Add Linux compatibility support for SC_NPROCESSORS_{CONF,ONLN} as _SC_NPROCESSORS_{CONF,ONLN}

The goal of this change is to make it easier to use getconf to query
the number of available processors.

Sadly it's unclear per POSIX, which form (with a preceding _ or
lacking it) is correct. I will bring this up on the Austin Group list so
this point is clarified for implementors that might rely on this getconf
variable in future POSIX spec versions.

This is something I noticed when trying to import GoogleTest to FreeBSD
as one of the CI scripts uses this variable on Linux.

MFC after:	2 weeks
Approved by:	emaste (mentor)
Differential Revision:	https://reviews.freebsd.org/D18640
This commit is contained in:
ngie 2019-01-11 22:28:18 +00:00
parent ae3feafabc
commit ef6c1108ed

View File

@ -63,6 +63,8 @@ SYMLOOP_MAX, _SC_SYMLOOP_MAX
TIMER_MAX, _SC_TIMER_MAX
TTY_NAME_MAX, _SC_TTY_NAME_MAX
TZNAME_MAX, _SC_TZNAME_MAX
_NPROCESSORS_CONF, _SC_NPROCESSORS_CONF
_NPROCESSORS_ONLN, _SC_NPROCESSORS_ONLN
_POSIX2_CHAR_TERM, _SC_2_CHAR_TERM
_POSIX2_C_BIND, _SC_2_C_BIND
_POSIX2_C_DEV, _SC_2_C_DEV