[Chicken-users] highlevel macros are not supported error

[Terrence Brannon]

When I attempt to use pos.scm I get this error -

#;9> ; loading /usr/local/lib/chicken/1/pos.scm ...
Error: (define-syntax) during expansion of (define-syntax ...) -
highlevel macros are not supported

        Call history:

        <syntax>                (require-extension pos)
        <syntax>                (##core#require-extension (quote pos))
        <syntax>                (begin (begin (##core#require-for-syntax (quote 
pos))
(##sys#require (quote pos-support))) (##core#u......
        <syntax>                (begin (##core#require-for-syntax (quote pos))
(##sys#require (quote pos-support)))
        <syntax>                (##core#require-for-syntax (quote pos))
        <syntax>                (quote pos)
        <syntax>                (define-syntax define-class (syntax-rules 
(superclasses
cvars ivars cmeths imeths fix-args) ((_ clas......      <--
#;9>

How can I fix this?