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Re: file uncompression with native Windows Emacs

From: Will Parsons
Subject: Re: file uncompression with native Windows Emacs
Date: Fri, 9 Dec 2016 21:33:00 -0500
User-agent: slrn/1.0.2 (FreeBSD)

On Friday,  9 Dec 2016 10:10 AM -0500, B. T. Raven wrote:
> On 12/8/2016 19:29, Will Parsons wrote:
>> I'm confused about what I should expect for file uncompression with
>> native Windows Emacs.  I'm running:
>> GNU Emacs 25.1.1 (i686-w64-mingw32)
>> Curiously, if I visit a file compressed with bzip2, Emacs has no
>> problem opening it, but if I visit a file compressed with gzip, Emacs
>> complains that "Uncompression program 'gzip' not found".
>> How is this supposed to work?  I don't see any compression binaries
>> packages in the Emacs installation directory, but I do have an
>> ezwinports directory that contains bzip2 utilities, so perhaps Emacs
>> is using that (but how does it know?)  If ezwinports is the source of
>> bzip2 for Emacs, I don't see similar gzip utilities, so I'm quite
>> confused.
> ezwinports is probably in your path. Type "where bzip2.exe" to see if 
> this is so. A couple of gzip binaries for w32 are here:

You're absolutely right.

>   ;; put them one of them in the same directory 
> where bzip2 is now and emacs should find it.

I downloaded a Windows version of the gzip utilities from gnuwin32 and
put them in a directory in my PATH, and now Emacs has no difficulty
opening them.  I had expected a more "official" way of handling
(de)compression, but I'm happy.  Thanks!


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