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/*============================================================================
  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.
============================================================================*/
#ifndef cmFindLibraryCommand_h
#define cmFindLibraryCommand_h

#include "cmFindBase.h"

/** \class cmFindLibraryCommand
 * \brief Define a command to search for a library.
 *
 * cmFindLibraryCommand is used to define a CMake variable
 * that specifies a library. The command searches for a given
 * file in a list of directories.
 */
class cmFindLibraryCommand : public cmFindBase
{
public:
  cmFindLibraryCommand();
  /**
   * This is a virtual constructor for the command.
   */
  virtual cmCommand* Clone() { return new cmFindLibraryCommand; }

  /**
   * This is called when the command is first encountered in
   * the CMakeLists.txt file.
   */
  virtual bool InitialPass(std::vector<std::string> const& args,
                           cmExecutionStatus& status);

  /**
   * This determines if the command is invoked when in script mode.
   */
  virtual bool IsScriptable() const { return true; }

  /**
   * The name of the command as specified in CMakeList.txt.
   */
  virtual std::string GetName() const { return "find_library"; }

  cmTypeMacro(cmFindLibraryCommand, cmFindBase);

protected:
  void AddArchitecturePaths(const char* suffix);
  void AddArchitecturePath(std::string const& dir,
                           std::string::size_type start_pos,
                           const char* suffix, bool fresh = true);
  std::string FindLibrary();

private:
  std::string FindNormalLibrary();
  std::string FindNormalLibraryNamesPerDir();
  std::string FindNormalLibraryDirsPerName();
  std::string FindFrameworkLibrary();
  std::string FindFrameworkLibraryNamesPerDir();
  std::string FindFrameworkLibraryDirsPerName();
};

#endif