mirror of
https://github.com/reactos/CMake.git
synced 2024-11-24 20:19:53 +00:00
f8241136b4
ce0c303install: Teach EXPORT option to handle INTERFACE_LIBRARY targets435c912export: Add support for INTERFACE_LIBRARY targetsfe73226Add the INTERFACE_LIBRARY target type.
622 lines
20 KiB
C++
622 lines
20 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2011 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmCoreTryCompile.h"
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#include "cmake.h"
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#include "cmCacheManager.h"
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#include "cmLocalGenerator.h"
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#include "cmGlobalGenerator.h"
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#include "cmExportTryCompileFileGenerator.h"
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#include <cmsys/Directory.hxx>
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#include <assert.h>
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int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv)
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{
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this->BinaryDirectory = argv[1].c_str();
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this->OutputFile = "";
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// which signature were we called with ?
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this->SrcFileSignature = true;
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const char* sourceDirectory = argv[2].c_str();
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const char* projectName = 0;
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const char* targetName = 0;
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std::vector<std::string> cmakeFlags;
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std::vector<std::string> compileDefs;
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std::string outputVariable;
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std::string copyFile;
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std::string copyFileError;
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std::vector<cmTarget*> targets;
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std::string libsToLink = " ";
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bool useOldLinkLibs = true;
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char targetNameBuf[64];
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bool didOutputVariable = false;
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bool didCopyFile = false;
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bool didCopyFileError = false;
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bool useSources = argv[2] == "SOURCES";
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std::vector<std::string> sources;
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enum Doing { DoingNone, DoingCMakeFlags, DoingCompileDefinitions,
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DoingLinkLibraries, DoingOutputVariable, DoingCopyFile,
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DoingCopyFileError, DoingSources };
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Doing doing = useSources? DoingSources : DoingNone;
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for(size_t i=3; i < argv.size(); ++i)
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{
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if(argv[i] == "CMAKE_FLAGS")
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{
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doing = DoingCMakeFlags;
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// CMAKE_FLAGS is the first argument because we need an argv[0] that
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// is not used, so it matches regular command line parsing which has
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// the program name as arg 0
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cmakeFlags.push_back(argv[i]);
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}
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else if(argv[i] == "COMPILE_DEFINITIONS")
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{
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doing = DoingCompileDefinitions;
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}
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else if(argv[i] == "LINK_LIBRARIES")
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{
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doing = DoingLinkLibraries;
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useOldLinkLibs = false;
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}
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else if(argv[i] == "OUTPUT_VARIABLE")
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{
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doing = DoingOutputVariable;
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didOutputVariable = true;
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}
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else if(argv[i] == "COPY_FILE")
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{
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doing = DoingCopyFile;
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didCopyFile = true;
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}
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else if(argv[i] == "COPY_FILE_ERROR")
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{
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doing = DoingCopyFileError;
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didCopyFileError = true;
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}
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else if(doing == DoingCMakeFlags)
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{
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cmakeFlags.push_back(argv[i]);
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}
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else if(doing == DoingCompileDefinitions)
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{
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compileDefs.push_back(argv[i]);
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}
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else if(doing == DoingLinkLibraries)
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{
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libsToLink += "\"" + cmSystemTools::TrimWhitespace(argv[i]) + "\" ";
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if(cmTarget *tgt = this->Makefile->FindTargetToUse(argv[i].c_str()))
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{
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switch(tgt->GetType())
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{
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case cmTarget::SHARED_LIBRARY:
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case cmTarget::STATIC_LIBRARY:
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case cmTarget::INTERFACE_LIBRARY:
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case cmTarget::UNKNOWN_LIBRARY:
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break;
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case cmTarget::EXECUTABLE:
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if (tgt->IsExecutableWithExports())
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{
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break;
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}
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default:
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this->Makefile->IssueMessage(cmake::FATAL_ERROR,
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"Only libraries may be used as try_compile IMPORTED "
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"LINK_LIBRARIES. Got " + std::string(tgt->GetName()) + " of "
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"type " + tgt->GetTargetTypeName(tgt->GetType()) + ".");
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return -1;
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}
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if (tgt->IsImported())
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{
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targets.push_back(tgt);
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}
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}
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}
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else if(doing == DoingOutputVariable)
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{
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outputVariable = argv[i].c_str();
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doing = DoingNone;
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}
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else if(doing == DoingCopyFile)
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{
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copyFile = argv[i].c_str();
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doing = DoingNone;
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}
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else if(doing == DoingCopyFileError)
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{
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copyFileError = argv[i].c_str();
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doing = DoingNone;
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}
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else if(doing == DoingSources)
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{
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sources.push_back(argv[i]);
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}
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else if(i == 3)
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{
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this->SrcFileSignature = false;
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projectName = argv[i].c_str();
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}
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else if(i == 4 && !this->SrcFileSignature)
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{
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targetName = argv[i].c_str();
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}
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else
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{
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cmOStringStream m;
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m << "try_compile given unknown argument \"" << argv[i] << "\".";
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this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, m.str());
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}
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}
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if(didCopyFile && copyFile.empty())
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{
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this->Makefile->IssueMessage(cmake::FATAL_ERROR,
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"COPY_FILE must be followed by a file path");
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return -1;
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}
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if(didCopyFileError && copyFileError.empty())
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{
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this->Makefile->IssueMessage(cmake::FATAL_ERROR,
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"COPY_FILE_ERROR must be followed by a variable name");
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return -1;
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}
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if(didCopyFileError && !didCopyFile)
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{
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this->Makefile->IssueMessage(cmake::FATAL_ERROR,
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"COPY_FILE_ERROR may be used only with COPY_FILE");
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return -1;
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}
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if(didOutputVariable && outputVariable.empty())
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{
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this->Makefile->IssueMessage(cmake::FATAL_ERROR,
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"OUTPUT_VARIABLE must be followed by a variable name");
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return -1;
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}
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if(useSources && sources.empty())
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{
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this->Makefile->IssueMessage(cmake::FATAL_ERROR,
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"SOURCES must be followed by at least one source file");
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return -1;
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}
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// compute the binary dir when TRY_COMPILE is called with a src file
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// signature
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if (this->SrcFileSignature)
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{
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this->BinaryDirectory += cmake::GetCMakeFilesDirectory();
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this->BinaryDirectory += "/CMakeTmp";
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}
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else
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{
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// only valid for srcfile signatures
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if (compileDefs.size())
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{
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this->Makefile->IssueMessage(cmake::FATAL_ERROR,
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"COMPILE_DEFINITIONS specified on a srcdir type TRY_COMPILE");
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return -1;
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}
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if (copyFile.size())
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{
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this->Makefile->IssueMessage(cmake::FATAL_ERROR,
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"COPY_FILE specified on a srcdir type TRY_COMPILE");
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return -1;
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}
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}
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// make sure the binary directory exists
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cmSystemTools::MakeDirectory(this->BinaryDirectory.c_str());
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// do not allow recursive try Compiles
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if (this->BinaryDirectory == this->Makefile->GetHomeOutputDirectory())
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{
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cmOStringStream e;
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e << "Attempt at a recursive or nested TRY_COMPILE in directory\n"
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<< " " << this->BinaryDirectory << "\n";
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this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
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return -1;
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}
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std::string outFileName = this->BinaryDirectory + "/CMakeLists.txt";
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// which signature are we using? If we are using var srcfile bindir
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if (this->SrcFileSignature)
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{
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// remove any CMakeCache.txt files so we will have a clean test
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std::string ccFile = this->BinaryDirectory + "/CMakeCache.txt";
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cmSystemTools::RemoveFile(ccFile.c_str());
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// Choose sources.
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if(!useSources)
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{
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sources.push_back(argv[2]);
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}
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// Detect languages to enable.
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cmLocalGenerator* lg = this->Makefile->GetLocalGenerator();
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cmGlobalGenerator* gg = lg->GetGlobalGenerator();
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std::set<std::string> testLangs;
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for(std::vector<std::string>::iterator si = sources.begin();
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si != sources.end(); ++si)
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{
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std::string ext = cmSystemTools::GetFilenameLastExtension(*si);
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if(const char* lang = gg->GetLanguageFromExtension(ext.c_str()))
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{
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testLangs.insert(lang);
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}
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else
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{
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cmOStringStream err;
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err << "Unknown extension \"" << ext << "\" for file\n"
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<< " " << *si << "\n"
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<< "try_compile() works only for enabled languages. "
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<< "Currently these are:\n ";
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std::vector<std::string> langs;
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gg->GetEnabledLanguages(langs);
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for(std::vector<std::string>::iterator l = langs.begin();
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l != langs.end(); ++l)
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{
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err << " " << *l;
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}
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err << "\nSee project() command to enable other languages.";
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this->Makefile->IssueMessage(cmake::FATAL_ERROR, err.str());
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return -1;
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}
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}
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// we need to create a directory and CMakeLists file etc...
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// first create the directories
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sourceDirectory = this->BinaryDirectory.c_str();
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// now create a CMakeLists.txt file in that directory
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FILE *fout = fopen(outFileName.c_str(),"w");
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if (!fout)
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{
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cmOStringStream e;
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e << "Failed to open\n"
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<< " " << outFileName.c_str() << "\n"
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<< cmSystemTools::GetLastSystemError();
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this->Makefile->IssueMessage(cmake::FATAL_ERROR, e.str());
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return -1;
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}
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const char* def = this->Makefile->GetDefinition("CMAKE_MODULE_PATH");
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fprintf(fout, "cmake_minimum_required(VERSION %u.%u.%u.%u)\n",
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cmVersion::GetMajorVersion(), cmVersion::GetMinorVersion(),
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cmVersion::GetPatchVersion(), cmVersion::GetTweakVersion());
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if(def)
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{
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fprintf(fout, "set(CMAKE_MODULE_PATH %s)\n", def);
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}
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std::string projectLangs;
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for(std::set<std::string>::iterator li = testLangs.begin();
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li != testLangs.end(); ++li)
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{
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projectLangs += " " + *li;
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std::string rulesOverrideBase = "CMAKE_USER_MAKE_RULES_OVERRIDE";
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std::string rulesOverrideLang = rulesOverrideBase + "_" + *li;
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if(const char* rulesOverridePath =
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this->Makefile->GetDefinition(rulesOverrideLang.c_str()))
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{
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fprintf(fout, "set(%s \"%s\")\n",
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rulesOverrideLang.c_str(), rulesOverridePath);
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}
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else if(const char* rulesOverridePath2 =
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this->Makefile->GetDefinition(rulesOverrideBase.c_str()))
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{
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fprintf(fout, "set(%s \"%s\")\n",
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rulesOverrideBase.c_str(), rulesOverridePath2);
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}
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}
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fprintf(fout, "project(CMAKE_TRY_COMPILE%s)\n", projectLangs.c_str());
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fprintf(fout, "set(CMAKE_VERBOSE_MAKEFILE 1)\n");
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for(std::set<std::string>::iterator li = testLangs.begin();
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li != testLangs.end(); ++li)
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{
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std::string langFlags = "CMAKE_" + *li + "_FLAGS";
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const char* flags = this->Makefile->GetDefinition(langFlags.c_str());
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fprintf(fout, "set(CMAKE_%s_FLAGS %s)\n", li->c_str(),
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lg->EscapeForCMake(flags?flags:"").c_str());
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fprintf(fout, "set(CMAKE_%s_FLAGS \"${CMAKE_%s_FLAGS}"
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" ${COMPILE_DEFINITIONS}\")\n", li->c_str(), li->c_str());
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}
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fprintf(fout, "include_directories(${INCLUDE_DIRECTORIES})\n");
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fprintf(fout, "set(CMAKE_SUPPRESS_REGENERATION 1)\n");
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fprintf(fout, "link_directories(${LINK_DIRECTORIES})\n");
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// handle any compile flags we need to pass on
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if (compileDefs.size())
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{
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fprintf(fout, "add_definitions( ");
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for (size_t i = 0; i < compileDefs.size(); ++i)
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{
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fprintf(fout,"%s ",compileDefs[i].c_str());
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}
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fprintf(fout, ")\n");
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}
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/* Use a random file name to avoid rapid creation and deletion
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of the same executable name (some filesystems fail on that). */
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sprintf(targetNameBuf, "cmTryCompileExec%u",
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cmSystemTools::RandomSeed());
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targetName = targetNameBuf;
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if (!targets.empty())
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{
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std::string fname = "/" + std::string(targetName) + "Targets.cmake";
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cmExportTryCompileFileGenerator tcfg;
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tcfg.SetExportFile((this->BinaryDirectory + fname).c_str());
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tcfg.SetExports(targets);
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tcfg.SetConfig(this->Makefile->GetDefinition(
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"CMAKE_TRY_COMPILE_CONFIGURATION"));
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if(!tcfg.GenerateImportFile())
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{
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this->Makefile->IssueMessage(cmake::FATAL_ERROR,
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"could not write export file.");
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fclose(fout);
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return -1;
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}
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fprintf(fout,
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"\ninclude(\"${CMAKE_CURRENT_LIST_DIR}/%s\")\n\n",
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fname.c_str());
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}
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/* for the TRY_COMPILEs we want to be able to specify the architecture.
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So the user can set CMAKE_OSX_ARCHITECTURE to i386;ppc and then set
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CMAKE_TRY_COMPILE_OSX_ARCHITECTURE first to i386 and then to ppc to
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have the tests run for each specific architecture. Since
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cmLocalGenerator doesn't allow building for "the other"
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architecture only via CMAKE_OSX_ARCHITECTURES.
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*/
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if(this->Makefile->GetDefinition("CMAKE_TRY_COMPILE_OSX_ARCHITECTURES")!=0)
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{
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std::string flag="-DCMAKE_OSX_ARCHITECTURES=";
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flag += this->Makefile->GetSafeDefinition(
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"CMAKE_TRY_COMPILE_OSX_ARCHITECTURES");
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cmakeFlags.push_back(flag);
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}
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else if (this->Makefile->GetDefinition("CMAKE_OSX_ARCHITECTURES")!=0)
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{
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std::string flag="-DCMAKE_OSX_ARCHITECTURES=";
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flag += this->Makefile->GetSafeDefinition("CMAKE_OSX_ARCHITECTURES");
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cmakeFlags.push_back(flag);
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}
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/* on APPLE also pass CMAKE_OSX_SYSROOT to the try_compile */
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if(this->Makefile->GetDefinition("CMAKE_OSX_SYSROOT")!=0)
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{
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std::string flag="-DCMAKE_OSX_SYSROOT=";
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flag += this->Makefile->GetSafeDefinition("CMAKE_OSX_SYSROOT");
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cmakeFlags.push_back(flag);
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}
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/* on APPLE also pass CMAKE_OSX_DEPLOYMENT_TARGET to the try_compile */
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if(this->Makefile->GetDefinition("CMAKE_OSX_DEPLOYMENT_TARGET")!=0)
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{
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std::string flag="-DCMAKE_OSX_DEPLOYMENT_TARGET=";
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flag += this->Makefile->GetSafeDefinition("CMAKE_OSX_DEPLOYMENT_TARGET");
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cmakeFlags.push_back(flag);
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}
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if(this->Makefile->GetDefinition("CMAKE_POSITION_INDEPENDENT_CODE")!=0)
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{
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fprintf(fout, "set(CMAKE_POSITION_INDEPENDENT_CODE \"ON\")\n");
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}
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/* Put the executable at a known location (for COPY_FILE). */
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fprintf(fout, "set(CMAKE_RUNTIME_OUTPUT_DIRECTORY \"%s\")\n",
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this->BinaryDirectory.c_str());
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/* Create the actual executable. */
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fprintf(fout, "add_executable(%s", targetName);
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for(std::vector<std::string>::iterator si = sources.begin();
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si != sources.end(); ++si)
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{
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fprintf(fout, " \"%s\"", si->c_str());
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// Add dependencies on any non-temporary sources.
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if(si->find("CMakeTmp") == si->npos)
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{
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this->Makefile->AddCMakeDependFile(*si);
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}
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}
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fprintf(fout, ")\n");
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if (useOldLinkLibs)
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{
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fprintf(fout,
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"target_link_libraries(%s ${LINK_LIBRARIES})\n",targetName);
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}
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else
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{
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fprintf(fout, "target_link_libraries(%s %s)\n",
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targetName,
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libsToLink.c_str());
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}
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fclose(fout);
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projectName = "CMAKE_TRY_COMPILE";
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}
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bool erroroc = cmSystemTools::GetErrorOccuredFlag();
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cmSystemTools::ResetErrorOccuredFlag();
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std::string output;
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// actually do the try compile now that everything is setup
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int res = this->Makefile->TryCompile(sourceDirectory,
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this->BinaryDirectory.c_str(),
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projectName,
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targetName,
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this->SrcFileSignature,
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&cmakeFlags,
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&output);
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if ( erroroc )
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{
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cmSystemTools::SetErrorOccured();
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}
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// set the result var to the return value to indicate success or failure
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this->Makefile->AddCacheDefinition(argv[0].c_str(),
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(res == 0 ? "TRUE" : "FALSE"),
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"Result of TRY_COMPILE",
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cmCacheManager::INTERNAL);
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if ( outputVariable.size() > 0 )
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{
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this->Makefile->AddDefinition(outputVariable.c_str(), output.c_str());
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}
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if (this->SrcFileSignature)
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{
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std::string copyFileErrorMessage;
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this->FindOutputFile(targetName);
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if ((res==0) && (copyFile.size()))
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{
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if(this->OutputFile.empty() ||
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!cmSystemTools::CopyFileAlways(this->OutputFile.c_str(),
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copyFile.c_str()))
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{
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cmOStringStream emsg;
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emsg << "Cannot copy output executable\n"
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<< " '" << this->OutputFile.c_str() << "'\n"
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<< "to destination specified by COPY_FILE:\n"
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<< " '" << copyFile.c_str() << "'\n";
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|
if(!this->FindErrorMessage.empty())
|
|
{
|
|
emsg << this->FindErrorMessage.c_str();
|
|
}
|
|
if(copyFileError.empty())
|
|
{
|
|
this->Makefile->IssueMessage(cmake::FATAL_ERROR, emsg.str());
|
|
return -1;
|
|
}
|
|
else
|
|
{
|
|
copyFileErrorMessage = emsg.str();
|
|
}
|
|
}
|
|
}
|
|
|
|
if(!copyFileError.empty())
|
|
{
|
|
this->Makefile->AddDefinition(copyFileError.c_str(),
|
|
copyFileErrorMessage.c_str());
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
void cmCoreTryCompile::CleanupFiles(const char* binDir)
|
|
{
|
|
if ( !binDir )
|
|
{
|
|
return;
|
|
}
|
|
|
|
std::string bdir = binDir;
|
|
if(bdir.find("CMakeTmp") == std::string::npos)
|
|
{
|
|
cmSystemTools::Error(
|
|
"TRY_COMPILE attempt to remove -rf directory that does not contain "
|
|
"CMakeTmp:", binDir);
|
|
return;
|
|
}
|
|
|
|
cmsys::Directory dir;
|
|
dir.Load(binDir);
|
|
size_t fileNum;
|
|
std::set<cmStdString> deletedFiles;
|
|
for (fileNum = 0; fileNum < dir.GetNumberOfFiles(); ++fileNum)
|
|
{
|
|
if (strcmp(dir.GetFile(static_cast<unsigned long>(fileNum)),".") &&
|
|
strcmp(dir.GetFile(static_cast<unsigned long>(fileNum)),".."))
|
|
{
|
|
|
|
if(deletedFiles.find( dir.GetFile(static_cast<unsigned long>(fileNum)))
|
|
== deletedFiles.end())
|
|
{
|
|
deletedFiles.insert(dir.GetFile(static_cast<unsigned long>(fileNum)));
|
|
std::string fullPath = binDir;
|
|
fullPath += "/";
|
|
fullPath += dir.GetFile(static_cast<unsigned long>(fileNum));
|
|
if(cmSystemTools::FileIsDirectory(fullPath.c_str()))
|
|
{
|
|
this->CleanupFiles(fullPath.c_str());
|
|
cmSystemTools::RemoveADirectory(fullPath.c_str());
|
|
}
|
|
else
|
|
{
|
|
// Sometimes anti-virus software hangs on to new files so we
|
|
// cannot delete them immediately. Try a few times.
|
|
int tries = 5;
|
|
while(!cmSystemTools::RemoveFile(fullPath.c_str()) &&
|
|
--tries && cmSystemTools::FileExists(fullPath.c_str()))
|
|
{
|
|
cmSystemTools::Delay(500);
|
|
}
|
|
if(tries == 0)
|
|
{
|
|
std::string m = "Remove failed on file: " + fullPath;
|
|
cmSystemTools::ReportLastSystemError(m.c_str());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void cmCoreTryCompile::FindOutputFile(const char* targetName)
|
|
{
|
|
this->FindErrorMessage = "";
|
|
this->OutputFile = "";
|
|
std::string tmpOutputFile = "/";
|
|
tmpOutputFile += targetName;
|
|
tmpOutputFile +=this->Makefile->GetSafeDefinition("CMAKE_EXECUTABLE_SUFFIX");
|
|
|
|
// a list of directories where to search for the compilation result
|
|
// at first directly in the binary dir
|
|
std::vector<std::string> searchDirs;
|
|
searchDirs.push_back("");
|
|
|
|
const char* config = this->Makefile->GetDefinition(
|
|
"CMAKE_TRY_COMPILE_CONFIGURATION");
|
|
// if a config was specified try that first
|
|
if (config && config[0])
|
|
{
|
|
std::string tmp = "/";
|
|
tmp += config;
|
|
searchDirs.push_back(tmp);
|
|
}
|
|
searchDirs.push_back("/Debug");
|
|
searchDirs.push_back("/Development");
|
|
|
|
for(std::vector<std::string>::const_iterator it = searchDirs.begin();
|
|
it != searchDirs.end();
|
|
++it)
|
|
{
|
|
std::string command = this->BinaryDirectory;
|
|
command += *it;
|
|
command += tmpOutputFile;
|
|
if(cmSystemTools::FileExists(command.c_str()))
|
|
{
|
|
tmpOutputFile = cmSystemTools::CollapseFullPath(command.c_str());
|
|
this->OutputFile = tmpOutputFile;
|
|
return;
|
|
}
|
|
}
|
|
|
|
cmOStringStream emsg;
|
|
emsg << "Unable to find the executable at any of:\n";
|
|
for (unsigned int i = 0; i < searchDirs.size(); ++i)
|
|
{
|
|
emsg << " " << this->BinaryDirectory << searchDirs[i]
|
|
<< tmpOutputFile << "\n";
|
|
}
|
|
this->FindErrorMessage = emsg.str();
|
|
return;
|
|
}
|