#define STRFTIME_FORMAT(FMT) __attribute__((__format__(__strftime__, FMT, 0)))
#define MALLOC_LIKE __attribute__((__malloc__))
#define ALWAYS_INLINE __attribute__((always_inline))
+#define WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
#else
#define NO_RETURN
#define OVS_UNUSED
#define STRFTIME_FORMAT(FMT)
#define MALLOC_LIKE
#define ALWAYS_INLINE
+#define WARN_UNUSED_RESULT
#endif
#endif /* compiler.h */