117 lines
3.3 KiB
C++
117 lines
3.3 KiB
C++
/*=========================================================================
|
|
|
|
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 "cmCMakeMinimumRequired.h"
|
|
|
|
#include "cmVersion.h"
|
|
|
|
// cmCMakeMinimumRequired
|
|
bool cmCMakeMinimumRequired
|
|
::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
|
|
{
|
|
// Process arguments.
|
|
std::string version_string;
|
|
bool doing_version = false;
|
|
for(unsigned int i=0; i < args.size(); ++i)
|
|
{
|
|
if(args[i] == "VERSION")
|
|
{
|
|
doing_version = true;
|
|
}
|
|
else if(args[i] == "FATAL_ERROR")
|
|
{
|
|
if(doing_version)
|
|
{
|
|
this->SetError("called with no value for VERSION.");
|
|
return false;
|
|
}
|
|
doing_version = false;
|
|
}
|
|
else if(doing_version)
|
|
{
|
|
doing_version = false;
|
|
version_string = args[i];
|
|
}
|
|
else
|
|
{
|
|
cmOStringStream e;
|
|
e << "called with unknown argument \"" << args[i].c_str() << "\".";
|
|
this->SetError(e.str().c_str());
|
|
return false;
|
|
}
|
|
}
|
|
if(doing_version)
|
|
{
|
|
this->SetError("called with no value for VERSION.");
|
|
return false;
|
|
}
|
|
|
|
// Make sure there was a version to check.
|
|
if(version_string.empty())
|
|
{
|
|
return true;
|
|
}
|
|
|
|
// Save the required version string.
|
|
this->Makefile->AddDefinition("CMAKE_MINIMUM_REQUIRED_VERSION",
|
|
version_string.c_str());
|
|
|
|
|
|
// Get the current version number.
|
|
int current_major = cmVersion::GetMajorVersion();
|
|
int current_minor = cmVersion::GetMinorVersion();
|
|
int current_patch = cmVersion::GetPatchVersion();
|
|
|
|
// Parse the required version number. If no patch-level is given
|
|
// use zero.
|
|
int required_major = 0;
|
|
int required_minor = 0;
|
|
int required_patch = 0;
|
|
if(sscanf(version_string.c_str(), "%d.%d.%d",
|
|
&required_major, &required_minor, &required_patch) < 2)
|
|
{
|
|
cmOStringStream e;
|
|
e << "could not parse VERSION \"" << version_string.c_str() << "\".";
|
|
this->SetError(e.str().c_str());
|
|
return false;
|
|
}
|
|
|
|
// Compare the version numbers.
|
|
if(current_major < required_major ||
|
|
current_major == required_major &&
|
|
current_minor < required_minor ||
|
|
current_major == required_major &&
|
|
current_minor == required_minor &&
|
|
current_patch < required_patch)
|
|
{
|
|
// The current version is too low.
|
|
cmOStringStream e;
|
|
e << "This project requires version " << version_string.c_str()
|
|
<< " of CMake. "
|
|
<< "You are running version "
|
|
<< current_major << "." << current_minor << "." << current_patch
|
|
<< ".\n";
|
|
cmSystemTools::Error(e.str().c_str());
|
|
cmSystemTools::SetFatalErrorOccured();
|
|
}
|
|
|
|
// set the policy version as well
|
|
this->Makefile->SetPolicyVersion(version_string.c_str());
|
|
|
|
return true;
|
|
}
|
|
|