NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "vtable for std::basic_ofstream<char, std::char_traits<char> >", referenced from:
      ofstream_wrapper::~ofstream_wrapper() in cata_utility.o
      ofstream_wrapper::~ofstream_wrapper() in cata_utility.o
      ofstream_wrapper::ofstream_wrapper(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::_Ios_Openmode) in cata_utility.o
      ofstream_wrapper::ofstream_wrapper(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::_Ios_Openmode) in cata_utility.o
      DebugFile::init(DebugOutput, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) in debug.o
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "vtable for std::basic_streambuf<char, std::char_traits<char> >", referenced from:
      std::__cxx11::basic_stringbuf<char, std::char_traits<char>, std::allocator<char> >::~basic_stringbuf() in armor_layers.o
      std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > enumerate_as_string<std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, enumeration_conjunction) in armor_layers.o
      std::__cxx11::basic_stringbuf<char, std::char_traits<char>, std::allocator<char> >::~basic_stringbuf() in artifact.o
      new_artifact[abi:cxx11]() in artifact.o
      std::__cxx11::basic_stringbuf<char, std::char_traits<char>, std::allocator<char> >::~basic_stringbuf() in auto_pickup.o
      auto_pickup::test_pattern(int, int) in auto_pickup.o
      std::__cxx11::basic_stringbuf<char, std::char_traits<char>, std::allocator<char> >::~basic_stringbuf() in avatar.o
      ...
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
  "vtable for std::basic_ios<char, std::char_traits<char> >", referenced from:
      std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > enumerate_as_string<std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, enumeration_conjunction) in armor_layers.o
      new_artifact[abi:cxx11]() in artifact.o
      auto_pickup::test_pattern(int, int) in auto_pickup.o
      std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > enumerate_as_string<std::set<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >(std::set<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::less<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, enumeration_conjunction) in avatar.o
      std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > enumerate_as_string<std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >(std::vector<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, enumeration_conjunction) in avatar.o
      std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > enumerate_as_string<std::__cxx11::list<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >(std::__cxx11::list<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > > > const&, enumeration_conjunction) in avatar.o
      basecamp::load_data(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) in basecamp.o
      ...
  NOTE: a missing vtable usually means the first non-inline virtual member function has no definition.
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [cataclysm-tiles] Error 1