How to add third party C library to tensorflow?

I want to add a third party C library to tensorflow so that I can use it in one of the examples. There don't seem to be any examples to follow, so any help would be appreciated.

Here's my work using event2 as a third party C library.

I created 'ln -s' in tensorflow / third_party to provide event2 / headers:

ls -al ~/code/tensorflow/third_party/event2
lrwxr-xr-x  1 XXXX  staff  25 May 17 16:03 ~/code/tensorflow/third_party/event2 -> /usr/local/include/event2

/usr/local/include> ls event2
BUILD                bufferevent_struct.h event_compat.h       listener.h           thread.h
buffer.h             dns.h                event_struct.h       rpc.h                util.h
buffer_compat.h      dns_compat.h         http.h               rpc_compat.h         visibility.h
bufferevent.h        dns_struct.h         http_compat.h        rpc_struct.h
bufferevent_compat.h event-config.h       http_struct.h        tag.h
bufferevent_ssl.h    event.h              keyvalq_struct.h     tag_compat.h

      

        
        
        
      

    

THIRD_PARTY / event2 / BUILD:

licenses(["notice"])

cc_library(
    name = "event2",
    srcs = glob( [ "*.h" ] ),
    visibility = [ "//visibility:public" ],
)

      

        
        
        
      

    

In tensorflow / examples / label_image / BUILD, I added a link to libevent and my test files that use the events2 library:

cc_binary(
    name = "label_image",
    srcs = [
        "main.cc",
        "my_new_file_using_events.c",
        "my_new_file_using_events.h",
    ],
    linkopts = ["-lm", ],
    copts = [ "-Ithird_party", ],
    deps = [
        "//tensorflow/cc:cc_ops",
        "//tensorflow/core:framework_internal",
        "//tensorflow/core:tensorflow",
        "//third_party/event2:event2",
    ],
)

      

        
        
        
      

    

It compiles fine, but when I run the binary, I get the following errors:

dyld: lazy symbol binding failed: Symbol not found: _event_base_new
  Referenced from: /Users/XXXX/code/tensorflow/bazel-bin/tensorflow/examples/label_image/label_image
  Expected in: flat namespace

dyld: Symbol not found: _event_base_new
  Referenced from: /Users/XXXX/code/tensorflow/bazel-bin/tensorflow/examples/label_image/label_image
  Expected in: flat namespace

[1]    41395 trace trap  bazel-bin/tensorflow/examples/label_image/label_image

      

        
        
        
      

    

libevent.a, libevent.dylib and other libevent * libs are in / usr / local / lib. according to nm, event_base is undefined.

nm -f label_image | grep event_base
  U _event_base_dispatch
  U _event_base_new

      

        
        
        
      

    

How do I resolve this binding error? Thank.