[Libvir] 17/22 getaddrinfo

This enables the use of getaddrinfo under Windows (requires inclusion of the "getaddrinfo.h" header from gnulib). AI_ADDRCONFIG isn't supported by the gnulib emulation of getaddrinfo. There is some controversy as to whether this flag actually does anything useful. http://www.google.co.uk/search?q=AI_ADDRCONFIG Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903