See:
http://www.pasc.org/interps/unofficial/db/p1003.1c/pasc-1003.1c-46.html
http://www.pasc.org/interps/unofficial/db/p1003.1/pasc-1003.1-86.html
https://www.opengroup.org/sophocles/show_mail.tpl?CALLER=index.tpl&source=L&listname=austin-group-l&id=17302
(Geoff Clare, austin-group-l, 9 Mar 2012)
+2012-03-09 Joseph Myers <joseph@codesourcery.com>
+
+ * sysdeps/pthread/pthread.h (__need_clockid_t, __need_timespec):
+ Do not define before including <time.h>.
+
2012-03-08 David S. Miller <davem@davemloft.net>
* sysdeps/unix/sysv/linux/sparc/sem_post.c: Update copyright year.
#include <features.h>
#include <endian.h>
#include <sched.h>
-#ifdef __USE_XOPEN2K
-# define __need_clockid_t
-#endif
-#define __need_timespec
#include <time.h>
#include <bits/pthreadtypes.h>