[LTP] nanosleep: use POSIX runtime detection for CLOCK_MONOTONIC

[Andrea Cervesato]

Hi Petr,

> I'd hope agent would find other '#ifdef _POSIX_MONOTONIC_CLOCK' use without
> <unistd.h> which is in
> testcases/open_posix_testsuite/conformance/interfaces/clock_settime/helpers.h

It's one rule behind to make agent discovering this. There's no rule
in the actually c-tests.md agent configuration about this particular
case. I personally never add any include to the file if it's imported
already from other headers.

But we know that everyone has their own opiinon when it comes to C :-)

Should we add a rule to the agent spotting/ignoring these corner cases?

--
Andrea Cervesato
SUSE QE Automation Engineer Linux
andrea.cervesato@suse.com