在OS X上与铿锵声++连接生成大量符号找不到错误

Question

我想在OS X 10.8上使用铿锵声编译器编译一些C++代码（包括C++ 11功能）。我有一个生成的目标文件确定一个makefile，然后在命令：

clang++ -o Analysis.so -shared DataFile.o CR39DataFile.o 

我得到吨关于符号（S）没有发现建筑x86_64的错误。该代码在使用g ++的* nix系统上正常工作，并且适当地为C++ 11支持更改编译器标志。编译*的.o我做它像：

clang++ -c -Wall -std=c++11 -stdlib=libc++ -I../src ../src/DataFile.cc 

编辑：链接命令的输出是：

clang++ -o Analysis.so -shared DataFile.o CR39DataFile.o 
Undefined symbols for architecture x86_64: 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::find(char const*, unsigned long, unsigned long) const", referenced from: 
CR39DataFile::read_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::find(char, unsigned long) const", referenced from: 
CR39DataFile::trim(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::compare(char const*) const", referenced from: 
CR39DataFile::read_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
"std::__1::__vector_base_common<true>::__throw_length_error() const", referenced from: 
std::__1::vector<frame*, std::__1::allocator<frame*> >::__append(unsigned long) in CR39DataFile.o 
std::__1::vector<std::__1::vector<frame*, std::__1::allocator<frame*> >*, std::__1::allocator<std::__1::vector<frame*, std::__1::allocator<frame*> >*> >::__append(unsigned long) in CR39DataFile.o 
"std::__1::__vector_base_common<true>::__throw_out_of_range() const", referenced from: 
std::__1::vector<std::__1::vector<frame*, std::__1::allocator<frame*> >*, std::__1::allocator<std::__1::vector<frame*, std::__1::allocator<frame*> >*> >::at(unsigned long) in CR39DataFile.o 
std::__1::vector<frame*, std::__1::allocator<frame*> >::at(unsigned long) in CR39DataFile.o 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::erase(unsigned long, unsigned long)", referenced from: 
CR39DataFile::trim(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::assign(char const*)", referenced from: 
CR39DataFile::CR39DataFile() in CR39DataFile.o 
CR39DataFile::clear() in CR39DataFile.o 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::insert(unsigned long, unsigned long, char)", referenced from: 
CR39DataFile::read_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::resize(unsigned long, char)", referenced from: 
CR39DataFile::read_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::reserve(unsigned long)", referenced from: 
CR39DataFile::read_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::basic_string(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)", referenced from: 
DataFile::read(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) in DataFile.o 
DataFile::write(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) in DataFile.o 
std::__1::thread::thread<bool (DataFile::*)(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >), DataFile*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, void>(bool (DataFile::*)(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >)&&, DataFile*&&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&&&) in DataFile.o 
CR39DataFile::read_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
CR39DataFile::write_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
CR39DataFile::write_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, float, float, float, float, float, float, float, float, float, float) in CR39DataFile.o 
CR39DataFile::write_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, float, float, float, float, float, float) in CR39DataFile.o 
... 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::basic_string(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, unsigned long, unsigned long, std::__1::allocator<char> const&)", referenced from: 
CR39DataFile::read_thread(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::~basic_string()", referenced from: 
DataFile::~DataFile() in DataFile.o 
DataFile::read(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) in DataFile.o 
DataFile::write(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) in DataFile.o 
std::__1::thread::thread<bool (DataFile::*)(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >), DataFile*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, void>(bool (DataFile::*)(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >)&&, DataFile*&&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&&&) in DataFile.o 
void* std::__1::__thread_proxy<std::__1::tuple<bool (DataFile::*)(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >), DataFile*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >(void*) in DataFile.o 
std::__1::__tuple_leaf<2ul, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, false>::~__tuple_leaf() in DataFile.o 
CR39DataFile::CR39DataFile() in CR39DataFile.o 
... 
"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::operator=(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&)", referenced from: 
CR39DataFile::set_file_path(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
CR39DataFile::set_file_auxpath(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >) in CR39DataFile.o 
"std::__1::__thread_struct::__thread_struct()", referenced from: 
void* std::__1::__thread_proxy<std::__1::tuple<bool (DataFile::*)(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >), DataFile*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >(void*) in DataFile.o 
"std::__1::__thread_struct::~__thread_struct()", referenced from: 
std::__1::__thread_specific_ptr<std::__1::__thread_struct>::reset(std::__1::__thread_struct*) in DataFile.o 
"std::__1::__thread_local_data()", referenced from: 
void* std::__1::__thread_proxy<std::__1::tuple<bool (DataFile::*)(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >), DataFile*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > >(void*) in DataFile.o 
"std::__1::__throw_system_error(int, char const*)", referenced from: 
std::__1::thread::thread<bool (DataFile::*)(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >), DataFile*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, void>(bool (DataFile::*)(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >)&&, DataFile*&&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&&&) in DataFile.o 
"std::__1::thread::~thread()", referenced from: 
DataFile::cleanup_file_io() in DataFile.o 
ld: symbol(s) not found for architecture x86_64 
clang: error: linker command failed with exit code 1 (use -v to see invocation) 
make: *** [Analysis.so] Error 1 

Answer 1

我怀疑这个问题是因为OS所提供的两个C++运行时库十，使用以下的动态链接库：

clang++ -stdlib=libc++ -o Analysis.dylib -shared DataFile.o CR39DataFile.o 

（该-stdlib=libc++是关键的区别）。我认为默认的C++运行时是GNU实现，它会在您使用libC++实现编译时混淆链接器。