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Date: Sun, 17 Jun 2007 01:14:30 -0400
From: Charles Wilson <cygwin AT cwilson DOT fastmail DOT fm>
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Subject: Re: zip could not handle files above 2GB?
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Robert Pendell wrote:
> Actually if the cygwin version of zip is based off of
> info-zip then it is a known limitation of that library.  It
> has a theoretical limit of 4GB for the zip filesize but
> commonly had issues with accessing files beyond the 2GB mark.
> This is documented on the info-zip website.  It can be
> corrected as other applications have come up with ways to
> allow zip files above and beyond the 4GB limit that 32-bit
> code imposes.

This is true, but I do not plan to do any rewriting of Info-Zip's code; 
the web page there: http://www.info-zip.org/FAQ.html#limits explains a 
lot of the limitations and caveats with respect to large files.

OTOH, rumor has it that 7-zip supports large files, and better 
compression. (However, in a cygwin context it does not preserve 
permisions, so you have to use:
   tar --with-compression-program=p7zip ....
instead.

To that end, please try:
http://cygutils.fruitbat.org/ITP/p7zip-4.47-1.tar.bz2

(I'll post an ITP on the cygwin-apps list)

--
Chuck


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