Compilation and defstruct

I have defined a structure using defstruct. The problem is, my code runs fine when interpreted but when I try to compile it I get an error saying that "make-state" is an undefined function. Is there anything I should do in order to compile my code that isn't required when it is being interpreted? I'm running Allegro CL is Mac OS X, if that matters.

Thanks in advance.

I don't think there should be a difference in interpreting or compiling the code, it can be a bug. It would be a good thing if you posted the problematic code, or tested it in other implementations.

Thanks but I solved it already. I was trying to use a constructor in a defconstant.