At some point in the player client lib (client_libs/libplayerc/
client.c around line 295) a check for AF_INET is performed. For IPv6
connections, the client exists with "unsupported internet address
family". Is player unable to manage IPv6 connections or is this a
legacy check simply to ensure IP based connections?
The problem appeared with the example0 on Mac OS X 10.5 "Leopard". On
this system, the hardcoded hostname "localhost" resolves to the IPv6
address "::1" in the first place, resulting in an AF_INET6 address
family which != AF_INET and though preventing the connection.
If one changes the example0 to make a connection to "127.0.0.1"
instead of "localhost", an IPv4 connection is made an everything works