Bruno Haible wrote:
What would be the benefit of doing so in gnulib? That some, but not all, programs of a Linux distro can claim Y2038-proof-ness before all the rest?
Basically that, yes, though the benefit is not limited to Linux kernels. It should work for FreeBSD too. (FreeBSD i386 still hasn't decided what do to about Y2038, I think.) Admittedly this is not that high a priority.