Installing Protobuf Development Libraries in MinGW

问题:

I installed Protobuf in MinGW from the sources on github.

When I try to compile my C++ program I get errors:

CMakeFiles/nxcore_interface.dir/main.cpp.o:main.cpp:(.rdata$.refptr._ZN6google8protobuf8internal13empty_string_E[.refptr._ZN6google8protobuf8internal13empty_string_E]+0x0): undefined reference to `google::protobuf::internal::empty_string_'
collect2: error: ld returned 1 exit status

I found something that indicates the development libs are not present:

Program with protocol-buffers don't compile with MinGW-w64: "undefined reference to google::protobuf:: ..."

I have included the -lprotobuf compiler flag.

After some searching I determined I need to use libprotobuf-dev but I am having trouble locating it.

Does anyone know where to get it, or is something else wrong?

回答1:

You should compile your application with pkg-config.

g++ my_program.cpp `pkg-config --cflags --libs protobuf`

If you don't have pkg-config you should locate libraries path and set them with -L option. Eg:

g++ my_program.cpp -L/usr/local/protobuf/lib -lprotobuf