cocos2d-x 2.x必须升级到2.26才能通过appstore对64bit支持的验证

标题有点唬人，但如果还在用2.x的朋友，升级到2.26是有必要的。因为luajit不支持64bit，因此在ios 64bit上只能用lua，不能用luajit了。cocos2d-x2.26为此专门将3.x上的lua加密移植了过来。详细可以看这里：http://www.cocos2d-x.org/news/386

顺便帖一下32bit和64bit的不一样

Integer data type	ILP32 size	ILP32 alignment	LP64 size	LP64 alignment
char	1 byte	1 byte	1 byte	1 byte
BOOL, bool	1 byte	1 byte	1 byte	1 byte
short	2 bytes	2 bytes	2 bytes	2 bytes
int	4 bytes	4 bytes	4 bytes	4 bytes
long	4 bytes	4 bytes	8 bytes	8 bytes
long long	8 bytes	4 bytes	8 bytes	8 bytes
pointer	4 bytes	4 bytes	8 bytes	8 bytes
size_t	4 bytes	4 bytes	8 bytes	8 bytes
time_t	4 bytes	4 bytes	8 bytes	8 bytes
NSInteger	4 bytes	4 bytes	8 bytes	8 bytes
CFIndex	4 bytes	4 bytes	8 bytes	8 bytes
fpos_t	8 bytes	4 bytes	8 bytes	8 bytes
off_t	8 bytes	4 bytes	8 bytes	8 bytes

Floating-point type	ILP32 size	LP64 size
float	4 bytes	4 bytes
double	8 bytes	8 bytes
CGFloat	4 bytes	8 bytes

如果项目已经在用低于2.26版本的，可以参考一下这篇文章，手动升级来支持2.26

http://blog.youkuaiyun.com/forza2121/article/details/43280847