mirror of
https://github.com/reactos/CMake.git
synced 2024-12-05 02:06:34 +00:00
984 lines
35 KiB
C++
984 lines
35 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmCoreTryCompile.h"
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#include "cmConfigure.h"
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#include "cmsys/Directory.hxx"
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#include <set>
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#include <sstream>
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#include <stdio.h>
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#include <string.h>
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#include <utility>
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#include "cmAlgorithms.h"
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#include "cmExportTryCompileFileGenerator.h"
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#include "cmGlobalGenerator.h"
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#include "cmMakefile.h"
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#include "cmOutputConverter.h"
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#include "cmPolicies.h"
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#include "cmState.h"
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#include "cmSystemTools.h"
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#include "cmTarget.h"
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#include "cmVersion.h"
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#include "cmake.h"
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static std::string const kCMAKE_C_COMPILER_EXTERNAL_TOOLCHAIN =
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"CMAKE_C_COMPILER_EXTERNAL_TOOLCHAIN";
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static std::string const kCMAKE_C_COMPILER_TARGET = "CMAKE_C_COMPILER_TARGET";
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static std::string const kCMAKE_CXX_COMPILER_EXTERNAL_TOOLCHAIN =
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"CMAKE_CXX_COMPILER_EXTERNAL_TOOLCHAIN";
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static std::string const kCMAKE_CXX_COMPILER_TARGET =
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"CMAKE_CXX_COMPILER_TARGET";
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static std::string const kCMAKE_ENABLE_EXPORTS = "CMAKE_ENABLE_EXPORTS";
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static std::string const kCMAKE_LINK_SEARCH_END_STATIC =
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"CMAKE_LINK_SEARCH_END_STATIC";
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static std::string const kCMAKE_LINK_SEARCH_START_STATIC =
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"CMAKE_LINK_SEARCH_START_STATIC";
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static std::string const kCMAKE_OSX_ARCHITECTURES = "CMAKE_OSX_ARCHITECTURES";
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static std::string const kCMAKE_OSX_DEPLOYMENT_TARGET =
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"CMAKE_OSX_DEPLOYMENT_TARGET";
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static std::string const kCMAKE_OSX_SYSROOT = "CMAKE_OSX_SYSROOT";
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static std::string const kCMAKE_POSITION_INDEPENDENT_CODE =
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"CMAKE_POSITION_INDEPENDENT_CODE";
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static std::string const kCMAKE_SYSROOT = "CMAKE_SYSROOT";
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static std::string const kCMAKE_SYSROOT_COMPILE = "CMAKE_SYSROOT_COMPILE";
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static std::string const kCMAKE_SYSROOT_LINK = "CMAKE_SYSROOT_LINK";
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static std::string const kCMAKE_TRY_COMPILE_OSX_ARCHITECTURES =
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"CMAKE_TRY_COMPILE_OSX_ARCHITECTURES";
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static std::string const kCMAKE_TRY_COMPILE_PLATFORM_VARIABLES =
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"CMAKE_TRY_COMPILE_PLATFORM_VARIABLES";
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static std::string const kCMAKE_WARN_DEPRECATED = "CMAKE_WARN_DEPRECATED";
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static void writeProperty(FILE* fout, std::string const& targetName,
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std::string const& prop, std::string const& value)
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{
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fprintf(fout, "set_property(TARGET %s PROPERTY %s %s)\n", targetName.c_str(),
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cmOutputConverter::EscapeForCMake(prop).c_str(),
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cmOutputConverter::EscapeForCMake(value).c_str());
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}
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std::string cmCoreTryCompile::LookupStdVar(std::string const& var,
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bool warnCMP0067)
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{
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std::string value = this->Makefile->GetSafeDefinition(var);
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if (warnCMP0067 && !value.empty()) {
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value.clear();
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this->WarnCMP0067.push_back(var);
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}
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return value;
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}
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int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv,
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bool isTryRun)
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{
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this->BinaryDirectory = argv[1];
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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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cmStateEnums::TargetType targetType = cmStateEnums::EXECUTABLE;
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const char* tt =
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this->Makefile->GetDefinition("CMAKE_TRY_COMPILE_TARGET_TYPE");
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if (!isTryRun && tt && *tt) {
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if (strcmp(tt, cmState::GetTargetTypeName(cmStateEnums::EXECUTABLE)) ==
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0) {
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targetType = cmStateEnums::EXECUTABLE;
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} else if (strcmp(tt, cmState::GetTargetTypeName(
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cmStateEnums::STATIC_LIBRARY)) == 0) {
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targetType = cmStateEnums::STATIC_LIBRARY;
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} else {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR, std::string("Invalid value '") + tt +
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"' for "
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"CMAKE_TRY_COMPILE_TARGET_TYPE. Only "
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"'" +
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cmState::GetTargetTypeName(cmStateEnums::EXECUTABLE) + "' and "
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"'" +
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cmState::GetTargetTypeName(cmStateEnums::STATIC_LIBRARY) +
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"' "
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"are allowed.");
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return -1;
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}
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}
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const char* sourceDirectory = argv[2].c_str();
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const char* projectName = CM_NULLPTR;
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std::string targetName;
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std::vector<std::string> cmakeFlags(1, "CMAKE_FLAGS"); // fake argv[0]
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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::string cStandard;
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std::string cxxStandard;
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std::string cudaStandard;
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std::string cStandardRequired;
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std::string cxxStandardRequired;
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std::string cudaStandardRequired;
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std::string cExtensions;
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std::string cxxExtensions;
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std::string cudaExtensions;
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std::vector<std::string> 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 didCStandard = false;
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bool didCxxStandard = false;
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bool didCudaStandard = false;
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bool didCStandardRequired = false;
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bool didCxxStandardRequired = false;
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bool didCudaStandardRequired = false;
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bool didCExtensions = false;
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bool didCxxExtensions = false;
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bool didCudaExtensions = 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
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{
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DoingNone,
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DoingCMakeFlags,
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DoingCompileDefinitions,
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DoingLinkLibraries,
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DoingOutputVariable,
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DoingCopyFile,
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DoingCopyFileError,
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DoingCStandard,
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DoingCxxStandard,
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DoingCudaStandard,
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DoingCStandardRequired,
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DoingCxxStandardRequired,
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DoingCudaStandardRequired,
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DoingCExtensions,
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DoingCxxExtensions,
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DoingCudaExtensions,
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DoingSources
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};
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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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if (argv[i] == "CMAKE_FLAGS") {
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doing = DoingCMakeFlags;
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} else if (argv[i] == "COMPILE_DEFINITIONS") {
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doing = DoingCompileDefinitions;
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} else if (argv[i] == "LINK_LIBRARIES") {
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doing = DoingLinkLibraries;
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useOldLinkLibs = false;
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} else if (argv[i] == "OUTPUT_VARIABLE") {
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doing = DoingOutputVariable;
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didOutputVariable = true;
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} else if (argv[i] == "COPY_FILE") {
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doing = DoingCopyFile;
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didCopyFile = true;
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} else if (argv[i] == "COPY_FILE_ERROR") {
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doing = DoingCopyFileError;
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didCopyFileError = true;
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} else if (argv[i] == "C_STANDARD") {
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doing = DoingCStandard;
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didCStandard = true;
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} else if (argv[i] == "CXX_STANDARD") {
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doing = DoingCxxStandard;
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didCxxStandard = true;
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} else if (argv[i] == "CUDA_STANDARD") {
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doing = DoingCudaStandard;
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didCudaStandard = true;
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} else if (argv[i] == "C_STANDARD_REQUIRED") {
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doing = DoingCStandardRequired;
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didCStandardRequired = true;
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} else if (argv[i] == "CXX_STANDARD_REQUIRED") {
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doing = DoingCxxStandardRequired;
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didCxxStandardRequired = true;
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} else if (argv[i] == "CUDA_STANDARD_REQUIRED") {
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doing = DoingCudaStandardRequired;
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didCudaStandardRequired = true;
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} else if (argv[i] == "C_EXTENSIONS") {
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doing = DoingCExtensions;
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didCExtensions = true;
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} else if (argv[i] == "CXX_EXTENSIONS") {
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doing = DoingCxxExtensions;
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didCxxExtensions = true;
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} else if (argv[i] == "CUDA_EXTENSIONS") {
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doing = DoingCudaExtensions;
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didCudaExtensions = true;
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} else if (doing == DoingCMakeFlags) {
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cmakeFlags.push_back(argv[i]);
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} else if (doing == DoingCompileDefinitions) {
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compileDefs.push_back(argv[i]);
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} else if (doing == DoingLinkLibraries) {
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libsToLink += "\"" + cmSystemTools::TrimWhitespace(argv[i]) + "\" ";
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if (cmTarget* tgt = this->Makefile->FindTargetToUse(argv[i])) {
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switch (tgt->GetType()) {
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case cmStateEnums::SHARED_LIBRARY:
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case cmStateEnums::STATIC_LIBRARY:
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case cmStateEnums::INTERFACE_LIBRARY:
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case cmStateEnums::UNKNOWN_LIBRARY:
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break;
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case cmStateEnums::EXECUTABLE:
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if (tgt->IsExecutableWithExports()) {
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break;
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}
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CM_FALLTHROUGH;
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default:
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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"Only libraries may be used as try_compile or try_run IMPORTED "
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"LINK_LIBRARIES. Got " +
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std::string(tgt->GetName()) + " of "
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"type " +
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cmState::GetTargetTypeName(tgt->GetType()) + ".");
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return -1;
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}
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if (tgt->IsImported()) {
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targets.push_back(argv[i]);
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}
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}
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} else if (doing == DoingOutputVariable) {
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outputVariable = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCopyFile) {
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copyFile = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCopyFileError) {
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copyFileError = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCStandard) {
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cStandard = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCxxStandard) {
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cxxStandard = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCudaStandard) {
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cudaStandard = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCStandardRequired) {
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cStandardRequired = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCxxStandardRequired) {
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cxxStandardRequired = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCudaStandardRequired) {
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cudaStandardRequired = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCExtensions) {
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cExtensions = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCxxExtensions) {
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cxxExtensions = argv[i];
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doing = DoingNone;
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} else if (doing == DoingCudaExtensions) {
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cudaExtensions = argv[i];
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doing = DoingNone;
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} else if (doing == DoingSources) {
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sources.push_back(argv[i]);
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} else if (i == 3) {
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this->SrcFileSignature = false;
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projectName = argv[i].c_str();
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} else if (i == 4 && !this->SrcFileSignature) {
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targetName = argv[i];
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} else {
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std::ostringstream 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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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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this->Makefile->IssueMessage(
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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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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR, "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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this->Makefile->IssueMessage(
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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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this->Makefile->IssueMessage(
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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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if (didCStandard && !this->SrcFileSignature) {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR, "C_STANDARD allowed only in source file signature.");
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return -1;
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}
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if (didCxxStandard && !this->SrcFileSignature) {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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"CXX_STANDARD allowed only in source file signature.");
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return -1;
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}
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if (didCudaStandard && !this->SrcFileSignature) {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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"CUDA_STANDARD allowed only in source file signature.");
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return -1;
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}
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if (didCStandardRequired && !this->SrcFileSignature) {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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"C_STANDARD_REQUIRED allowed only in source file signature.");
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return -1;
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}
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if (didCxxStandardRequired && !this->SrcFileSignature) {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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"CXX_STANDARD_REQUIRED allowed only in source file signature.");
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return -1;
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}
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if (didCudaStandardRequired && !this->SrcFileSignature) {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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"CUDA_STANDARD_REQUIRED allowed only in source file signature.");
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return -1;
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}
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if (didCExtensions && !this->SrcFileSignature) {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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"C_EXTENSIONS allowed only in source file signature.");
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return -1;
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}
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if (didCxxExtensions && !this->SrcFileSignature) {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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"CXX_EXTENSIONS allowed only in source file signature.");
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return -1;
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}
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if (didCudaExtensions && !this->SrcFileSignature) {
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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"CUDA_EXTENSIONS allowed only in source file signature.");
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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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this->BinaryDirectory += cmake::GetCMakeFilesDirectory();
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this->BinaryDirectory += "/CMakeTmp";
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} else {
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// only valid for srcfile signatures
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if (!compileDefs.empty()) {
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this->Makefile->IssueMessage(
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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.empty()) {
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this->Makefile->IssueMessage(
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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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std::ostringstream 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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// 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);
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// Choose sources.
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if (!useSources) {
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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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cmGlobalGenerator* gg = this->Makefile->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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std::string ext = cmSystemTools::GetFilenameLastExtension(*si);
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std::string lang = gg->GetLanguageFromExtension(ext.c_str());
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if (!lang.empty()) {
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testLangs.insert(lang);
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} else {
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std::ostringstream 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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err << cmJoin(langs, " ");
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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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std::string const tcConfig =
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this->Makefile->GetSafeDefinition("CMAKE_TRY_COMPILE_CONFIGURATION");
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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 = cmsys::SystemTools::Fopen(outFileName, "w");
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if (!fout) {
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std::ostringstream e;
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/* clang-format off */
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e << "Failed to open\n"
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<< " " << outFileName << "\n"
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<< cmSystemTools::GetLastSystemError();
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/* clang-format on */
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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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fprintf(fout, "set(CMAKE_MODULE_PATH \"%s\")\n", def);
|
|
}
|
|
|
|
std::string projectLangs;
|
|
for (std::set<std::string>::iterator li = testLangs.begin();
|
|
li != testLangs.end(); ++li) {
|
|
projectLangs += " " + *li;
|
|
std::string rulesOverrideBase = "CMAKE_USER_MAKE_RULES_OVERRIDE";
|
|
std::string rulesOverrideLang = rulesOverrideBase + "_" + *li;
|
|
if (const char* rulesOverridePath =
|
|
this->Makefile->GetDefinition(rulesOverrideLang)) {
|
|
fprintf(fout, "set(%s \"%s\")\n", rulesOverrideLang.c_str(),
|
|
rulesOverridePath);
|
|
} else if (const char* rulesOverridePath2 =
|
|
this->Makefile->GetDefinition(rulesOverrideBase)) {
|
|
fprintf(fout, "set(%s \"%s\")\n", rulesOverrideBase.c_str(),
|
|
rulesOverridePath2);
|
|
}
|
|
}
|
|
fprintf(fout, "project(CMAKE_TRY_COMPILE%s)\n", projectLangs.c_str());
|
|
fprintf(fout, "set(CMAKE_VERBOSE_MAKEFILE 1)\n");
|
|
for (std::set<std::string>::iterator li = testLangs.begin();
|
|
li != testLangs.end(); ++li) {
|
|
std::string langFlags = "CMAKE_" + *li + "_FLAGS";
|
|
const char* flags = this->Makefile->GetDefinition(langFlags);
|
|
fprintf(fout, "set(CMAKE_%s_FLAGS %s)\n", li->c_str(),
|
|
cmOutputConverter::EscapeForCMake(flags ? flags : "").c_str());
|
|
fprintf(fout, "set(CMAKE_%s_FLAGS \"${CMAKE_%s_FLAGS}"
|
|
" ${COMPILE_DEFINITIONS}\")\n",
|
|
li->c_str(), li->c_str());
|
|
}
|
|
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0066)) {
|
|
case cmPolicies::WARN:
|
|
if (this->Makefile->PolicyOptionalWarningEnabled(
|
|
"CMAKE_POLICY_WARNING_CMP0066")) {
|
|
std::ostringstream w;
|
|
/* clang-format off */
|
|
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0066) << "\n"
|
|
"For compatibility with older versions of CMake, try_compile "
|
|
"is not honoring caller config-specific compiler flags "
|
|
"(e.g. CMAKE_C_FLAGS_DEBUG) in the test project."
|
|
;
|
|
/* clang-format on */
|
|
this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w.str());
|
|
}
|
|
case cmPolicies::OLD:
|
|
// OLD behavior is to do nothing.
|
|
break;
|
|
case cmPolicies::REQUIRED_IF_USED:
|
|
case cmPolicies::REQUIRED_ALWAYS:
|
|
this->Makefile->IssueMessage(
|
|
cmake::FATAL_ERROR,
|
|
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0066));
|
|
CM_FALLTHROUGH;
|
|
case cmPolicies::NEW: {
|
|
// NEW behavior is to pass config-specific compiler flags.
|
|
static std::string const cfgDefault = "DEBUG";
|
|
std::string const cfg =
|
|
!tcConfig.empty() ? cmSystemTools::UpperCase(tcConfig) : cfgDefault;
|
|
for (std::set<std::string>::iterator li = testLangs.begin();
|
|
li != testLangs.end(); ++li) {
|
|
std::string const langFlagsCfg = "CMAKE_" + *li + "_FLAGS_" + cfg;
|
|
const char* flagsCfg = this->Makefile->GetDefinition(langFlagsCfg);
|
|
fprintf(fout, "set(%s %s)\n", langFlagsCfg.c_str(),
|
|
cmOutputConverter::EscapeForCMake(flagsCfg ? flagsCfg : "")
|
|
.c_str());
|
|
}
|
|
} break;
|
|
}
|
|
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0056)) {
|
|
case cmPolicies::WARN:
|
|
if (this->Makefile->PolicyOptionalWarningEnabled(
|
|
"CMAKE_POLICY_WARNING_CMP0056")) {
|
|
std::ostringstream w;
|
|
/* clang-format off */
|
|
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0056) << "\n"
|
|
"For compatibility with older versions of CMake, try_compile "
|
|
"is not honoring caller link flags (e.g. CMAKE_EXE_LINKER_FLAGS) "
|
|
"in the test project."
|
|
;
|
|
/* clang-format on */
|
|
this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w.str());
|
|
}
|
|
case cmPolicies::OLD:
|
|
// OLD behavior is to do nothing.
|
|
break;
|
|
case cmPolicies::REQUIRED_IF_USED:
|
|
case cmPolicies::REQUIRED_ALWAYS:
|
|
this->Makefile->IssueMessage(
|
|
cmake::FATAL_ERROR,
|
|
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0056));
|
|
CM_FALLTHROUGH;
|
|
case cmPolicies::NEW:
|
|
// NEW behavior is to pass linker flags.
|
|
{
|
|
const char* exeLinkFlags =
|
|
this->Makefile->GetDefinition("CMAKE_EXE_LINKER_FLAGS");
|
|
fprintf(
|
|
fout, "set(CMAKE_EXE_LINKER_FLAGS %s)\n",
|
|
cmOutputConverter::EscapeForCMake(exeLinkFlags ? exeLinkFlags : "")
|
|
.c_str());
|
|
}
|
|
break;
|
|
}
|
|
fprintf(fout, "set(CMAKE_EXE_LINKER_FLAGS \"${CMAKE_EXE_LINKER_FLAGS}"
|
|
" ${EXE_LINKER_FLAGS}\")\n");
|
|
fprintf(fout, "include_directories(${INCLUDE_DIRECTORIES})\n");
|
|
fprintf(fout, "set(CMAKE_SUPPRESS_REGENERATION 1)\n");
|
|
fprintf(fout, "link_directories(${LINK_DIRECTORIES})\n");
|
|
// handle any compile flags we need to pass on
|
|
if (!compileDefs.empty()) {
|
|
fprintf(fout, "add_definitions(%s)\n", cmJoin(compileDefs, " ").c_str());
|
|
}
|
|
|
|
/* Use a random file name to avoid rapid creation and deletion
|
|
of the same executable name (some filesystems fail on that). */
|
|
sprintf(targetNameBuf, "cmTC_%05x", cmSystemTools::RandomSeed() & 0xFFFFF);
|
|
targetName = targetNameBuf;
|
|
|
|
if (!targets.empty()) {
|
|
std::string fname = "/" + std::string(targetName) + "Targets.cmake";
|
|
cmExportTryCompileFileGenerator tcfg(gg, targets, this->Makefile);
|
|
tcfg.SetExportFile((this->BinaryDirectory + fname).c_str());
|
|
tcfg.SetConfig(tcConfig);
|
|
|
|
if (!tcfg.GenerateImportFile()) {
|
|
this->Makefile->IssueMessage(cmake::FATAL_ERROR,
|
|
"could not write export file.");
|
|
fclose(fout);
|
|
return -1;
|
|
}
|
|
fprintf(fout, "\ninclude(\"${CMAKE_CURRENT_LIST_DIR}/%s\")\n\n",
|
|
fname.c_str());
|
|
}
|
|
|
|
// Forward a set of variables to the inner project cache.
|
|
{
|
|
std::set<std::string> vars;
|
|
vars.insert(kCMAKE_C_COMPILER_EXTERNAL_TOOLCHAIN);
|
|
vars.insert(kCMAKE_C_COMPILER_TARGET);
|
|
vars.insert(kCMAKE_CXX_COMPILER_EXTERNAL_TOOLCHAIN);
|
|
vars.insert(kCMAKE_CXX_COMPILER_TARGET);
|
|
vars.insert(kCMAKE_ENABLE_EXPORTS);
|
|
vars.insert(kCMAKE_LINK_SEARCH_END_STATIC);
|
|
vars.insert(kCMAKE_LINK_SEARCH_START_STATIC);
|
|
vars.insert(kCMAKE_OSX_ARCHITECTURES);
|
|
vars.insert(kCMAKE_OSX_DEPLOYMENT_TARGET);
|
|
vars.insert(kCMAKE_OSX_SYSROOT);
|
|
vars.insert(kCMAKE_POSITION_INDEPENDENT_CODE);
|
|
vars.insert(kCMAKE_SYSROOT);
|
|
vars.insert(kCMAKE_SYSROOT_COMPILE);
|
|
vars.insert(kCMAKE_SYSROOT_LINK);
|
|
vars.insert(kCMAKE_WARN_DEPRECATED);
|
|
|
|
if (const char* varListStr = this->Makefile->GetDefinition(
|
|
kCMAKE_TRY_COMPILE_PLATFORM_VARIABLES)) {
|
|
std::vector<std::string> varList;
|
|
cmSystemTools::ExpandListArgument(varListStr, varList);
|
|
vars.insert(varList.begin(), varList.end());
|
|
}
|
|
|
|
/* for the TRY_COMPILEs we want to be able to specify the architecture.
|
|
So the user can set CMAKE_OSX_ARCHITECTURES to i386;ppc and then set
|
|
CMAKE_TRY_COMPILE_OSX_ARCHITECTURES first to i386 and then to ppc to
|
|
have the tests run for each specific architecture. Since
|
|
cmLocalGenerator doesn't allow building for "the other"
|
|
architecture only via CMAKE_OSX_ARCHITECTURES.
|
|
*/
|
|
if (const char* tcArchs = this->Makefile->GetDefinition(
|
|
kCMAKE_TRY_COMPILE_OSX_ARCHITECTURES)) {
|
|
vars.erase(kCMAKE_OSX_ARCHITECTURES);
|
|
std::string flag = "-DCMAKE_OSX_ARCHITECTURES=" + std::string(tcArchs);
|
|
cmakeFlags.push_back(flag);
|
|
}
|
|
|
|
for (std::set<std::string>::iterator vi = vars.begin(); vi != vars.end();
|
|
++vi) {
|
|
std::string const& var = *vi;
|
|
if (const char* val = this->Makefile->GetDefinition(var)) {
|
|
std::string flag = "-D" + var + "=" + val;
|
|
cmakeFlags.push_back(flag);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Set the appropriate policy information for ENABLE_EXPORTS */
|
|
fprintf(fout, "cmake_policy(SET CMP0065 %s)\n",
|
|
this->Makefile->GetPolicyStatus(cmPolicies::CMP0065) ==
|
|
cmPolicies::NEW
|
|
? "NEW"
|
|
: "OLD");
|
|
|
|
if (targetType == cmStateEnums::EXECUTABLE) {
|
|
/* Put the executable at a known location (for COPY_FILE). */
|
|
fprintf(fout, "set(CMAKE_RUNTIME_OUTPUT_DIRECTORY \"%s\")\n",
|
|
this->BinaryDirectory.c_str());
|
|
/* Create the actual executable. */
|
|
fprintf(fout, "add_executable(%s", targetName.c_str());
|
|
} else // if (targetType == cmStateEnums::STATIC_LIBRARY)
|
|
{
|
|
/* Put the static library at a known location (for COPY_FILE). */
|
|
fprintf(fout, "set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY \"%s\")\n",
|
|
this->BinaryDirectory.c_str());
|
|
/* Create the actual static library. */
|
|
fprintf(fout, "add_library(%s STATIC", targetName.c_str());
|
|
}
|
|
for (std::vector<std::string>::iterator si = sources.begin();
|
|
si != sources.end(); ++si) {
|
|
fprintf(fout, " \"%s\"", si->c_str());
|
|
|
|
// Add dependencies on any non-temporary sources.
|
|
if (si->find("CMakeTmp") == std::string::npos) {
|
|
this->Makefile->AddCMakeDependFile(*si);
|
|
}
|
|
}
|
|
fprintf(fout, ")\n");
|
|
|
|
bool const testC = testLangs.find("C") != testLangs.end();
|
|
bool const testCxx = testLangs.find("CXX") != testLangs.end();
|
|
bool const testCuda = testLangs.find("CUDA") != testLangs.end();
|
|
|
|
bool warnCMP0067 = false;
|
|
bool honorStandard = true;
|
|
|
|
if (!didCStandard && !didCxxStandard && !didCudaStandard &&
|
|
!didCStandardRequired && !didCxxStandardRequired &&
|
|
!didCudaStandardRequired && !didCExtensions && !didCxxExtensions &&
|
|
!didCudaExtensions) {
|
|
switch (this->Makefile->GetPolicyStatus(cmPolicies::CMP0067)) {
|
|
case cmPolicies::WARN:
|
|
warnCMP0067 = this->Makefile->PolicyOptionalWarningEnabled(
|
|
"CMAKE_POLICY_WARNING_CMP0067");
|
|
CM_FALLTHROUGH;
|
|
case cmPolicies::OLD:
|
|
// OLD behavior is to not honor the language standard variables.
|
|
honorStandard = false;
|
|
break;
|
|
case cmPolicies::REQUIRED_IF_USED:
|
|
case cmPolicies::REQUIRED_ALWAYS:
|
|
this->Makefile->IssueMessage(
|
|
cmake::FATAL_ERROR,
|
|
cmPolicies::GetRequiredPolicyError(cmPolicies::CMP0067));
|
|
case cmPolicies::NEW:
|
|
// NEW behavior is to honor the language standard variables.
|
|
// We already initialized honorStandard to true.
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (honorStandard || warnCMP0067) {
|
|
if (testC) {
|
|
if (!didCStandard) {
|
|
cStandard = this->LookupStdVar("CMAKE_C_STANDARD", warnCMP0067);
|
|
}
|
|
if (!didCStandardRequired) {
|
|
cStandardRequired =
|
|
this->LookupStdVar("CMAKE_C_STANDARD_REQUIRED", warnCMP0067);
|
|
}
|
|
if (!didCExtensions) {
|
|
cExtensions = this->LookupStdVar("CMAKE_C_EXTENSIONS", warnCMP0067);
|
|
}
|
|
}
|
|
if (testCxx) {
|
|
if (!didCxxStandard) {
|
|
cxxStandard = this->LookupStdVar("CMAKE_CXX_STANDARD", warnCMP0067);
|
|
}
|
|
if (!didCxxStandardRequired) {
|
|
cxxStandardRequired =
|
|
this->LookupStdVar("CMAKE_CXX_STANDARD_REQUIRED", warnCMP0067);
|
|
}
|
|
if (!didCxxExtensions) {
|
|
cxxExtensions =
|
|
this->LookupStdVar("CMAKE_CXX_EXTENSIONS", warnCMP0067);
|
|
}
|
|
}
|
|
if (testCuda) {
|
|
if (!didCudaStandard) {
|
|
cudaStandard =
|
|
this->LookupStdVar("CMAKE_CUDA_STANDARD", warnCMP0067);
|
|
}
|
|
if (!didCudaStandardRequired) {
|
|
cudaStandardRequired =
|
|
this->LookupStdVar("CMAKE_CUDA_STANDARD_REQUIRED", warnCMP0067);
|
|
}
|
|
if (!didCudaExtensions) {
|
|
cudaExtensions =
|
|
this->LookupStdVar("CMAKE_CUDA_EXTENSIONS", warnCMP0067);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!this->WarnCMP0067.empty()) {
|
|
std::ostringstream w;
|
|
/* clang-format off */
|
|
w << cmPolicies::GetPolicyWarning(cmPolicies::CMP0067) << "\n"
|
|
"For compatibility with older versions of CMake, try_compile "
|
|
"is not honoring language standard variables in the test project:\n"
|
|
;
|
|
/* clang-format on */
|
|
for (std::vector<std::string>::iterator vi = this->WarnCMP0067.begin();
|
|
vi != this->WarnCMP0067.end(); ++vi) {
|
|
w << " " << *vi << "\n";
|
|
}
|
|
this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, w.str());
|
|
}
|
|
|
|
if (testC) {
|
|
if (!cStandard.empty()) {
|
|
writeProperty(fout, targetName, "C_STANDARD", cStandard);
|
|
}
|
|
if (!cStandardRequired.empty()) {
|
|
writeProperty(fout, targetName, "C_STANDARD_REQUIRED",
|
|
cStandardRequired);
|
|
}
|
|
if (!cExtensions.empty()) {
|
|
writeProperty(fout, targetName, "C_EXTENSIONS", cExtensions);
|
|
}
|
|
}
|
|
|
|
if (testCxx) {
|
|
if (!cxxStandard.empty()) {
|
|
writeProperty(fout, targetName, "CXX_STANDARD", cxxStandard);
|
|
}
|
|
if (!cxxStandardRequired.empty()) {
|
|
writeProperty(fout, targetName, "CXX_STANDARD_REQUIRED",
|
|
cxxStandardRequired);
|
|
}
|
|
if (!cxxExtensions.empty()) {
|
|
writeProperty(fout, targetName, "CXX_EXTENSIONS", cxxExtensions);
|
|
}
|
|
}
|
|
|
|
if (testCuda) {
|
|
if (!cudaStandard.empty()) {
|
|
writeProperty(fout, targetName, "CUDA_STANDARD", cudaStandard);
|
|
}
|
|
if (!cudaStandardRequired.empty()) {
|
|
writeProperty(fout, targetName, "CUDA_STANDARD_REQUIRED",
|
|
cudaStandardRequired);
|
|
}
|
|
if (!cudaExtensions.empty()) {
|
|
writeProperty(fout, targetName, "CUDA_EXTENSIONS", cudaExtensions);
|
|
}
|
|
}
|
|
|
|
if (useOldLinkLibs) {
|
|
fprintf(fout, "target_link_libraries(%s ${LINK_LIBRARIES})\n",
|
|
targetName.c_str());
|
|
} else {
|
|
fprintf(fout, "target_link_libraries(%s %s)\n", targetName.c_str(),
|
|
libsToLink.c_str());
|
|
}
|
|
fclose(fout);
|
|
projectName = "CMAKE_TRY_COMPILE";
|
|
}
|
|
|
|
bool erroroc = cmSystemTools::GetErrorOccuredFlag();
|
|
cmSystemTools::ResetErrorOccuredFlag();
|
|
std::string output;
|
|
// actually do the try compile now that everything is setup
|
|
int res = this->Makefile->TryCompile(
|
|
sourceDirectory, this->BinaryDirectory, projectName, targetName,
|
|
this->SrcFileSignature, &cmakeFlags, output);
|
|
if (erroroc) {
|
|
cmSystemTools::SetErrorOccured();
|
|
}
|
|
|
|
// set the result var to the return value to indicate success or failure
|
|
this->Makefile->AddCacheDefinition(argv[0], (res == 0 ? "TRUE" : "FALSE"),
|
|
"Result of TRY_COMPILE",
|
|
cmStateEnums::INTERNAL);
|
|
|
|
if (!outputVariable.empty()) {
|
|
this->Makefile->AddDefinition(outputVariable, output.c_str());
|
|
}
|
|
|
|
if (this->SrcFileSignature) {
|
|
std::string copyFileErrorMessage;
|
|
this->FindOutputFile(targetName, targetType);
|
|
|
|
if ((res == 0) && !copyFile.empty()) {
|
|
if (this->OutputFile.empty() ||
|
|
!cmSystemTools::CopyFileAlways(this->OutputFile, copyFile)) {
|
|
std::ostringstream emsg;
|
|
/* clang-format off */
|
|
emsg << "Cannot copy output executable\n"
|
|
<< " '" << this->OutputFile << "'\n"
|
|
<< "to destination specified by COPY_FILE:\n"
|
|
<< " '" << copyFile << "'\n";
|
|
/* clang-format on */
|
|
if (!this->FindErrorMessage.empty()) {
|
|
emsg << this->FindErrorMessage.c_str();
|
|
}
|
|
if (copyFileError.empty()) {
|
|
this->Makefile->IssueMessage(cmake::FATAL_ERROR, emsg.str());
|
|
return -1;
|
|
}
|
|
copyFileErrorMessage = emsg.str();
|
|
}
|
|
}
|
|
|
|
if (!copyFileError.empty()) {
|
|
this->Makefile->AddDefinition(copyFileError,
|
|
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);
|
|
std::set<std::string> deletedFiles;
|
|
for (unsigned long i = 0; i < dir.GetNumberOfFiles(); ++i) {
|
|
const char* fileName = dir.GetFile(i);
|
|
if (strcmp(fileName, ".") != 0 && strcmp(fileName, "..") != 0) {
|
|
if (deletedFiles.insert(fileName).second) {
|
|
std::string const fullPath =
|
|
std::string(binDir).append("/").append(fileName);
|
|
if (cmSystemTools::FileIsDirectory(fullPath)) {
|
|
this->CleanupFiles(fullPath.c_str());
|
|
cmSystemTools::RemoveADirectory(fullPath);
|
|
} else {
|
|
#ifdef _WIN32
|
|
// Sometimes anti-virus software hangs on to new files so we
|
|
// cannot delete them immediately. Try a few times.
|
|
cmSystemTools::WindowsFileRetry retry =
|
|
cmSystemTools::GetWindowsFileRetry();
|
|
while (!cmSystemTools::RemoveFile(fullPath.c_str()) &&
|
|
--retry.Count &&
|
|
cmSystemTools::FileExists(fullPath.c_str())) {
|
|
cmSystemTools::Delay(retry.Delay);
|
|
}
|
|
if (retry.Count == 0)
|
|
#else
|
|
if (!cmSystemTools::RemoveFile(fullPath))
|
|
#endif
|
|
{
|
|
std::string m = "Remove failed on file: " + fullPath;
|
|
cmSystemTools::ReportLastSystemError(m.c_str());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void cmCoreTryCompile::FindOutputFile(const std::string& targetName,
|
|
cmStateEnums::TargetType targetType)
|
|
{
|
|
this->FindErrorMessage = "";
|
|
this->OutputFile = "";
|
|
std::string tmpOutputFile = "/";
|
|
if (targetType == cmStateEnums::EXECUTABLE) {
|
|
tmpOutputFile += targetName;
|
|
tmpOutputFile +=
|
|
this->Makefile->GetSafeDefinition("CMAKE_EXECUTABLE_SUFFIX");
|
|
} else // if (targetType == cmStateEnums::STATIC_LIBRARY)
|
|
{
|
|
tmpOutputFile +=
|
|
this->Makefile->GetSafeDefinition("CMAKE_STATIC_LIBRARY_PREFIX");
|
|
tmpOutputFile += targetName;
|
|
tmpOutputFile +=
|
|
this->Makefile->GetSafeDefinition("CMAKE_STATIC_LIBRARY_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");
|
|
#if defined(__APPLE__)
|
|
std::string app = "/Debug/" + targetName + ".app";
|
|
searchDirs.push_back(app);
|
|
#endif
|
|
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())) {
|
|
this->OutputFile = cmSystemTools::CollapseFullPath(command);
|
|
return;
|
|
}
|
|
}
|
|
|
|
std::ostringstream emsg;
|
|
emsg << "Unable to find the executable at any of:\n";
|
|
emsg << cmWrap(" " + this->BinaryDirectory, searchDirs, tmpOutputFile, "\n")
|
|
<< "\n";
|
|
this->FindErrorMessage = emsg.str();
|
|
}
|