diff options
Diffstat (limited to 'Source/cmCoreTryCompile.cxx')
| -rw-r--r-- | Source/cmCoreTryCompile.cxx | 382 |
1 files changed, 194 insertions, 188 deletions
diff --git a/Source/cmCoreTryCompile.cxx b/Source/cmCoreTryCompile.cxx index 9f38b25..860417f 100644 --- a/Source/cmCoreTryCompile.cxx +++ b/Source/cmCoreTryCompile.cxx @@ -23,150 +23,144 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv) this->BinaryDirectory = argv[1].c_str(); this->OutputFile = ""; // which signature were we called with ? - this->SrcFileSignature = false; - unsigned int i; + this->SrcFileSignature = true; const char* sourceDirectory = argv[2].c_str(); const char* projectName = 0; const char* targetName = 0; - char targetNameBuf[64]; - int extraArgs = 0; - - // look for CMAKE_FLAGS and store them std::vector<std::string> cmakeFlags; - for (i = 3; i < argv.size(); ++i) - { - if (argv[i] == "CMAKE_FLAGS") - { - // CMAKE_FLAGS is the first argument because we need an argv[0] that - // is not used, so it matches regular command line parsing which has - // the program name as arg 0 - for (; i < argv.size() && argv[i] != "COMPILE_DEFINITIONS" && - argv[i] != "OUTPUT_VARIABLE" && - argv[i] != "LINK_LIBRARIES"; - ++i) - { - extraArgs++; - cmakeFlags.push_back(argv[i]); - } - break; - } - } - - // look for OUTPUT_VARIABLE and store them + std::vector<std::string> compileDefs; std::string outputVariable; - for (i = 3; i < argv.size(); ++i) + std::string copyFile; + std::vector<cmTarget*> targets; + std::string libsToLink = " "; + bool useOldLinkLibs = true; + char targetNameBuf[64]; + bool didOutputVariable = false; + bool didCopyFile = false; + bool useSources = argv[2] == "SOURCES"; + std::vector<std::string> sources; + + enum Doing { DoingNone, DoingCMakeFlags, DoingCompileDefinitions, + DoingLinkLibraries, DoingOutputVariable, DoingCopyFile, + DoingSources }; + Doing doing = useSources? DoingSources : DoingNone; + for(size_t i=3; i < argv.size(); ++i) { - if (argv[i] == "OUTPUT_VARIABLE") + if(argv[i] == "CMAKE_FLAGS") { - if ( argv.size() <= (i+1) ) - { - this->Makefile->IssueMessage(cmake::FATAL_ERROR, - "OUTPUT_VARIABLE specified but there is no variable"); - return -1; - } - extraArgs += 2; - outputVariable = argv[i+1]; - break; + doing = DoingCMakeFlags; + // CMAKE_FLAGS is the first argument because we need an argv[0] that + // is not used, so it matches regular command line parsing which has + // the program name as arg 0 + cmakeFlags.push_back(argv[i]); } - } - - // look for COMPILE_DEFINITIONS and store them - std::vector<std::string> compileFlags; - for (i = 3; i < argv.size(); ++i) - { - if (argv[i] == "COMPILE_DEFINITIONS") + else if(argv[i] == "COMPILE_DEFINITIONS") { - extraArgs++; - for (i = i + 1; i < argv.size() && argv[i] != "CMAKE_FLAGS" && - argv[i] != "OUTPUT_VARIABLE" && - argv[i] != "LINK_LIBRARIES"; - ++i) - { - extraArgs++; - compileFlags.push_back(argv[i]); - } - break; + doing = DoingCompileDefinitions; } - } - - std::vector<cmTarget*> targets; - std::string libsToLink = " "; - bool useOldLinkLibs = true; - for (i = 3; i < argv.size(); ++i) - { - if (argv[i] == "LINK_LIBRARIES") + else if(argv[i] == "LINK_LIBRARIES") { - if ( argv.size() <= (i+1) ) - { - this->Makefile->IssueMessage(cmake::FATAL_ERROR, - "LINK_LIBRARIES specified but there is no content"); - return -1; - } - extraArgs++; - ++i; + doing = DoingLinkLibraries; useOldLinkLibs = false; - for ( ; i < argv.size() && argv[i] != "CMAKE_FLAGS" - && argv[i] != "COMPILE_DEFINITIONS" && argv[i] != "OUTPUT_VARIABLE"; - ++i) + } + else if(argv[i] == "OUTPUT_VARIABLE") + { + doing = DoingOutputVariable; + didOutputVariable = true; + } + else if(argv[i] == "COPY_FILE") + { + doing = DoingCopyFile; + didCopyFile = true; + } + else if(doing == DoingCMakeFlags) + { + cmakeFlags.push_back(argv[i]); + } + else if(doing == DoingCompileDefinitions) + { + compileDefs.push_back(argv[i]); + } + else if(doing == DoingLinkLibraries) + { + libsToLink += "\"" + cmSystemTools::TrimWhitespace(argv[i]) + "\" "; + if(cmTarget *tgt = this->Makefile->FindTargetToUse(argv[i].c_str())) { - extraArgs++; - libsToLink += argv[i] + " "; - cmTarget *tgt = this->Makefile->FindTargetToUse(argv[i].c_str()); - if (!tgt) - { - continue; - } switch(tgt->GetType()) - { - case cmTarget::SHARED_LIBRARY: - case cmTarget::STATIC_LIBRARY: - case cmTarget::UNKNOWN_LIBRARY: - break; - case cmTarget::EXECUTABLE: - if (tgt->IsExecutableWithExports()) - { + { + case cmTarget::SHARED_LIBRARY: + case cmTarget::STATIC_LIBRARY: + case cmTarget::UNKNOWN_LIBRARY: break; - } - default: - this->Makefile->IssueMessage(cmake::FATAL_ERROR, - "Only libraries may be used as try_compile IMPORTED " - "LINK_LIBRARIES. Got " + std::string(tgt->GetName()) + " of " - "type " + tgt->GetTargetTypeName(tgt->GetType()) + "."); - return -1; - } - if (!tgt->IsImported()) + case cmTarget::EXECUTABLE: + if (tgt->IsExecutableWithExports()) + { + break; + } + default: + this->Makefile->IssueMessage(cmake::FATAL_ERROR, + "Only libraries may be used as try_compile IMPORTED " + "LINK_LIBRARIES. Got " + std::string(tgt->GetName()) + " of " + "type " + tgt->GetTargetTypeName(tgt->GetType()) + "."); + return -1; + } + if (tgt->IsImported()) { - continue; + targets.push_back(tgt); } - targets.push_back(tgt); } - break; + } + else if(doing == DoingOutputVariable) + { + outputVariable = argv[i].c_str(); + doing = DoingNone; + } + else if(doing == DoingCopyFile) + { + copyFile = argv[i].c_str(); + doing = DoingNone; + } + else if(doing == DoingSources) + { + sources.push_back(argv[i]); + } + else if(i == 3) + { + this->SrcFileSignature = false; + projectName = argv[i].c_str(); + } + else if(i == 4 && !this->SrcFileSignature) + { + targetName = argv[i].c_str(); + } + else + { + cmOStringStream m; + m << "try_compile given unknown argument \"" << argv[i] << "\"."; + this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, m.str()); } } - // look for COPY_FILE - std::string copyFile; - for (i = 3; i < argv.size(); ++i) + if(didCopyFile && copyFile.empty()) { - if (argv[i] == "COPY_FILE") - { - if ( argv.size() <= (i+1) ) - { - this->Makefile->IssueMessage(cmake::FATAL_ERROR, - "COPY_FILE specified but there is no variable"); - return -1; - } - extraArgs += 2; - copyFile = argv[i+1]; - break; - } + this->Makefile->IssueMessage(cmake::FATAL_ERROR, + "COPY_FILE must be followed by a file path"); + return -1; } - // do we have a srcfile signature - if (argv.size() - extraArgs == 3) + if(didOutputVariable && outputVariable.empty()) { - this->SrcFileSignature = true; + this->Makefile->IssueMessage(cmake::FATAL_ERROR, + "OUTPUT_VARIABLE must be followed by a variable name"); + return -1; + } + + if(useSources && sources.empty()) + { + this->Makefile->IssueMessage(cmake::FATAL_ERROR, + "SOURCES must be followed by at least one source file"); + return -1; } // compute the binary dir when TRY_COMPILE is called with a src file @@ -179,10 +173,10 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv) else { // only valid for srcfile signatures - if (compileFlags.size()) + if (compileDefs.size()) { this->Makefile->IssueMessage(cmake::FATAL_ERROR, - "COMPILE_FLAGS specified on a srcdir type TRY_COMPILE"); + "COMPILE_DEFINITIONS specified on a srcdir type TRY_COMPILE"); return -1; } if (copyFile.size()) @@ -213,6 +207,44 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv) std::string ccFile = this->BinaryDirectory + "/CMakeCache.txt"; cmSystemTools::RemoveFile(ccFile.c_str()); + // Choose sources. + if(!useSources) + { + sources.push_back(argv[2]); + } + + // Detect languages to enable. + cmGlobalGenerator* gg = + this->Makefile->GetCMakeInstance()->GetGlobalGenerator(); + std::set<std::string> testLangs; + for(std::vector<std::string>::iterator si = sources.begin(); + si != sources.end(); ++si) + { + std::string ext = cmSystemTools::GetFilenameLastExtension(*si); + if(const char* lang = gg->GetLanguageFromExtension(ext.c_str())) + { + testLangs.insert(lang); + } + else + { + cmOStringStream err; + err << "Unknown extension \"" << ext << "\" for file\n" + << " " << *si << "\n" + << "try_compile() works only for enabled languages. " + << "Currently these are:\n "; + std::vector<std::string> langs; + gg->GetEnabledLanguages(langs); + for(std::vector<std::string>::iterator l = langs.begin(); + l != langs.end(); ++l) + { + err << " " << *l; + } + err << "\nSee project() command to enable other languages."; + this->Makefile->IssueMessage(cmake::FATAL_ERROR, err.str()); + return -1; + } + } + // we need to create a directory and CMakeLists file etc... // first create the directories sourceDirectory = this->BinaryDirectory.c_str(); @@ -229,10 +261,6 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv) return -1; } - std::string source = argv[2]; - std::string ext = cmSystemTools::GetFilenameLastExtension(source); - const char* lang =(this->Makefile->GetCMakeInstance()->GetGlobalGenerator() - ->GetLanguageFromExtension(ext.c_str())); const char* def = this->Makefile->GetDefinition("CMAKE_MODULE_PATH"); fprintf(fout, "cmake_minimum_required(VERSION %u.%u.%u.%u)\n", cmVersion::GetMajorVersion(), cmVersion::GetMinorVersion(), @@ -242,67 +270,49 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv) fprintf(fout, "SET(CMAKE_MODULE_PATH %s)\n", def); } - const char* rulesOverrideBase = "CMAKE_USER_MAKE_RULES_OVERRIDE"; - std::string rulesOverrideLang = - rulesOverrideBase + (lang ? std::string("_") + lang : std::string("")); - if(const char* rulesOverridePath = - this->Makefile->GetDefinition(rulesOverrideLang.c_str())) - { - 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, rulesOverridePath2); - } - - if(lang) + std::string projectLangs; + for(std::set<std::string>::iterator li = testLangs.begin(); + li != testLangs.end(); ++li) { - fprintf(fout, "PROJECT(CMAKE_TRY_COMPILE %s)\n", lang); - } - else - { - fclose(fout); - cmOStringStream err; - err << "Unknown extension \"" << ext << "\" for file\n" - << " " << source << "\n" - << "try_compile() works only for enabled languages. " - << "Currently these are:\n "; - std::vector<std::string> langs; - this->Makefile->GetCMakeInstance()->GetGlobalGenerator()-> - GetEnabledLanguages(langs); - for(std::vector<std::string>::iterator l = langs.begin(); - l != langs.end(); ++l) + projectLangs += " " + *li; + std::string rulesOverrideBase = "CMAKE_USER_MAKE_RULES_OVERRIDE"; + std::string rulesOverrideLang = rulesOverrideBase + "_" + *li; + if(const char* rulesOverridePath = + this->Makefile->GetDefinition(rulesOverrideLang.c_str())) { - err << " " << *l; + fprintf(fout, "SET(%s \"%s\")\n", + rulesOverrideLang.c_str(), rulesOverridePath); + } + else if(const char* rulesOverridePath2 = + this->Makefile->GetDefinition(rulesOverrideBase.c_str())) + { + fprintf(fout, "SET(%s \"%s\")\n", + rulesOverrideBase.c_str(), rulesOverridePath2); } - err << "\nSee project() command to enable other languages."; - this->Makefile->IssueMessage(cmake::FATAL_ERROR, err.str()); - return -1; } - std::string langFlags = "CMAKE_"; - langFlags += lang; - langFlags += "_FLAGS"; + fprintf(fout, "PROJECT(CMAKE_TRY_COMPILE%s)\n", projectLangs.c_str()); fprintf(fout, "SET(CMAKE_VERBOSE_MAKEFILE 1)\n"); - fprintf(fout, "SET(CMAKE_%s_FLAGS \"", lang); - const char* flags = this->Makefile->GetDefinition(langFlags.c_str()); - if(flags) + for(std::set<std::string>::iterator li = testLangs.begin(); + li != testLangs.end(); ++li) { - fprintf(fout, " %s ", flags); + fprintf(fout, "SET(CMAKE_%s_FLAGS \"", li->c_str()); + std::string langFlags = "CMAKE_" + *li + "_FLAGS"; + if(const char* flags = this->Makefile->GetDefinition(langFlags.c_str())) + { + fprintf(fout, " %s ", flags); + } + fprintf(fout, " ${COMPILE_DEFINITIONS}\")\n"); } - fprintf(fout, " ${COMPILE_DEFINITIONS}\")\n"); fprintf(fout, "INCLUDE_DIRECTORIES(${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 (compileFlags.size()) + if (compileDefs.size()) { fprintf(fout, "ADD_DEFINITIONS( "); - for (i = 0; i < compileFlags.size(); ++i) + for (size_t i = 0; i < compileDefs.size(); ++i) { - fprintf(fout,"%s ",compileFlags[i].c_str()); + fprintf(fout,"%s ",compileDefs[i].c_str()); } fprintf(fout, ")\n"); } @@ -377,7 +387,19 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv) fprintf(fout, "SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY \"%s\")\n", this->BinaryDirectory.c_str()); /* Create the actual executable. */ - fprintf(fout, "ADD_EXECUTABLE(%s \"%s\")\n", targetName, source.c_str()); + fprintf(fout, "ADD_EXECUTABLE(%s", targetName); + 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") == si->npos) + { + this->Makefile->AddCMakeDependFile(*si); + } + } + fprintf(fout, ")\n"); if (useOldLinkLibs) { fprintf(fout, @@ -391,22 +413,6 @@ int cmCoreTryCompile::TryCompileCode(std::vector<std::string> const& argv) } fclose(fout); projectName = "CMAKE_TRY_COMPILE"; - // if the source is not in CMakeTmp - if(source.find("CMakeTmp") == source.npos) - { - this->Makefile->AddCMakeDependFile(source.c_str()); - } - - } - // else the srcdir bindir project target signature - else - { - projectName = argv[3].c_str(); - - if (argv.size() - extraArgs == 5) - { - targetName = argv[4].c_str(); - } } bool erroroc = cmSystemTools::GetErrorOccuredFlag(); |