CMake/Source/cmFindIncludeCommand.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile$
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

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=========================================================================*/
#ifndef cmFindIncludeCommand_h
#define cmFindIncludeCommand_h

#include "cmStandardIncludes.h"
#include "cmCommand.h"

/** \class cmFindIncludeCommand
 * \brief Define a command that searches for an include file.
 *
 * cmFindIncludeCommand is used to define a CMake variable include
 * path location by specifying a file and list of directories.
 */
class cmFindIncludeCommand : public cmCommand
{
public:
  /**
   * This is a virtual constructor for the command.
   */
  virtual cmCommand* Clone() 
    {
    return new cmFindIncludeCommand;
    }

  /**
   * This is called when the command is first encountered in
   * the CMakeLists.txt file.
   */
  virtual bool Invoke(std::vector<std::string>& args);
  
  /**
   * This determines if the command gets propagated down
   * to makefiles located in subdirectories.
   */
  virtual bool IsInherited() 
    {return true;}

  /**
   * The name of the command as specified in CMakeList.txt.
   */
  virtual const char* GetName() { return "FIND_INCLUDE";}

  /**
   * Succinct documentation.
   */
  virtual const char* GetTerseDocumentation() 
    {
    return "Find an include path for a given header file.";
    }
  
  /**
   * More documentation.
   */
  virtual const char* GetFullDocumentation()
    {
    return
      "FIND_INCLUDE(DEFINE_PATH DEFINE_INCLUDE includeName extraPath1 extraPath2 ...)\n"
      "If the include file is found, then DEFINE_PATH is set to the path\n"
      "where it was found and DEFINE_NAME is set to includeName";
    }
  
  cmTypeMacro(cmFindIncludeCommand, cmCommand);
};



#endif