Cannot use ZeroMQ 4.2 sockopt ZMQ_ROUTER_HANDOVER

[WindzCUHK]

I try to use the new constant ZMQ_ROUTER_HANDOVER in zeromq 4.1+ inside method zmq_setsockopt(), but it throw Invalid argument error to me.

I inserted a line in binding.cc to make it works. Is it the suggested way to do so?

• orginal code

  
  ...
  opts_int.insert(42); // ZMQ_IPV6

opts_int64.insert(3); // ZMQ_SWAP ...

- code after insert
```c
...
opts_int.insert(42); // ZMQ_IPV6
opts_int.insert(56); // ZMQ_ROUTER_HANDOVER

opts_int64.insert(3); // ZMQ_SWAP
...

[lgeiger]

You can try zeromq.js it has the same API, bundles a prebuilt version of zeromq 4.2.2 and has support for ZMQ_ROUTER_HANDOVER.