doc: OS X 10.11 lacked ns time functions
commit9a269bb3cd1d322a070ef0d6009c980e038e6332
authorPaul Eggert <eggert@cs.ucla.edu>
Tue, 18 Sep 2018 19:19:02 +0000 (18 12:19 -0700)
committerPaul Eggert <eggert@cs.ucla.edu>
Tue, 18 Sep 2018 19:23:23 +0000 (18 12:23 -0700)
treee2a39ecb278340d306977715a7871e08ff3834bf
parent36a092b8273a622b3b0a40798bf660f4201a2931
doc: OS X 10.11 lacked ns time functions

According to <https://github.com/zeromq/libzmq/issues/2175>,
nanosecond-resolution timestamp functions were introduced
in macOS 10.12, so document the last version (OS X 10.11)
where they were absent.
ChangeLog
doc/posix-functions/clock_getcpuclockid.texi
doc/posix-functions/clock_getres.texi
doc/posix-functions/clock_gettime.texi
doc/posix-functions/clock_nanosleep.texi
doc/posix-functions/clock_settime.texi
doc/posix-functions/timer_create.texi
doc/posix-functions/timer_delete.texi
doc/posix-functions/timer_getoverrun.texi
doc/posix-functions/timer_gettime.texi
doc/posix-functions/timer_settime.texi