CMake/Source/cmCMakeMinimumRequired.h
Brad King 378acb1d4d Teach cmake_minimum_required about tweak version
The command now accepts four version components in the format

  major[.minor[.patch[.tweak]]]

This corresponds to the new versioning scheme introduced recently.
2010-04-23 09:50:02 -04:00

91 lines
2.8 KiB
C++

/*============================================================================
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 cmCMakeMinimumRequired_h
#define cmCMakeMinimumRequired_h
#include "cmCommand.h"
/** \class cmCMakeMinimumRequired
* \brief Build a CMAKE variable
*
* cmCMakeMinimumRequired sets a variable to a value with expansion.
*/
class cmCMakeMinimumRequired : public cmCommand
{
public:
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmCMakeMinimumRequired;
}
/**
* 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() { return true; }
/**
* The name of the command as specified in CMakeList.txt.
*/
virtual const char* GetName() {return "cmake_minimum_required";}
/**
* Succinct documentation.
*/
virtual const char* GetTerseDocumentation()
{
return "Set the minimum required version of cmake for a project.";
}
/**
* More documentation.
*/
virtual const char* GetFullDocumentation()
{
return
" cmake_minimum_required(VERSION major[.minor[.patch[.tweak]]]\n"
" [FATAL_ERROR])\n"
"If the current version of CMake is lower than that required "
"it will stop processing the project and report an error. "
"When a version higher than 2.4 is specified the command implicitly "
"invokes\n"
" cmake_policy(VERSION major[.minor[.patch[.tweak]]])\n"
"which sets the cmake policy version level to the version specified. "
"When version 2.4 or lower is given the command implicitly invokes\n"
" cmake_policy(VERSION 2.4)\n"
"which enables compatibility features for CMake 2.4 and lower.\n"
"The FATAL_ERROR option is accepted but ignored by CMake 2.6 "
"and higher. "
"It should be specified so CMake versions 2.4 and lower fail with an "
"error instead of just a warning.";
}
cmTypeMacro(cmCMakeMinimumRequired, cmCommand);
private:
std::vector<std::string> UnknownArguments;
bool EnforceUnknownArguments();
};
#endif