On 07/03/2017 15:28, Chris Ross wrote: > >> On Jul 3, 2017, at 14:46, Kurt Jaeger <[email protected]> wrote: >> >> Use __FreeBSD_version from sys/param.h: >> >> https://www.freebsd.org/doc/en_US.ISO8859-1/books/porters-handbook/versions.html > > Thanks. That looks great. Also, for my specific case of the addition of > clock_nanosleep(), it looks from time.h like I could use "__POSIX_VISIBLE >= > 200112”. Maybe that isn’t safe, since later looking at time.h on 11.0 and on > 11.1, the latter has a definition for clock_nanosleep() in that block, but > the former does not.
__POSIX_VISIBLE has a different purpose and can't be used for this. It's part of a way for the application to request a strict namespace of certain versions of POSIX, ANSI C, etc. > Yeah, digging around it appears that stable/11/sys/sys/param.h at r316498 > had __FreeBSD_version at 1100512, and it was raised to 1100513 in revision > 318197. And, clock_nanosleep was MFC’d into 11-stable in-between the two, at > revision 317618. So, not a precise match there, but >= 1100513 should be > safe. Yes, this is exactly what you want. Actually, what you /really/ want is for the committer to remember to bump __FreeBSD_version when he added the call, but I forgot. :( Cheers, Eric _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
