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bug#23179: 25.0.92; Restore `M-,' to continue etags search

From: Eli Zaretskii
Subject: bug#23179: 25.0.92; Restore `M-,' to continue etags search
Date: Mon, 04 Apr 2016 18:03:13 +0300

> From: Dmitry Gutov <address@hidden>
> Date: Mon, 4 Apr 2016 13:46:19 +0300
> Cc: address@hidden
> On 04/04/2016 11:54 AM, Anders Lindgren wrote:
> > I just tried your `tags-find-regexp' on Windows, and it failed
> > miserably. It appears to be hanging, but after setting `debug-on-quit'
> > to t and pressing C-g, it always breaks when running an external "grep"
> > command. My conclusion is that starting "grep" on windows is very, very
> > slow compared to opening a temporary buffer and doing re-search-forward.
> AFAIK, Windows has higher process call overhead

Not in my experience, at least not significantly so.

> You might check which versions of 'find' and 'grep' you're using, 
> though: does M-x rgrep work all right? I remember there were some older 
> versions of these tools compiled for Windows, with pathological performance.

Ah, yes, that could also be the reason.  This port of GNU Findutils is


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