C++ MsgPack: linker errors - c++

Question

I'm trying to compile the message pack (http://msgpack.org/) example code and keep getting these errors which I can't get to the bottom of:
g++ -o"MsgPack2" ./src/MsgPack2.o -lmsgpack -lmsgpackc
./src/MsgPack2.o: In function `main':
/mnt/eoh/workspace/MsgPack2/Debug/../src/MsgPack2.cpp:38:
undefined reference to msgpack::rpc::server::listen(std::basic_string<char,
std::char_traits<char>, std::allocator<char> > const&, unsigned
short)'
./src/MsgPack2.o: In functionloop':
/usr/local/include/msgpack/rpc/loop.h:30: undefined reference to
mp::wavy::loop::loop()'
./src/MsgPack2.o: In functionbase':
/usr/local/include/msgpack/rpc/server.h:59: undefined reference to
msgpack::rpc::server::server(msgpack::rpc::loop)'
/usr/local/include/msgpack/rpc/server.h:59: undefined reference to
msgpack::rpc::server::serve(msgpack::rpc::dispatcher*)'
/usr/local/include/msgpack/rpc/server.h:59: undefined reference to
msgpack::rpc::server::~server()'
./src/MsgPack2.o: In function~base':
/usr/local/include/msgpack/rpc/server.h:64: undefined reference to
msgpack::rpc::server::~server()'
./src/MsgPack2.o: In function
myserver::dispatch(msgpack::rpc::request)':
/mnt/eoh/workspace/MsgPack2/Debug/../src/MsgPack2.cpp:14:
undefined reference to msgpack::rpc::request::method()'
/mnt/eoh/workspace/MsgPack2/Debug/../src/MsgPack2.cpp:18:
undefined reference tomsgpack::rpc::request::params()'
./src/MsgPack2.o: In function
msgpack::rpc::loop_util<msgpack::rpc::session_pool>::run(unsigned
long)':
/usr/local/include/msgpack/rpc/loop_util.h:34: undefined reference
tomsgpack::rpc::session_pool::get_loop()'
/usr/local/include/msgpack/rpc/loop_util.h:34: undefined reference
to mp::wavy::loop::run(unsigned long)'
./src/MsgPack2.o: In functionvoid
msgpack::rpc::request::call(int&,
msgpack::type::nil&)':
/usr/local/include/msgpack/rpc/request.h:119: undefined reference
to msgpack::rpc::request::is_sent() const'
/usr/local/include/msgpack/rpc/request.h:122: undefined reference
tomsgpack::rpc::request::get_msgid() const'
/usr/local/include/msgpack/rpc/request.h:125: undefined reference
to msgpack::rpc::request::send_data(msgpack::sbuffer*)'
./src/MsgPack2.o: In functionvoid
msgpack::rpc::request::call(msgpack::type::nil&, unsigned char&)':
/usr/local/include/msgpack/rpc/request.h:119: undefined reference
to msgpack::rpc::request::is_sent() const'
/usr/local/include/msgpack/rpc/request.h:122: undefined reference
tomsgpack::rpc::request::get_msgid() const'
/usr/local/include/msgpack/rpc/request.h:125: undefined reference
to msgpack::rpc::request::send_data(msgpack::sbuffer*)'
./src/MsgPack2.o: In functionvoid
msgpack::rpc::request::call, std::allocator >
(msgpack::type::nil&, std::basic_string,
std::allocator >&)':
/usr/local/include/msgpack/rpc/request.h:119: undefined reference
to msgpack::rpc::request::is_sent() const'
/usr/local/include/msgpack/rpc/request.h:122: undefined reference
tomsgpack::rpc::request::get_msgid() const'
/usr/local/include/msgpack/rpc/request.h:125: undefined reference
to msgpack::rpc::request::send_data(msgpack::sbuffer*)'
./src/MsgPack2.o: In function__shared_count':
/usr/include/c++/4.5/tr1/shared_ptr.h:121: undefined reference to
mp::wavy::loop::~loop()'
./src/MsgPack2.o: In function
std::tr1::_Sp_deleter::operator()(mp::wavy::loop*)
const':
/usr/include/c++/4.5/tr1/shared_ptr.h:99: undefined reference to
`mp::wavy::loop::~loop()'
collect2: ld returned 1 exit status
make: * [MsgPack2] Error 1
And here is the code:
#include <msgpack/rpc/server.h>
class myserver : public msgpack::rpc::server::base {
public:
void add(msgpack::rpc::request req, int a1, int a2)
{
req.result(a1 + a2);
}
public:
void dispatch(msgpack::rpc::request req)
try {
std::string method;
req.method().convert(&method);
if(method == "add") {
msgpack::type::tuple<int, int> params;
req.params().convert(&params);
add(req, params.get<0>(), params.get<1>());
} else {
req.error(msgpack::rpc::NO_METHOD_ERROR);
}
} catch (msgpack::type_error& e) {
req.error(msgpack::rpc::ARGUMENT_ERROR);
return;
} catch (std::exception& e) {
req.error(std::string(e.what()));
return;
}
};
int main(void)
{
myserver svr;
svr.instance.listen("127.0.0.1", 80800);
svr.instance.run(4); // run 4 threads
return 0;
}
If anyone has any ideas, it would be greatly appreciated.
Many thanks in advance,

Answer 1

You need -lmsgpack-rpc.
[Side note: 80800 is not a valid port.]