[zebra 22927] "Can't set IP_RECVIF option" on Solaris 8

I finally have zebra 0.95 compiled on Solaris 8 and configured.  However, on
startup of 'ospfd' I get the following error:

2006/07/17 18:27:54 OSPF: Can't set IP_RECVIF option
2006/07/17 18:27:54 OSPF: ASBR[Status:1]: Update

I have two such zebra routers configured on the same VLAN.  However, they
never establish a neighbor relationship (show ip ospf neighbor gives me
nothing).  I'm thinking this could be due to Solaris's setsockopt call not
supporting this IP_RECVIF.

Is there a version out there that fully support Solaris 8?  Or is this
problem a known one that is related to something completely different?