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Re: [PATCH 3/5] Linux: Emulate fchmodat with AT_SYMLINK_NOFOLLOW using O_PATH [BZ #14578]

* Paul Eggert:

> On 2/9/20 12:57 AM, Florian Weimer wrote:
>> What do you think about introducing new symbol versions vs keeping
>> things as they are in the patch today?
>
> I'm not quite following the relationship between the two
> alternatives. Isn't the symbol version independent of whether we
> keep things as they are now, or install the patch that you proposed,
> or install that patch with my further suggestions?  That is, I don't
> see why the patch (or patch variant) would require us to change
> symbol versions.

If these functions are now going to be used widely, introducing a new
symbol version at the time of the bug fix ensures that applications do
not accidentally run on glibc versions which lack this change, where
they might fail in obscure ways.
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