I have been reading the source code for parenscript and I am keen to find out how you override locked symbols? In the parenscript package there are exports such as "#:defun". I have tried myself to create my own package that exports defun but i get the following error message(using SBCL)

"Lock on package COMMON-LISP violated when proclaiming DEFUN as a function"

I'd be very interested in finding out how you got around this.

Thank you,

James Gunn