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+2017-06-12  Joseph Myers  <joseph@codesourcery.com>
+
+	[BZ #21550]
+	* signal/signal.h (sigwait): Only declare if [__USE_POSIX199506].
+
 2017-06-12  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add