- add libc_hidden_def(clock_getres) as spotted by Ned Ludd

libc/sysdeps/linux/common/clock_getres.c

@@ -40,5 +40,5 @@ int clock_getres(clockid_t clock_id, struct timespec* res)
 
 	return retval;
 }
+endif
 libc_hidden_def(clock_getres)
-#endif