Hmm..
Looking at /usr/include/time.h on ubuntu, I see the following:
#if (!defined __timespec_defined \
&& ((defined _TIME_H \
&& (defined __USE_POSIX199309 \
|| defined __USE_ISOC11)) \
|| defined __need_timespec))
# define __timespec_defined 1
…
# ifdef __USE_ISOC11
/* Set TS to calendar time based in time base BASE. */
extern int timespec_get (struct timespec *__ts, int __base)
__THROW __nonnull ((1));
# endif
However, on centos6, I see:
#if !defined __timespec_defined && \
((defined _TIME_H && \
(defined __USE_POSIX199309 || defined __USE_MISC)) || \
defined __need_timespec)
# define __timespec_defined 1
No definition for timespec_get().
So, the difference between the two looks like it’s the dependence of
__USE_ISOC11.
The quick fix would be to depend on __USE_ISOC11 (or even better
__timespec_defined && __USE_ISOC11), but I’m not sure how portable it is.
Of course, the most fool-proof solution would be a configure script check, but
it could be redundant.
George
> On Nov 10, 2017, at 2:41 PM, Nicolai Hähnle <nhaeh...@gmail.com> wrote:
>
> On 10.11.2017 19:20, Kyriazis, George wrote:
>> Hello Nicolai,
>> Your commit e3a8013 (util/u_queue: add util_queue_fence_wait_timeout),
>> breaks the centos6 build.
>> Specifically, I am getting:
>> CC libmesautil_la-u_queue.lo
>> ../../../src/util/u_queue.c: In function '_util_queue_fence_wait_timeout':
>> ../../../src/util/u_queue.c:173:7: error: implicit declaration of function
>> 'timespec_get' [-Werror=implicit-function-declaration]
>> timespec_get(&ts, TIME_UTC);
>> ^
>> cc1: some warnings being treated as errors
>
> Thanks for the heads up. That's annoying. Any good ideas for how to test for
> timespec_get availability? Some configure script check, I guess?
>
> Cheers,
> Nicolai
>
>
>> Thanks!
>> George
>
>
> --
> Lerne, wie die Welt wirklich ist,
> Aber vergiss niemals, wie sie sein sollte.
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