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avoid breakage if somebody wrongly defines empty feature test macros

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Rich Felker
2012-11-01 03:49:43 -04:00
parent 18c0e02e2b
commit b367ab15fa
2 changed files with 3 additions and 3 deletions
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include/unistd.h
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@ -149,7 +149,7 @@ void swab(const void *__restrict, void *__restrict, ssize_t);
#endif
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \
|| (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE < 700)
|| (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
int usleep(unsigned);
unsigned ualarm(unsigned, unsigned);
#endif