all: migrate to gopkg.in/zeromq/goczmq.v4

cxx_zmq4_compat.go

@@ -10,7 +10,7 @@ import (
 	"context"
 	"net"
 
-	czmq4 "github.com/zeromq/goczmq"
+	czmq4 "gopkg.in/zeromq/goczmq.v4"
 )
 
 func NewCPair(ctx context.Context, opts ...czmq4.SockOption) Socket {
@@ -145,7 +145,7 @@ func (sck *csocket) SetOption(name string, value interface{}) error {
 		return nil
 	case OptionUnsubscribe:
 		topic := value.(string)
-		sck.sock.SetUnsubscribe(topic)
+		sck.sock.SetOption(czmq4.SockSetUnsubscribe(topic))
 		return nil
 	default:
 		panic("unknown set option name [" + name + "]")

go.mod

@@ -1,7 +1,8 @@
 module github.com/go-zeromq/zmq4
 
+go 1.12
+
 require (
-	github.com/pkg/errors v0.8.0
-	golang.org/x/net v0.0.0-20180629035331-4cb1c02c05b0
-	golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f
+	github.com/pkg/errors v0.8.1
+	golang.org/x/sync v0.0.0-20190423024810-112230192c58
 )

security/plain/plain_cxx_test.go

@@ -16,8 +16,8 @@ import (
 	"github.com/go-zeromq/zmq4"
 	"github.com/go-zeromq/zmq4/security/plain"
 	"github.com/pkg/errors"
-	czmq4 "github.com/zeromq/goczmq"
 	"golang.org/x/sync/errgroup"
+	czmq4 "gopkg.in/zeromq/goczmq.v4"
 )
 
 func TestMain(m *testing.M) {