#define OS_O_DIRECT O_DIRECT
#endif
+#ifndef FIO_HAVE_HUGETLB
+#define SHM_HUGETLB 0
+#define FIO_HUGE_PAGE 0
+#else
+#ifndef FIO_HUGE_PAGE
+#define FIO_HUGE_PAGE 4194304
+#endif
+#endif
+
+#if __GNUC__ < 3
+#define __must_check
+#else
+#define __must_check __attribute__((warn_unused_result))
+#endif
+
#endif