On Sat, 29 Jan 2000, John Polstra wrote:
> In revision 1.230 of src/sys/i386/conf/GENERIC, jkh added:
>
> options P1003_1B #Posix P1003_1B real-time extentions
> options _KPOSIX_PRIORITY_SCHEDULING
> options _KPOSIX_VERSION=199309L
>
> But I think the definition of _KPOSIX_VERSION is redundant, because it
> is already the default in src/sys/sys/param.h:
That particular definition is redundant, but we really ought to support
POSIX.1-1996, and this support should not be optional. The ifdefs are
messy enough when it is non-optional. It's a historical accident that
some parts of the support (sys/posix4) are controlled by twisty mazes
of options while other, larger parts (vfs_aio) are standard. sys/posix4
was developed in an optional module which hasn't been committed to
FreeBSD, and twisty options are obviously required to putting some
features in the kernel a proper and some in the module.
Bruce
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