This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Re: Fifth draft of the Y2038 design document
On Wed, 22 Feb 2017, Paul Eggert wrote:
> One other question: how set-in-stone is this business about _TIME_BITS
> defaulting to 32-bit time_t?
A distribution migration to 64-bit time_t is likely to be hard (much
harder than the move to 64-bit off_t). We have no real idea of the extent
to which types involving time_t appear in the ABIs of third-party
libraries, file formats, etc. - and without such an idea and a clear way
in which distributions can make the transition, it would be irresponsible
to make such a change to the default.
For _FILE_OFFSET_BITS=64, someone needs to resurrect the old patch to
change the default, together with the analyses from past threads of how
for affected libraries it's generally now the default ABI used in
GNU/Linux distributions, and fix any other issues such as bug 14106 needed
for such a change to work without breaking things, causing linknamespace
failures etc.
--
Joseph S. Myers
joseph@codesourcery.com