gistfile1.cpp

Undefined symbols for architecture x86_64:
  "_b_deserialize_size_t", referenced from:
      DatabaseInMemory::deserialize(unsigned long (*)(char*, unsigned long, void*), void*) in DatabaseInMemory.cc.o
  "_b_deserialize_sized", referenced from:
      std::__1::unique_ptr<UnresolvedQuestionAnswer, std::__1::default_delete<UnresolvedQuestionAnswer> > b_deserialize_sized<UnresolvedQuestionAnswer>(unsigned long (*)(bool*, unsigned long (*)(char*, unsigned long, void*), void*), unsigned long (*)(char*, unsigned long, void*), void*) in DatabaseInMemory.cc.o
      std::__1::unique_ptr<UnresolvedDependency, std::__1::default_delete<UnresolvedDependency> > b_deserialize_sized<UnresolvedDependency>(unsigned long (*)(bool*, unsigned long (*)(char*, unsigned long, void*), void*), unsigned long (*)(char*, unsigned long, void*), void*) in DatabaseInMemory.cc.o
  "_b_serialize_size_t", referenced from:
      serialize_uuid(B_UUID, void (*)(char const*, unsigned long, void*), void*) in DatabaseInMemory.cc.o
      DatabaseInMemory::serialize(void (*)(char const*, unsigned long, void*), void*) const in DatabaseInMemory.cc.o
      Dependency::serialize(void (*)(char const*, unsigned long, void*), void*) const in DatabaseInMemory.cc.o
      QuestionAnswer::serialize(void (*)(char const*, unsigned long, void*), void*) const in DatabaseInMemory.cc.o
  "_b_serialize_sized", referenced from:
      void b_serialize_sized<QuestionAnswer>(QuestionAnswer const&, void (*)(unsigned long, void (*)(char const*, unsigned long, void*), void*), void (*)(char const*, unsigned long, void*), void*) in DatabaseInMemory.cc.o
      void b_serialize_sized<Dependency>(Dependency const&, void (*)(unsigned long, void (*)(char const*, unsigned long, void*), void*), void (*)(char const*, unsigned long, void*), void*) in DatabaseInMemory.cc.o
      Dependency::serialize(void (*)(char const*, unsigned long, void*), void*) const in DatabaseInMemory.cc.o
      QuestionAnswer::serialize(void (*)(char const*, unsigned long, void*), void*) const in DatabaseInMemory.cc.o
  "_b_uuid_compare", referenced from:
      operator<(B_UUID, B_UUID) in DatabaseInMemory.cc.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)