GNU bug report logs - #11067
diff-no-select assumes diff-command understands -L option

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Message #34 received at 11067 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Arni Magnusson <arnima <at> hafro.is>, Paul Eggert <eggert <at> cs.ucla.edu>,
	11067 <at> debbugs.gnu.org
Subject: Re: bug#11067: 24.0.94.1; diff-buffer-with-file
Date: Sat, 24 Mar 2012 14:27:03 -0400

Stefan Monnier wrote:

> Hmm... interesting.  I found the -L in Debian's Info page and it's still
> there in Debian's "diffutils-1:3.2-2".  So either it's a local addition
> done by Debian, or the -L is actually documented.

diffutils seem to be going backwards and forwards on this one, eg

http://lists.gnu.org/archive/html/bug-diffutils/2012-01/msg00009.html

Paul can probably tell us the current thinking...


Anyway, what about Solaris's diff, which has neither -L nor --label?

Why not test for this option, which Emacs presumably uses only for
cosmetic effect, before using it?

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