Implement C11 annex K?

[Joseph S. Myers]

On Mon, 11 Aug 2014, Paul Eggert wrote:

> Joseph S. Myers wrote:
> > * Some functions will need versions for _FILE_OFFSET_BITS=64 /
> > _LARGEFILE64_SOURCE (e.g. tmpfile, fopen, freopen have such versions, so
> > the _s variants of those functions should also have such versions).
> 
> Also, don't provide _FILE_OFFSET_BITS=32 versions.  Just support
> _FILE_OFFSET_BITS=64, and make it a compile- or link-time error to try to use
> Annex K with _FILE_OFFSET_BITS=32.
> 
> Regardless of whether one thinks Annex K is a good idea, its stated goal is
> more-reliable software.  Requiring it to support _FILE_OFFSET_BITS=32 (which
> is deliberately *unreliable*) would be counterproductive make-work.

One goal is retrofitting large bodies of existing code with local changes 
(for which adding a requirement to use _FILE_OFFSET_BITS=64 seems 
unhelpful).

-- 
Joseph S. Myers
joseph@codesourcery.com