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/*=========================================================================
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 "cmTryRunCommand.h"
#include "cmCacheManager.h"
#include "cmTryCompileCommand.h"
// cmTryRunCommand
bool cmTryRunCommand::InitialPass(std::vector<std::string> const& argv)
{
if(argv.size() < 4)
{
return false;
}
if (this->Makefile->IsOn("CMAKE_CROSSCOMPILING"))
{
this->SetError("doesn't work when crosscompiling.");
cmSystemTools::SetFatalErrorOccured();
return false;
}
// build an arg list for TryCompile and extract the runArgs
std::vector<std::string> tryCompile;
std::string outputVariable;
std::string runArgs;
unsigned int i;
for (i = 1; i < argv.size(); ++i)
{
if (argv[i] == "ARGS")
{
++i;
while (i < argv.size() && argv[i] != "COMPILE_DEFINITIONS" &&
argv[i] != "CMAKE_FLAGS")
{
runArgs += " ";
runArgs += argv[i];
++i;
}
if (i < argv.size())
{
tryCompile.push_back(argv[i]);
}
}
else
{
tryCompile.push_back(argv[i]);
if (argv[i] == "OUTPUT_VARIABLE")
{
if ( argv.size() <= (i+1) )
{
cmSystemTools::Error(
"OUTPUT_VARIABLE specified but there is no variable");
return false;
}
outputVariable = argv[i+1];
}
}
}
// do the try compile
int res = this->TryCompileCode(tryCompile);
// now try running the command if it compiled
if (!res)
{
if (this->OutputFile.size() == 0)
{
cmSystemTools::Error(this->FindErrorMessage.c_str());
}
else
{
int retVal = -1;
std::string output;
std::string finalCommand = cmSystemTools::ConvertToRunCommandPath(
this->OutputFile.c_str());
if(runArgs.size())
{
finalCommand += runArgs;
}
int timeout = 0;
bool worked = cmSystemTools::RunSingleCommand(finalCommand.c_str(),
&output, &retVal,
0, false, timeout);
if(outputVariable.size())
{
// if the TryCompileCore saved output in this outputVariable then
// prepend that output to this output
const char* compileOutput
= this->Makefile->GetDefinition(outputVariable.c_str());
if(compileOutput)
{
output = std::string(compileOutput) + output;
}
this->Makefile->AddDefinition(outputVariable.c_str(), output.c_str());
}
// set the run var
char retChar[1000];
if(worked)
{
sprintf(retChar,"%i",retVal);
}
else
{
strcpy(retChar, "FAILED_TO_RUN");
}
this->Makefile->AddCacheDefinition(argv[0].c_str(), retChar,
"Result of TRY_RUN",
cmCacheManager::INTERNAL);
}
}
// if we created a directory etc, then cleanup after ourselves
if(!this->Makefile->GetCMakeInstance()->GetDebugTryCompile())
{
this->CleanupFiles(this->BinaryDirectory.c_str());
}
return true;
}
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