Since
b0e2c4a9 we require gcc-4.2 or later, so this is no longer
needed.
#define __printf_2_3 __printf(2,3)
#define __printf_3_4 __printf(3,4)
-# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 3)
-# define __must_check __attribute__ ((warn_unused_result))
-# else
-# define __must_check /* no warn_unused_result */
-# endif
-
+#define __must_check __attribute__ ((warn_unused_result))
#define _static_inline_ static inline
-