Re: new snapshot available: coreutils-7.6.63-addb6

[Jim Meyering]

Eric Blake wrote:
> Pádraig Brady <P <at> draigBrady.com> writes:
>
>> 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
>
> Bingo.  For FC5, I need to implement rpl_linkat in gnulib, which mimics the
> link_follow fallback used on systems that lack linkat altogether, if linkat
> (,AT_SYMLINK_FOLLOW) fails with EINVAL.  And probably enable rpl_linkat
> unconditionally at configure time for Linux, for the benefit of people that
> compiled against newer headers but run against an older kernel; the 
> replacement
> code would need a static variable that learns whether we expect success or
> failure, similar to how we've wrapped O_CLOEXEC support in recent modules when
> compiling against newer headers and older kernel.
>
> Jim, do you want to wait for me to get that done in gnulib, or do we just 
> state
> that since 8.0 will be beta that it is a known bug which will be fixed for 
> 8.1?

I'm ready to release today, and that failure is far enough out on
the fringe that I have no qualms.

This makes two known bugs.  The fix for the other will be
always-required l?getfilecon wrappers to avoid segfaulting
on old-kernel-munged disks and/or old versions of libselinux.