The different clocks are still optional.
Closes: <https://bugzilla.kernel.org/show_bug.cgi?id=218452>
Fixes: 4131356cdab8 ("man*/, man-pages.7: VERSIONS, STANDARDS, HISTORY: Reorganize sections")
Reported-by: Enrique Garcia <cquike@arcor.de>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
On POSIX systems on which these functions are available, the symbol
.B _POSIX_TIMERS
is defined in \fI<unistd.h>\fP to a value greater than 0.
+POSIX.1-2008 makes these functions mandatory.
+.P
The symbols
.BR _POSIX_MONOTONIC_CLOCK ,
.BR _POSIX_CPUTIME ,
are available.
(See also
.BR sysconf (3).)
-POSIX.1-2008 makes these APIs mandatory.
.\"
.SS Historical note for SMP systems
Before Linux added kernel support for