[PATCH] Y2038: provide kernel support indication

[Florian Weimer]

* Albert ARIBAUD:

> - one new boolean for every new feature, which libc can read/write.
>   Reading happens every time the feature is used.
>   Writing happens very rarely, once when first first using / testing for
>   the feature (e.g. at application start), once if using the feature
>   fails (e.g. a syscall returns ENOSYS).
>
> - two accessors (getter/setter) for every new feature if it must be
>   read/set from another glibc library than libc (e.g. librt).

I'm still surprised that this is needed.  Why can't applications call
the function in question and react to a well-documented error code?

Thanks,
Florian