compiling native libpq...

From: "Jason Tishler" <Jason.Tishler@dothill.com>

>> I would like to learn to fish, though rather
>> than just have the fish so I can make my own libpq.dll for any new
version
> If you install MSVS 6.0, then all you need to do is:
>     $ nmake -f win32.mak

i've tried that some time ago. it worked ok until i tried to fetch large
text fields. some investigation shown: it appears that recv() and send() do
not set errno. so pqReadData didn't seen EWOULDBLOCK and complained about
failed read(). replacing errno with WSAGetLastError() fixed that.

/Dmitry