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date: make %N work without -lrt on glibc
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -93,6 +93,9 @@
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//config: MMDDhhmm[[YY]YY][.ss] format.
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#include "libbb.h"
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#if ENABLE_FEATURE_DATE_NANO
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# include <sys/syscall.h>
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#endif
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enum {
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OPT_RFC2822 = (1 << 0), /* R */
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@ -208,7 +211,9 @@ int date_main(int argc UNUSED_PARAM, char **argv)
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#endif
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} else {
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#if ENABLE_FEATURE_DATE_NANO
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clock_gettime(CLOCK_REALTIME, &ts);
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/* libc has incredibly messy way of doing this,
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* typically requiring -lrt. We just skip all this mess */
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syscall(__NR_clock_gettime, CLOCK_REALTIME, &ts);
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#else
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time(&ts.tv_sec);
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#endif
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