"make" command fail

[yangjingbo]

When I execute "make" command in sent2src folder, It fails and show such tips, I don't know why.

asttext.o: In function fasttext::FastText::FastText()': fasttext.cc:(.text+0x506e): undefined reference to zmq_ctx_new'
fasttext.cc:(.text+0x5090): undefined reference to zmq_ctx_set' fasttext.cc:(.text+0x50ae): undefined reference to zmq_ctx_set'
fasttext.cc:(.text+0x50ce): undefined reference to zmq_socket' fasttext.cc:(.text+0x50ed): undefined reference to zmq_bind'
fasttext.cc:(.text+0x5239): undefined reference to zmq_close' fasttext.cc:(.text+0x524d): undefined reference to zmq_ctx_destroy'
fasttext.o: In function fasttext::FastText::nnSent(int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)': fasttext.cc:(.text+0xce45): undefined reference to zmq_recv'
fasttext.cc:(.text+0xd14c): undefined reference to zmq_send' fasttext.o: In function zmq::error_t::what() const':
fasttext.cc:(.text._ZNK3zmq7error_t4whatEv[_ZNK3zmq7error_t4whatEv]+0x8): undefined reference to zmq_strerror' fasttext.o: In function zmq::error_t::error_t()':
fasttext.cc:(.text._ZN3zmq7error_tC2Ev[_ZN3zmq7error_tC5Ev]+0x14): undefined reference to zmq_errno' /tmp/ccoMrdh9.o: In function train(int, char**)':
main.cc:(.text+0x1743): undefined reference to zmq_close' main.cc:(.text+0x1758): undefined reference to zmq_ctx_destroy'
/tmp/ccoMrdh9.o: In function fasttext::FastText::~FastText()': main.cc:(.text._ZN8fasttext8FastTextD2Ev[_ZN8fasttext8FastTextD5Ev]+0x16): undefined reference to zmq_close'
main.cc:(.text._ZN8fasttext8FastTextD2Ev[_ZN8fasttext8FastTextD5Ev]+0x2a): undefined reference to `zmq_ctx_destroy'
collect2: error: ld returned 1 exit status
Makefile:49: recipe for target 'fasttext' failed

[yangjingbo]

my OS system already installs libzmq, why this problem happen?