Undefined symbols for architecture x86_64:
"_ares_cancel", referenced from:
l003 in libgrpc_unsecure.a(grpc_ares_ev_driver_posix.o)
l004 in libgrpc_unsecure.a(grpc_ares_ev_driver_posix.o)
"_ares_destroy", referenced from:
l001 in libgrpc_unsecure.a(grpc_ares_ev_driver_posix.o)
"_ares_free_data", referenced from:
l005 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
l006 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_gethostbyname", referenced from:
l001 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
l005 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_getsock", referenced from:
l002 in libgrpc_unsecure.a(grpc_ares_ev_driver_posix.o)
"_ares_inet_ntop", referenced from:
l004 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_init", referenced from:
_grpc_ares_ev_driver_create in libgrpc_unsecure.a(grpc_ares_ev_driver_posix.o)
(maybe you meant: _grpc_resolver_dns_ares_init, _grpc_ares_init )
"_ares_library_cleanup", referenced from:
_grpc_ares_cleanup in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_library_init", referenced from:
_grpc_ares_init in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_parse_srv_reply", referenced from:
l005 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_parse_txt_reply_ext", referenced from:
l006 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_process_fd", referenced from:
l003 in libgrpc_unsecure.a(grpc_ares_ev_driver_posix.o)
l004 in libgrpc_unsecure.a(grpc_ares_ev_driver_posix.o)
"_ares_query", referenced from:
l001 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_search", referenced from:
l001 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_set_servers_ports", referenced from:
l001 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
"_ares_strerror", referenced from:
l001 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
_grpc_ares_init in libgrpc_unsecure.a(grpc_ares_wrapper.o)
l004 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
l005 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
l006 in libgrpc_unsecure.a(grpc_ares_wrapper.o)
_grpc_ares_ev_driver_create in libgrpc_unsecure.a(grpc_ares_ev_driver_posix.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [paddle/fluid/framework/concurrency_test] Error 1
