bug#19302: 24.4.51; `date-to-time' fails after 2038

[Eli Zaretskii]

> Date: Tue, 09 Dec 2014 06:01:26 -0500
> From: Richard Stallman <rms@gnu.org>
> Cc: 19302@debbugs.gnu.org, beauchampgabriel@gmail.com
> 
>   > If I remember correctly, there are OS-es out there that have a 32-bit
>   > time_t?  
> 
> Apparently so -- that is why I suggest making Emacs use 64 bits
> even if the operating system uses 32 bits.

What do you do with time_t fields of 'struct stat', 'struct timeval',
and other structures used by library functions?  They will still wrap
around.