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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 "cmTryCompileCommand.h"
#include "cmCacheManager.h"
// cmExecutableCommand
bool cmTryCompileCommand::InitialPass(std::vector<std::string> const& argv)
{
if(argv.size() < 3)
{
return false;
}
// which signature were we called with ?
bool srcFileSignature = true;
// look for CMAKE_FLAGS and store them
std::vector<std::string> cmakeFlags;
int i;
for (i = 3; i < argv.size(); ++i)
{
if (argv[i] == "CMAKE_FLAGS")
{
for (; i < argv.size(); ++i)
{
cmakeFlags.push_back(argv[i]);
}
}
else
{
srcFileSignature = false;
}
}
// where will the binaries be stored
const char* binaryDirectory = argv[1].c_str();
const char* sourceDirectory = argv[2].c_str();
const char* projectName = 0;
const char* targetName = 0;
std::string tmpString;
// compute the binary dir when TRY_COMPILE is called with a src file
// signature
if (srcFileSignature)
{
tmpString = argv[1] + "/CMakeTmp";
binaryDirectory = tmpString.c_str();
}
// make sure the binary directory exists
cmSystemTools::MakeDirectory(binaryDirectory);
// do not allow recursive try Compiles
if (!strcmp(binaryDirectory,m_Makefile->GetHomeOutputDirectory()))
{
cmSystemTools::Error("Attempt at a recursive or nested TRY_COMPILE",
binaryDirectory);
return false;
}
// which signature are we using? If we are using var srcfile bindir
if (srcFileSignature)
{
// remove any CMakeCache.txt files so we will have a clean test
std::string ccFile = tmpString + "/CMakeCache.txt";
cmSystemTools::RemoveFile(ccFile.c_str());
// we need to create a directory and CMakeList file etc...
// first create the directories
sourceDirectory = binaryDirectory;
// now create a CMakeList.txt file in that directory
std::string outFileName = tmpString + "/CMakeLists.txt";
FILE *fout = fopen(outFileName.c_str(),"w");
if (!fout)
{
cmSystemTools::Error("Failed to create CMakeList file for ",
outFileName.c_str());
return false;
}
fprintf(fout,"PROJECT(CMAKE_TRY_COMPILE)\n");
fprintf(fout, "IF (CMAKE_ANSI_CXXFLAGS)\n");
fprintf(fout, " SET(CMAKE_CXX_FLAGS \"${CMAKE_CXX_FLAGS} ${CMAKE_ANSI_CXXFLAGS}\")\n");
fprintf(fout, "ENDIF (CMAKE_ANSI_CXXFLAGS)\n");
fprintf(fout,"ADD_EXECUTABLE(cmTryCompileExec \"%s\")\n",argv[2].c_str());
fclose(fout);
projectName = "CMAKE_TRY_COMPILE";
targetName = "cmTryCompileExec";
}
// else the srcdir bindir project target signature
else
{
projectName = argv[3].c_str();
if (argv.size() == 5)
{
targetName = argv[4].c_str();
}
}
// actually do the try compile now that everything is setup
int res = m_Makefile->TryCompile(sourceDirectory, binaryDirectory,
projectName, targetName, &cmakeFlags);
// set the result var to the return value to indicate success or failure
m_Makefile->AddDefinition(argv[0].c_str(), (res == 0 ? "TRUE" : "FALSE"));
// if we created a directory etc, then cleanup after ourselves
if (srcFileSignature)
{
cmDirectory dir;
dir.Load(binaryDirectory);
size_t fileNum;
for (fileNum = 0; fileNum < dir.GetNumberOfFiles(); ++fileNum)
{
if (strcmp(dir.GetFile(fileNum),".") &&
strcmp(dir.GetFile(fileNum),".."))
{
std::string fullPath = binaryDirectory;
fullPath += "/";
fullPath += dir.GetFile(fileNum);
cmSystemTools::RemoveFile(fullPath.c_str());
}
}
}
return true;
}
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