[PATCH 1/2] Y2038: add type __time64_t

[Paul Eggert]

On 06/13/2018 09:39 AM, Joseph Myers wrote:
> Whatever the name, it needs to be clear that this macro relates to the
> time_t used by default (unsuffixed) functions in this glibc -*not*  
> necessarily the time_t for the current compilation.

OK, in that case perhaps it's better to stick to __TIMESIZE, as the 
_WIDTH names are intended to apply to the current compilation. (Sorry 
about confusing C11 with TS 18661-1.)