Use IPV6_JOIN_GROUP

posix/JackNetUnixSocket.cpp

@@ -27,14 +27,6 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 #include <unistd.h>
 #include <fcntl.h>
 
-// define IPV6_ADD_MEMBERSHIP for Mac OS X
-#ifndef IPV6_ADD_MEMBERSHIP
-#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
-#endif
-#ifndef IPV6_DROP_MEMBERSHIP
-#define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
-#endif
-
 using namespace std;
 
 // See RFC 3493; The Open Group Base Specifications Issue 6 IEEE Std 1003.1, 2004 Edition
@@ -460,7 +452,7 @@ namespace Jack
                 memcpy(&mreq6.ipv6mr_multiaddr,addr,sizeof(in6_addr));
                 mreq6.ipv6mr_interface = 0;
                 level = IPPROTO_IPV6;
-                option = IPV6_ADD_MEMBERSHIP;
+                option = IPV6_JOIN_GROUP;
                 mreq = &mreq6;
                 length = sizeof(ipv6_mreq);
             } else {