Windows + IP6 progress

I have just managed to get pg server and client (cvs tip) talking IPv6 
on Windows. :-)

1. Building   - added in library in configure.in:                  AC_CHECK_LIB(ws2_32, main)   - faked out getaddrinfo
testin resulting configure and force answer 
 
to "yes"   - added these lines to src/include/port/win32/sys/socket.h:       #include <ws2tcpip.h>       #define
gai_strerrorA(err)"undetermined getaddrinfo error"
 
   After installation and initdb, I edited postgresql.conf to set 
listen_addresses to '127.0.0.1, ::1' just to make sure what we were getting.

2. Running without IPv6 driver installed.   The build works, although it complains about IPv6 addresses. But I 
could run it with IPv4 addresses quite happily - the IPv6 addresses just 
fail, but they don't stop us running.

3. Running with IPv6 driver installed  Now the build does not complain about IPv6 addresses (either in 
pg_hba.conf or postgresql.conf)  And this command works: psql -h ::1 -l


So the remaining questions are:
. what do we do about the getaddrinfo test? I'm almost inclined not to 
do it on windows, and assume that if we have ws2_32.dll we have it.
. what to do about the gai_strerror mess (import our own but leave out 
our own getaddrinfo?)
. make sure that this doesn't break less modern Windows platforms than 
mine (XP Pro SP1). How ubiquitous is ws2_32.dll?

I have asked a few people to test this build. I don't want to publish 
its location openly, but if anyone wants to help they can drop me an 
email. Alternatively, some kind person could provide a site on a nice 
fat pipe for an 18Mb download.


cheers

andrew