Re: POSIX most likely will require a new -C option for 'sort'

[Jim Meyering]

Paul Eggert <address@hidden> wrote:
> <http://www.opengroup.org/austin/mailarchives/ag/msg10185.html>
> suggests that the next edition of POSIX will require 'sort' to support
> a new -C option.  There's no guarantee of this new requirement, but at
> this point I think we should probably just put in -C.  Here is a
> proposed patch.
>
> 2007-01-21  Paul Eggert  <address@hidden>
>
>       * NEWS: New option sort -C, proposed by XCU ERN 127, which looks
>       like it will be approved.  Also add --check=quiet, --check=silent
>       as long aliases, and --check=diagnose-first as an alias for -c.
>       * doc/coreutils.texi (sort invocation): Document this.
>       Also, mention that sort -c can take at most one file.
>       * src/sort.c: Implement this.
>       Include argmatch.h.
>       (usage): Document the change.
>       (CHECK_OPTION): New constant.
>       (long_options): --check now takes an optional argument, and is now
>       treated differently from 'c'.
>       (check_args, check_types): New constant arrays.
>       (check): New arg CHECKONLY, which suppresses diagnostic if -C.
>       (main): Parse the new options.
>       * tests/sort/Test.pm (02d, 02d, incompat5, incompat6):
>       New tests for -C.

Thanks, Paul.
I've applied that.