[Pacemaker] unix socket corosync.ipc not created by corosync 2.3.3 for pacemakerd 1.1

[Stefan Bauer]

It seems that pacemakerd 1.1 is trying to connect to unix socket
corosync.ipc but that is not provided by corosync 2.3.3:

connect(4, {sa_family=AF_FILE, path=@"corosync.ipc"}, 110) = -1
ECONNREFUSED (Connection refused)

With the corosync release from the 1.x branch its available:

root at wrk1:/home/stefan# lsof | grep corosync | grep @
corosync  4327             root    7u     unix 0xffff8800a3f38280
0t0      63921 @corosync.ipc
corosync  4327             root   13u     unix 0xffff8800a40f7200
0t0      63981 @corosync.ipc
corosync  4327             root   14u     unix 0xffff8800ae8aca40
0t0      63982 @corosync.ipc

But not with 2.3:

root at debianbuild:/var/lib/heartbeat/cores/root# lsof | grep corosync |
grep corosync.ipc
root at debianbuild:/var/lib/heartbeat/cores/root# 

What do i miss?

Stefan