#1017 soap_bind fails to bind on IPv6

[Ottavio Campana]

I noticed that in my system (debian wheezy) soap_bind fails to correclty bind on dualstack IPv4/IPv6.

By digging in the code I think the wrong hints are passed to getaddrinfo. Passing PF_UNSPEC won't guarantee that an IPv6 socket will be use. By specifying PF_INET6, an IPv6 socket will be used. Since this code i conditioned with #ifdef WITH_IPV6 , I think that's the correct way to implement it

gSOAP version: 2.8.23