compile failure on cvs tip --with-krb5

This change (I'm sure this will wrap poorly -- sorry):
http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/include/libpq/pqcomm.h.diff?r1=1.85&r2=1.86

modified SockAddr, but no corresponding change was made here 
(fe-auth.c:612):
  case AUTH_REQ_KRB5:
#ifdef KRB5  if (pg_krb5_sendauth(PQerrormsg, conn->sock, &conn->laddr.in,                       &conn->raddr.in,
               hostname) != STATUS_OK)
 

It's not obvious to me what the change ought to be though.

Joe