Undefined symbols for architecture arm64:

  "std::__throw_length_error(char const*)", referenced from:

      std::vector >::_M_insert_aux(__gnu_cxx::__normal_iterator > >, int const&) in libbdtts.a(Function.o)

  "std::ios_base::Init::Init()", referenced from:

      __GLOBAL__I_a in libbdtts.a(bd_tts.o)

      __GLOBAL__I_a in libbdtts.a(TextLib.o)

      __GLOBAL__I_a in libbdtts.a(TNEngine.o)

      __GLOBAL__I_a in libbdtts.a(TemplRuleTbl.o)

      __GLOBAL__I_a in libbdtts.a(Function.o)

      __GLOBAL__I_a in libbdtts.a(PosTag.o)

      __GLOBAL__I_a in libbdtts.a(RegexTN.o)

      ...

  "std::ios_base::Init::~Init()", referenced from:

      __GLOBAL__I_a in libbdtts.a(bd_tts.o)

      __GLOBAL__I_a in libbdtts.a(TextLib.o)

      __GLOBAL__I_a in libbdtts.a(TNEngine.o)

      __GLOBAL__I_a in libbdtts.a(TemplRuleTbl.o)

      __GLOBAL__I_a in libbdtts.a(Function.o)

      __GLOBAL__I_a in libbdtts.a(PosTag.o)

      __GLOBAL__I_a in libbdtts.a(RegexTN.o)

      ...

ld: symbol(s) not found for architecture arm64

clang: error: linker command failed with exit code 1 (use -v to see invocation)

这是神马情况啊