Only use AI_ADDRCONF if availible
Only use AI_ADDRCONF if availible

AI_ADDRCONF not availible on winXP, so this fixes windows build.

SPICE/spice,freedesktop-unofficial-mirror/spice__spice,elmarco/spice,dezelin/spice,mathslinux/spice,mathslinux/spice,alon/spice-server,dezelin/spice,fgouget/spice,fgouget/spice,alon/spice-server,SPICE/spice,fgouget/spice,mathslinux/spice,Fantu/spice,alon/spice-server,elmarco/spice,ya-mouse/spice,fgouget/spice,alon/spice-server,dezelin/spice,Fantu/spice,ya-mouse/spice,virtualAMP/spiceplay,mathslinux/spice,virtualAMP/spiceplay,ya-mouse/spice,virtualAMP/spiceplay,Fantu/spice,dezelin/spice,elmarco/spice,SPICE/spice,freedesktop-unofficial-mirror/spice__spice,Fantu/spice,alon/spice-server,mathslinux/spice,freedesktop-unofficial-mirror/spice__spice,elmarco/spice,virtualAMP/spiceplay,elmarco/spice,freedesktop-unofficial-mirror/spice__spice,freedesktop-unofficial-mirror/spice__spice,dezelin/spice