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Re: [Qemu-devel] [PATCH 1/1] configure: robustify big/little check

From: Markus Armbruster
Subject: Re: [Qemu-devel] [PATCH 1/1] configure: robustify big/little check
Date: Wed, 28 May 2014 11:16:09 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)

Peter Maydell <address@hidden> writes:

> On 28 May 2014 09:46, Cornelia Huck <address@hidden> wrote:
>> The check for big or little endianness relies on grep reporting
>> match/non-match on the generated binary. If the user specified
>> --binary-files=without-match in their GREP_OPTIONS, this will fail.
>> Let's just explicitly specify --binary-files=binary, which will
>> override any user settings and do what we want.
> This grep option isn't specified by POSIX so I'm not sure all the hosts
> we build on will have it. Maybe it would be better to just unset
> GREP_OPTIONS at the top of configure ?

That's what autoconf does:

    # Unset more variables known to interfere with behavior of common tools.

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