On 7-Jul-09, at 10:16 PM, lowly coder wrote:

in C, I can do something like:

#ifndef H_blah #define H_blah ...

#endif

how can I do something similar for files (include ... 'ed) in gambit? I have some define-types , and I only want the define-types to load once.

Thanks!

;; File: "foo.scm"

(cond-expand

((not foo.scm) (define-type person name gender) (define-cond-expand-feature foo.scm))

(else))