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FreeBSD_11 specific fix

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C11 mandates the definition of timespec_get() and TIME_UTC.
However, FreeBSD11 announce C11 compliance, but does not provifr timespec_get(),
breaking link stage for benchfn.
Since it does not provide TIME_UTC either, which is also required by C11,
test this macro: this will automatically rule out FreeBSD 11 for this code path
(it will use the backup C90 path instead, based on clock_t).

The issue seeems fixed in FreeBSD 12.
This commit is contained in:
Yann Collet
2019-04-10 15:22:18 -07:00
parent 2fa4f2e246
commit 885476fb5b
2 changed files with 5 additions and 3 deletions
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5
programs/timefn.h
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@ -57,9 +57,10 @@ extern "C" {
typedef PTime UTIL_time_t;
#define UTIL_TIME_INITIALIZER 0
#elif (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) /* C11 */)
#elif (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) /* C11 */) \
&& defined(TIME_UTC) /* C11 requires timespec_get, but FreeBSD 11 lacks it, while still claiming C11 compliance */
typedef struct timespec UTIL_time_t; /* C11 defines struct timespes within time.h */
typedef struct timespec UTIL_time_t;
#define UTIL_TIME_INITIALIZER { 0, 0 }
#else /* relies on standard C90 (note : clock_t measurements can be wrong when using multi-threading) */