# define HAVE_FUNC_ATTRIBUTE_UNUSED 1
# define HAVE_FUNC_ATTRIBUTE_FORMAT 1
# define HAVE_FUNC_ATTRIBUTE_PACKED 1
+# define HAVE_FUNC_ATTRIBUTE_ALIAS 1
# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
/* https://gcc.gnu.org/onlinedocs/gcc-4.3.6/gcc/Other-Builtins.html */