.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::InitializationErrorString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::io::CodedOutputStream::WriteStringWithSizeToArray(std::string const&, unsigned char*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::GetTypeName() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::AssignDescriptors(std::string const&, google::protobuf::internal::MigrationSchema const*, google::protobuf::Message const* const*, unsigned int const*, google::protobuf::MessageFactory*, google::protobuf::Metadata*, google::protobuf::EnumDescriptor const**, google::protobuf::ServiceDescriptor const**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::SerializeToString(std::string*) const'
.build_release/lib/libcaffe.so: undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::DebugString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::ParseFromString(std::string const&)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::NameOfEnum(google::protobuf::EnumDescriptor const*, int)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::ReadBytes(google::protobuf::io::CodedInputStream*, std::string*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageFactory::InternalRegisterGeneratedFile(char const*, void (*)(std::string const&))'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::DB::Open(leveldb::Options const&, std::string const&, leveldb::DB**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteBytesMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::fixed_address_empty_string'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::Status::ToString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteString(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
collect2: error: ld returned 1 exit status
make: *** [Makefile:617: .build_release/tools/upgrade_net_proto_text.bin] Error 1
make: *** Waiting for unfinished jobs....
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::InitializationErrorString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::io::CodedOutputStream::WriteStringWithSizeToArray(std::string const&, unsigned char*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::GetTypeName() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::AssignDescriptors(std::string const&, google::protobuf::internal::MigrationSchema const*, google::protobuf::Message const* const*, unsigned int const*, google::protobuf::MessageFactory*, google::protobuf::Metadata*, google::protobuf::EnumDescriptor const**, google::protobuf::ServiceDescriptor const**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::SerializeToString(std::string*) const'
.build_release/lib/libcaffe.so: undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::DebugString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::ParseFromString(std::string const&)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::NameOfEnum(google::protobuf::EnumDescriptor const*, int)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::ReadBytes(google::protobuf::io::CodedInputStream*, std::string*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageFactory::InternalRegisterGeneratedFile(char const*, void (*)(std::string const&))'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::DB::Open(leveldb::Options const&, std::string const&, leveldb::DB**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteBytesMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::fixed_address_empty_string'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::Status::ToString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteString(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
collect2: error: ld returned 1 exit status
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::InitializationErrorString() const'make: *** [Makefile:617: .build_release/tools/finetune_net.bin] Error 1
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::io::CodedOutputStream::WriteStringWithSizeToArray(std::string const&, unsigned char*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::GetTypeName() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::AssignDescriptors(std::string const&, google::protobuf::internal::MigrationSchema const*, google::protobuf::Message const* const*, unsigned int const*, google::protobuf::MessageFactory*, google::protobuf::Metadata*, google::protobuf::EnumDescriptor const**, google::protobuf::ServiceDescriptor const**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::SerializeToString(std::string*) const'
.build_release/lib/libcaffe.so: undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::DebugString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::ParseFromString(std::string const&)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::NameOfEnum(google::protobuf::EnumDescriptor const*, int)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::ReadBytes(google::protobuf::io::CodedInputStream*, std::string*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageFactory::InternalRegisterGeneratedFile(char const*, void (*)(std::string const&))'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::DB::Open(leveldb::Options const&, std::string const&, leveldb::DB**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteBytesMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::fixed_address_empty_string'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::Status::ToString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteString(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
collect2: error: ld returned 1 exit status
make: *** [Makefile:617: .build_release/tools/train_net.bin] Error 1
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::InitializationErrorString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::io::CodedOutputStream::WriteStringWithSizeToArray(std::string const&, unsigned char*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::GetTypeName() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::AssignDescriptors(std::string const&, google::protobuf::internal::MigrationSchema const*, google::protobuf::Message const* const*, unsigned int const*, google::protobuf::MessageFactory*, google::protobuf::Metadata*, google::protobuf::EnumDescriptor const**, google::protobuf::ServiceDescriptor const**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::SerializeToString(std::string*) const'
.build_release/lib/libcaffe.so: undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::DebugString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::ParseFromString(std::string const&)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::NameOfEnum(google::protobuf::EnumDescriptor const*, int)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::ReadBytes(google::protobuf::io::CodedInputStream*, std::string*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageFactory::InternalRegisterGeneratedFile(char const*, void (*)(std::string const&))'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::DB::Open(leveldb::Options const&, std::string const&, leveldb::DB**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteBytesMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::fixed_address_empty_string'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::Status::ToString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteString(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
collect2: error: ld returned 1 exit status
make: *** [Makefile:617: .build_release/tools/upgrade_net_proto_binary.bin] Error 1
.build_release/tools/convert_imageset.o: In function `std::string* google::MakeCheckOpString<unsigned long, int>(unsigned long const&, int const&, char const*)':
convert_imageset.cpp:(.text._ZN6google17MakeCheckOpStringImiEEPSsRKT_RKT0_PKc[_ZN6google17MakeCheckOpStringImiEEPSsRKT_RKT0_PKc]+0x40): undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/tools/convert_imageset.o: In function `_GLOBAL__sub_I_convert_imageset.cpp':
convert_imageset.cpp:(.text.startup+0x113): undefined reference to `google::FlagRegisterer::FlagRegisterer<std::string>(char const*, char const*, char const*, std::string*, std::string*)'
convert_imageset.cpp:(.text.startup+0x274): undefined reference to `google::FlagRegisterer::FlagRegisterer<std::string>(char const*, char const*, char const*, std::string*, std::string*)'
.build_release/tools/convert_imageset.o: In function `main':
convert_imageset.cpp:(.text.startup+0x328): undefined reference to `google::SetUsageMessage(std::string const&)'
convert_imageset.cpp:(.text.startup+0xbdb): undefined reference to `google::protobuf::MessageLite::SerializeToString(std::string*) const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::InitializationErrorString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::io::CodedOutputStream::WriteStringWithSizeToArray(std::string const&, unsigned char*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::GetTypeName() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::AssignDescriptors(std::string const&, google::protobuf::internal::MigrationSchema const*, google::protobuf::Message const* const*, unsigned int const*, google::protobuf::MessageFactory*, google::protobuf::Metadata*, google::protobuf::EnumDescriptor const**, google::protobuf::ServiceDescriptor const**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::DebugString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::ParseFromString(std::string const&)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::NameOfEnum(google::protobuf::EnumDescriptor const*, int)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::ReadBytes(google::protobuf::io::CodedInputStream*, std::string*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageFactory::InternalRegisterGeneratedFile(char const*, void (*)(std::string const&))'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::DB::Open(leveldb::Options const&, std::string const&, leveldb::DB**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteBytesMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::fixed_address_empty_string'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::Status::ToString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteString(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
collect2: error: ld returned 1 exit status
make: *** [Makefile:617: .build_release/tools/convert_imageset.bin] Error 1
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::InitializationErrorString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::io::CodedOutputStream::WriteStringWithSizeToArray(std::string const&, unsigned char*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::GetTypeName() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::AssignDescriptors(std::string const&, google::protobuf::internal::MigrationSchema const*, google::protobuf::Message const* const*, unsigned int const*, google::protobuf::MessageFactory*, google::protobuf::Metadata*, google::protobuf::EnumDescriptor const**, google::protobuf::ServiceDescriptor const**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::SerializeToString(std::string*) const'
.build_release/lib/libcaffe.so: undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::DebugString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::ParseFromString(std::string const&)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::NameOfEnum(google::protobuf::EnumDescriptor const*, int)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::ReadBytes(google::protobuf::io::CodedInputStream*, std::string*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageFactory::InternalRegisterGeneratedFile(char const*, void (*)(std::string const&))'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::DB::Open(leveldb::Options const&, std::string const&, leveldb::DB**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteBytesMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::fixed_address_empty_string'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::Status::ToString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteString(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
collect2: error: ld returned 1 exit status
make: *** [Makefile:617: .build_release/tools/net_speed_benchmark.bin] Error 1
.build_release/tools/compute_image_mean.o: In function `std::string* google::MakeCheckOpString<int, int>(int const&, int const&, char const*)':
compute_image_mean.cpp:(.text._ZN6google17MakeCheckOpStringIiiEEPSsRKT_RKT0_PKc[_ZN6google17MakeCheckOpStringIiiEEPSsRKT_RKT0_PKc]+0x40): undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/tools/compute_image_mean.o: In function `std::string* google::MakeCheckOpString<unsigned long, int>(unsigned long const&, int const&, char const*)':
compute_image_mean.cpp:(.text._ZN6google17MakeCheckOpStringImiEEPSsRKT_RKT0_PKc[_ZN6google17MakeCheckOpStringImiEEPSsRKT_RKT0_PKc]+0x40): undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/tools/compute_image_mean.o: In function `_GLOBAL__sub_I_compute_image_mean.cpp':
compute_image_mean.cpp:(.text.startup+0xaf): undefined reference to `google::FlagRegisterer::FlagRegisterer<std::string>(char const*, char const*, char const*, std::string*, std::string*)'
.build_release/tools/compute_image_mean.o: In function `main':
compute_image_mean.cpp:(.text.startup+0x155): undefined reference to `google::SetUsageMessage(std::string const&)'
compute_image_mean.cpp:(.text.startup+0x259): undefined reference to `google::protobuf::MessageLite::ParseFromString(std::string const&)'
compute_image_mean.cpp:(.text.startup+0x3ee): undefined reference to `google::protobuf::MessageLite::ParseFromString(std::string const&)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::InitializationErrorString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::io::CodedOutputStream::WriteStringWithSizeToArray(std::string const&, unsigned char*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::GetTypeName() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::AssignDescriptors(std::string const&, google::protobuf::internal::MigrationSchema const*, google::protobuf::Message const* const*, unsigned int const*, google::protobuf::MessageFactory*, google::protobuf::Metadata*, google::protobuf::EnumDescriptor const**, google::protobuf::ServiceDescriptor const**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::SerializeToString(std::string*) const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::DebugString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::NameOfEnum(google::protobuf::EnumDescriptor const*, int)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::ReadBytes(google::protobuf::io::CodedInputStream*, std::string*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageFactory::InternalRegisterGeneratedFile(char const*, void (*)(std::string const&))'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::DB::Open(leveldb::Options const&, std::string const&, leveldb::DB**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteBytesMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::fixed_address_empty_string'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::Status::ToString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteString(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
collect2: error: ld returned 1 exit status
make: *** [Makefile:617: .build_release/tools/compute_image_mean.bin] Error 1
.build_release/tools/extract_features.o: In function `std::string* google::MakeCheckOpString<int, int>(int const&, int const&, char const*)':
extract_features.cpp:(.text._ZN6google17MakeCheckOpStringIiiEEPSsRKT_RKT0_PKc[_ZN6google17MakeCheckOpStringIiiEEPSsRKT_RKT0_PKc]+0x40): undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/tools/extract_features.o: In function `std::string* google::MakeCheckOpString<unsigned long, unsigned long>(unsigned long const&, unsigned long const&, char const*)':
extract_features.cpp:(.text._ZN6google17MakeCheckOpStringImmEEPSsRKT_RKT0_PKc[_ZN6google17MakeCheckOpStringImmEEPSsRKT_RKT0_PKc]+0x41): undefined reference to `google::base::CheckOpMessageBuilder::NewString()'
.build_release/tools/extract_features.o: In function `int feature_extraction_pipeline<float>(int, char**)':
extract_features.cpp:(.text._Z27feature_extraction_pipelineIfEiiPPc[_Z27feature_extraction_pipelineIfEiiPPc]+0xc6a): undefined reference to `google::protobuf::internal::fixed_address_empty_string'
extract_features.cpp:(.text._Z27feature_extraction_pipelineIfEiiPPc[_Z27feature_extraction_pipelineIfEiiPPc]+0x127d): undefined reference to `google::protobuf::MessageLite::SerializeToString(std::string*) const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::InitializationErrorString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteStringMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::io::CodedOutputStream::WriteStringWithSizeToArray(std::string const&, unsigned char*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::GetTypeName() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::AssignDescriptors(std::string const&, google::protobuf::internal::MigrationSchema const*, google::protobuf::Message const* const*, unsigned int const*, google::protobuf::MessageFactory*, google::protobuf::Metadata*, google::protobuf::EnumDescriptor const**, google::protobuf::ServiceDescriptor const**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::Message::DebugString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageLite::ParseFromString(std::string const&)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::NameOfEnum(google::protobuf::EnumDescriptor const*, int)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::ReadBytes(google::protobuf::io::CodedInputStream*, std::string*)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::MessageFactory::InternalRegisterGeneratedFile(char const*, void (*)(std::string const&))'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::DB::Open(leveldb::Options const&, std::string const&, leveldb::DB**)'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteBytesMaybeAliased(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
.build_release/lib/libcaffe.so: undefined reference to `leveldb::Status::ToString() const'
.build_release/lib/libcaffe.so: undefined reference to `google::protobuf::internal::WireFormatLite::WriteString(int, std::string const&, google::protobuf::io::CodedOutputStream*)'
collect2: error: ld returned 1 exit status
make: *** [Makefile:617: .build_release/tools/extract_features.bin] Error 1