Re: etags test is broken on MS-Windows

[Eli Zaretskii <eliz@gnu.org>]

> Date: Thu, 21 May 2015 19:49:22 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: eggert@cs.ucla.edu, emacs-devel@gnu.org
> 
> > >Now, these 3 files have exactly identical contents, and the _only_
> > >difference between the first 2 and the 3rd is that the latter is
> > >gzip-compressed.  So that should be the only reason why all its line
> > >counts are off by 1, and its byte counts are all off by 73, which just
> > >happens to be the length of the first line of the (uncompressed) file.
> > 
> > This is a bug.
> > 
> > >So could it be that rewinding a 'popen'-created stream doesn't work
> > >correctly on GNU/Linux as well?  If so, we will have to make changes
> > >in etags to not do that, I think, and instead reuse the already-read
> > >stuff as needed.
> > 
> > It could well be.  It may have happened that, when I checked that the
> > TAGS files were the same, I just looked at them without running diff and
> > I missed this discrepancy.
> 
> After thinking a bit about the alternative solution, I concluded that
> the simplest will be to decompress to a temporary file and read from
> there.  Does the patch below look OK?  Or can someone think about a
> more elegant way of solving this?

No comments, so I pushed these changes.