Implemented getaddrinfo(), including full mapping of struct addrinfo
between UNIX and Windows. Based on a patch by Mike Hearn.

diff --git a/configure b/configure
index e80550a..7828d85 100755
--- a/configure
+++ b/configure
@@ -14505,6 +14505,7 @@
 
 
 
+
 for ac_func in \
 	_lwp_create \
 	_lwp_self \
@@ -14527,6 +14528,7 @@
 	ftruncate \
 	futimes \
 	futimesat \
+	getaddrinfo \
 	getnetbyname \
 	getopt_long \
 	getpagesize \