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Re: Sharing of bits/fcntl.h on Linux (SPARC, x86)
On Tue, 23 Oct 2012, Andreas Jaeger wrote:
> On 10/23/2012 08:26 PM, Roland McGrath wrote:
> > > -#if defined __USE_XOPEN || defined __USE_XOPEN2K
> > > /* The Single Unix specification says that some more types are
> > > available here. */
> >
> > Update this comment. SUS is relevant to those feature test macros, not to
> > anything else. It should say "POSIX.1-yyyy says that these types are
> > defined here", for whatever yyyy is appropriate (and an exact citation
> > wouldn't hurt). Joseph said that "newer POSIX" changed the requirement
> > about this, but I don't know the specifics of what he was referring to.
>
> Joseph, what exactly should I reference here?
POSIX.1, 2001 edition specifies that the types are present. Previous
editions of POSIX reserve the *_t suffix and so permit the types to be
defined, and in glibc we choose to make headers self-contained in that way
(defining all the types that the header is specified to use) when
permitted.
http://pubs.opengroup.org/onlinepubs/007904975/basedefs/fcntl.h.html
--
Joseph S. Myers
joseph@codesourcery.com