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517 lines
17 KiB
517 lines
17 KiB
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmFindLibraryCommand.h"
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#include "cmCacheManager.h"
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#include <cmsys/Directory.hxx>
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#include <cmsys/stl/algorithm>
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cmFindLibraryCommand::cmFindLibraryCommand()
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{
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this->EnvironmentPath = "LIB";
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryCommand::GenerateDocumentation()
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{
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this->cmFindBase::GenerateDocumentation();
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"FIND_XXX", "find_library");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"CMAKE_XXX_PATH", "CMAKE_LIBRARY_PATH");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"CMAKE_XXX_MAC_PATH",
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"CMAKE_FRAMEWORK_PATH");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"CMAKE_SYSTEM_XXX_MAC_PATH",
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"CMAKE_SYSTEM_FRAMEWORK_PATH");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"XXX_SYSTEM", "LIB");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"CMAKE_SYSTEM_XXX_PATH",
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"CMAKE_SYSTEM_LIBRARY_PATH");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"SEARCH_XXX_DESC", "library");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"SEARCH_XXX", "library");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"XXX_SUBDIR", "lib");
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cmSystemTools::ReplaceString(
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this->GenericDocumentation,
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"XXX_EXTRA_PREFIX_ENTRY",
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" <prefix>/lib/<arch> if CMAKE_LIBRARY_ARCHITECTURE is set, and\n");
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cmSystemTools::ReplaceString(this->GenericDocumentation,
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"CMAKE_FIND_ROOT_PATH_MODE_XXX",
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"CMAKE_FIND_ROOT_PATH_MODE_LIBRARY");
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this->GenericDocumentation +=
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"\n"
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"If the library found is a framework, then VAR will be set to "
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"the full path to the framework <fullPath>/A.framework. "
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"When a full path to a framework is used as a library, "
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"CMake will use a -framework A, and a -F<fullPath> to "
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"link the framework to the target. ";
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}
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// cmFindLibraryCommand
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bool cmFindLibraryCommand
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::InitialPass(std::vector<std::string> const& argsIn, cmExecutionStatus &)
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{
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this->VariableDocumentation = "Path to a library.";
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this->CMakePathName = "LIBRARY";
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if(!this->ParseArguments(argsIn))
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{
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return false;
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}
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if(this->AlreadyInCache)
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{
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// If the user specifies the entry on the command line without a
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// type we should add the type and docstring but keep the original
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// value.
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if(this->AlreadyInCacheWithoutMetaInfo)
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{
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this->Makefile->AddCacheDefinition(this->VariableName.c_str(), "",
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this->VariableDocumentation.c_str(),
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cmCacheManager::FILEPATH);
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}
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return true;
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}
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if(const char* abi_name =
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this->Makefile->GetDefinition("CMAKE_INTERNAL_PLATFORM_ABI"))
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{
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std::string abi = abi_name;
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if(abi.find("ELF N32") != abi.npos)
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{
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// Convert lib to lib32.
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this->AddArchitecturePaths("32");
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}
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}
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if(this->Makefile->GetCMakeInstance()
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->GetPropertyAsBool("FIND_LIBRARY_USE_LIB64_PATHS"))
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{
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// add special 64 bit paths if this is a 64 bit compile.
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this->AddLib64Paths();
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}
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std::string library = this->FindLibrary();
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if(library != "")
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{
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// Save the value in the cache
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this->Makefile->AddCacheDefinition(this->VariableName.c_str(),
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library.c_str(),
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this->VariableDocumentation.c_str(),
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cmCacheManager::FILEPATH);
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return true;
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}
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std::string notfound = this->VariableName + "-NOTFOUND";
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this->Makefile->AddCacheDefinition(this->VariableName.c_str(),
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notfound.c_str(),
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this->VariableDocumentation.c_str(),
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cmCacheManager::FILEPATH);
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return true;
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryCommand::AddArchitecturePaths(const char* suffix)
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{
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std::vector<std::string> newPaths;
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bool found = false;
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std::string subpath = "lib";
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subpath += suffix;
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subpath += "/";
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for(std::vector<std::string>::iterator i = this->SearchPaths.begin();
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i != this->SearchPaths.end(); ++i)
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{
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// Try replacing lib/ with lib<suffix>/
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std::string s = *i;
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cmSystemTools::ReplaceString(s, "lib/", subpath.c_str());
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if((s != *i) && cmSystemTools::FileIsDirectory(s.c_str()))
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{
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found = true;
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newPaths.push_back(s);
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}
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// Now look for lib<suffix>
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s = *i;
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s += suffix;
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if(cmSystemTools::FileIsDirectory(s.c_str()))
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{
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found = true;
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newPaths.push_back(s);
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}
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// now add the original unchanged path
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if(cmSystemTools::FileIsDirectory(i->c_str()))
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{
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newPaths.push_back(*i);
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}
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}
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// If any new paths were found replace the original set.
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if(found)
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{
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this->SearchPaths = newPaths;
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}
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}
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void cmFindLibraryCommand::AddLib64Paths()
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{
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if(!this->Makefile->GetLocalGenerator()->GetGlobalGenerator()->
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GetLanguageEnabled("C"))
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{
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return;
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}
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std::string voidsize =
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this->Makefile->GetSafeDefinition("CMAKE_SIZEOF_VOID_P");
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int size = atoi(voidsize.c_str());
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if(size != 8)
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{
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return;
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}
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std::vector<std::string> path64;
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bool found64 = false;
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for(std::vector<std::string>::iterator i = this->SearchPaths.begin();
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i != this->SearchPaths.end(); ++i)
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{
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std::string s = *i;
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std::string s2 = *i;
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cmSystemTools::ReplaceString(s, "lib/", "lib64/");
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// try to replace lib with lib64 and see if it is there,
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// then prepend it to the path
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// Note that all paths have trailing slashes.
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if((s != *i) && cmSystemTools::FileIsDirectory(s.c_str()))
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{
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path64.push_back(s);
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found64 = true;
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}
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// now just add a 64 to the path name and if it is there,
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// add it to the path
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s2 += "64/";
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if(cmSystemTools::FileIsDirectory(s2.c_str()))
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{
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found64 = true;
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path64.push_back(s2);
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}
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// now add the original unchanged path
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if(cmSystemTools::FileIsDirectory(i->c_str()))
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{
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path64.push_back(*i);
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}
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}
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// now replace the SearchPaths with the 64 bit converted path
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// if any 64 bit paths were discovered
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if(found64)
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{
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this->SearchPaths = path64;
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}
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindLibrary()
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{
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std::string library;
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if(this->SearchFrameworkFirst || this->SearchFrameworkOnly)
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{
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library = this->FindFrameworkLibrary();
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}
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if(library.empty() && !this->SearchFrameworkOnly)
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{
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library = this->FindNormalLibrary();
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}
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if(library.empty() && this->SearchFrameworkLast)
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{
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library = this->FindFrameworkLibrary();
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}
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return library;
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}
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//----------------------------------------------------------------------------
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struct cmFindLibraryHelper
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{
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cmFindLibraryHelper(cmMakefile* mf);
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// Context information.
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cmMakefile* Makefile;
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cmGlobalGenerator* GG;
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// List of valid prefixes and suffixes.
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std::vector<std::string> Prefixes;
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std::vector<std::string> Suffixes;
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std::string PrefixRegexStr;
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std::string SuffixRegexStr;
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// Keep track of the best library file found so far.
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typedef std::vector<std::string>::size_type size_type;
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std::string BestPath;
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size_type BestPrefix;
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size_type BestSuffix;
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// Support for OpenBSD shared library naming: lib<name>.so.<major>.<minor>
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bool OpenBSD;
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unsigned int BestMajor;
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unsigned int BestMinor;
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// Current name under consideration.
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cmsys::RegularExpression NameRegex;
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bool TryRawName;
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std::string RawName;
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// Current full path under consideration.
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std::string TestPath;
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void RegexFromLiteral(std::string& out, std::string const& in);
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void RegexFromList(std::string& out, std::vector<std::string> const& in);
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size_type GetPrefixIndex(std::string const& prefix)
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{
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return cmsys_stl::find(this->Prefixes.begin(), this->Prefixes.end(),
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prefix) - this->Prefixes.begin();
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}
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size_type GetSuffixIndex(std::string const& suffix)
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{
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return cmsys_stl::find(this->Suffixes.begin(), this->Suffixes.end(),
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suffix) - this->Suffixes.begin();
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}
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bool HasValidSuffix(std::string const& name);
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void SetName(std::string const& name);
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bool CheckDirectory(std::string const& path);
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};
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//----------------------------------------------------------------------------
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cmFindLibraryHelper::cmFindLibraryHelper(cmMakefile* mf):
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Makefile(mf)
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{
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this->GG = this->Makefile->GetLocalGenerator()->GetGlobalGenerator();
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// Collect the list of library name prefixes/suffixes to try.
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const char* prefixes_list =
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this->Makefile->GetRequiredDefinition("CMAKE_FIND_LIBRARY_PREFIXES");
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const char* suffixes_list =
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this->Makefile->GetRequiredDefinition("CMAKE_FIND_LIBRARY_SUFFIXES");
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cmSystemTools::ExpandListArgument(prefixes_list, this->Prefixes, true);
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cmSystemTools::ExpandListArgument(suffixes_list, this->Suffixes, true);
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this->RegexFromList(this->PrefixRegexStr, this->Prefixes);
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this->RegexFromList(this->SuffixRegexStr, this->Suffixes);
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// Check whether to use OpenBSD-style library version comparisons.
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this->OpenBSD =
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this->Makefile->GetCMakeInstance()
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->GetPropertyAsBool("FIND_LIBRARY_USE_OPENBSD_VERSIONING");
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this->TryRawName = false;
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// No library file has yet been found.
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this->BestPrefix = this->Prefixes.size();
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this->BestSuffix = this->Suffixes.size();
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this->BestMajor = 0;
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this->BestMinor = 0;
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryHelper::RegexFromLiteral(std::string& out,
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std::string const& in)
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{
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for(std::string::const_iterator ci = in.begin(); ci != in.end(); ++ci)
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{
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char ch = *ci;
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if(ch == '[' || ch == ']' || ch == '(' || ch == ')' || ch == '\\' ||
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ch == '.' || ch == '*' || ch == '+' || ch == '?' || ch == '-' ||
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ch == '^' || ch == '$')
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{
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out += "\\";
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}
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#if defined(_WIN32) || defined(__APPLE__)
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out += tolower(ch);
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#else
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out += ch;
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#endif
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}
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryHelper::RegexFromList(std::string& out,
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std::vector<std::string> const& in)
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{
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// Surround the list in parens so the '|' does not apply to anything
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// else and the result can be checked after matching.
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out += "(";
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const char* sep = "";
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for(std::vector<std::string>::const_iterator si = in.begin();
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si != in.end(); ++si)
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{
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// Separate from previous item.
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out += sep;
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sep = "|";
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// Append this item.
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this->RegexFromLiteral(out, *si);
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}
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out += ")";
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}
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//----------------------------------------------------------------------------
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bool cmFindLibraryHelper::HasValidSuffix(std::string const& name)
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{
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// Check if the given name ends in a valid library suffix.
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for(std::vector<std::string>::const_iterator si = this->Suffixes.begin();
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si != this->Suffixes.end(); ++si)
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{
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std::string const& suffix = *si;
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if(name.length() > suffix.length() &&
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name.substr(name.size()-suffix.length()) == suffix)
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{
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return true;
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}
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}
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return false;
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}
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//----------------------------------------------------------------------------
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void cmFindLibraryHelper::SetName(std::string const& name)
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{
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// Consider checking the raw name too.
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this->TryRawName = this->HasValidSuffix(name);
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this->RawName = name;
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// Build a regular expression to match library names.
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std::string regex = "^";
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regex += this->PrefixRegexStr;
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this->RegexFromLiteral(regex, name);
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regex += this->SuffixRegexStr;
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if(this->OpenBSD)
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{
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regex += "(\\.[0-9]+\\.[0-9]+)?";
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}
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regex += "$";
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this->NameRegex.compile(regex.c_str());
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}
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//----------------------------------------------------------------------------
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bool cmFindLibraryHelper::CheckDirectory(std::string const& path)
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{
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// If the original library name provided by the user matches one of
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// the suffixes, try it first. This allows users to search
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// specifically for a static library on some platforms (on MS tools
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// one cannot tell just from the library name whether it is a static
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// library or an import library).
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if(this->TryRawName)
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{
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this->TestPath = path;
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this->TestPath += this->RawName;
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if(cmSystemTools::FileExists(this->TestPath.c_str(), true))
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{
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this->BestPath =
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cmSystemTools::CollapseFullPath(this->TestPath.c_str());
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cmSystemTools::ConvertToUnixSlashes(this->BestPath);
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return true;
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}
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}
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// Search for a file matching the library name regex.
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std::string dir = path;
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cmSystemTools::ConvertToUnixSlashes(dir);
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std::set<cmStdString> const& files = this->GG->GetDirectoryContent(dir);
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for(std::set<cmStdString>::const_iterator fi = files.begin();
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fi != files.end(); ++fi)
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{
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std::string const& origName = *fi;
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#if defined(_WIN32) || defined(__APPLE__)
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std::string testName = cmSystemTools::LowerCase(origName);
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#else
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std::string const& testName = origName;
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#endif
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if(this->NameRegex.find(testName))
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{
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this->TestPath = path;
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this->TestPath += origName;
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if(!cmSystemTools::FileIsDirectory(this->TestPath.c_str()))
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{
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// This is a matching file. Check if it is better than the
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// best name found so far. Earlier prefixes are preferred,
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// followed by earlier suffixes. For OpenBSD, shared library
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// version extensions are compared.
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size_type prefix = this->GetPrefixIndex(this->NameRegex.match(1));
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size_type suffix = this->GetSuffixIndex(this->NameRegex.match(2));
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unsigned int major = 0;
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unsigned int minor = 0;
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if(this->OpenBSD)
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{
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sscanf(this->NameRegex.match(3).c_str(), ".%u.%u", &major, &minor);
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}
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if(this->BestPath.empty() || prefix < this->BestPrefix ||
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(prefix == this->BestPrefix && suffix < this->BestSuffix) ||
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(prefix == this->BestPrefix && suffix == this->BestSuffix &&
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(major > this->BestMajor ||
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(major == this->BestMajor && minor > this->BestMinor))))
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{
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this->BestPath = this->TestPath;
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this->BestPrefix = prefix;
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this->BestSuffix = suffix;
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this->BestMajor = major;
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this->BestMinor = minor;
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}
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}
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}
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}
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// Use the best candidate found in this directory, if any.
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return !this->BestPath.empty();
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindNormalLibrary()
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{
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// Search the entire path for each name.
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cmFindLibraryHelper helper(this->Makefile);
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for(std::vector<std::string>::const_iterator ni = this->Names.begin();
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ni != this->Names.end() ; ++ni)
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{
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// Switch to searching for this name.
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std::string const& name = *ni;
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helper.SetName(name);
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// Search every directory.
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for(std::vector<std::string>::const_iterator
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p = this->SearchPaths.begin();
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p != this->SearchPaths.end(); ++p)
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{
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if(helper.CheckDirectory(*p))
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{
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return helper.BestPath;
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}
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}
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}
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// Couldn't find the library.
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return "";
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}
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//----------------------------------------------------------------------------
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std::string cmFindLibraryCommand::FindFrameworkLibrary()
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{
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// Search for a framework of each name in the entire search path.
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for(std::vector<std::string>::const_iterator ni = this->Names.begin();
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ni != this->Names.end() ; ++ni)
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{
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// Search the paths for a framework with this name.
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std::string fwName = *ni;
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fwName += ".framework";
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std::string fwPath = cmSystemTools::FindDirectory(fwName.c_str(),
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this->SearchPaths,
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true);
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if(!fwPath.empty())
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{
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return fwPath;
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}
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}
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// No framework found.
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return "";
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}
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