-#if __GNUC__ >= 3
-# define inline inline __attribute__ ((always_inline))
-# define __pure __attribute__ ((pure))
-# define __noreturn __attribute__ ((noreturn))
-# define __malloc __attribute__ ((malloc))
-# define __used __attribute__ ((used))
-# define __unused __attribute__ ((unused))
-# define __packed __attribute__ ((packed))
-# define likely(x) __builtin_expect (!!(x), 1)
-# define unlikely(x) __builtin_expect (!!(x), 0)
-/*
- * p is the number of the "format string" parameter, and q is
- * the number of the first variadic parameter
+#define inline inline __attribute__ ((always_inline))
+#define __noreturn __attribute__ ((noreturn))
+#define __malloc __attribute__ ((malloc))
+#define __a_unused __attribute__ ((unused))
+#define __a_aligned(alignment) __attribute__((__aligned__(alignment)))
+
+/*
+ * p is the number of the "format string" parameter, and q is the number of the
+ * first variadic parameter. If q is specified as zero, the compiler only
+ * checks the format string for consistency.