Index: include/time.h
===================================================================
--- include/time.h
+++ include/time.h
@@ -207,9 +207,14 @@
 #include <xlocale/_time.h>
 #endif
 
+#if (defined(__ISO_C_VISIBLE) && __ISO_C_VISIBLE >= 2011) || \
+    (defined(cplusplus) && cplusplus >= 201703) || \
+    defined(__BSD_VISIBLE)
+#include <sys/_timespec.h>
 /* ISO/IEC 9899:201x 7.27.2.5 The timespec_get function */
 #define TIME_UTC	1	/* time elapsed since epoch */
 int timespec_get(struct timespec *ts, int base);
+#endif
 
 __END_DECLS