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date: make %N work without -lrt on glibc

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-06-18 02:55:48 +02:00
parent 5b1dfe609c
commit 4ebdae3777
1 changed files with 6 additions and 1 deletions
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7
coreutils/date.c
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@ -93,6 +93,9 @@
//config: MMDDhhmm[[YY]YY][.ss] format. //config: MMDDhhmm[[YY]YY][.ss] format.
#include "libbb.h" #include "libbb.h"
#if ENABLE_FEATURE_DATE_NANO
# include <sys/syscall.h>
#endif
enum { enum {
OPT_RFC2822 = (1 << 0), /* R */ OPT_RFC2822 = (1 << 0), /* R */
@ -208,7 +211,9 @@ int date_main(int argc UNUSED_PARAM, char **argv)
#endif #endif
} else { } else {
#if ENABLE_FEATURE_DATE_NANO #if ENABLE_FEATURE_DATE_NANO
clock_gettime(CLOCK_REALTIME, &ts); /* libc has incredibly messy way of doing this,
* typically requiring -lrt. We just skip all this mess */
syscall(__NR_clock_gettime, CLOCK_REALTIME, &ts);
#else #else
time(&ts.tv_sec); time(&ts.tv_sec);
#endif #endif