There are quite enough pitfalls with the 'C' preprocessor without trying to redefine fundamental language elements!

If you want to write Pascal, get a Pascal compiler! - there's at least one under 'Links'

You should definitely re-write your code using pure 'C' syntax before pusuing this any further.

For future reference, if you have errors that you can't explain, you might try Andy's Handy Hint for Debugging Preprocessor Problems:

http://www.8052.com/forum/read.phtml?id=29152