/*============================================================================
  CMake - Cross Platform Makefile Generator
  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium

  Distributed under the OSI-approved BSD License (the "License");
  see accompanying file Copyright.txt for details.

  This software is distributed WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the License for more information.
============================================================================*/
#include "cmGlobalMinGWMakefileGenerator.h"
#include "cmLocalUnixMakefileGenerator3.h"
#include "cmMakefile.h"

cmGlobalMinGWMakefileGenerator::cmGlobalMinGWMakefileGenerator()
{
  this->FindMakeProgramFile = "CMakeMinGWFindMake.cmake";
  this->ForceUnixPaths = true;
  this->ToolSupportsColor = true;
  this->UseLinkScript = true;
}

void cmGlobalMinGWMakefileGenerator
::EnableLanguage(std::vector<std::string>const& l, 
                 cmMakefile *mf, 
                 bool optional)
{ 
  this->FindMakeProgram(mf);
  std::string makeProgram = mf->GetRequiredDefinition("CMAKE_MAKE_PROGRAM");
  std::vector<std::string> locations;
  locations.push_back(cmSystemTools::GetProgramPath(makeProgram.c_str()));
  locations.push_back("/mingw/bin");
  locations.push_back("c:/mingw/bin");
  std::string tgcc = cmSystemTools::FindProgram("gcc", locations);
  std::string gcc = "gcc.exe";
  if(tgcc.size())
    {
    gcc = tgcc;
    }
  std::string tgxx = cmSystemTools::FindProgram("g++", locations);
  std::string gxx = "g++.exe";
  if(tgxx.size())
    {
    gxx = tgxx;
    }
  mf->AddDefinition("CMAKE_GENERATOR_CC", gcc.c_str());
  mf->AddDefinition("CMAKE_GENERATOR_CXX", gxx.c_str());
  this->cmGlobalUnixMakefileGenerator3::EnableLanguage(l, mf, optional);
}

///! Create a local generator appropriate to this Global Generator
cmLocalGenerator *cmGlobalMinGWMakefileGenerator::CreateLocalGenerator()
{
  cmLocalUnixMakefileGenerator3* lg = new cmLocalUnixMakefileGenerator3;
  lg->SetWindowsShell(true);
  lg->SetGlobalGenerator(this);
  lg->SetIgnoreLibPrefix(true);
  lg->SetPassMakeflags(false);
  lg->SetUnixCD(true);
  lg->SetMinGWMake(true);

  // mingw32-make has trouble running code like
  //
  //  @echo message with spaces
  //
  // If quotes are added
  //
  //  @echo "message with spaces"
  //
  // it runs but the quotes are displayed.  Instead just use cmake to
  // echo.
  lg->SetNativeEchoCommand("@$(CMAKE_COMMAND) -E echo ", false);
  return lg;
}

//----------------------------------------------------------------------------
void cmGlobalMinGWMakefileGenerator
::GetDocumentation(cmDocumentationEntry& entry) const
{
  entry.Name = this->GetName();
  entry.Brief = "Generates a make file for use with mingw32-make.";
  entry.Full = "The makefiles generated use cmd.exe as the shell.  "
    "They do not require msys or a unix shell.";
}