It should work today. If we migrate to ILP64 data model then we can restore many of those elegant behaviors, because it makes C so easy, almost like a scripting language. As far as I can tell, the original motivations for the LP64 data model which causes int and int* to be different widths, was because SCO wanted it that way. They never published the measurements that led them to this conclusion. Are you willing to sacrifice language simplicity based on the word of the people who are famous for suing Linux users?
The Open Group's study into LP64/ILP64 explains their choice fairly well. In particular, it mentions both Digital and SGI's prior experience with porting code to LP64. There's nothing about SCO's preferences in it.
