[avr-gcc-list] How to rebuild AVR-GCC for Windows?

[Bob Paddock]

I want to build GCC 3.4.4/Binutils 2.16.1/AVR-LIBC 1.4
as I need to use the Tiny2313, Mega164, and Mega325.
Building all of these would be no problem for me on
my Linux box at home.  Alas the power's-that-be here
at work won't let me use Linux; "We are a windows
shop here" I was told. :-(

At any rate I was trying to find some instructions
on how to build a Windows version of AVR-GCC using
Cygwin and/or MingW but I have not found such a document
can some one point me to one please?

I think I have everything in hand the GCC-3.4.4 source,
Binutils 2.16.1, AVR-LIBC 1.4, and Joerg Wunsch's latests
FreeBSD patch file for the newer devices, cygwin and mingw,
anything else needed?

When I was downloading GCC 3.4.4 sources I saw there was
a 3.4.5, any reason to use that?  I want to avoid 4.x.x
for the moment.