(define-interface ffi-import-constants-interface
  (export
   make-constant
   constant?
   constant-type-int?
   constant-type-char?
   constant-type-string?
   constant-c-name
   constant-scheme-name
   constant-c-value-name
   constant-type

   make-constant-from-c-name
   make-constant-from-c-name-integer
   
   generate-c-declarations
   generate-c-enter-values-function
   generate-c-gc-protect-globals-function

   generate-finite-type-definition
   make-drop-common-prefix-name-converter))

(define-structure ffi-import-constants ffi-import-constants-interface
  (open
   scheme signals
   srfi-1 srfi-9 srfi-13 srfi-28)
  (files ffi-tools))