[gambit-list] including a file only once
Marc Feeley
feeley at iro.umontreal.ca
Tue Jul 7 23:38:36 EDT 2009
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))
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