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Re: new snapshot available: coreutils-7.6.63-addb6

From: Jim Meyering
Subject: Re: new snapshot available: coreutils-7.6.63-addb6
Date: Tue, 06 Oct 2009 10:53:39 +0200

Eric Blake wrote:
> According to Pádraig Brady on 10/5/2009 3:53 PM:
>>>>> This is a new test, but FC5 is soooo old,
>>>>> that I'm not sure it's worth worrying about.
>>>> March 2006?
>>> The failure is probably a function of the kernel.
>>> Which is it?
>> In summary this is what fails:
>> $ touch a
>> $ ln -s a symlink
>> $ ln -L symlink hardlink
>> ln: creating hard link `hardlink' => `symlink': Invalid argument
>> `man linkat` says that AT_SYMLINK_FOLLOW is only supported since 2.6.18
>> and my FC5 system is 2.6.17
> This should fix it.  I don't have access to FC5, but I tested the new code
> path by priming the cache (gl_cv_func_linkat_follow=runtime ./configure)
> along with a temporary setting of have_follow_really=-1 in linkat.c.  I
> also verified that the replacement is not picked up on cygwin 1.7, where
> AT_SYMLINK_FOLLOW was implemented at the same time as linkat.
> The patch copies from areadlink.c, as well as link_follow earlier in
> linkat.c, to create two new fd-relative helpers.  For now, I didn't see
> any reason to expose them, but areadlinkat may someday be worth making
> into a full-blown module.

Wow, that was quick.  Thanks.
I should have read this first.

I was just reviewing the changes in gnulib and
see a few that should be included in the imminent coreutils
beta release, so will probably take this one, too.

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