CURRENT_SOURCE_DIR", loc.c_str());
 }
 
 const char* cmState::Directory::GetCurrentBinary() const
@@ -1027,6 +1042,8 @@ void cmState::Directory::SetCurrentBinary(std::string const& dir)
       loc,
       this->DirectoryState->CurrentBinaryDirectoryComponents);
   this->ComputeRelativePathTopBinary();
+
+  this->Snapshot_.SetDefinition("CMAKE_CURRENT_BINARY_DIR", loc.c_str());
 }
 
 void cmState::Snapshot::SetListFile(const std::string& listfile)
@@ -1318,6 +1335,70 @@ void InitializeContentFromParent(T& parentContent,
   contentEndPosition = thisContent.size();
 }
 
+void cmState::Snapshot::SetDefaultDefinitions()
+{
+  /* Up to CMake 2.4 here only WIN32, UNIX and APPLE were set.
+    With CMake must separate between target and host platform. In most cases
+    the tests for WIN32, UNIX and APPLE will be for the target system, so an
+    additional set of variables for the host system is required ->
+    CMAKE_HOST_WIN32, CMAKE_HOST_UNIX, CMAKE_HOST_APPLE.
+    WIN32, UNIX and APPLE are now set in the platform files in
+    Modules/Platforms/.
+    To keep cmake scripts (-P) and custom language and compiler modules
+    working, these variables are still also set here in this place, but they
+    will be reset in CMakeSystemSpecificInformation.cmake before the platform
+    files are executed. */
+  #if defined(_WIN32)
+    this->SetDefinition("WIN32", "1");
+    this->SetDefinition("CMAKE_HOST_WIN32", "1");
+  #else
+    this->SetDefinition("UNIX", "1");
+    this->SetDefinition("CMAKE_HOST_UNIX", "1");
+  #endif
+  #if defined(__CYGWIN__)
+    if(cmSystemTools::IsOn(cmSystemTools::GetEnv("CMAKE_LEGACY_CYGWIN_WIN32")))
+      {
+      this->SetDefinition("WIN32", "1");
+      this->SetDefinition("CMAKE_HOST_WIN32", "1");
+      }
+  #endif
+  #if defined(__APPLE__)
+    this->SetDefinition("APPLE", "1");
+    this->SetDefinition("CMAKE_HOST_APPLE", "1");
+  #endif
+
+    char temp[1024];
+    sprintf(temp, "%d", cmVersion::GetMinorVersion());
+    this->SetDefinition("CMAKE_MINOR_VERSION", temp);
+    sprintf(temp, "%d", cmVersion::GetMajorVersion());
+    this->SetDefinition("CMAKE_MAJOR_VERSION", temp);
+    sprintf(temp, "%d", cmVersion::GetPatchVersion());
+    this->SetDefinition("CMAKE_PATCH_VERSION", temp);
+    sprintf(temp, "%d", cmVersion::GetTweakVersion());
+    this->SetDefinition("CMAKE_TWEAK_VERSION", temp);
+    this->SetDefinition("CMAKE_VERSION",
+                                      cmVersion::GetCMakeVersion());
+
+    this->SetDefinition("CMAKE_FILES_DIRECTORY",
+                        cmake::GetCMakeFilesDirectory());
+
+  // Setup the default include file regular expression (match everything).
+  this->Position->BuildSystemDirectory
+      ->Properties.SetProperty("INCLUDE_REGULAR_EXPRESSION", "^.*$");
+}
+
+void cmState::Snapshot::SetDirectoryDefinitions()
+{
+  this->SetDefinition("CMAKE_SOURCE_DIR",
+                      this->State->GetSourceDirectory());
+  this->SetDefinition("CMAKE_CURRENT_SOURCE_DIR",
+                      this->State->GetSourceDirectory());
+  this->SetDefinition("CMAKE_BINARY_DIR",
+                      this->State->GetBinaryDirectory());
+  this->SetDefinition("CMAKE_CURRENT_BINARY_DIR",
+                      this->State->GetBinaryDirectory());
+}
+
 void cmState::Snapshot::InitializeFromParent()
 {
   PositionType parent = this->Position->DirectoryParent;
@@ -1366,6 +1447,20 @@ std::string cmState::Snapshot::GetProjectName() const
   return this->Position->BuildSystemDirectory->ProjectName;
 }
 
+void cmState::Snapshot::InitializeFromParent_ForSubdirsCommand()
+{
+  std::string currentSrcDir = this->GetDefinition("CMAKE_CURRENT_SOURCE_DIR");
+  std::string currentBinDir = this->GetDefinition("CMAKE_CURRENT_BINARY_DIR");
+  this->InitializeFromParent();
+  this->SetDefinition("CMAKE_SOURCE_DIR",
+                      this->State->GetSourceDirectory());
+  this->SetDefinition("CMAKE_BINARY_DIR",
+                      this->State->GetBinaryDirectory());
+
+  this->SetDefinition("CMAKE_CURRENT_SOURCE_DIR", currentSrcDir.c_str());
+  this->SetDefinition("CMAKE_CURRENT_BINARY_DIR", currentBinDir.c_str());
+}
+
 cmState::Directory::Directory(
     cmLinkedTree<BuildsystemDirectoryStateType>::iterator iter,
     const cmState::Snapshot& snapshot)
diff --git a/Source/cmState.h b/Source/cmState.h
index 2f66f7f..f2c0c6f 100644
--- a/Source/cmState.h
+++ b/Source/cmState.h
@@ -90,12 +90,17 @@ public:
     void SetProjectName(std::string const& name);
     std::string GetProjectName() const;
 
+    void InitializeFromParent_ForSubdirsCommand();
+
     struct StrictWeakOrder
     {
       bool operator()(const cmState::Snapshot& lhs,
                       const cmState::Snapshot& rhs) const;
     };
 
+    void SetDirectoryDefinitions();
+    void SetDefaultDefinitions();
+
   private:
     friend bool operator==(const cmState::Snapshot& lhs,
                            const cmState::Snapshot& rhs);
diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 6846f1b..7d499de 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -186,6 +186,7 @@ void cmake::CleanupCommandsAndMacros()
 {
   this->CurrentSnapshot = this->State->Reset();
   this->State->RemoveUserDefinedCommands();
+  this->CurrentSnapshot.SetDefaultDefinitions();
 }
 
 // Parse the args
@@ -378,6 +379,7 @@ void cmake::ReadListFile(const std::vector<std::string>& args,
       (cmSystemTools::GetCurrentWorkingDirectory());
     snapshot.GetDirectory().SetCurrentSource
       (cmSystemTools::GetCurrentWorkingDirectory());
+    snapshot.SetDefaultDefinitions();
     cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(gg, snapshot));
     if (this->GetWorkingMode() != NORMAL_MODE)
       {
@@ -420,6 +422,7 @@ bool cmake::FindPackage(const std::vector<std::string>& args)
   snapshot.GetDirectory().SetCurrentSource
     (cmSystemTools::GetCurrentWorkingDirectory());
   // read in the list file to fill the cache
+  snapshot.SetDefaultDefinitions();
   cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(gg, snapshot));
   cmsys::auto_ptr<cmLocalGenerator> lg(gg->CreateLocalGenerator(mf.get()));
 
@@ -980,6 +983,10 @@ cmGlobalGenerator* cmake::CreateGlobalGenerator(const std::string& gname)
 void cmake::SetHomeDirectory(const std::string& dir)
 {
   this->State->SetSourceDirectory(dir);
+  if (this->CurrentSnapshot.IsValid())
+    {
+    this->CurrentSnapshot.SetDefinition("CMAKE_SOURCE_DIR", dir);
+    }
 }
 
 const char* cmake::GetHomeDirectory() const
@@ -990,6 +997,10 @@ const char* cmake::GetHomeDirectory() const
 void cmake::SetHomeOutputDirectory(const std::string& dir)
 {
   this->State->SetBinaryDirectory(dir);
+  if (this->CurrentSnapshot.IsValid())
+    {
+    this->CurrentSnapshot.SetDefinition("CMAKE_BINARY_DIR", dir);
+    }
 }
 
 const char* cmake::GetHomeOutputDirectory() const
@@ -1920,6 +1931,7 @@ int cmake::CheckBuildSystem()
   cmake cm;
   cm.SetHomeDirectory("");
   cm.SetHomeOutputDirectory("");
+  cm.GetCurrentSnapshot().SetDefaultDefinitions();
   cmGlobalGenerator gg(&cm);
   cmsys::auto_ptr<cmMakefile> mf(new cmMakefile(&gg, cm.GetCurrentSnapshot()));
   if(!mf->ReadListFile(this->CheckBuildSystemArgument.c_str()) ||
@@ -1950,6 +1962,7 @@ int cmake::CheckBuildSystem()
       ggd(this->CreateGlobalGenerator(genName));
     if(ggd.get())
       {
+      cm.GetCurrentSnapshot().SetDefaultDefinitions();
       cmsys::auto_ptr<cmMakefile> mfd(new cmMakefile(ggd.get(),
                                                     cm.GetCurrentSnapshot()));
       cmsys::auto_ptr<cmLocalGenerator> lgd(
diff --git a/Source/cmcmd.cxx b/Source/cmcmd.cxx
index ca46111..be492ed 100644
--- a/Source/cmcmd.cxx
+++ b/Source/cmcmd.cxx
@@ -765,6 +765,7 @@ int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
       startOutDir = cmSystemTools::CollapseFullPath(startOutDir);
       cm.SetHomeDirectory(homeDir);
       cm.SetHomeOutputDirectory(homeOutDir);
+      cm.GetCurrentSnapshot().SetDefaultDefinitions();
       if(cmGlobalGenerator* ggd = cm.CreateGlobalGenerator(gen))
         {
         cm.SetGlobalGenerator(ggd);