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Re: [Xen-devel] [PATCH] xen/Makefile: use CC --version instead of -v

To: Robert Buchholz <rbu@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH] xen/Makefile: use CC --version instead of -v
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Wed, 27 Aug 2008 11:33:59 +0100
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On 27/8/08 11:12, "Robert Buchholz" <rbu@xxxxxxxxxx> wrote:

> Btw, what is the reason for ".*" in the first place?

Lost somewhat in the mists of time, but I think some vendor packages
(possibly Red Hat iirc) stuck something in between 'gcc' and 'version'.

Another tactic might be 'tail -n1'. I can't remember if the version is
always the last line of 'gcc -v' output though.

Hmmm... actually that is what Linux does (tail -n 1). So let's go with that.

 -- Keir

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