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Re: [wdiff-bugs] mdiff crashes with exit status 139

From: François Pinard
Subject: Re: [wdiff-bugs] mdiff crashes with exit status 139
Date: Thu, 11 Jul 2013 12:53:48 -0400
User-agent: Gnus/5.130008 (Ma Gnus v0.8) Emacs/23.4 (gnu/linux)

Santiago Vila <address@hidden> frites:

> I've received a report from The Mayhem Team, Cylab, Carnegie Mellon
> University.  This is one of the 1182 bugs they found.

Wow!  Hopefully, not all in wdiff! :-)

> $ mdiff --expand-
> mdiff: ignoring option --tolerance (not implemented)
> Segmentation fault

> I have not packaged wdiff 1.2.1 for Debian yet, but the bug may
> be reproduced there as well.

If you allow me for a comment, *mdiff* was an experimental program, that
was distributed in pretest versions of Wdiff.  It was really useful to
me when I needed it, but it has limitations, like I vaguely remember
that in some cases, it may take more CPU that I would have wanted.

One year ago, I needed *mdiff* for a particular application, took a
quick dive into the program, and decided to rewrite a specialized
version of it in Python instead.  It was more efficient for me than to
resume *mdiff* work and develop in C, which is admittedly slower.

Unless the actual maintainers really want to push on *mdiff*, or users
really want to pull for it, we could drop the experiment, in my opinion.


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