client: Make auto_connect_localhost respect HAVE_IPv6 and OS_IS_WIN32
Previously, if built on Windows or without IPv6 support, the client would try to connect over IPv6 if auto_connect_localhost is enabled.
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
Previously, if built on Windows or without IPv6 support, the client would try to connect over IPv6 if auto_connect_localhost is enabled.