I compiled one too with MingW64 and gcc-4.8.0
Only one glitch during the compilation (which lasts forever !) : there is a clash between eof() declared in texk/web/lib/lib.h and some other eof() in system header files.
I added :

#define eof weof

in texk/web/lib/lib.h and that is all.

I compiled a huge pile of (LaTeX, Tikz, OpenType Cambria, CambriaMath, Consolas fonts) slides with the resulting luatex.exe and didn't noticed any problems up to now.

Fabrice



2013/4/9 luigi scarso <luigi.scarso@gmail.com>
On Sat, Apr 6, 2013 at 10:42 AM, Patrick Gundlach <patrick@gundla.ch> wrote:
> Hi all,
>
> anybody got a 64 bit binary for windows (7) 64? I've got some problems with the current 32 bit binary and I was wondering if using a 64 bit binary would fix them.
I've one made with  x86_64-w64-mingw32 , gcc ver. 4.6.2



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luigi
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