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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Insight Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm 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 "cmVariableRequiresCommand.h"
#include "cmCacheManager.h"
// cmLibraryCommand
bool cmVariableRequiresCommand::InitialPass(std::vector<std::string> const& args)
{
if(args.size() < 3 )
{
this->SetError("called with incorrect number of arguments");
return false;
}
cmSystemTools::ExpandListArguments(args, m_Arguments);
return true;
}
void cmVariableRequiresCommand::FinalPass()
{
std::string testVarible = m_Arguments[0];
if(!m_Makefile->IsOn(testVarible.c_str()))
{
return;
}
std::string resultVarible = m_Arguments[1];
bool requirementsMet = true;
std::string notSet;
bool hasAdvanced = false;
for(unsigned int i = 2; i < m_Arguments.size(); ++i)
{
if(!m_Makefile->IsOn(m_Arguments[i].c_str()))
{
requirementsMet = false;
notSet += m_Arguments[i];
notSet += "\n";
if(cmCacheManager::GetInstance()->IsAdvanced(m_Arguments[i].c_str()))
{
hasAdvanced = true;
}
}
}
const char* reqVar = m_Makefile->GetDefinition(resultVarible.c_str());
// if reqVar is unset, then set it to requirementsMet
// if reqVar is set to true, but requirementsMet is false , then
// set reqVar to false.
if(!reqVar || (!requirementsMet && m_Makefile->IsOn(reqVar)))
{
m_Makefile->AddDefinition(resultVarible.c_str(), requirementsMet);
}
if(!requirementsMet)
{
std::string message = "Variable assertion failed:\n";
message += testVarible + " Requires that the following unset varibles are set:\n";
message += notSet;
message += "\nPlease set them, or set ";
message += testVarible + " to false, and re-configure.\n";
if(hasAdvanced)
{
message += "One or more of the required variables is advanced. To set the variable, you must turn on advanced mode in cmake.";
}
cmSystemTools::Error(message.c_str());
}
}
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