/*========================================================================= Program: CMake - Cross-Platform Makefile Generator Module: $RCSfile$ Language: C++ Date: $Date$ Version: $Revision$ Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved. See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the above copyright notices for more information. =========================================================================*/ #include "cmTarget.h" #include "cmake.h" #include "cmMakefile.h" #include "cmSourceFile.h" #include "cmLocalGenerator.h" #include "cmGlobalGenerator.h" #include #include #include #include // required for atof const char* cmTarget::TargetTypeNames[] = { "EXECUTABLE", "STATIC_LIBRARY", "SHARED_LIBRARY", "MODULE_LIBRARY", "UTILITY", "GLOBAL_TARGET", "INSTALL_FILES", "INSTALL_PROGRAMS", "INSTALL_DIRECTORY" }; //---------------------------------------------------------------------------- cmTarget::cmTarget() { this->Makefile = 0; this->LinkLibrariesAnalyzed = false; this->LinkDirectoriesComputed = false; this->HaveInstallRule = false; } // define properties void cmTarget::DefineProperties(cmake *cm) { cm->DefineProperty ("BUILD_WITH_INSTALL_RPATH", cmProperty::TARGET, "Should build tree targets have install tree rpaths.", "BUILD_WITH_INSTALL_RPATH is a boolean specifying whether to link " "the target in the build tree with the INSTALL_RPATH. This takes " "precedence over SKIP_BUILD_RPATH and avoids the need for relinking " "before installation."); cm->DefineProperty ("CLEAN_DIRECT_OUTPUT", cmProperty::TARGET, "Do not delete other varients of this target.", "When a library is built CMake by default generates code to remove " "any existing library using all possible names. This is needed " "to support libraries that switch between STATIC and SHARED by " "a user option. However when using OUTPUT_NAME to build a static " "and shared library of the same name using different logical target " "names the two targets will remove each other's files. This can be " "prevented by setting the CLEAN_DIRECT_OUTPUT property to 1."); cm->DefineProperty ("COMPILE_FLAGS", cmProperty::TARGET, "Additional flags to yse when compiling this target's sources.", "The COMPILE_FLAGS property sets additional compiler flags used " "to build sources within the target. It may also be used to pass " "additional preprocessor definitions."); cm->DefineProperty ("DEFINE_SYMBOL", cmProperty::TARGET, "Define a symbol when compiling this target's sources.", "DEFINE_SYMBOL sets the name of the preprocessor symbol defined when " "compiling sources in a shared library. " "If not set here then it is set to target_EXPORTS by default " "(with some substitutions if the target is not a valid C " "identifier). This is useful for headers to know whether they are " "being included from inside their library our outside to properly " "setup dllexport/dllimport decorations. "); cm->DefineProperty ("DEBUG_POSTFIX", cmProperty::TARGET, "A postfix that will be applied to this target when build debug.", "A property on a target that sepcifies a postfix to add to the " "target name when built in debug mode. For example foo.dll " "versus fooD.dll"); cm->DefineProperty ("EchoString", cmProperty::TARGET, "A message to be displayed when the target it built.", "A message to display on some generaters (such as makefiles) when " "the target is built."); cm->DefineProperty ("HAS_CXX", cmProperty::TARGET, "Force a target to use the CXX linker.", "Setting HAS_CXX on a target will force the target to use the " "C++ linker (and C++ runtime libraries) for linking even if the " "target has no C++ code in it."); cm->DefineProperty ("IMPORT_PREFIX", cmProperty::TARGET, "What comes before the import library name.", "Similar to the target property PREFIX, but used for import libraries " "(typically corresponding to a DLL) instead of regular libraries. " "A target property that can be set to override the prefix " "(such as \"lib\") on an import library name."); cm->DefineProperty ("IMPORT_SUFFIX", cmProperty::TARGET, "What comes after the import library name.", "Similar to the target property SUFFIX, but used for import libraries " "(typically corresponding to a DLL) instead of regular libraries. " "A target property that can be set to override the suffix " "(such as \".lib\") on an import library name."); cm->DefineProperty ("IN_ALL", cmProperty::TARGET, "Is this target part of the all target.", "A property on a target that indicates if the target is included as " "part of the default build target. If it is, then with a Makefile " "for example typing make will couse this target to be built as well. " "The same concept applies to the default build of other generators."); cm->DefineProperty ("INSTALL_NAME_DIR", cmProperty::TARGET, "Mac OSX directory name for installed targets.", "INSTALL_NAME_DIR is a string specifying the " "directory portion of the \"install_name\" field of shared libraries " "on Mac OSX to use in the installed targets. "); cm->DefineProperty ("INSTALL_RPATH", cmProperty::TARGET, "The rpath to use for installed targets.", "A semicolon-separated list specifying the rpath " "to use in installed targets (for platforms that support it)."); cm->DefineProperty ("INSTALL_RPATH_USE_LINK_PATH", cmProperty::TARGET, "Add paths to linker search and installed rpath.", "INSTALL_RPATH_USE_LINK_PATH is a boolean that if set to true will " "append directories in the linker search path and outside the " "project to the INSTALL_RPATH. "); cm->DefineProperty ("LINK_FLAGS", cmProperty::TARGET, "Additional flags to use when linking this target.", "The LINK_FLAGS property can be used to add extra flags to the " "link step of a target. LINK_FLAGS_ will add to the " "configuration , " "for example, DEBUG, RELEASE, MINSIZEREL, RELWITHDEBINFO. "); cm->DefineProperty ("LINKER_LANGUAGE", cmProperty::TARGET, "What tool to use for linking, based on language.", "The LINKER_LANGUAGE property is used to change the tool " "used to link an executable or shared library. The default is " "set the language to match the files in the library. CXX and C " "are common values for this property."); cm->DefineProperty ("LOCATION", cmProperty::TARGET, "Where a target will be written on disk.", "A read only property on a target that indicates where that target " "will be written. For libraries and execuatables this will be where " "the file is written on disk. This property is computed based on a " "number of other settings."); cm->DefineProperty ("OUTPUT_NAME", cmProperty::TARGET, "Sets the real name of a target when it is built.", "Sets the real name of a target when it is built and " "can be used to help create two targets of the same name even though " "CMake requires unique logical target names. There is also a " "_OUTPUT_NAME that can set the output name on a " "per-configuration basis."); cm->DefineProperty ("PRE_INSTALL_SCRIPT", cmProperty::TARGET, "Deprecated install support.", "The PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT properties are the " "old way to specify CMake scripts to run before and after " "installing a target. They are used only when the old " "INSTALL_TARGETS command is used to install the target. Use the " "INSTALL command instead."); cm->DefineProperty ("PREFIX", cmProperty::TARGET, "What comes before the library name.", "A target property that can be set to override the prefix " "(such as \"lib\") on a library name."); cm->DefineProperty ("POST_INSTALL_SCRIPT", cmProperty::TARGET, "Deprecated install support.", "The PRE_INSTALL_SCRIPT and POST_INSTALL_SCRIPT properties are the " "old way to specify CMake scripts to run before and after " "installing a target. They are used only when the old " "INSTALL_TARGETS command is used to install the target. Use the " "INSTALL command instead."); cm->DefineProperty ("SKIP_BUILD_RPATH", cmProperty::TARGET, "Should rpaths be used for the build tree.", "SKIP_BUILD_RPATH is a boolean specifying whether to skip automatic " "generation of an rpath allowing the target to run from the " "build tree. "); cm->DefineProperty ("SOVERSION", cmProperty::TARGET, "What version number is this target.", "For shared libraries VERSION and SOVERSION can be used to specify " "the build version and api version respectively. When building or " "installing appropriate symlinks are created if the platform " "supports symlinks and the linker supports so-names. " "If only one of both is specified the missing is assumed to have " "the same version number. " "For shared libraries and executables on Windows the VERSION " "attribute is parsed to extract a \"major.minor\" version number. " "These numbers are used as the image version of the binary. "); cm->DefineProperty ("STATIC_LIBRARY_FLAGS", cmProperty::TARGET, "Extra flags to use when linking static libraries.", "Extra flags to use when linking a static library."); cm->DefineProperty ("SUFFIX", cmProperty::TARGET, "What comes after the library name.", "A target property that can be set to override the suffix " "(such as \".so\") on a library name."); cm->DefineProperty ("VERSION", cmProperty::TARGET, "What version number is this target.", "For shared libraries VERSION and SOVERSION can be used to specify " "the build version and api version respectively. When building or " "installing appropriate symlinks are created if the platform " "supports symlinks and the linker supports so-names. " "If only one of both is specified the missing is assumed to have " "the same version number. " "For executables VERSION can be used to specify the build version. " "When building or installing appropriate symlinks are created if " "the platform supports symlinks. " "For shared libraries and executables on Windows the VERSION " "attribute is parsed to extract a \"major.minor\" version number. " "These numbers are used as the image version of the binary. "); cm->DefineProperty ("WIN32_EXECUTABLE", cmProperty::TARGET, "Used to specify Windows executable with a WinMain entry point.", "This can be set to indicate that a target is a Windows executable " "in contrast to a console application for example. This changes " "how the executable will be linked."); // define some properties without documentation cm->DefineProperty("DEBUG_OUTPUT_NAME", cmProperty::TARGET,0,0); cm->DefineProperty("RELEASE_OUTPUT_NAME", cmProperty::TARGET,0,0); cm->DefineProperty("LINK_FLAGS_DEBUG", cmProperty::TARGET,0,0); } void cmTarget::SetType(TargetType type, const char* name) { this->Name = name; // only add dependency information for library targets this->TargetTypeValue = type; if(this->TargetTypeValue >= STATIC_LIBRARY && this->TargetTypeValue <= MODULE_LIBRARY) { this->RecordDependencies = true; } else { this->RecordDependencies = false; } } //---------------------------------------------------------------------------- void cmTarget::SetMakefile(cmMakefile* mf) { // Set our makefile. this->Makefile = mf; // set the cmake instance of the properties this->Properties.SetCMakeInstance(mf->GetCMakeInstance()); // Setup default property values. this->SetPropertyDefault("INSTALL_NAME_DIR", ""); this->SetPropertyDefault("INSTALL_RPATH", ""); this->SetPropertyDefault("INSTALL_RPATH_USE_LINK_PATH", "OFF"); this->SetPropertyDefault("SKIP_BUILD_RPATH", "OFF"); this->SetPropertyDefault("BUILD_WITH_INSTALL_RPATH", "OFF"); // Collect the set of configuration types. std::vector configNames; if(const char* configurationTypes = mf->GetDefinition("CMAKE_CONFIGURATION_TYPES")) { cmSystemTools::ExpandListArgument(configurationTypes, configNames); } else if(const char* buildType = mf->GetDefinition("CMAKE_BUILD_TYPE")) { if(*buildType) { configNames.push_back(buildType); } } // Setup per-configuration property default values. for(std::vector::iterator ci = configNames.begin(); ci != configNames.end(); ++ci) { // Initialize per-configuration name postfix property from the // variable only for non-executable targets. This preserves // compatibility with previous CMake versions in which executables // did not support this variable. Projects may still specify the // property directly. TODO: Make this depend on backwards // compatibility setting. if(this->TargetTypeValue != cmTarget::EXECUTABLE) { std::string property = cmSystemTools::UpperCase(*ci); property += "_POSTFIX"; this->SetPropertyDefault(property.c_str(), 0); } } } void cmTarget::TraceVSDependencies(std::string projFile, cmMakefile *makefile) { // get the classes from the source lists then add them to the groups std::vector & classes = this->GetSourceFiles(); // use a deck to keep track of processed source files std::queue srcFilesToProcess; std::set srcFilesQueued; std::string name; std::vector newClasses; for(std::vector::const_iterator i = classes.begin(); i != classes.end(); ++i) { name = (*i)->GetSourceName(); if ((*i)->GetSourceExtension() != "rule") { name += "."; name += (*i)->GetSourceExtension(); } srcFilesToProcess.push(name); srcFilesQueued.insert(name); // does this sourcefile have object depends on it? // If so then add them as well const char* additionalDeps = (*i)->GetProperty("OBJECT_DEPENDS"); std::vector depends = (*i)->GetDepends(); if (additionalDeps || depends.size()) { if(additionalDeps) { cmSystemTools::ExpandListArgument(additionalDeps, depends); } for(std::vector::iterator id = depends.begin(); id != depends.end(); ++id) { // if there is a custom rule to generate that dependency // then add it to the list cmSourceFile* outsf = makefile->GetSourceFileWithOutput(id->c_str()); // if a source file was found then add it if (outsf && (std::find(classes.begin(),classes.end(),outsf) == classes.end()) && (std::find(newClasses.begin(),newClasses.end(),outsf) == newClasses.end())) { // then add the source to this target and add it to the queue newClasses.push_back(outsf); name = outsf->GetSourceName(); if (outsf->GetSourceExtension() != "rule") { name += "."; name += outsf->GetSourceExtension(); } std::string temp = cmSystemTools::GetFilenamePath(outsf->GetFullPath()); temp += "/"; temp += name; // if it hasn't been processed if (srcFilesQueued.find(temp) == srcFilesQueued.end()) { srcFilesToProcess.push(temp); srcFilesQueued.insert(temp); } } } } } for(std::vector::const_iterator i = newClasses.begin(); i != newClasses.end(); ++i) { classes.push_back(*i); } // add in the project file itself if (projFile.size()) { srcFilesToProcess.push(projFile); srcFilesQueued.insert(projFile); } // add in the library depends for custom targets if (this->GetType() == cmTarget::UTILITY || this->GetType() == cmTarget::GLOBAL_TARGET) { for (std::vector::iterator ic = this->GetPostBuildCommands().begin(); ic != this->GetPostBuildCommands().end(); ++ic) { cmCustomCommand &c = *ic; for (std::vector::const_iterator i = c.GetDepends().begin(); i != c.GetDepends().end(); ++i) { srcFilesToProcess.push(*i); srcFilesQueued.insert(*i); } } } while (!srcFilesToProcess.empty()) { // is this source the output of a custom command cmSourceFile* outsf = makefile->GetSourceFileWithOutput(srcFilesToProcess.front().c_str()); if (outsf) { // is it not already in the target? if (std::find(classes.begin(),classes.end(),outsf) == classes.end()) { // then add the source to this target and add it to the queue classes.push_back(outsf); name = outsf->GetSourceName(); if (outsf->GetSourceExtension() != "rule") { name += "."; name += outsf->GetSourceExtension(); } std::string temp = cmSystemTools::GetFilenamePath(outsf->GetFullPath()); temp += "/"; temp += name; // if it hasn't been processed if (srcFilesQueued.find(temp) == srcFilesQueued.end()) { srcFilesToProcess.push(temp); srcFilesQueued.insert(temp); } } // add its dependencies to the list to check unsigned int i; for (i = 0; i < outsf->GetCustomCommand()->GetDepends().size(); ++i) { const std::string& fullName = outsf->GetCustomCommand()->GetDepends()[i]; std::string dep = cmSystemTools::GetFilenameName(fullName); if (cmSystemTools::GetFilenameLastExtension(dep) == ".exe") { dep = cmSystemTools::GetFilenameWithoutLastExtension(dep); } bool isUtility = false; // see if we can find a target with this name cmTarget* t = this->Makefile->GetLocalGenerator()-> GetGlobalGenerator()->FindTarget(0, dep.c_str()); if(t) { // if we find the target and the dep was given as a full // path, then make sure it was not a full path to something // else, and the fact that the name matched a target was // just a coincident if(cmSystemTools::FileIsFullPath(fullName.c_str())) { std::string tLocation = t->GetLocation(0); tLocation = cmSystemTools::GetFilenamePath(tLocation); std::string depLocation = cmSystemTools::GetFilenamePath( std::string(fullName)); depLocation = cmSystemTools::CollapseFullPath(depLocation.c_str()); tLocation = cmSystemTools::CollapseFullPath(tLocation.c_str()); if(depLocation == tLocation) { isUtility = true; } } // if it was not a full path then it must be a target else { isUtility = true; } } if(isUtility) { // add the depend as a utility on the target this->AddUtility(dep.c_str()); } else { if (srcFilesQueued.find(outsf->GetCustomCommand()->GetDepends()[i]) == srcFilesQueued.end()) { srcFilesToProcess.push (outsf->GetCustomCommand()->GetDepends()[i]); srcFilesQueued.insert(outsf->GetCustomCommand()->GetDepends()[i]); } } } } // finished with this SF move to the next srcFilesToProcess.pop(); } // mark all custom commands in the targets list of source files as used. for(std::vector::iterator i = this->SourceFiles.begin(); i != this->SourceFiles.end(); ++i) { cmCustomCommand* cc = (*i)->GetCustomCommand(); if(cc) { cc->SetUsed(); } } } void cmTarget::GenerateSourceFilesFromSourceLists( cmMakefile &mf) { // this is only done for non install targets if ((this->TargetTypeValue == cmTarget::INSTALL_FILES) || (this->TargetTypeValue == cmTarget::INSTALL_PROGRAMS)) { return; } // for each src lists add the classes for (std::vector::const_iterator s = this->SourceLists.begin(); s != this->SourceLists.end(); ++s) { int done = 0; // replace any variables std::string temps = *s; mf.ExpandVariablesInString(temps); // Next if one wasn't found then assume it is a single class // check to see if it is an existing source file if (!done) { cmSourceFile* sourceFile = mf.GetSource(temps.c_str()); if ( sourceFile ) { this->SourceFiles.push_back(sourceFile); done = 1; } } // if we still are not done, try to create the SourceFile structure if (!done) { cmSourceFile file; file.GetProperties(). SetCMakeInstance(this->Makefile->GetCMakeInstance()); file.SetProperty("ABSTRACT","0"); file.SetName(temps.c_str(), mf.GetCurrentDirectory(), mf.GetSourceExtensions(), mf.GetHeaderExtensions(), this->Name.c_str()); this->SourceFiles.push_back(mf.AddSource(file)); } } // expand any link library variables whle we are at it LinkLibraryVectorType::iterator p = this->LinkLibraries.begin(); for (;p != this->LinkLibraries.end(); ++p) { mf.ExpandVariablesInString(p->first, true, true); } } void cmTarget::MergeLinkLibraries( cmMakefile& mf, const char *selfname, const LinkLibraryVectorType& libs ) { // Only add on libraries we haven't added on before. // Assumption: the global link libraries could only grow, never shrink LinkLibraryVectorType::const_iterator i = libs.begin(); i += this->PrevLinkedLibraries.size(); for( ; i != libs.end(); ++i ) { // We call this so that the dependencies get written to the cache this->AddLinkLibrary( mf, selfname, i->first.c_str(), i->second ); } this->PrevLinkedLibraries = libs; } //---------------------------------------------------------------------------- void cmTarget::AddLinkDirectory(const char* d) { // Make sure we don't add unnecessary search directories. if(std::find(this->ExplicitLinkDirectories.begin(), this->ExplicitLinkDirectories.end(), d) == this->ExplicitLinkDirectories.end() ) { this->ExplicitLinkDirectories.push_back( d ); this->LinkDirectoriesComputed = false; } } //---------------------------------------------------------------------------- const std::vector& cmTarget::GetLinkDirectories() { // Make sure all library dependencies have been analyzed. if(!this->LinkLibrariesAnalyzed && !this->LinkLibraries.empty()) { cmSystemTools::Error( "cmTarget::GetLinkDirectories called before " "cmTarget::AnalyzeLibDependencies on target ", this->Name.c_str()); } // Make sure the complete set of link directories has been computed. if(!this->LinkDirectoriesComputed) { // Compute the full set of link directories including the // locations of targets that have been linked in. Start with the // link directories given explicitly. this->LinkDirectories = this->ExplicitLinkDirectories; for(LinkLibraryVectorType::iterator ll = this->LinkLibraries.begin(); ll != this->LinkLibraries.end(); ++ll) { // If this library is a CMake target then add its location as a // link directory. std::string lib = ll->first; cmTarget* tgt = 0; if(this->Makefile && this->Makefile->GetLocalGenerator() && this->Makefile->GetLocalGenerator()->GetGlobalGenerator()) { tgt = (this->Makefile->GetLocalGenerator()->GetGlobalGenerator() ->FindTarget(0, lib.c_str())); } if(tgt) { // Add the directory only if it is not already present. This // is an N^2 algorithm for adding the directories, but N // should not get very big. const char* libpath = tgt->GetDirectory(); if(std::find(this->LinkDirectories.begin(), this->LinkDirectories.end(), libpath) == this->LinkDirectories.end()) { this->LinkDirectories.push_back(libpath); } } } // The complete set of link directories has now been computed. this->LinkDirectoriesComputed = true; } // Return the complete set of link directories. return this->LinkDirectories; } void cmTarget::ClearDependencyInformation( cmMakefile& mf, const char* target ) { // Clear the dependencies. The cache variable must exist iff we are // recording dependency information for this target. std::string depname = target; depname += "_LIB_DEPENDS"; if (this->RecordDependencies) { mf.AddCacheDefinition(depname.c_str(), "", "Dependencies for target", cmCacheManager::STATIC); } else { if (mf.GetDefinition( depname.c_str() )) { std::string message = "Target "; message += target; message += " has dependency information when it shouldn't.\n"; message += "Your cache is probably stale. Please remove the entry\n "; message += depname; message += "\nfrom the cache."; cmSystemTools::Error( message.c_str() ); } } } void cmTarget::AddLinkLibrary(const std::string& lib, LinkLibraryType llt) { this->AddFramework(lib.c_str(), llt); cmTarget::LibraryID tmp; tmp.first = lib; tmp.second = llt; this->LinkLibraries.push_back(tmp); } bool cmTarget::AddFramework(const std::string& libname, LinkLibraryType llt) { (void)llt; // TODO: What is this? if(cmSystemTools::IsPathToFramework(libname.c_str())) { std::string frameworkDir = libname; frameworkDir += "/../"; frameworkDir = cmSystemTools::CollapseFullPath(frameworkDir.c_str()); std::vector::iterator i = std::find(this->Frameworks.begin(), this->Frameworks.end(), frameworkDir); if(i == this->Frameworks.end()) { this->Frameworks.push_back(frameworkDir); } return true; } return false; } void cmTarget::AddLinkLibrary(cmMakefile& mf, const char *target, const char* lib, LinkLibraryType llt) { // Never add a self dependency, even if the user asks for it. if(strcmp( target, lib ) == 0) { return; } this->AddFramework(lib, llt); cmTarget::LibraryID tmp; tmp.first = lib; tmp.second = llt; this->LinkLibraries.push_back( tmp ); // Add the explicit dependency information for this target. This is // simply a set of libraries separated by ";". There should always // be a trailing ";". These library names are not canonical, in that // they may be "-framework x", "-ly", "/path/libz.a", etc. // We shouldn't remove duplicates here because external libraries // may be purposefully duplicated to handle recursive dependencies, // and we removing one instance will break the link line. Duplicates // will be appropriately eliminated at emit time. if(this->RecordDependencies) { std::string targetEntry = target; targetEntry += "_LIB_DEPENDS"; std::string dependencies; const char* old_val = mf.GetDefinition( targetEntry.c_str() ); if( old_val ) { dependencies += old_val; } switch (llt) { case cmTarget::GENERAL: dependencies += "general"; break; case cmTarget::DEBUG: dependencies += "debug"; break; case cmTarget::OPTIMIZED: dependencies += "optimized"; break; } dependencies += ";"; dependencies += lib; dependencies += ";"; mf.AddCacheDefinition( targetEntry.c_str(), dependencies.c_str(), "Dependencies for the target", cmCacheManager::STATIC ); } } void cmTarget::AnalyzeLibDependencies( const cmMakefile& mf ) { // There are two key parts of the dependency analysis: (1) // determining the libraries in the link line, and (2) constructing // the dependency graph for those libraries. // // The latter is done using the cache entries that record the // dependencies of each library. // // The former is a more thorny issue, since it is not clear how to // determine if two libraries listed on the link line refer to the a // single library or not. For example, consider the link "libraries" // /usr/lib/libtiff.so -ltiff // Is this one library or two? The solution implemented here is the // simplest (and probably the only practical) one: two libraries are // the same if their "link strings" are identical. Thus, the two // libraries above are considered distinct. This also means that for // dependency analysis to be effective, the CMake user must specify // libraries build by his project without using any linker flags or // file extensions. That is, // LINK_LIBRARIES( One Two ) // instead of // LINK_LIBRARIES( -lOne ${binarypath}/libTwo.a ) // The former is probably what most users would do, but it never // hurts to document the assumptions. :-) Therefore, in the analysis // code, the "canonical name" of a library is simply its name as // given to a LINK_LIBRARIES command. // // Also, we will leave the original link line intact; we will just add any // dependencies that were missing. // // There is a problem with recursive external libraries // (i.e. libraries with no dependency information that are // recursively dependent). We must make sure that the we emit one of // the libraries twice to satisfy the recursion, but we shouldn't // emit it more times than necessary. In particular, we must make // sure that handling this improbable case doesn't cost us when // dealing with the common case of non-recursive libraries. The // solution is to assume that the recursion is satisfied at one node // of the dependency tree. To illustrate, assume libA and libB are // extrenal and mutually dependent. Suppose libX depends on // libA, and libY on libA and libX. Then // TARGET_LINK_LIBRARIES( Y X A B A ) // TARGET_LINK_LIBRARIES( X A B A ) // TARGET_LINK_LIBRARIES( Exec Y ) // would result in "-lY -lX -lA -lB -lA". This is the correct way to // specify the dependencies, since the mutual dependency of A and B // is resolved *every time libA is specified*. // // Something like // TARGET_LINK_LIBRARIES( Y X A B A ) // TARGET_LINK_LIBRARIES( X A B ) // TARGET_LINK_LIBRARIES( Exec Y ) // would result in "-lY -lX -lA -lB", and the mutual dependency // information is lost. This is because in some case (Y), the mutual // dependency of A and B is listed, while in another other case (X), // it is not. Depending on which line actually emits A, the mutual // dependency may or may not be on the final link line. We can't // handle this pathalogical case cleanly without emitting extra // libraries for the normal cases. Besides, the dependency // information for X is wrong anyway: if we build an executable // depending on X alone, we would not have the mutual dependency on // A and B resolved. // // IMPROVEMENTS: // -- The current algorithm will not always pick the "optimal" link line // when recursive dependencies are present. It will instead break the // cycles at an aribtrary point. The majority of projects won't have // cyclic dependencies, so this is probably not a big deal. Note that // the link line is always correct, just not necessary optimal. typedef std::vector< std::string > LinkLine; // The dependency map. DependencyMap dep_map; if ( this->OriginalLinkLibraries.size() == 0 ) { this->OriginalLinkLibraries = this->LinkLibraries; } // 1. Build the dependency graph // for(LinkLibraryVectorType::reverse_iterator lib = this->LinkLibraries.rbegin(); lib != this->LinkLibraries.rend(); ++lib) { this->GatherDependencies( mf, *lib, dep_map); } // 2. Remove any dependencies that are already satisfied in the original // link line. // for(LinkLibraryVectorType::iterator lib = this->LinkLibraries.begin(); lib != this->LinkLibraries.end(); ++lib) { for( LinkLibraryVectorType::iterator lib2 = lib; lib2 != this->LinkLibraries.end(); ++lib2) { this->DeleteDependency( dep_map, *lib, *lib2); } } // 3. Create the new link line by simply emitting any dependencies that are // missing. Start from the back and keep adding. // std::set done, visited; std::vector newLinkLibraries; for(LinkLibraryVectorType::reverse_iterator lib = this->LinkLibraries.rbegin(); lib != this->LinkLibraries.rend(); ++lib) { // skip zero size library entries, this may happen // if a variable expands to nothing. if (lib->first.size() != 0) { this->Emit( *lib, dep_map, done, visited, newLinkLibraries ); } } // 4. Add the new libraries to the link line. // for( std::vector::reverse_iterator k = newLinkLibraries.rbegin(); k != newLinkLibraries.rend(); ++k ) { // get the llt from the dep_map this->LinkLibraries.push_back( std::make_pair(k->first,k->second) ); } this->LinkLibrariesAnalyzed = true; } void cmTarget::InsertDependency( DependencyMap& depMap, const LibraryID& lib, const LibraryID& dep) { depMap[lib].push_back(dep); } void cmTarget::DeleteDependency( DependencyMap& depMap, const LibraryID& lib, const LibraryID& dep) { // Make sure there is an entry in the map for lib. If so, delete all // dependencies to dep. There may be repeated entries because of // external libraries that are specified multiple times. DependencyMap::iterator map_itr = depMap.find( lib ); if( map_itr != depMap.end() ) { DependencyList& depList = map_itr->second; DependencyList::iterator itr; while( (itr = std::find(depList.begin(), depList.end(), dep)) != depList.end() ) { depList.erase( itr ); } } } void cmTarget::Emit(const LibraryID lib, const DependencyMap& dep_map, std::set& emitted, std::set& visited, DependencyList& link_line ) { // It's already been emitted if( emitted.find(lib) != emitted.end() ) { return; } // Emit the dependencies only if this library node hasn't been // visited before. If it has, then we have a cycle. The recursion // that got us here should take care of everything. if( visited.insert(lib).second ) { if( dep_map.find(lib) != dep_map.end() ) // does it have dependencies? { const DependencyList& dep_on = dep_map.find( lib )->second; DependencyList::const_reverse_iterator i; // To cater for recursive external libraries, we must emit // duplicates on this link line *unless* they were emitted by // some other node, in which case we assume that the recursion // was resolved then. We making the simplifying assumption that // any duplicates on a single link line are on purpose, and must // be preserved. // This variable will keep track of the libraries that were // emitted directory from the current node, and not from a // recursive call. This way, if we come across a library that // has already been emitted, we repeat it iff it has been // emitted here. std::set emitted_here; for( i = dep_on.rbegin(); i != dep_on.rend(); ++i ) { if( emitted_here.find(*i) != emitted_here.end() ) { // a repeat. Must emit. emitted.insert(*i); link_line.push_back( *i ); } else { // Emit only if no-one else has if( emitted.find(*i) == emitted.end() ) { // emit dependencies Emit( *i, dep_map, emitted, visited, link_line ); // emit self emitted.insert(*i); emitted_here.insert(*i); link_line.push_back( *i ); } } } } } } void cmTarget::GatherDependencies( const cmMakefile& mf, const LibraryID& lib, DependencyMap& dep_map) { // If the library is already in the dependency map, then it has // already been fully processed. if( dep_map.find(lib) != dep_map.end() ) { return; } const char* deps = mf.GetDefinition( (lib.first+"_LIB_DEPENDS").c_str() ); if( deps && strcmp(deps,"") != 0 ) { // Make sure this library is in the map, even if it has an empty // set of dependencies. This distinguishes the case of explicitly // no dependencies with that of unspecified dependencies. dep_map[lib]; // Parse the dependency information, which is a set of // type, library pairs separated by ";". There is always a trailing ";". cmTarget::LinkLibraryType llt = cmTarget::GENERAL; std::string depline = deps; std::string::size_type start = 0; std::string::size_type end; end = depline.find( ";", start ); while( end != std::string::npos ) { std::string l = depline.substr( start, end-start ); if( l.size() != 0 ) { if (l == "debug") { llt = cmTarget::DEBUG; } else if (l == "optimized") { llt = cmTarget::OPTIMIZED; } else if (l == "general") { llt = cmTarget::GENERAL; } else { LibraryID lib2(l,llt); this->InsertDependency( dep_map, lib, lib2); this->GatherDependencies( mf, lib2, dep_map); llt = cmTarget::GENERAL; } } start = end+1; // skip the ; end = depline.find( ";", start ); } // cannot depend on itself this->DeleteDependency( dep_map, lib, lib); } } void cmTarget::SetProperty(const char* prop, const char* value) { if (!prop) { return; } if (!value) { value = "NOTFOUND"; } this->Properties.SetProperty(prop, value, cmProperty::TARGET); } const char* cmTarget::GetDirectory(const char* config) { switch( this->GetType() ) { case cmTarget::STATIC_LIBRARY: case cmTarget::MODULE_LIBRARY: case cmTarget::SHARED_LIBRARY: this->Directory = this->Makefile->GetSafeDefinition("LIBRARY_OUTPUT_PATH"); break; case cmTarget::EXECUTABLE: this->Directory = this->Makefile->GetSafeDefinition("EXECUTABLE_OUTPUT_PATH"); break; default: this->Directory = this->Makefile->GetStartOutputDirectory(); break; } if(this->Directory.empty()) { this->Directory = this->Makefile->GetStartOutputDirectory(); } // if LIBRARY_OUTPUT_PATH or EXECUTABLE_OUTPUT_PATH was relative // then make them full paths because this directory MUST // be a full path or things will not work!!! if(!cmSystemTools::FileIsFullPath(this->Directory.c_str())) { this->Directory = this->Makefile->GetCurrentOutputDirectory() + std::string("/") + this->Directory; } if(config) { // Add the configuration's subdirectory. this->Makefile->GetLocalGenerator()->GetGlobalGenerator()-> AppendDirectoryForConfig("/", config, "", this->Directory); } return this->Directory.c_str(); } const char* cmTarget::GetLocation(const char* config) { this->Location = this->GetDirectory(); if(!this->Location.empty()) { this->Location += "/"; } const char* cfgid = this->Makefile->GetDefinition("CMAKE_CFG_INTDIR"); if(cfgid && strcmp(cfgid, ".") != 0) { this->Location += cfgid; this->Location += "/"; } this->Location += this->GetFullName(config, false); return this->Location.c_str(); } //---------------------------------------------------------------------------- void cmTarget::GetTargetVersion(int& major, int& minor) { // Set the default values. major = 0; minor = 0; // Look for a VERSION property. if(const char* version = this->GetProperty("VERSION")) { // Try to parse the version number and store the results that were // successfully parsed. int parsed_major; int parsed_minor; switch(sscanf(version, "%d.%d", &parsed_major, &parsed_minor)) { case 2: minor = parsed_minor; // no break! case 1: major = parsed_major; // no break! default: break; } } } const char *cmTarget::GetProperty(const char* prop) { return this->GetProperty(prop, cmProperty::TARGET); } const char *cmTarget::GetProperty(const char* prop, cmProperty::ScopeType scope) { // watch for special "computed" properties that are dependent on other // properties or variables, always recompute them if (!strcmp(prop,"LOCATION")) { // Set the LOCATION property of the target. Note that this cannot take // into account the per-configuration name of the target because the // configuration type may not be known at CMake time. We should // deprecate this feature and instead support transforming an executable // target name given as the command part of custom commands into the // proper path at build time. Alternatively we could put environment // variable settings in all custom commands that hold the name of the // target for each configuration and then give a reference to the // variable in the location. this->SetProperty("LOCATION", this->GetLocation(0)); } // Per-configuration location can be computed. int len = static_cast(strlen(prop)); if(len > 9 && strcmp(prop+len-9, "_LOCATION") == 0) { std::string configName(prop, len-9); this->SetProperty(prop, this->GetLocation(configName.c_str())); } // the type property returns what type the target is if (!strcmp(prop,"TYPE")) { switch( this->GetType() ) { case cmTarget::STATIC_LIBRARY: return "STATIC_LIBRARY"; // break; /* unreachable */ case cmTarget::MODULE_LIBRARY: return "MODULE_LIBRARY"; // break; /* unreachable */ case cmTarget::SHARED_LIBRARY: return "SHARED_LIBRARY"; // break; /* unreachable */ case cmTarget::EXECUTABLE: return "EXECUTABLE"; // break; /* unreachable */ case cmTarget::UTILITY: return "UTILITY"; // break; /* unreachable */ case cmTarget::GLOBAL_TARGET: return "GLOBAL_TARGET"; // break; /* unreachable */ case cmTarget::INSTALL_FILES: return "INSTALL_FILES"; // break; /* unreachable */ case cmTarget::INSTALL_PROGRAMS: return "INSTALL_PROGRAMS"; // break; /* unreachable */ case cmTarget::INSTALL_DIRECTORY: return "INSTALL_DIRECTORY"; // break; /* unreachable */ } return 0; } bool chain = false; const char *retVal = this->Properties.GetPropertyValue(prop, scope, chain); if (chain) { return this->Makefile->GetProperty(prop,scope); } return retVal; } bool cmTarget::GetPropertyAsBool(const char* prop) { return cmSystemTools::IsOn(this->GetProperty(prop)); } const char* cmTarget::GetLinkerLanguage(cmGlobalGenerator* gg) { if(this->GetProperty("HAS_CXX")) { const_cast(this)->SetProperty("LINKER_LANGUAGE", "CXX"); } const char* linkerLang = this->GetProperty("LINKER_LANGUAGE"); if(linkerLang) { return linkerLang; } std::set languages; for(std::vector::const_iterator i = this->SourceFiles.begin(); i != this->SourceFiles.end(); ++i) { const char* lang = gg->GetLanguageFromExtension((*i)->GetSourceExtension().c_str()); if(lang) { languages.insert(lang); } } if(languages.size() == 0) { return 0; } if(languages.size() == 1) { const_cast(this)->SetProperty("LINKER_LANGUAGE", languages.begin()->c_str()); return this->GetProperty("LINKER_LANGUAGE"); } const char* prefLang = 0; for(std::set::const_iterator s = languages.begin(); s != languages.end(); ++s) { const char* lpref = gg->GetLinkerPreference(s->c_str()); if(lpref[0] == 'P') { if(prefLang && !(*s == prefLang)) { std::string m = "Error Target: "; m += this->Name + " Contains more than one Prefered language: "; m += *s; m += " and "; m += prefLang; m += "\nYou must set the LINKER_LANGUAGE property for this target."; cmSystemTools::Error(m.c_str()); } else { prefLang = s->c_str(); } } } if(!prefLang) { prefLang = languages.begin()->c_str(); } const_cast(this)->SetProperty("LINKER_LANGUAGE", prefLang); return this->GetProperty("LINKER_LANGUAGE"); } const char* cmTarget::GetCreateRuleVariable() { switch(this->GetType()) { case cmTarget::STATIC_LIBRARY: return "_CREATE_STATIC_LIBRARY"; case cmTarget::SHARED_LIBRARY: return "_CREATE_SHARED_LIBRARY"; case cmTarget::MODULE_LIBRARY: return "_CREATE_SHARED_MODULE"; case cmTarget::EXECUTABLE: return "_LINK_EXECUTABLE"; case cmTarget::UTILITY: case cmTarget::GLOBAL_TARGET: case cmTarget::INSTALL_FILES: case cmTarget::INSTALL_PROGRAMS: case cmTarget::INSTALL_DIRECTORY: break; } return ""; } const char* cmTarget::GetSuffixVariableInternal(TargetType type, bool implib) { switch(type) { case cmTarget::STATIC_LIBRARY: return "CMAKE_STATIC_LIBRARY_SUFFIX"; case cmTarget::SHARED_LIBRARY: return (implib ? "CMAKE_IMPORT_LIBRARY_SUFFIX" : "CMAKE_SHARED_LIBRARY_SUFFIX"); case cmTarget::MODULE_LIBRARY: return "CMAKE_SHARED_MODULE_SUFFIX"; case cmTarget::EXECUTABLE: return "CMAKE_EXECUTABLE_SUFFIX"; case cmTarget::UTILITY: case cmTarget::GLOBAL_TARGET: case cmTarget::INSTALL_FILES: case cmTarget::INSTALL_PROGRAMS: case cmTarget::INSTALL_DIRECTORY: break; } return ""; } const char* cmTarget::GetPrefixVariableInternal(TargetType type, bool implib) { switch(type) { case cmTarget::STATIC_LIBRARY: return "CMAKE_STATIC_LIBRARY_PREFIX"; case cmTarget::SHARED_LIBRARY: return (implib ? "CMAKE_IMPORT_LIBRARY_PREFIX" : "CMAKE_SHARED_LIBRARY_PREFIX"); case cmTarget::MODULE_LIBRARY: return "CMAKE_SHARED_MODULE_PREFIX"; case cmTarget::EXECUTABLE: case cmTarget::UTILITY: case cmTarget::GLOBAL_TARGET: case cmTarget::INSTALL_FILES: case cmTarget::INSTALL_PROGRAMS: case cmTarget::INSTALL_DIRECTORY: break; } return ""; } //---------------------------------------------------------------------------- std::string cmTarget::GetFullName(const char* config, bool implib) { return this->GetFullNameInternal(this->GetType(), config, implib); } //---------------------------------------------------------------------------- void cmTarget::GetFullName(std::string& prefix, std::string& base, std::string& suffix, const char* config, bool implib) { this->GetFullNameInternal(this->GetType(), config, implib, prefix, base, suffix); } //---------------------------------------------------------------------------- std::string cmTarget::GetFullPath(const char* config, bool implib) { // Start with the output directory for the target. std::string fpath = this->GetDirectory(config); fpath += "/"; // Add the full name of the target. fpath += this->GetFullName(config, implib); return fpath; } //---------------------------------------------------------------------------- std::string cmTarget::GetFullNameInternal(TargetType type, const char* config, bool implib) { std::string prefix; std::string base; std::string suffix; this->GetFullNameInternal(type, config, implib, prefix, base, suffix); return prefix+base+suffix; } //---------------------------------------------------------------------------- void cmTarget::GetFullNameInternal(TargetType type, const char* config, bool implib, std::string& outPrefix, std::string& outBase, std::string& outSuffix) { // Use just the target name for non-main target types. if(type != cmTarget::STATIC_LIBRARY && type != cmTarget::SHARED_LIBRARY && type != cmTarget::MODULE_LIBRARY && type != cmTarget::EXECUTABLE) { outPrefix = ""; outBase = this->GetName(); outSuffix = ""; return; } // Return an empty name for the import library if this platform // does not support import libraries. if(implib && !this->Makefile->GetDefinition("CMAKE_IMPORT_LIBRARY_SUFFIX")) { outPrefix = ""; outBase = ""; outSuffix = ""; return; } // The implib option is only allowed for shared libraries. if(type != cmTarget::SHARED_LIBRARY) { implib = false; } // Compute the full name for main target types. const char* targetPrefix = (implib ? this->GetProperty("IMPORT_PREFIX") : this->GetProperty("PREFIX")); const char* targetSuffix = (implib ? this->GetProperty("IMPORT_SUFFIX") : this->GetProperty("SUFFIX")); const char* configPostfix = 0; if(config && *config) { std::string configProp = cmSystemTools::UpperCase(config); configProp += "_POSTFIX"; configPostfix = this->GetProperty(configProp.c_str()); } const char* prefixVar = this->GetPrefixVariableInternal(type, implib); const char* suffixVar = this->GetSuffixVariableInternal(type, implib); const char* ll = this->GetLinkerLanguage( this->Makefile->GetLocalGenerator()->GetGlobalGenerator()); // first try language specific suffix if(ll) { if(!targetSuffix && suffixVar && *suffixVar) { std::string langSuff = suffixVar + std::string("_") + ll; targetSuffix = this->Makefile->GetDefinition(langSuff.c_str()); } if(!targetPrefix && prefixVar && *prefixVar) { std::string langPrefix = prefixVar + std::string("_") + ll; targetPrefix = this->Makefile->GetDefinition(langPrefix.c_str()); } } // if there is no prefix on the target use the cmake definition if(!targetPrefix && prefixVar) { targetPrefix = this->Makefile->GetSafeDefinition(prefixVar); } // if there is no suffix on the target use the cmake definition if(!targetSuffix && suffixVar) { targetSuffix = this->Makefile->GetSafeDefinition(suffixVar); } // Begin the final name with the prefix. outPrefix = targetPrefix?targetPrefix:""; // Append the target name or property-specified name. const char* outName = 0; if(config && *config) { std::string configProp = cmSystemTools::UpperCase(config); configProp += "_OUTPUT_NAME"; outName = this->GetProperty(configProp.c_str()); } if(!outName) { outName = this->GetProperty("OUTPUT_NAME"); } if(outName) { outBase = outName; } else { outBase = this->GetName(); } // Append the per-configuration postfix. outBase += configPostfix?configPostfix:""; // Name shared libraries with their version number on some platforms. if(const char* version = this->GetProperty("VERSION")) { if(type == cmTarget::SHARED_LIBRARY && !implib && this->Makefile->IsOn("CMAKE_SHARED_LIBRARY_NAME_WITH_VERSION")) { outBase += "-"; outBase += version; } } // Append the suffix. outSuffix = targetSuffix?targetSuffix:""; } void cmTarget::GetLibraryNames(std::string& name, std::string& soName, std::string& realName, std::string& impName, std::string& pdbName, const char* config) { // Get the names based on the real type of the library. this->GetLibraryNamesInternal(name, soName, realName, impName, pdbName, this->GetType(), config); } void cmTarget::GetLibraryCleanNames(std::string& staticName, std::string& sharedName, std::string& sharedSOName, std::string& sharedRealName, std::string& importName, std::string& pdbName, const char* config) { // Get the name as if this were a static library. std::string soName; std::string realName; std::string impName; this->GetLibraryNamesInternal(staticName, soName, realName, impName, pdbName, cmTarget::STATIC_LIBRARY, config); // Get the names as if this were a shared library. if(this->GetType() == cmTarget::STATIC_LIBRARY) { // Since the real type is static then the user either specified // STATIC or did not specify a type. In the former case the // shared library will never be present. In the latter case the // type will never be MODULE. Either way the only names that // might have to be cleaned are the shared library names. this->GetLibraryNamesInternal(sharedName, sharedSOName, sharedRealName, importName, pdbName, cmTarget::SHARED_LIBRARY, config); } else { // Use the name of the real type of the library (shared or module). this->GetLibraryNamesInternal(sharedName, sharedSOName, sharedRealName, importName, pdbName, this->GetType(), config); } } void cmTarget::GetLibraryNamesInternal(std::string& name, std::string& soName, std::string& realName, std::string& impName, std::string& pdbName, TargetType type, const char* config) { // Construct the name of the soname flag variable for this language. const char* ll = this->GetLinkerLanguage( this->Makefile->GetLocalGenerator()->GetGlobalGenerator()); std::string sonameFlag = "CMAKE_SHARED_LIBRARY_SONAME"; if(ll) { sonameFlag += "_"; sonameFlag += ll; } sonameFlag += "_FLAG"; // Check for library version properties. const char* version = this->GetProperty("VERSION"); const char* soversion = this->GetProperty("SOVERSION"); if((type != cmTarget::SHARED_LIBRARY && type != cmTarget::MODULE_LIBRARY) || !this->Makefile->GetDefinition(sonameFlag.c_str())) { // Versioning is supported only for shared libraries and modules, // and then only when the platform supports an soname flag. version = 0; soversion = 0; } if(version && !soversion) { // The soversion must be set if the library version is set. Use // the library version as the soversion. soversion = version; } // Get the components of the library name. std::string prefix; std::string base; std::string suffix; this->GetFullNameInternal(type, config, false, prefix, base, suffix); // The library name. name = prefix+base+suffix; // The library's soname. #if defined(__APPLE__) soName = prefix+base; #else soName = name; #endif if(soversion) { soName += "."; soName += soversion; } #if defined(__APPLE__) soName += suffix; #endif // The library's real name on disk. #if defined(__APPLE__) realName = prefix+base; #else realName = name; #endif if(version) { realName += "."; realName += version; } else if(soversion) { realName += "."; realName += soversion; } #if defined(__APPLE__) realName += suffix; #endif // The import library name. if(type == cmTarget::SHARED_LIBRARY) { impName = this->GetFullNameInternal(type, config, true); } else { impName = ""; } // The program database file name. pdbName = prefix+base+".pdb"; } void cmTarget::GetExecutableNames(std::string& name, std::string& realName, std::string& pdbName, const char* config) { // Get the names based on the real type of the executable. this->GetExecutableNamesInternal(name, realName, pdbName, this->GetType(), config); } void cmTarget::GetExecutableCleanNames(std::string& name, std::string& realName, std::string& pdbName, const char* config) { // Get the name and versioned name of this executable. this->GetExecutableNamesInternal(name, realName, pdbName, cmTarget::EXECUTABLE, config); } void cmTarget::GetExecutableNamesInternal(std::string& name, std::string& realName, std::string& pdbName, TargetType type, const char* config) { // This versioning is supported only for executables and then only // when the platform supports symbolic links. #if defined(_WIN32) && !defined(__CYGWIN__) const char* version = 0; #else // Check for executable version properties. const char* version = this->GetProperty("VERSION"); if(type != cmTarget::EXECUTABLE) { version = 0; } #endif // Get the components of the executable name. std::string prefix; std::string base; std::string suffix; this->GetFullNameInternal(type, config, false, prefix, base, suffix); // The executable name. name = prefix+base+suffix; // The executable's real name on disk. #if defined(__CYGWIN__) realName = prefix+base; #else realName = name; #endif if(version) { realName += "-"; realName += version; } #if defined(__CYGWIN__) realName += suffix; #endif // The program database file name. pdbName = prefix+base+".pdb"; } //---------------------------------------------------------------------------- void cmTarget::SetPropertyDefault(const char* property, const char* default_value) { // Compute the name of the variable holding the default value. std::string var = "CMAKE_"; var += property; if(const char* value = this->Makefile->GetDefinition(var.c_str())) { this->SetProperty(property, value); } else if(default_value) { this->SetProperty(property, default_value); } } //---------------------------------------------------------------------------- bool cmTarget::HaveBuildTreeRPATH() { return (!this->GetPropertyAsBool("SKIP_BUILD_RPATH") && !this->LinkLibraries.empty()); } //---------------------------------------------------------------------------- bool cmTarget::HaveInstallTreeRPATH() { const char* install_rpath = this->GetProperty("INSTALL_RPATH"); return install_rpath && *install_rpath; } //---------------------------------------------------------------------------- bool cmTarget::NeedRelinkBeforeInstall() { // Only executables and shared libraries can have an rpath and may // need relinking. if(this->TargetTypeValue != cmTarget::EXECUTABLE && this->TargetTypeValue != cmTarget::SHARED_LIBRARY && this->TargetTypeValue != cmTarget::MODULE_LIBRARY) { return false; } // If there is no install location this target will not be installed // and therefore does not need relinking. if(!this->GetHaveInstallRule()) { return false; } // If skipping all rpaths completely then no relinking is needed. if(this->Makefile->IsOn("CMAKE_SKIP_RPATH")) { return false; } // If building with the install-tree rpath no relinking is needed. if(this->GetPropertyAsBool("BUILD_WITH_INSTALL_RPATH")) { return false; } // Check for rpath support on this platform. if(const char* ll = this->GetLinkerLanguage( this->Makefile->GetLocalGenerator()->GetGlobalGenerator())) { std::string flagVar = "CMAKE_SHARED_LIBRARY_RUNTIME_"; flagVar += ll; flagVar += "_FLAG"; if(!this->Makefile->IsSet(flagVar.c_str())) { // There is no rpath support on this platform so nothing needs // relinking. return false; } } else { // No linker language is known. This error will be reported by // other code. return false; } // If either a build or install tree rpath is set then the rpath // will likely change between the build tree and install tree and // this target must be relinked. return this->HaveBuildTreeRPATH() || this->HaveInstallTreeRPATH(); } //---------------------------------------------------------------------------- std::string cmTarget::GetInstallNameDirForBuildTree(const char* config) { // If building directly for installation then the build tree install_name // is the same as the install tree. if(this->GetPropertyAsBool("BUILD_WITH_INSTALL_RPATH")) { return GetInstallNameDirForInstallTree(config); } // Use the build tree directory for the target. if(this->Makefile->IsOn("CMAKE_PLATFORM_HAS_INSTALLNAME") && !this->Makefile->IsOn("CMAKE_SKIP_RPATH") && !this->GetPropertyAsBool("SKIP_BUILD_RPATH")) { std::string dir = this->GetDirectory(config); dir += "/"; return dir; } else { return ""; } } //---------------------------------------------------------------------------- std::string cmTarget::GetInstallNameDirForInstallTree(const char*) { // Lookup the target property. const char* install_name_dir = this->GetProperty("INSTALL_NAME_DIR"); if(this->Makefile->IsOn("CMAKE_PLATFORM_HAS_INSTALLNAME") && !this->Makefile->IsOn("CMAKE_SKIP_RPATH") && install_name_dir && *install_name_dir) { std::string dir = install_name_dir; dir += "/"; return dir; } else { return ""; } }