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/*=========================================================================

  Program:   CMake - Cross-Platform Makefile Generator
  Module:    $RCSfile$
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

  Copyright (c) 2002 Kitware, Inc., Insight Consortium.  All rights reserved.
  See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#include "cmMakefile.h"
#include "cmVersion.h"
#include "cmCommand.h"
#include "cmSourceFile.h"
#include "cmSystemTools.h"
#include "cmGlobalGenerator.h"
#include "cmLocalGenerator.h"
#include "cmCommands.h"
#include "cmCacheManager.h"
#include "cmFunctionBlocker.h"
#include "cmListFileCache.h"
#include "cmCommandArgumentParserHelper.h"
#include "cmTest.h"
#ifdef CMAKE_BUILD_WITH_CMAKE
#  include "cmVariableWatch.h"
#endif
#include "cmInstallGenerator.h"
#include "cmake.h"
#include <stdlib.h> // required for atoi

#include <cmsys/RegularExpression.hxx>

#include <ctype.h> // for isspace

// default is not to be building executables
cmMakefile::cmMakefile()
{
  // Setup the default include file regular expression (match everything).
  this->IncludeFileRegularExpression = "^.*$";
  // Setup the default include complaint regular expression (match nothing).
  this->ComplainFileRegularExpression = "^$";
  // Source and header file extensions that we can handle

  // Set up a list of source and header extensions
  // these are used to find files when the extension 
  // is not given
  // The "c" extension MUST precede the "C" extension.
  this->SourceFileExtensions.push_back( "c" );
  this->SourceFileExtensions.push_back( "C" );
  
  this->SourceFileExtensions.push_back( "c++" );
  this->SourceFileExtensions.push_back( "cc" );
  this->SourceFileExtensions.push_back( "cpp" );
  this->SourceFileExtensions.push_back( "cxx" );
  this->SourceFileExtensions.push_back( "m" );
  this->SourceFileExtensions.push_back( "M" ); 
  this->SourceFileExtensions.push_back( "mm" );

  this->HeaderFileExtensions.push_back( "h" );
  this->HeaderFileExtensions.push_back( "hh" );
  this->HeaderFileExtensions.push_back( "h++" );
  this->HeaderFileExtensions.push_back( "hm" );
  this->HeaderFileExtensions.push_back( "hpp" );
  this->HeaderFileExtensions.push_back( "hxx" );
  this->HeaderFileExtensions.push_back( "in" );
  this->HeaderFileExtensions.push_back( "txx" );
  
  this->DefineFlags = " ";
  this->LocalGenerator = 0;

#if defined(CMAKE_BUILD_WITH_CMAKE)
  this->AddSourceGroup("", "^.*$");
  this->AddSourceGroup
    ("Source Files",
     "\\.(C|M|c|c\\+\\+|cc|cpp|cxx|m|mm|rc|def|r|odl|idl|hpj|bat)$");
  this->AddSourceGroup("Header Files", 
                       "\\.(h|hh|h\\+\\+|hm|hpp|hxx|in|txx|inl)$");
  this->AddSourceGroup("CMake Rules", "\\.rule$");
  this->AddSourceGroup("Resources", "\\.plist$");
#endif
  this->AddDefaultDefinitions();
  this->cmDefineRegex.compile("#cmakedefine[ \t]+([A-Za-z_0-9]*)");
  this->cmDefine01Regex.compile("#cmakedefine01[ \t]+([A-Za-z_0-9]*)");

  this->PreOrder = false;
}

cmMakefile::cmMakefile(const cmMakefile& mf)
{
  this->Prefix = mf.Prefix;
  this->AuxSourceDirectories = mf.AuxSourceDirectories;
  this->cmStartDirectory = mf.cmStartDirectory; 
  this->StartOutputDirectory = mf.StartOutputDirectory; 
  this->cmHomeDirectory = mf.cmHomeDirectory; 
  this->HomeOutputDirectory = mf.HomeOutputDirectory;
  this->cmCurrentListFile = mf.cmCurrentListFile;
  this->ProjectName = mf.ProjectName;
  this->Targets = mf.Targets;
  this->SourceFiles = mf.SourceFiles;
  this->Tests = mf.Tests;
  this->IncludeDirectories = mf.IncludeDirectories;
  this->LinkDirectories = mf.LinkDirectories;
  this->SystemIncludeDirectories = mf.SystemIncludeDirectories;
  this->ListFiles = mf.ListFiles;
  this->OutputFiles = mf.OutputFiles;
  this->LinkLibraries = mf.LinkLibraries;
  this->InstallGenerators = mf.InstallGenerators;
  this->IncludeFileRegularExpression = mf.IncludeFileRegularExpression;
  this->ComplainFileRegularExpression = mf.ComplainFileRegularExpression;
  this->SourceFileExtensions = mf.SourceFileExtensions;
  this->HeaderFileExtensions = mf.HeaderFileExtensions;
  this->DefineFlags = mf.DefineFlags;

#if defined(CMAKE_BUILD_WITH_CMAKE)
  this->SourceGroups = mf.SourceGroups;
#endif

  this->Definitions = mf.Definitions;
  this->LocalGenerator = mf.LocalGenerator;
  this->FunctionBlockers = mf.FunctionBlockers;
  this->DataMap = mf.DataMap;
  this->MacrosMap = mf.MacrosMap;
  this->SubDirectoryOrder = mf.SubDirectoryOrder;
  this->TemporaryDefinitionKey = mf.TemporaryDefinitionKey;
  this->Properties = mf.Properties;
  this->PreOrder = mf.PreOrder;
  this->ListFileStack = mf.ListFileStack;
}


unsigned int cmMakefile::GetCacheMajorVersion()
{
  if(const char* vstr =
     this->GetCacheManager()->GetCacheValue("CMAKE_CACHE_MAJOR_VERSION"))
    {
    unsigned int v=0;
    if(sscanf(vstr, "%u", &v) == 1)
      {
      return v;
      }
    }
  return 0;
}

unsigned int cmMakefile::GetCacheMinorVersion()
{
  if(const char* vstr =
     this->GetCacheManager()->GetCacheValue("CMAKE_CACHE_MINOR_VERSION"))
    {
    unsigned int v=0;
    if(sscanf(vstr, "%u", &v) == 1)
      {
      return v;
      }
    }
  return 0;
}


cmMakefile::~cmMakefile()
{
  for(std::vector<cmInstallGenerator*>::iterator
        i = this->InstallGenerators.begin();
      i != this->InstallGenerators.end(); ++i)
    {
    delete *i;
    }
  for(std::vector<cmSourceFile*>::iterator i = this->SourceFiles.begin();
      i != this->SourceFiles.end(); ++i)
    {
    delete *i;
    }
  for(std::vector<cmTest*>::iterator i = this->Tests.begin();
      i != this->Tests.end(); ++i)
    {
    delete *i;
    }
  for(unsigned int i=0; i < this->UsedCommands.size(); i++)
    {
    delete this->UsedCommands[i];
    }
  for(DataMapType::const_iterator d = this->DataMap.begin();
      d != this->DataMap.end(); ++d)
    {
    if(d->second)
      {
      delete d->second;
      }
    }
  std::list<cmFunctionBlocker *>::iterator pos;
  for (pos = this->FunctionBlockers.begin(); 
       pos != this->FunctionBlockers.end(); ++pos)
    {
    cmFunctionBlocker* b = *pos;
    delete b;
    }
  this->FunctionBlockers.clear();
}

void cmMakefile::PrintStringVector(const char* s, 
                                   const std::vector<std::string>& v) const
{
  std::cout << s << ": ( \n";
  for(std::vector<std::string>::const_iterator i = v.begin();
      i != v.end(); ++i)
    {
    std::cout << (*i).c_str() << " ";
    }
  std::cout << " )\n";
}

void cmMakefile
::PrintStringVector(const char* s, 
                    const std::vector<std::pair<cmStdString, bool> >& v) const
{
  std::cout << s << ": ( \n";
  for(std::vector<std::pair<cmStdString, bool> >::const_iterator i 
        = v.begin(); i != v.end(); ++i)
    {
    std::cout << i->first.c_str() << " " << i->second;
    }
  std::cout << " )\n";
}


// call print on all the classes in the makefile
void cmMakefile::Print()
{
  // print the class lists
  std::cout << "classes:\n";

  std::cout << " this->Targets: ";
  for (cmTargets::iterator l = this->Targets.begin();
       l != this->Targets.end(); l++)
    {
    std::cout << l->first << std::endl;
    }

  std::cout << " this->StartOutputDirectory; " << 
    this->StartOutputDirectory.c_str() << std::endl;
  std::cout << " this->HomeOutputDirectory; " << 
    this->HomeOutputDirectory.c_str() << std::endl;
  std::cout << " this->cmStartDirectory; " << 
    this->cmStartDirectory.c_str() << std::endl;
  std::cout << " this->cmHomeDirectory; " << 
    this->cmHomeDirectory.c_str() << std::endl;
  std::cout << " this->ProjectName; " 
            <<  this->ProjectName.c_str() << std::endl;
  this->PrintStringVector("this->IncludeDirectories;", 
                          this->IncludeDirectories);
  this->PrintStringVector("this->LinkDirectories", this->LinkDirectories);
#if defined(CMAKE_BUILD_WITH_CMAKE)
  for( std::vector<cmSourceGroup>::const_iterator i = 
         this->SourceGroups.begin(); i != this->SourceGroups.end(); ++i)
    {
    std::cout << "Source Group: " << i->GetName() << std::endl;
    }
#endif
}

bool cmMakefile::CommandExists(const char* name) const
{
  return this->GetCMakeInstance()->CommandExists(name);
}

bool cmMakefile::ExecuteCommand(const cmListFileFunction& lff)
{
  bool result = true;
  // quick return if blocked
  if(this->IsFunctionBlocked(lff))
    {
    // No error.
    return result;
    }

  std::string name = lff.Name;
  // execute the command
  cmCommand *rm = 
    this->GetCMakeInstance()->GetCommand(name.c_str());
  if(rm)
    {
    const char* versionValue
      = this->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
    int major = 0;
    int minor = 0;
    if ( versionValue )
      {
      sscanf(versionValue, "%d.%d", &major, &minor);
      }
    if ( rm->IsDeprecated(major, minor) )
      {
      cmOStringStream error;
      error << "Error in cmake code at\n"
            << lff.FilePath << ":" << lff.Line << ":\n"
            << rm->GetError() << std::endl
            << "Current CMake stack: " << this->GetListFileStack().c_str();
      cmSystemTools::Error(error.str().c_str());
      return false;
      }
    cmCommand* usedCommand = rm->Clone();
    usedCommand->SetMakefile(this);
    bool keepCommand = false;
    if(usedCommand->GetEnabled() && !cmSystemTools::GetFatalErrorOccured()  &&
       (!this->GetCMakeInstance()->GetScriptMode() || 
        usedCommand->IsScriptable()))
      {
      if(!usedCommand->InvokeInitialPass(lff.Arguments))
        {
        cmOStringStream error;
        error << "Error in cmake code at\n"
              << lff.FilePath << ":" << lff.Line << ":\n"
              << usedCommand->GetError() << std::endl
              << "Current CMake stack: " << this->GetListFileStack().c_str();
        cmSystemTools::Error(error.str().c_str());
        result = false;
        if ( this->GetCMakeInstance()->GetScriptMode() )
          {
          cmSystemTools::SetFatalErrorOccured();
          }
        }
      else
        {
        // use the command
        keepCommand = true;
        this->UsedCommands.push_back(usedCommand);
        }
      }
    else if ( this->GetCMakeInstance()->GetScriptMode() 
              && !usedCommand->IsScriptable() )
      {
      cmOStringStream error;
      error << "Error in cmake code at\n"
            << lff.FilePath << ":" << lff.Line << ":\n"
            << "Command " << usedCommand->GetName() 
            << " not scriptable" << std::endl;
      cmSystemTools::Error(error.str().c_str());
      result = false;
      cmSystemTools::SetFatalErrorOccured();
      }
    // if the Cloned command was not used 
    // then delete it
    if(!keepCommand)
      {
      delete usedCommand;
      }
    }
  else
    {
    if(!cmSystemTools::GetFatalErrorOccured())
      {
      cmOStringStream error;
      error << "Error in cmake code at\n"
            << lff.FilePath << ":" << lff.Line << ":\n"
            << "Unknown CMake command \"" << lff.Name.c_str() << "\".";
      cmSystemTools::Error(error.str().c_str());
      result = false;
      cmSystemTools::SetFatalErrorOccured();
      }
    }
  
  return result;
}

// Parse the given CMakeLists.txt file executing all commands
//
bool cmMakefile::ReadListFile(const char* filename_in, 
                              const char *external_in,
                              std::string* fullPath)
{
  std::string currentParentFile
    = this->GetSafeDefinition("CMAKE_PARENT_LIST_FILE");
  std::string currentFile
    = this->GetSafeDefinition("CMAKE_CURRENT_LIST_FILE");
  this->AddDefinition("CMAKE_PARENT_LIST_FILE", filename_in);

  // used to watch for blockers going out of scope
  // e.g. mismatched IF statement
  std::set<cmFunctionBlocker *> originalBlockers;

  const char* external = 0;
  std::string external_abs;

  const char* filename = filename_in;
  std::string filename_abs;

  if (external_in)
    {
    external_abs =
      cmSystemTools::CollapseFullPath(external_in,
                                      this->cmStartDirectory.c_str());
    external = external_abs.c_str();
    if (filename_in)
      {
      filename_abs =
        cmSystemTools::CollapseFullPath(filename_in,
                                        this->cmStartDirectory.c_str());
      filename = filename_abs.c_str();
      }
    }
  
  // keep track of the current file being read
  if (filename)
    {
    if(this->cmCurrentListFile != filename)
      {
      this->cmCurrentListFile = filename;
      }
    // loop over current function blockers and record them
    std::list<cmFunctionBlocker *>::iterator pos;
    for (pos = this->FunctionBlockers.begin(); 
         pos != this->FunctionBlockers.end(); ++pos)
      {
      originalBlockers.insert(*pos);
      }
    }
  
  // Now read the input file
  const char *filenametoread= filename;

  if( external)
    {
    filenametoread= external;
    }

  this->AddDefinition("CMAKE_CURRENT_LIST_FILE", filenametoread);

  // try to see if the list file is the top most
  // list file for a project, and if it is, then it
  // must have a project command.   If there is not
  // one, then cmake will provide one via the 
  // cmListFileCache class.
  bool requireProjectCommand = false;
  if(!external && this->cmStartDirectory == this->cmHomeDirectory)
    {
    if(cmSystemTools::LowerCase(
      cmSystemTools::GetFilenameName(filename)) == "cmakelists.txt")
      {
      requireProjectCommand = true;
      }
    }
      
  // push the listfile onto the stack
  this->ListFileStack.push_back(filenametoread);
  if(fullPath!=0)
    {
    *fullPath=filenametoread;
    }
  cmListFile cacheFile;
  if( !cacheFile.ParseFile(filenametoread, requireProjectCommand) )
    {
    // pop the listfile off the stack
    this->ListFileStack.pop_back();
    if(fullPath!=0)
      {
      fullPath->clear();
      }
    this->AddDefinition("CMAKE_PARENT_LIST_FILE", currentParentFile.c_str());
    this->AddDefinition("CMAKE_CURRENT_LIST_FILE", currentFile.c_str());
    return false;
    }
  // add this list file to the list of dependencies
  this->ListFiles.push_back( filenametoread);
  const size_t numberFunctions = cacheFile.Functions.size();
  for(size_t i =0; i < numberFunctions; ++i)
    {
    this->ExecuteCommand(cacheFile.Functions[i]);
    if ( cmSystemTools::GetFatalErrorOccured() )
      {
      // pop the listfile off the stack
      this->ListFileStack.pop_back();
      this->AddDefinition("CMAKE_PARENT_LIST_FILE",
                          currentParentFile.c_str());
      this->AddDefinition("CMAKE_CURRENT_LIST_FILE", currentFile.c_str());
      return true;
      }
    }

  // send scope ended to and function blockers
  if (filename)
    {
    // loop over all function blockers to see if any block this command
    std::list<cmFunctionBlocker *>::iterator pos;
    for (pos = this->FunctionBlockers.begin(); 
         pos != this->FunctionBlockers.end(); ++pos)
      {
      // if this blocker was not in the original then send a 
      // scope ended message
      if (originalBlockers.find(*pos) == originalBlockers.end())
        {
        (*pos)->ScopeEnded(*this);
        }
      }
    }
  
  this->AddDefinition("CMAKE_PARENT_LIST_FILE", currentParentFile.c_str());
  this->AddDefinition("CMAKE_CURRENT_LIST_FILE", currentFile.c_str());

  // pop the listfile off the stack
  this->ListFileStack.pop_back();

  return true;
}


void cmMakefile::AddCommand(cmCommand* wg)
{
  this->GetCMakeInstance()->AddCommand(wg);
}

// Set the make file 
void cmMakefile::SetLocalGenerator(cmLocalGenerator* lg)
{
  this->LocalGenerator = lg;
}

void cmMakefile::FinalPass()
{
  // do all the variable expansions here
  this->ExpandVariables();

  // give all the commands a chance to do something
  // after the file has been parsed before generation
  for(std::vector<cmCommand*>::iterator i = this->UsedCommands.begin();
      i != this->UsedCommands.end(); ++i)
    {
    (*i)->FinalPass();
    }

}

// Generate the output file
void cmMakefile::ConfigureFinalPass()
{
  this->FinalPass();
  const char* oldValue
    = this->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
  if (oldValue && atof(oldValue) <= 1.2)
    {
    cmSystemTools::Error("You have requested backwards compatibility "
                         "with CMake version 1.2 or earlier. This version "
                         "of CMake only supports backwards compatibility "
                         "with CMake 1.4 or later. For compatibility with "
                         "1.2 or earlier please use CMake 2.0");
    }
  for (cmTargets::iterator l = this->Targets.begin();
       l != this->Targets.end(); l++)
    {
    l->second.GenerateSourceFilesFromSourceLists(*this);
    l->second.AnalyzeLibDependencies(*this);
    }
}

//----------------------------------------------------------------------------
void
cmMakefile::AddCustomCommandToTarget(const char* target,
                                     const std::vector<std::string>& depends,
                                     const cmCustomCommandLines& commandLines,
                                     cmTarget::CustomCommandType type,
                                     const char* comment,
                                     const char* workingDir,
                                     bool escapeOldStyle)
{
  // Find the target to which to add the custom command.
  cmTargets::iterator ti = this->Targets.find(target);
  if(ti != this->Targets.end())
    {
    // Add the command to the appropriate build step for the target.
    std::vector<std::string> no_output;
    cmCustomCommand cc(no_output, depends, commandLines, comment, workingDir);
    cc.SetEscapeOldStyle(escapeOldStyle);
    switch(type)
      {
      case cmTarget::PRE_BUILD:
        ti->second.GetPreBuildCommands().push_back(cc);
        break;
      case cmTarget::PRE_LINK:
        ti->second.GetPreLinkCommands().push_back(cc);
        break;
      case cmTarget::POST_BUILD:
        ti->second.GetPostBuildCommands().push_back(cc);
        break;
      }
    }
}

//----------------------------------------------------------------------------
void
cmMakefile::AddCustomCommandToOutput(const std::vector<std::string>& outputs,
                                     const std::vector<std::string>& depends,
                                     const char* main_dependency,
                                     const cmCustomCommandLines& commandLines,
                                     const char* comment,
                                     const char* workingDir,
                                     bool replace,
                                     bool escapeOldStyle)
{
  // Make sure there is at least one output.
  if(outputs.empty())
    {
    cmSystemTools::Error("Attempt to add a custom rule with no output!");
    return;
    }

  // Choose a source file on which to store the custom command.
  cmSourceFile* file = 0;
  if(main_dependency && main_dependency[0])
    {
    // The main dependency was specified.  Use it unless a different
    // custom command already used it.
    file = this->GetSource(main_dependency);
    if(file && file->GetCustomCommand() && !replace)
      {
      // The main dependency already has a custom command.
      if(commandLines == file->GetCustomCommand()->GetCommandLines())
        {
        // The existing custom command is identical.  Silently ignore
        // the duplicate.
        return;
        }
      else
        {
        // The existing custom command is different.  We need to
        // generate a rule file for this new command.
        file = 0;
        }
      }
    else
      {
      // The main dependency does not have a custom command or we are
      // allowed to replace it.  Use it to store the command.
      file = this->GetOrCreateSource(main_dependency);
      }
    }

  // Generate a rule file if the main dependency is not available.
  if(!file)
    {
    // Construct a rule file associated with the first output produced.
    std::string outName = outputs[0];
    outName += ".rule";

    // Check if the rule file already exists.
    file = this->GetSource(outName.c_str());
    if(file && file->GetCustomCommand() && !replace)
      {
      // The rule file already exists.
      if(commandLines != file->GetCustomCommand()->GetCommandLines())
        {
        cmSystemTools::Error("Attempt to add a custom rule to output \"",
                             outName.c_str(),
                             "\" which already has a custom rule.");
        }
      return;
      }

    // Create a cmSourceFile for the rule file.
    file = this->GetOrCreateSource(outName.c_str(), true);
    }

  // Always create the output sources and mark them generated.
  for(std::vector<std::string>::const_iterator o = outputs.begin();
      o != outputs.end(); ++o)
    {
    if(cmSourceFile* out = this->GetOrCreateSource(o->c_str(), true))
      {
      out->SetProperty("GENERATED", "1");
      }
    }

  // Construct a complete list of dependencies.
  std::vector<std::string> depends2(depends);
  if(main_dependency && main_dependency[0])
    {
    depends2.push_back(main_dependency);
    }

  // Attach the custom command to the file.
  if(file)
    {
    cmCustomCommand* cc =
      new cmCustomCommand(outputs, depends2, commandLines,
                          comment, workingDir);
    cc->SetEscapeOldStyle(escapeOldStyle);
    file->SetCustomCommand(cc);
    }
}

//----------------------------------------------------------------------------
void
cmMakefile::AddCustomCommandToOutput(const char* output,
                                     const std::vector<std::string>& depends,
                                     const char* main_dependency,
                                     const cmCustomCommandLines& commandLines,
                                     const char* comment,
                                     const char* workingDir,
                                     bool replace,
                                     bool escapeOldStyle)
{
  std::vector<std::string> outputs;
  outputs.push_back(output);
  this->AddCustomCommandToOutput(outputs, depends, main_dependency,
                                 commandLines, comment, workingDir,
                                 replace, escapeOldStyle);
}

//----------------------------------------------------------------------------
void
cmMakefile::AddCustomCommandOldStyle(const char* target,
                                     const std::vector<std::string>& outputs,
                                     const std::vector<std::string>& depends,
                                     const char* source,
                                     const cmCustomCommandLines& commandLines,
                                     const char* comment)
{
  // Translate the old-style signature to one of the new-style
  // signatures.
  if(strcmp(source, target) == 0)
    {
    // In the old-style signature if the source and target were the
    // same then it added a post-build rule to the target.  Preserve
    // this behavior.
    this->AddCustomCommandToTarget(target, depends, commandLines,
                                   cmTarget::POST_BUILD, comment, 0);
    return;
    }

  // Each output must get its own copy of this rule.
  cmsys::RegularExpression sourceFiles("\\.(C|M|c|c\\+\\+|cc|cpp|cxx|m|mm|"
                                       "rc|def|r|odl|idl|hpj|bat|h|h\\+\\+|"
                                       "hm|hpp|hxx|in|txx|inl)$");
  for(std::vector<std::string>::const_iterator oi = outputs.begin();
      oi != outputs.end(); ++oi)
    {
    // Get the name of this output.
    const char* output = oi->c_str();

    // Choose whether to use a main dependency.
    if(sourceFiles.find(source))
      {
      // The source looks like a real file.  Use it as the main dependency.
      this->AddCustomCommandToOutput(output, depends, source,
                                     commandLines, comment, 0);
      }
    else
      {
      // The source may not be a real file.  Do not use a main dependency.
      const char* no_main_dependency = 0;
      std::vector<std::string> depends2 = depends;
      depends2.push_back(source);
      this->AddCustomCommandToOutput(output, depends2, no_main_dependency,
                                     commandLines, comment, 0);
      }

    // If the rule was added to the source (and not a .rule file),
    // then add the source to the target to make sure the rule is
    // included.
    std::string sname = output;
    sname += ".rule";
    if(!this->GetSource(sname.c_str()))
      {
      if (this->Targets.find(target) != this->Targets.end())
        {
        this->Targets[target].GetSourceLists().push_back(source);
        }
      else
        {
        cmSystemTools::Error("Attempt to add a custom rule to a target "
                             "that does not exist yet for target ", target);
        return;
        }
      }
    }
}

//----------------------------------------------------------------------------
void cmMakefile::AddUtilityCommand(const char* utilityName, 
                                   bool excludeFromAll,
                                   const std::vector<std::string>& depends,
                                   const char* workingDirectory,
                                   const char* command,
                                   const char* arg1,
                                   const char* arg2,
                                   const char* arg3,
                                   const char* arg4)
{
  // Construct the command line for the custom command.
  cmCustomCommandLine commandLine;
  commandLine.push_back(command);
  if(arg1)
    {
    commandLine.push_back(arg1);
    }
  if(arg2)
    {
    commandLine.push_back(arg2);
    }
  if(arg3)
    {
    commandLine.push_back(arg3);
    }
  if(arg4)
    {
    commandLine.push_back(arg4);
    }
  cmCustomCommandLines commandLines;
  commandLines.push_back(commandLine);

  // Call the real signature of this method.
  this->AddUtilityCommand(utilityName, excludeFromAll, workingDirectory, 
                          depends, commandLines);
}

//----------------------------------------------------------------------------
void cmMakefile::AddUtilityCommand(const char* utilityName, 
                                   bool excludeFromAll,
                                   const char* workingDirectory,
                                   const std::vector<std::string>& depends,
                                   const cmCustomCommandLines& commandLines,
                                   bool escapeOldStyle, const char* comment)
{
  // Create a target instance for this utility.
  cmTarget target;
  target.SetMakefile(this);
  target.SetType(cmTarget::UTILITY, utilityName);
  if (excludeFromAll)
    {
    target.SetProperty("EXCLUDE_FROM_ALL", "TRUE");
    }
  if(!comment)
    {
    // Use an empty comment to avoid generation of default comment.
    comment = "";
    }

  // Store the custom command in the target.
  std::string force = this->GetStartOutputDirectory();
  force += cmake::GetCMakeFilesDirectory();
  force += "/";
  force += utilityName;
  const char* no_main_dependency = 0;
  bool no_replace = false;
  this->AddCustomCommandToOutput(force.c_str(), depends,
                                 no_main_dependency,
                                 commandLines, comment,
                                 workingDirectory, no_replace,
                                 escapeOldStyle);
  target.GetSourceLists().push_back(force);

  // The output is not actually created so mark it symbolic.
  if(cmSourceFile* sf = this->GetSource(force.c_str()))
    {
    sf->SetProperty("SYMBOLIC", "1");
    }
  else
    {
    cmSystemTools::Error("Could not get source file entry for ",
                         force.c_str());
    }

  // Add the target to the set of targets.
  cmTargets::iterator it = 
    this->Targets.insert(cmTargets::value_type(utilityName,target)).first;
  this->LocalGenerator->GetGlobalGenerator()->AddTarget(*it);
}

void cmMakefile::AddDefineFlag(const char* flag)
{
  if (!flag)
    {
    return;
    }

  // remove any \n\r
  std::string ret = flag;
  std::string::size_type pos = 0;
  while((pos = ret.find('\n', pos)) != std::string::npos)
    {
    ret[pos] = ' ';
    pos++;
    }
  pos = 0;
  while((pos = ret.find('\r', pos)) != std::string::npos)
    {
    ret[pos] = ' ';
    pos++;
    }

  this->DefineFlags += " ";
  this->DefineFlags += ret;
}


void cmMakefile::RemoveDefineFlag(const char* flag)
{
  // Check the length of the flag to remove.
  std::string::size_type len = strlen(flag);
  if(len < 1)
    {
    return;
    }

  // Remove all instances of the flag that are surrounded by
  // whitespace or the beginning/end of the string.
  for(std::string::size_type lpos = this->DefineFlags.find(flag, 0);
      lpos != std::string::npos; lpos = this->DefineFlags.find(flag, lpos))
    {
    std::string::size_type rpos = lpos + len;
    if((lpos <= 0 || isspace(this->DefineFlags[lpos-1])) &&
       (rpos >= this->DefineFlags.size() || isspace(this->DefineFlags[rpos])))
      {
      this->DefineFlags.erase(lpos, len);
      }
    else
      {
      ++lpos;
      }
    }
}

void cmMakefile::AddLinkLibrary(const char* lib, 
                                cmTarget::LinkLibraryType llt)
{
  cmTarget::LibraryID tmp;
  tmp.first = lib;
  tmp.second = llt;
  this->LinkLibraries.push_back(tmp);
}

void cmMakefile::AddLinkLibraryForTarget(const char *target,
                                         const char* lib, 
                                         cmTarget::LinkLibraryType llt)
{ 
  cmTargets::iterator i = this->Targets.find(target);
  if ( i != this->Targets.end())
    {
    cmTarget* tgt = 
      this->GetCMakeInstance()->GetGlobalGenerator()->FindTarget(0, lib);
    if(tgt)
      {
      bool allowModules = true;
      const char* versionValue
        = this->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
      if (versionValue &&  (atof(versionValue) >= 2.4) )
        {
        allowModules = false;
        }
      // if it is not a static or shared library then you can not link to it
      if(!((tgt->GetType() == cmTarget::STATIC_LIBRARY) ||
           (tgt->GetType() == cmTarget::SHARED_LIBRARY) ||
           (tgt->GetType() == cmTarget::EXECUTABLE &&
            tgt->GetPropertyAsBool("ENABLE_EXPORTS"))))
        {
        cmOStringStream e;
        e << "Attempt to add link target " << lib << " of type: "
          << cmTarget::TargetTypeNames[static_cast<int>(tgt->GetType())]
          << "\nto target " << target
          << ". One can only link to STATIC or SHARED libraries, or "
          << "to executables with the ENABLE_EXPORTS property set.";
        // in older versions of cmake linking to modules was allowed
        if( tgt->GetType() == cmTarget::MODULE_LIBRARY )
          {
          e << 
            "\nTo allow linking of modules set "
            "CMAKE_BACKWARDS_COMPATIBILITY to 2.2 or lower\n";
          }
        // if no modules are allowed then this is always an error
        if(!allowModules || 
           // if we allow modules but the type is not a module then it is
           // still an error
           (allowModules && tgt->GetType() != cmTarget::MODULE_LIBRARY))
          {
          cmSystemTools::Error(e.str().c_str());
          }
        }
      }
    i->second.AddLinkLibrary( *this, target, lib, llt );
    }
  else
    {
    cmOStringStream e;
    e << "Attempt to add link library \""
      << lib << "\" to target \""
      << target << "\" which is not built by this project.";
    cmSystemTools::Error(e.str().c_str());
    }
}

void cmMakefile::AddLinkDirectoryForTarget(const char *target,
                                           const char* d)
{
  cmTargets::iterator i = this->Targets.find(target);
  if ( i != this->Targets.end())
    {
    i->second.AddLinkDirectory( d );
    }
  else
    {
    cmSystemTools::Error
      ("Attempt to add link directories to non-existant target: ", 
       target, " for directory ", d);
    }
}

void cmMakefile::AddLinkLibrary(const char* lib)
{
  this->AddLinkLibrary(lib,cmTarget::GENERAL);
}

void cmMakefile::AddLinkDirectory(const char* dir)
{
  // Don't add a link directory that is already present.  Yes, this
  // linear search results in n^2 behavior, but n won't be getting
  // much bigger than 20.  We cannot use a set because of order
  // dependency of the link search path.
  
  // remove trailing slashes
  if(dir && dir[strlen(dir)-1] == '/')
    {
    std::string newdir = dir;
    newdir = newdir.substr(0, newdir.size()-1);
    if(std::find(this->LinkDirectories.begin(),
                 this->LinkDirectories.end(), 
                 newdir.c_str()) == this->LinkDirectories.end())
      {
      this->LinkDirectories.push_back(newdir);
      }
    }
  else
    {
    if(std::find(this->LinkDirectories.begin(),
                 this->LinkDirectories.end(), dir) 
       == this->LinkDirectories.end())
      {
      this->LinkDirectories.push_back(dir);
      }
    }
}

void cmMakefile::InitializeFromParent()
{
  cmMakefile *parent = this->LocalGenerator->GetParent()->GetMakefile();
  
  // copy the definitions
  this->Definitions = parent->Definitions;

  // copy include paths
  this->IncludeDirectories = parent->IncludeDirectories;
  this->SystemIncludeDirectories = parent->SystemIncludeDirectories;
  
  // define flags
  this->DefineFlags = parent->DefineFlags;
  
  // link libraries
  this->LinkLibraries = parent->LinkLibraries;
  
  // link directories
  this->LinkDirectories = parent->LinkDirectories;
  
  // the initial project name
  this->ProjectName = parent->ProjectName;

  // Copy include regular expressions.
  this->IncludeFileRegularExpression = parent->IncludeFileRegularExpression;
  this->ComplainFileRegularExpression = parent->ComplainFileRegularExpression;
}

void cmMakefile::ConfigureSubDirectory(cmLocalGenerator *lg2)
{
  // copy our variables from the child makefile
  lg2->GetMakefile()->InitializeFromParent();
  lg2->GetMakefile()->MakeStartDirectoriesCurrent();
  
  // finally configure the subdir
  lg2->Configure();
}

void cmMakefile::AddSubDirectory(const char* sub, 
                                 bool excludeFromAll, bool preorder)
{
  // the source path must be made full if it isn't already
  std::string srcPath = sub;
  if (!cmSystemTools::FileIsFullPath(srcPath.c_str()))
    {
    srcPath = this->GetCurrentDirectory();
    srcPath += "/";
    srcPath += sub;
    }

  // binary path must be made full if it isn't already
  std::string binPath = sub;
  if (!cmSystemTools::FileIsFullPath(binPath.c_str()))
    {
    binPath = this->GetCurrentOutputDirectory();
    binPath += "/";
    binPath += sub;
    }
  
  
  this->AddSubDirectory(srcPath.c_str(), binPath.c_str(), 
                        excludeFromAll, preorder, false);
}

                        
void cmMakefile::AddSubDirectory(const char* srcPath, const char *binPath,
                                 bool excludeFromAll, bool preorder, 
                                 bool immediate)
{
  std::vector<cmLocalGenerator *>& children = 
    this->LocalGenerator->GetChildren();
  // has this directory already been added? If so error
  unsigned int i;
  for (i = 0; i < children.size(); ++i)
    {
    if (srcPath == children[i]->GetMakefile()->GetStartDirectory())
      {
      cmSystemTools::Error
        ("Attempt to add subdirectory multiple times for directory.\n", 
         srcPath);
      return;
      }
    }
  
  // create a new local generator and set its parent
  cmLocalGenerator *lg2 = 
    this->LocalGenerator->GetGlobalGenerator()->CreateLocalGenerator();
  lg2->SetParent(this->LocalGenerator);
  this->LocalGenerator->GetGlobalGenerator()->AddLocalGenerator(lg2);
  
  // set the subdirs start dirs
  lg2->GetMakefile()->SetStartDirectory(srcPath);
  lg2->GetMakefile()->SetStartOutputDirectory(binPath);
  if(excludeFromAll)
    {
    lg2->GetMakefile()->SetProperty("EXCLUDE_FROM_ALL", "TRUE");
    }
  lg2->GetMakefile()->SetPreOrder(preorder);
  
  if (immediate)
    {
    this->ConfigureSubDirectory(lg2);
    }
}

void cmMakefile::AddIncludeDirectory(const char* inc, bool before)
{
  // if there is a newline then break it into multiple arguments
  if (!inc)
    {
    return;
    }

  // Don't add an include directory that is already present.  Yes,
  // this linear search results in n^2 behavior, but n won't be
  // getting much bigger than 20.  We cannot use a set because of
  // order dependency of the include path.
  std::vector<std::string>::iterator i = 
    std::find(this->IncludeDirectories.begin(),
              this->IncludeDirectories.end(), inc);
  if(i == this->IncludeDirectories.end())
    {
    if (before)
      {
      // WARNING: this *is* expensive (linear time) since it's a vector
      this->IncludeDirectories.insert(this->IncludeDirectories.begin(), inc);
      }
    else
      {
      this->IncludeDirectories.push_back(inc);
      }
    }
  else
    {
    if(before)
      {
      // if this before and already in the path then remove it
      this->IncludeDirectories.erase(i);
      // WARNING: this *is* expensive (linear time) since it's a vector
      this->IncludeDirectories.insert(this->IncludeDirectories.begin(), inc);
      }
    }
}

//----------------------------------------------------------------------------
void cmMakefile::AddSystemIncludeDirectory(const char* dir)
{
  this->SystemIncludeDirectories.insert(dir);
}

//----------------------------------------------------------------------------
bool cmMakefile::IsSystemIncludeDirectory(const char* dir)
{
  return (this->SystemIncludeDirectories.find(dir) !=
          this->SystemIncludeDirectories.end());
}

void cmMakefile::AddDefinition(const char* name, const char* value)
{
  if (!value )
    {
    return;
    }
  this->TemporaryDefinitionKey = name;
  this->Definitions[this->TemporaryDefinitionKey] = value;

#ifdef CMAKE_BUILD_WITH_CMAKE
  cmVariableWatch* vv = this->GetVariableWatch();
  if ( vv )
    {
    vv->VariableAccessed(this->TemporaryDefinitionKey, 
                         cmVariableWatch::VARIABLE_MODIFIED_ACCESS,
                         value,
                         this);
    }
#endif
}


void cmMakefile::AddCacheDefinition(const char* name, const char* value, 
                                    const char* doc,
                                    cmCacheManager::CacheEntryType type)
{
  const char* val = value;
  cmCacheManager::CacheIterator it = 
    this->GetCacheManager()->GetCacheIterator(name);
  if(!it.IsAtEnd() && (it.GetType() == cmCacheManager::UNINITIALIZED) &&
     it.Initialized())
    {
    val = it.GetValue();
    if ( type == cmCacheManager::PATH || type == cmCacheManager::FILEPATH )
      {
      std::vector<std::string>::size_type cc;
      std::vector<std::string> files;
      std::string nvalue = "";
      cmSystemTools::ExpandListArgument(val, files);
      for ( cc = 0; cc < files.size(); cc ++ )
        {
        files[cc] = cmSystemTools::CollapseFullPath(files[cc].c_str());
        if ( cc > 0 )
          {
          nvalue += ";";
          }
        nvalue += files[cc];
        }

      this->GetCacheManager()->AddCacheEntry(name, nvalue.c_str(), doc, type);
      val = it.GetValue();
      }

    }
  this->GetCacheManager()->AddCacheEntry(name, val, doc, type);
  // if there was a definition then remove it
  this->Definitions.erase( DefinitionMap::key_type(name));
}


void cmMakefile::AddDefinition(const char* name, bool value)
{
  if(value)
    {
    this->Definitions.erase( DefinitionMap::key_type(name));
    this->Definitions.insert(DefinitionMap::value_type(name, "ON"));
    }
  else
    {
    this->Definitions.erase( DefinitionMap::key_type(name));
    this->Definitions.insert(DefinitionMap::value_type(name, "OFF"));
    }
#ifdef CMAKE_BUILD_WITH_CMAKE
  cmVariableWatch* vv = this->GetVariableWatch();
  if ( vv )
    {
    vv->VariableAccessed(name, cmVariableWatch::VARIABLE_MODIFIED_ACCESS,
      value?"ON":"OFF", this);
    }
#endif
}


void cmMakefile::AddCacheDefinition(const char* name, 
                                    bool value, 
                                    const char* doc)
{
  bool val = value;
  cmCacheManager::CacheIterator it = 
    this->GetCacheManager()->GetCacheIterator(name);
  if(!it.IsAtEnd() && (it.GetType() == cmCacheManager::UNINITIALIZED) &&
     it.Initialized())
    {
    val = it.GetValueAsBool();
    }
  this->GetCacheManager()->AddCacheEntry(name, val, doc);
  this->AddDefinition(name, val);
}

void cmMakefile::RemoveDefinition(const char* name)
{
  this->Definitions.erase(DefinitionMap::key_type(name));
#ifdef CMAKE_BUILD_WITH_CMAKE
  cmVariableWatch* vv = this->GetVariableWatch();
  if ( vv )
    {
    vv->VariableAccessed(name, cmVariableWatch::VARIABLE_REMOVED_ACCESS,
      0, this);
    }
#endif
}

void cmMakefile::SetProjectName(const char* p)
{
  this->ProjectName = p;
}


void cmMakefile::AddGlobalLinkInformation(const char* name, cmTarget& target)
{
  // for these targets do not add anything
  switch(target.GetType())
    {
    case cmTarget::UTILITY: 
    case cmTarget::GLOBAL_TARGET: 
    case cmTarget::INSTALL_FILES: 
    case cmTarget::INSTALL_PROGRAMS: 
      return;
    default:;
    }
  std::vector<std::string>::iterator j;
  for(j = this->LinkDirectories.begin();
      j != this->LinkDirectories.end(); ++j)
    {
    target.AddLinkDirectory(j->c_str());
    }
  target.MergeLinkLibraries( *this, name, this->LinkLibraries );
}


void cmMakefile::AddLibrary(const char* lname, int shared,
                            const std::vector<std::string> &srcs,
                            bool excludeFromAll)
{
  cmTarget target;
  switch (shared)
    {
    case 0:
      target.SetType(cmTarget::STATIC_LIBRARY, lname);
      break;
    case 1:
      target.SetType(cmTarget::SHARED_LIBRARY, lname);
      break;
    case 2:
      target.SetType(cmTarget::MODULE_LIBRARY, lname);
      break;
    default:
      target.SetType(cmTarget::STATIC_LIBRARY, lname);
    }
  target.SetMakefile(this);

  // Clear its dependencies. Otherwise, dependencies might persist
  // over changes in CMakeLists.txt, making the information stale and
  // hence useless.
  target.ClearDependencyInformation( *this, lname );
  if(excludeFromAll)
    {
    target.SetProperty("EXCLUDE_FROM_ALL", "TRUE");
    }
  target.GetSourceLists() = srcs;
  this->AddGlobalLinkInformation(lname, target);
  cmTargets::iterator it = 
    this->Targets.insert(cmTargets::value_type(lname,target)).first;
  this->LocalGenerator->GetGlobalGenerator()->AddTarget(*it);
}

cmTarget* cmMakefile::AddExecutable(const char *exeName, 
                                    const std::vector<std::string> &srcs,
                                    bool excludeFromAll)
{
  cmTarget target;
  target.SetType(cmTarget::EXECUTABLE, exeName);
  target.SetMakefile(this);
  if(excludeFromAll)
    {
    target.SetProperty("EXCLUDE_FROM_ALL", "TRUE");
    }
  target.GetSourceLists() = srcs;
  this->AddGlobalLinkInformation(exeName, target);
  cmTargets::iterator it = 
    this->Targets.insert(cmTargets::value_type(exeName,target)).first;
  this->LocalGenerator->GetGlobalGenerator()->AddTarget(*it);
  return &it->second;
}

cmSourceFile *cmMakefile::GetSourceFileWithOutput(const char *cname)
{
  std::string name = cname;
  std::string out;

  // look through all the source files that have custom commands
  // and see if the custom command has the passed source file as an output
  // keep in mind the possible .rule extension that may be tacked on
  for(std::vector<cmSourceFile*>::const_iterator i = 
        this->SourceFiles.begin(); i != this->SourceFiles.end(); ++i)
    {
    // does this source file have a custom command?
    if ((*i)->GetCustomCommand())
      {
      // is the output of the custom command match the source files name
      const std::vector<std::string>& outputs =
        (*i)->GetCustomCommand()->GetOutputs();
      for(std::vector<std::string>::const_iterator o = outputs.begin();
          o != outputs.end(); ++o)
        {
        out = *o;
        std::string::size_type pos = out.rfind(name);
        // If the output matches exactly
        if (pos != out.npos &&
            pos == out.size() - name.size() &&
            (pos ==0 || out[pos-1] == '/'))
          {
          return *i;
          }
        }
      }
    }
  
  // otherwise return NULL
  return 0;
}

#if defined(CMAKE_BUILD_WITH_CMAKE)
cmSourceGroup* cmMakefile::GetSourceGroup(const char* name)
{
  // First see if the group exists.  If so, replace its regular expression.
  for(std::vector<cmSourceGroup>::iterator sg = this->SourceGroups.begin();
      sg != this->SourceGroups.end(); ++sg)
    {
    std::string sgName = sg->GetName();
    if(sgName == name)
      {
      return &(*sg);
      } 
    else
      {
      cmSourceGroup *target = sg->lookupChild(name);

      if(target)
        {
        return target;
        }
      }
    }
  return 0;
}

void cmMakefile::AddSourceGroup(const char* name, 
                                const char* regex, 
                                const char *parent)
{
  // First see if the group exists.  If so, replace its regular expression.
  for(unsigned int i=0;i<this->SourceGroups.size();++i)
    {
    cmSourceGroup *sg = &this->SourceGroups[i];
                                
    std::string sgName = sg->GetName();
    if(!parent)
      {
      if(sgName == name)
        {
        if ( regex )
          {
          // We only want to set the regular expression.  If there are already
          // source files in the group, we don't want to remove them.
          sg->SetGroupRegex(regex);
          }
        return;
        }
      }
    else
      {
      if(sgName == parent)
        {
        cmSourceGroup *localtarget = sg->lookupChild(name);
        if(localtarget)
          {
          if ( regex )
            {
            // We only want to set the regular expression.  If there are
            // already source files in the group, we don't want to remove
            // them.
            localtarget->SetGroupRegex(regex);
            }
          } 
        else
          {
          sg->AddChild(cmSourceGroup(name, regex));
          }
        return;
        } 
      else 
        {
        cmSourceGroup *localtarget = sg->lookupChild(parent);

        if(localtarget)
          {
          cmSourceGroup *addtarget = localtarget->lookupChild(name);
                                                        
          if(addtarget)
            {
            if ( regex )
              {
              // We only want to set the regular expression.  If there are
              // already source files in the group, we don't want to
              // remove them.
              addtarget->SetGroupRegex(regex);
              }
            } 
          else
            {
            localtarget->AddChild(cmSourceGroup(name, regex));
            }
          return;
          } 
        }
      }
    }
                
  // The group doesn't exist.  Add it.
  this->SourceGroups.push_back(cmSourceGroup(name, regex));
}
#endif

void cmMakefile::AddExtraDirectory(const char* dir)
{
  this->AuxSourceDirectories.push_back(dir);
}


// expance CMAKE_BINARY_DIR and CMAKE_SOURCE_DIR in the
// include and library directories.

void cmMakefile::ExpandVariables()
{
  // Now expand variables in the include and link strings
  for(std::vector<std::string>::iterator d = this->IncludeDirectories.begin();
      d != this->IncludeDirectories.end(); ++d)
    {
    this->ExpandVariablesInString(*d, true, true);
    }
  for(std::vector<std::string>::iterator d = this->LinkDirectories.begin();
      d != this->LinkDirectories.end(); ++d)
    {
    this->ExpandVariablesInString(*d, true, true);
    }
  for(cmTarget::LinkLibraryVectorType::iterator l = 
        this->LinkLibraries.begin();
      l != this->LinkLibraries.end(); ++l)
    {
    this->ExpandVariablesInString(l->first, true, true);
    }
}

bool cmMakefile::IsOn(const char* name) const
{
  const char* value = this->GetDefinition(name);
  return cmSystemTools::IsOn(value);
}

bool cmMakefile::IsSet(const char* name) const
{
  const char* value = this->GetDefinition(name);
  if ( !value )
    {
    return false;
    }

  if ( ! *value )
    {
    return false;
    }

  if ( cmSystemTools::IsNOTFOUND(value) )
    {
    return false;
    }

  return true;
}

bool cmMakefile::CanIWriteThisFile(const char* fileName)
{
  if ( !this->IsOn("CMAKE_DISABLE_SOURCE_CHANGES") )
    {
    return true;
    }
  // If we are doing an in-source build, than the test will always fail
  if ( cmSystemTools::SameFile(this->GetHomeDirectory(), 
                               this->GetHomeOutputDirectory()) )
    {
    if ( this->IsOn("CMAKE_DISABLE_IN_SOURCE_BUILD") )
      {
      return false;
      }
    return true;
    }

  // Check if this is subdirectory of the source tree but not a
  // subdirectory of a build tree
  if ( cmSystemTools::IsSubDirectory(fileName,
      this->GetHomeDirectory()) &&
    !cmSystemTools::IsSubDirectory(fileName,
      this->GetHomeOutputDirectory()) )
    {
    return false;
    }
  return true;
}

const char* cmMakefile::GetRequiredDefinition(const char* name) const
{
  const char* ret = this->GetDefinition(name);
  if(!ret)
    {
    cmSystemTools::Error("Error required internal CMake variable not "
                         "set, cmake may be not be built correctly.\n",
                         "Missing variable is:\n",
                         name);
    return "";
    }
  return ret;
}

const char* cmMakefile::GetDefinition(const char* name) const
{
  const char* def = 0;
  DefinitionMap::const_iterator pos = this->Definitions.find(name);
  if(pos != this->Definitions.end())
    {
    def = (*pos).second.c_str();
    }
  else
    {
    def = this->GetCacheManager()->GetCacheValue(name);
    }
#ifdef CMAKE_BUILD_WITH_CMAKE
  cmVariableWatch* vv = this->GetVariableWatch();
  if ( vv )
    {
    if ( def )
      {
      vv->VariableAccessed(name, cmVariableWatch::VARIABLE_READ_ACCESS,
        def, this);
      }
    else 
      {
      // are unknown access allowed
      DefinitionMap::const_iterator pos2 = 
        this->Definitions.find("CMAKE_ALLOW_UNKNOWN_VARIABLE_READ_ACCESS");
      if (pos2 != this->Definitions.end() && 
          cmSystemTools::IsOn((*pos2).second.c_str())) 
        {
        vv->VariableAccessed(name,
          cmVariableWatch::ALLOWED_UNKNOWN_VARIABLE_READ_ACCESS, def, this);
        }
      else
        {
        vv->VariableAccessed(name,
          cmVariableWatch::UNKNOWN_VARIABLE_READ_ACCESS, def, this);
        }
      }
    }
#endif
  return def;
}

const char* cmMakefile::GetSafeDefinition(const char* def) const
{
  const char* ret = this->GetDefinition(def);
  if(!ret)
    {
    return "";
    }
  return ret;
}

std::vector<std::string> cmMakefile
::GetDefinitions(int cacheonly /* = 0 */) const
{
  std::map<cmStdString, int> definitions;
  if ( !cacheonly )
    {
    DefinitionMap::const_iterator it;
    for ( it = this->Definitions.begin(); 
          it != this->Definitions.end(); it ++ )
      {
      definitions[it->first] = 1;
      }
    }
  cmCacheManager::CacheIterator cit = 
    this->GetCacheManager()->GetCacheIterator();
  for ( cit.Begin(); !cit.IsAtEnd(); cit.Next() )
    {
    definitions[cit.GetName()] = 1;
    }
  
  std::vector<std::string> res;

  std::map<cmStdString, int>::iterator fit;
  for ( fit = definitions.begin(); fit != definitions.end(); fit ++ )
    {
    res.push_back(fit->first);
    }
  return res;
}


const char *cmMakefile::ExpandVariablesInString(std::string& source) const
{
  return this->ExpandVariablesInString(source, false, false);
}

const char *cmMakefile::ExpandVariablesInString(std::string& source,
                                                bool escapeQuotes,
                                                bool noEscapes,
                                                bool atOnly,
                                                const char* filename,
                                                long line,
                                                bool removeEmpty,
                                                bool replaceAt) const
{
  if ( source.empty() || source.find_first_of("$@\\") == source.npos)
    {
    return source.c_str();
    }
  // This method replaces ${VAR} and @VAR@ where VAR is looked up
  // with GetDefinition(), if not found in the map, nothing is expanded.
  // It also supports the $ENV{VAR} syntax where VAR is looked up in
  // the current environment variables.
  
  cmCommandArgumentParserHelper parser;
  parser.SetMakefile(this);
  parser.SetLineFile(line, filename);
  parser.SetEscapeQuotes(escapeQuotes);
  parser.SetNoEscapeMode(noEscapes);
  parser.SetReplaceAtSyntax(replaceAt);
  parser.SetRemoveEmpty(removeEmpty);
  parser.SetAtOnly(atOnly);
  int res = parser.ParseString(source.c_str(), 0);
  if ( res )
    {
    source = parser.GetResult();
    }
  else
    {
    cmOStringStream error;
    error << "Syntax error in cmake code at\n"
          << (filename?filename:"(no filename given)") 
          << ":" << line << ":\n"
          << parser.GetError() << ", when parsing string \"" 
          << source.c_str() << "\"";
    const char* versionValue
      = this->GetDefinition("CMAKE_BACKWARDS_COMPATIBILITY");
    int major = 0;
    int minor = 0;
    if ( versionValue )
      {
      sscanf(versionValue, "%d.%d", &major, &minor);
      }
    if ( major < 2 || major == 2 && minor < 1 )
      {
      cmSystemTools::Error(error.str().c_str());
      cmSystemTools::SetFatalErrorOccured();
      return source.c_str();
      }
    else
      {
      cmSystemTools::Message(error.str().c_str());
      }
    }
  return source.c_str();
}

void cmMakefile::RemoveVariablesInString(std::string& source,
                                         bool atOnly) const
{
  if(!atOnly)
    {
    cmsys::RegularExpression var("(\\${[A-Za-z_0-9]*})");
    while (var.find(source))
      {
      source.erase(var.start(),var.end() - var.start());
      }
    }
  
  if(!atOnly)
    {
    cmsys::RegularExpression varb("(\\$ENV{[A-Za-z_0-9]*})");
    while (varb.find(source))
      {
      source.erase(varb.start(),varb.end() - varb.start());
      }
    }
  cmsys::RegularExpression var2("(@[A-Za-z_0-9]*@)");
  while (var2.find(source))
    {
    source.erase(var2.start(),var2.end() - var2.start());
    }
}

/**
 * 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()
{
#if defined(_WIN32) || defined(__CYGWIN__)
  this->AddDefinition("WIN32", "1");
#else
  this->AddDefinition("UNIX", "1");
#endif
  // Cygwin is more like unix so enable the unix commands
#if defined(__CYGWIN__)
  this->AddDefinition("UNIX", "1");
  this->AddDefinition("CYGWIN", "1");
#endif
#if defined(__APPLE__)
  this->AddDefinition("APPLE", "1");
#endif
#if defined(__QNXNTO__)
  this->AddDefinition("QNXNTO", "1");
#endif
#if defined(__BEOS__)
  this->AddDefinition("BEOS", "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);

  this->AddDefinition("CMAKE_FILES_DIRECTORY", 
                      cmake::GetCMakeFilesDirectory());
}

#if defined(CMAKE_BUILD_WITH_CMAKE)
/**
 * Find a source group whose regular expression matches the filename
 * part of the given source name.  Search backward through the list of
 * source groups, and take the first matching group found.  This way
 * non-inherited SOURCE_GROUP commands will have precedence over
 * inherited ones.
 */
cmSourceGroup& 
cmMakefile::FindSourceGroup(const char* source,
                            std::vector<cmSourceGroup> &groups)
{
  // First search for a group that lists the file explicitly.
  for(std::vector<cmSourceGroup>::reverse_iterator sg = groups.rbegin();
      sg != groups.rend(); ++sg)
    {
    cmSourceGroup *result = sg->MatchChildrenFiles(source);
    if(result)
      {
      return *result;
      }
    }
  
  // Now search for a group whose regex matches the file.
  for(std::vector<cmSourceGroup>::reverse_iterator sg = groups.rbegin();
      sg != groups.rend(); ++sg)
    {
    cmSourceGroup *result = sg->MatchChildrenRegex(source);
    if(result)
      {
      return *result;
      }
    }

                
  // Shouldn't get here, but just in case, return the default group.
  return groups.front();
}
#endif

bool cmMakefile::IsFunctionBlocked(const cmListFileFunction& lff)
{
  // if there are no blockers get out of here
  if (this->FunctionBlockers.begin() == this->FunctionBlockers.end())
    {
    return false;
    }

  // loop over all function blockers to see if any block this command
  // evaluate in reverse, this is critical for balanced IF statements etc
  std::list<cmFunctionBlocker *>::reverse_iterator pos;
  for (pos = this->FunctionBlockers.rbegin(); 
       pos != this->FunctionBlockers.rend(); ++pos)
    {
    if((*pos)->IsFunctionBlocked(lff, *this))
      {
      return true;
      }
    }
  
  return false;
}

void cmMakefile::ExpandArguments(
  std::vector<cmListFileArgument> const& inArgs,
  std::vector<std::string>& outArgs)
{
  std::vector<cmListFileArgument>::const_iterator i;
  std::string value;
  outArgs.reserve(inArgs.size());
  for(i = inArgs.begin(); i != inArgs.end(); ++i)
    {
    // Expand the variables in the argument.
    value = i->Value;
    this->ExpandVariablesInString(value, false, false, false, 
                                  i->FilePath, i->Line,
                                  false, true);

    // If the argument is quoted, it should be one argument.
    // Otherwise, it may be a list of arguments.
    if(i->Quoted)
      {
      outArgs.push_back(value);
      }
    else
      {
      cmSystemTools::ExpandListArgument(value, outArgs);
      }
    }
}

void cmMakefile::RemoveFunctionBlocker(const cmListFileFunction& lff)
{
  // loop over all function blockers to see if any block this command
  std::list<cmFunctionBlocker *>::reverse_iterator pos;
  for (pos = this->FunctionBlockers.rbegin(); 
       pos != this->FunctionBlockers.rend(); ++pos)
    {
    if ((*pos)->ShouldRemove(lff, *this))
      {
      cmFunctionBlocker* b = *pos;
      this->FunctionBlockers.remove(b);
      delete b;
      break;
      }
    }
  
  return;
}

void cmMakefile::SetHomeDirectory(const char* dir) 
{
  this->cmHomeDirectory = dir;
  cmSystemTools::ConvertToUnixSlashes(this->cmHomeDirectory);
  this->AddDefinition("CMAKE_SOURCE_DIR", this->GetHomeDirectory());
  if ( !this->GetDefinition("CMAKE_CURRENT_SOURCE_DIR") )
    {
    this->AddDefinition("CMAKE_CURRENT_SOURCE_DIR", this->GetHomeDirectory());
    }
}

void cmMakefile::SetHomeOutputDirectory(const char* lib)
{
  this->HomeOutputDirectory = lib;
  cmSystemTools::ConvertToUnixSlashes(this->HomeOutputDirectory);
  this->AddDefinition("CMAKE_BINARY_DIR", this->GetHomeOutputDirectory());
  if ( !this->GetDefinition("CMAKE_CURRENT_BINARY_DIR") )
    {
    this->AddDefinition("CMAKE_CURRENT_BINARY_DIR", 
                        this->GetHomeOutputDirectory());
    }
}


/**
 * Register the given cmData instance with its own name.
 */
void cmMakefile::RegisterData(cmData* data)
{
  std::string name = data->GetName();
  DataMapType::const_iterator d = this->DataMap.find(name);
  if((d != this->DataMap.end()) && (d->second != 0) && (d->second != data))
    {
    delete d->second;
    }
  this->DataMap[name] = data;
}


/**
 * Register the given cmData instance with the given name.  This can be used
 * to register a NULL pointer.
 */
void cmMakefile::RegisterData(const char* name, cmData* data)
{
  DataMapType::const_iterator d = this->DataMap.find(name);
  if((d != this->DataMap.end()) && (d->second != 0) && (d->second != data))
    {
    delete d->second;
    }
  this->DataMap[name] = data;
}


/**
 * Lookup a cmData instance previously registered with the given name.  If
 * the instance cannot be found, return NULL.
 */
cmData* cmMakefile::LookupData(const char* name) const
{
  DataMapType::const_iterator d = this->DataMap.find(name);
  if(d != this->DataMap.end())
    {
    return d->second;
    }
  else
    {
    return 0;
    }
}

cmSourceFile* cmMakefile::GetSource(const char* sourceName) const
{
  // if the source is provided with a full path use it, otherwise
  // by default it is in the current source dir
  std::string path;
  if (cmSystemTools::FileIsFullPath(sourceName))
    {
    path = cmSystemTools::GetFilenamePath(sourceName);
    }
  else
    {
    path = this->GetCurrentDirectory();
    // even though it is not a full path, it may still be relative
    std::string subpath = cmSystemTools::GetFilenamePath(sourceName);
    if (!subpath.empty())
      {
      path += "/";
      path += cmSystemTools::GetFilenamePath(sourceName);
      }
    }
  path = cmSystemTools::CollapseFullPath(path.c_str());

  std::string sname = 
    cmSystemTools::GetFilenameWithoutLastExtension(sourceName);

  // compute the extension
  std::string ext
    = cmSystemTools::GetFilenameLastExtension(sourceName);
  if ( ext.length() && ext[0] == '.' )
    {
    ext = ext.substr(1);
    }

  for(std::vector<cmSourceFile*>::const_iterator i = 
        this->SourceFiles.begin();
      i != this->SourceFiles.end(); ++i)
    {
    if ((*i)->GetSourceNameWithoutLastExtension() == sname &&
        cmSystemTools::GetFilenamePath((*i)->GetFullPath()) == path &&
        (ext.size() == 0 || (ext == (*i)->GetSourceExtension())))
      {
      return *i;
      }
    }

  // geeze, if it wasn't found maybe it is listed under the output dir
  if (!cmSystemTools::GetFilenamePath(sourceName).empty())
    {
    return 0;
    }
    
  path = this->GetCurrentOutputDirectory();
  for(std::vector<cmSourceFile*>::const_iterator i = 
        this->SourceFiles.begin();
      i != this->SourceFiles.end(); ++i)
    {
    if ((*i)->GetSourceName() == sname &&
        cmSystemTools::GetFilenamePath((*i)->GetFullPath()) == path &&
        (ext.size() == 0 || (ext == (*i)->GetSourceExtension())))
      {
      return *i;
      }
    }  
  
  return 0;
}

cmSourceFile* cmMakefile::GetOrCreateSource(const char* sourceName, 
                                            bool generated)
{
  // make it a full path first
  std::string src = sourceName;
  bool relative = !cmSystemTools::FileIsFullPath(sourceName);
  std::string srcTreeFile = this->GetCurrentDirectory();
  srcTreeFile += "/";
  srcTreeFile += sourceName;

  if(relative)
    {
    src = srcTreeFile;
    }
  
  // check to see if it exists
  cmSourceFile* ret = this->GetSource(src.c_str());
  if (ret)
    {
    return ret;
    }

  // OK a source file object doesn't exist for the source
  // maybe we made a bad call on assuming it was in the src tree
  std::string buildTreeFile = this->GetCurrentOutputDirectory();
  buildTreeFile += "/";
  buildTreeFile += sourceName;

  if (relative)
    {
    src = buildTreeFile;
    ret = this->GetSource(src.c_str());
    if (ret)
      {
      return ret;
      }
    // if it has not been marked generated check to see if it exists in the
    // src tree
    if(!generated)
      {
      // see if the file is in the source tree, otherwise assume it 
      // is in the binary tree
      if (cmSystemTools::FileExists(srcTreeFile.c_str()) &&
          !cmSystemTools::FileIsDirectory(srcTreeFile.c_str()))
        {
        src = srcTreeFile;
        }
      else
        {
        if ( cmSystemTools::GetFilenameLastExtension
             (srcTreeFile.c_str()).size() == 0)
          {
          if (cmSystemTools::DoesFileExistWithExtensions(
            srcTreeFile.c_str(), this->GetSourceExtensions()))
            {
            src = srcTreeFile;
            }
          else if (cmSystemTools::DoesFileExistWithExtensions(
            srcTreeFile.c_str(), this->GetHeaderExtensions()))
            {
            src = srcTreeFile;
            }
          }
        }
      }
    }

  // a cmSourceFile instance does not exist yet so we must create one
  // go back to looking in the source directory for it

  // we must create one
  cmSourceFile file; 
  file.SetMakefile(this);
  std::string path = cmSystemTools::GetFilenamePath(src);
  if(generated)
    {
    std::string ext = cmSystemTools::GetFilenameLastExtension(src);
    std::string name_no_ext = cmSystemTools::GetFilenameName(src.c_str());
    name_no_ext = name_no_ext.substr(0, name_no_ext.length()-ext.length());
    if ( ext.length() && ext[0] == '.' )
      {
      ext = ext.substr(1);
      } 
    bool headerFile = 
      !(std::find( this->HeaderFileExtensions.begin(), 
                   this->HeaderFileExtensions.end(), ext ) ==
        this->HeaderFileExtensions.end());
    file.SetName(name_no_ext.c_str(), path.c_str(), ext.c_str(), headerFile);
    }
  else
    {
    std::string relPath = cmSystemTools::GetFilenamePath(sourceName);
    if (relative && relPath.size())
      {
      // we need to keep the relative part of the filename
      std::string fullPathLessRel = path;
      std::string::size_type pos = fullPathLessRel.rfind(relPath);
      if (pos == std::string::npos)
        {
        cmSystemTools::Error(
          "CMake failed to properly look up relative cmSourceFile: ", 
          sourceName);
        }
      fullPathLessRel.erase(pos-1);
      file.SetName(sourceName, fullPathLessRel.c_str(),
                   this->GetSourceExtensions(),
                   this->GetHeaderExtensions());
      }
    else
      {
      file.SetName(cmSystemTools::GetFilenameName(src.c_str()).c_str(), 
                   path.c_str(),
                   this->GetSourceExtensions(),
                   this->GetHeaderExtensions());
      }
    }
  // add the source file to the makefile
  this->AddSource(file);
  src = file.GetFullPath();
  ret = this->GetSource(src.c_str());
  if (!ret)
    {
    cmSystemTools::Error(
      "CMake failed to properly look up cmSourceFile: ", sourceName);
    }
  else
    {
    ret->SetMakefile(this);
    }
  return ret;
}

cmSourceFile* cmMakefile::AddSource(cmSourceFile const&sf)
{
  // check to see if it exists
  cmSourceFile* ret = this->GetSource(sf.GetFullPath().c_str());
  if(ret)
    {
    return ret;
    }
  ret = new cmSourceFile(sf);
  this->SourceFiles.push_back(ret);
  return ret;
}

  
void cmMakefile::EnableLanguage(std::vector<std::string> const &  lang)
{
  this->AddDefinition("CMAKE_CFG_INTDIR",
    this->LocalGenerator->GetGlobalGenerator()->GetCMakeCFGInitDirectory());
  this->LocalGenerator->GetGlobalGenerator()->EnableLanguage(lang, this);
}

void cmMakefile::ExpandSourceListArguments(
  std::vector<std::string> const& arguments, 
  std::vector<std::string>& newargs, unsigned int /* start */)
{
  // now expand the args
  unsigned int i;
  for(i = 0; i < arguments.size(); ++i)
    {
    // List expansion will have been done already.
    newargs.push_back(arguments[i]);
    }
}

int cmMakefile::TryCompile(const char *srcdir, const char *bindir, 
                           const char *projectName, const char *targetName,
                           const std::vector<std::string> *cmakeArgs,
                           std::string *output)
{
  // does the binary directory exist ? If not create it...
  if (!cmSystemTools::FileIsDirectory(bindir))
    {
    cmSystemTools::MakeDirectory(bindir);
    }
  
  // change to the tests directory and run cmake
  // use the cmake object instead of calling cmake
  std::string cwd = cmSystemTools::GetCurrentWorkingDirectory();
  cmSystemTools::ChangeDirectory(bindir);
  
  // make sure the same generator is used
  // use this program as the cmake to be run, it should not
  // be run that way but the cmake object requires a vailid path
  std::string cmakeCommand = this->GetDefinition("CMAKE_COMMAND");
  cmake cm;
  cm.SetIsInTryCompile(true);
  cmGlobalGenerator *gg = cm.CreateGlobalGenerator
    (this->LocalGenerator->GetGlobalGenerator()->GetName());
  if (!gg)
    {
    cmSystemTools::Error(
      "Internal CMake error, TryCompile bad GlobalGenerator");
    // return to the original directory
    cmSystemTools::ChangeDirectory(cwd.c_str());
    return 1;
    }
  cm.SetGlobalGenerator(gg);
  
  // do a configure
  cm.SetHomeDirectory(srcdir);
  cm.SetHomeOutputDirectory(bindir);
  cm.SetStartDirectory(srcdir);
  cm.SetStartOutputDirectory(bindir);
  cm.SetCMakeCommand(cmakeCommand.c_str());
  cm.LoadCache();
  // if cmake args were provided then pass them in
  if (cmakeArgs)
    {
    cm.SetCacheArgs(*cmakeArgs);
    }
  // to save time we pass the EnableLanguage info directly
  gg->EnableLanguagesFromGenerator
    (this->LocalGenerator->GetGlobalGenerator());
  
  if (cm.Configure() != 0)
    {
    cmSystemTools::Error(
      "Internal CMake error, TryCompile configure of cmake failed");
    // return to the original directory
    cmSystemTools::ChangeDirectory(cwd.c_str());
    return 1;
    }

  if (cm.Generate() != 0)
    {
    cmSystemTools::Error(
      "Internal CMake error, TryCompile generation of cmake failed");
    // return to the original directory
    cmSystemTools::ChangeDirectory(cwd.c_str());
    return 1;
    }

  // finally call the generator to actually build the resulting project
  int ret = 
    this->LocalGenerator->GetGlobalGenerator()->TryCompile(srcdir,bindir,
                                                           projectName, 
                                                           targetName,
                                                           output,
                                                           this);
  
  cmSystemTools::ChangeDirectory(cwd.c_str());
  return ret;
}

cmake *cmMakefile::GetCMakeInstance() const
{
  if ( this->LocalGenerator && this->LocalGenerator->GetGlobalGenerator() )
    {
    return this->LocalGenerator->GetGlobalGenerator()->GetCMakeInstance();
    }
  return 0;
}

#ifdef CMAKE_BUILD_WITH_CMAKE
cmVariableWatch *cmMakefile::GetVariableWatch() const
{
  if ( this->GetCMakeInstance() &&
       this->GetCMakeInstance()->GetVariableWatch() )
    {
    return this->GetCMakeInstance()->GetVariableWatch();
    }
  return 0;
}
#endif

void cmMakefile::AddMacro(const char* name, const char* signature)
{
  if ( !name || !signature )
    {
    return;
    }
  this->MacrosMap[name] = signature;
}

void cmMakefile::GetListOfMacros(std::string& macros)
{
  StringStringMap::iterator it;
  macros = "";
  int cc = 0;
  for ( it = this->MacrosMap.begin(); it != this->MacrosMap.end(); ++it )
    {
    if ( cc > 0 )
      {
      macros += ";";
      }
    macros += it->first;
    cc ++;
    }
}

cmCacheManager *cmMakefile::GetCacheManager() const
{
  return this->GetCMakeInstance()->GetCacheManager();
}

void cmMakefile::DisplayStatus(const char* message, float s)
{
  this->GetLocalGenerator()->GetGlobalGenerator()
    ->GetCMakeInstance()->UpdateProgress(message, s);
}

std::string cmMakefile::GetModulesFile(const char* filename)
{
  std::vector<std::string> modulePath;
  const char* def = this->GetDefinition("CMAKE_MODULE_PATH");
  if(def)
    {
    cmSystemTools::ExpandListArgument(def, modulePath);
    }

  // Also search in the standard modules location.
  def = this->GetDefinition("CMAKE_ROOT");
  if(def)
    {
    std::string rootModules = def;
    rootModules += "/Modules";
    modulePath.push_back(rootModules);
    }
  //std::string  Look through the possible module directories.
  for(std::vector<std::string>::iterator i = modulePath.begin();
      i != modulePath.end(); ++i)
    {
    std::string itempl = *i;
    cmSystemTools::ConvertToUnixSlashes(itempl);
    itempl += "/";
    itempl += filename;
    if(cmSystemTools::FileExists(itempl.c_str()))
      {
      return itempl;
      }
    }
  return "";
}

void cmMakefile::ConfigureString(const std::string& input,
                                 std::string& output, bool atOnly,
                                 bool escapeQuotes)
{
  // Split input to handle one line at a time.
  std::string::const_iterator lineStart = input.begin();  
  while(lineStart != input.end())
    {
    // Find the end of this line.
    std::string::const_iterator lineEnd = lineStart;
    while(lineEnd != input.end() && *lineEnd != '\n')
      {
      ++lineEnd;
      }

    // Copy the line.
    std::string line(lineStart, lineEnd);

    // Skip the newline character.
    bool haveNewline = (lineEnd != input.end());
    if(haveNewline)
      {
      ++lineEnd;
      }

    // Replace #cmakedefine instances.
    if(this->cmDefineRegex.find(line))
      {
      const char* def = 
        this->GetDefinition(this->cmDefineRegex.match(1).c_str());
      if(!cmSystemTools::IsOff(def))
        {
        cmSystemTools::ReplaceString(line, "#cmakedefine", "#define");
        output += line;
        }
      else
        {
        cmSystemTools::ReplaceString(line, "#cmakedefine", "#undef");
        output += "/* ";
        output += line;
        output += " */";
        }
      }
    else if(this->cmDefine01Regex.find(line))
      {
      const char* def = 
        this->GetDefinition(this->cmDefine01Regex.match(1).c_str());
      cmSystemTools::ReplaceString(line, "#cmakedefine01", "#define");
      output += line;
      if(!cmSystemTools::IsOff(def))
        {
        output += " 1";
        }
      else
        {
        output += " 0";
        }
      }
    else
      {
      output += line;
      }

    if(haveNewline)
      {
      output += "\n";
      }

    // Move to the next line.
    lineStart = lineEnd;
    }

  // Perform variable replacements.
  this->ExpandVariablesInString(output, escapeQuotes, true, 
                                atOnly, 0, -1, true);
}

int cmMakefile::ConfigureFile(const char* infile, const char* outfile, 
                              bool copyonly, bool atOnly, bool escapeQuotes)
{
  int res = 1;
  if ( !this->CanIWriteThisFile(outfile) )
    {
    cmSystemTools::Error("Attempt to write file: ", 
                         outfile, " into a source directory.");
    return 0;
    }
  if ( !cmSystemTools::FileExists(infile) )
    {
    cmSystemTools::Error("File ", infile, " does not exist.");
    return 0;
    }
  std::string soutfile = outfile;
  std::string sinfile = infile;
  this->AddCMakeDependFile(infile);
  cmSystemTools::ConvertToUnixSlashes(soutfile);
  mode_t perm = 0;
  cmSystemTools::GetPermissions(sinfile.c_str(), perm);
  std::string::size_type pos = soutfile.rfind('/');
  if(pos != std::string::npos)
    {
    std::string path = soutfile.substr(0, pos);
    cmSystemTools::MakeDirectory(path.c_str());
    }
  
  if(copyonly)
    {
    if ( !cmSystemTools::CopyFileIfDifferent(sinfile.c_str(),
                                             soutfile.c_str()))
      {
      return 0;
      }
    }
  else
    {
    std::string tempOutputFile = soutfile;
    tempOutputFile += ".tmp";
    std::ofstream fout(tempOutputFile.c_str());
    if(!fout)
      {
      cmSystemTools::Error(
        "Could not open file for write in copy operation ", 
        tempOutputFile.c_str());
      cmSystemTools::ReportLastSystemError("");
      return 0;
      }
    std::ifstream fin(sinfile.c_str());
    if(!fin)
      {
      cmSystemTools::Error("Could not open file for read in copy operation ",
                           sinfile.c_str());
      return 0;
      }

    // now copy input to output and expand variables in the
    // input file at the same time
    std::string inLine;
    std::string outLine;
    while( cmSystemTools::GetLineFromStream(fin, inLine) )
      {
      outLine = "";
      this->ConfigureString(inLine, outLine, atOnly, escapeQuotes);
      fout << outLine.c_str() << "\n";
      }
    // close the files before attempting to copy
    fin.close();
    fout.close();
    if ( !cmSystemTools::CopyFileIfDifferent(tempOutputFile.c_str(),
                                             soutfile.c_str()) )
      {
      res = 0;
      }
    else
      {
      cmSystemTools::SetPermissions(soutfile.c_str(), perm);
      }
    cmSystemTools::RemoveFile(tempOutputFile.c_str());
    }
  return res;
}

void cmMakefile::AddWrittenFile(const char* file)
{ this->GetCMakeInstance()->AddWrittenFile(file); }

bool cmMakefile::HasWrittenFile(const char* file)
{ return this->GetCMakeInstance()->HasWrittenFile(file); }

bool cmMakefile::CheckInfiniteLoops()
{
  std::vector<std::string>::iterator it;
  for ( it = this->ListFiles.begin();
        it != this->ListFiles.end();
        ++ it )
    {
    if ( this->HasWrittenFile(it->c_str()) )
      {
      cmOStringStream str;
      str << "File " << it->c_str() << 
        " is written by WRITE_FILE (or FILE WRITE) command and should "
        "not be used as input to CMake. Please use CONFIGURE_FILE to "
        "be safe. Refer to the note next to FILE WRITE command.";
      cmSystemTools::Error(str.str().c_str());
      return false;
      }
    }
  return true;
}

void cmMakefile::SetProperty(const char* prop, const char* value)
{
  if (!prop)
    {
    return;
    }
  this->Properties.SetProperty(prop,value,cmProperty::DIRECTORY);
}

const char *cmMakefile::GetPropertyOrDefinition(const char* prop)
{
  const char *ret = this->GetProperty(prop, cmProperty::DIRECTORY);
  if (!ret)
    {
    ret = this->GetDefinition(prop);
    }
  return ret;
}

const char *cmMakefile::GetProperty(const char* prop)
{
  return this->GetProperty(prop, cmProperty::DIRECTORY);
}

const char *cmMakefile::GetProperty(const char* prop,
                                    cmProperty::ScopeType scope)
{
  // watch for specific properties
  if (!strcmp("PARENT_DIRECTORY",prop))
    {
    return this->LocalGenerator->GetParent()
      ->GetMakefile()->GetStartDirectory();
    }
  // watch for specific properties
  if (!strcmp("LISTFILE_STACK",prop))
    {
    std::string tmp;
    for (std::deque<cmStdString>::iterator i = this->ListFileStack.begin();
         i != this->ListFileStack.end(); ++i)
      {
      if (i != this->ListFileStack.begin())
        {
        tmp += ";";
        }
      tmp += *i;
      }
    this->SetProperty("LISTFILE_STACK",tmp.c_str());
    }
  
  bool chain = false;
  const char *retVal = 
    this->Properties.GetPropertyValue(prop, scope, chain);
  if (chain)
    {
    if(this->LocalGenerator->GetParent())
      {
      return this->LocalGenerator->GetParent()->GetMakefile()->
        GetProperty(prop, scope);
      }
    return this->GetCMakeInstance()->GetProperty(prop,scope);
    }

  return retVal;    
}

bool cmMakefile::GetPropertyAsBool(const char* prop)
{
  return cmSystemTools::IsOn(this->GetProperty(prop));
}


cmTarget* cmMakefile::FindTarget(const char* name)
{
  cmTargets& tgts = this->GetTargets();
  
  cmTargets::iterator i = tgts.find(name);
  if (i == tgts.end())
    {
    return 0;
    }
  return &i->second;
}

cmTest* cmMakefile::CreateTest(const char* testName)
{
  if ( !testName )
    {
    return 0;
    }
  cmTest* test = this->GetTest(testName);
  if ( test )
    {
    return test;
    }
  test = new cmTest;
  test->SetName(testName);
  test->SetMakefile(this);
  this->Tests.push_back(test);
  return test;
}

cmTest* cmMakefile::GetTest(const char* testName) const
{
  if ( !testName )
    {
    return 0;
    }
  std::vector<cmTest*>::const_iterator it;
  for ( it = this->Tests.begin(); it != this->Tests.end(); ++ it )
    {
    if ( strcmp((*it)->GetName(), testName) == 0 )
      {
      return *it;
      }
    }
  return 0;
}

const std::vector<cmTest*> *cmMakefile::GetTests() const
{
  return &this->Tests;
}

std::vector<cmTest*> *cmMakefile::GetTests()
{
  return &this->Tests;
}

std::string cmMakefile::GetListFileStack()
{
  cmOStringStream tmp;
  size_t depth = this->ListFileStack.size();
  std::deque<cmStdString>::iterator it = this->ListFileStack.end();
  do
    {
    --it;
    tmp << "\n[";
    tmp << depth;
    tmp << "]\t";
    tmp << *it;
    depth--;
    }
  while (it != this->ListFileStack.begin());
  return tmp.str();
}

// define properties
void cmMakefile::DefineProperties(cmake *cm)
{
  cm->DefineProperty
    ("ADDITIONAL_MAKE_CLEAN_FILES", cmProperty::DIRECTORY, 
     "Addditional files to clean during the make clean stage.",
     "A list of files that will be cleaned as a part of the "
     "\"make clean\" stage. ");

  cm->DefineProperty
    ("CLEAN_NO_CUSTOM", cmProperty::DIRECTORY, 
     "Should the output of custom commands be left.",
     "If this is true then the outputs of custom commands for this "
     "directory will not be removed during the \"make clean\" stage. ");

  cm->DefineProperty
    ("CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS", cmProperty::DIRECTORY, 
     "Allow loops to have non-matching closing statements.",
     "If this is set then the closing statement of control "
     "structures in CMake will not require an exact match to the "
     "opening statement. For example  IF(foo) will not require "
     "ENDIF(foo) but simple ENDIF() will work.",
     true);

  cm->DefineProperty
    ("LISTFILE_STACK", cmProperty::DIRECTORY, 
     "The current stack of listfiles being processed.",
     "This property is mainly useful when trying to debug errors "
     "in your CMake scripts. It returns a list of what list files "
     "are currently being processed, in order. So if one listfile "
     "does an INCLUDE command then that is effectively pushing "
     "the included listfile onto the stack.");

  cm->DefineProperty
    ("TEST_INCLUDE_FILE", cmProperty::DIRECTORY, 
     "A cmake file that will be included when ctest is run.",
     "If you specify TEST_INCLUDE_FILE, that file will be "
     "included and processed when ctest is run on the directory.");

  cm->DefineProperty
    ("EXCLUDE_FROM_ALL", cmProperty::DIRECTORY, 
     "Exclude the target from the all target.",
     "A property on a target that indicates if the target is excluded "
     "from the default build target. If it is not, then with a Makefile "
     "for example typing make will couse this target to be built as well. "
     "The same concept applies to the default build of other generators.",
     true);
}