configure-compat

;;;
;;;To run the 'configure' script generated by newer Gauche in older Gauche
;;;

(use gauche.version)

;; For the compatibility to Gauche 0.9.7 - 0.9.9
(define (cf-init-gauche-extension)
  (when (version<? (gauche-version) "0.9.7")
    ;; 0.9.6 or before doesn't have cf-init-gauche-extension.
    ;; Give the user a helpful message.
    (exit 1 " Gauche 0.9.7 or later is required to use \
              cf-init-gauche-extension."))

  ;; Call original procedure
  ((with-module gauche.configure cf-init-gauche-extension))

  (when (version<=? (gauche-version) "0.9.9")
    ;; The default values for these variables weren't set in older Gauche.
    (unless (cf-have-subst? 'CFLAGS)
      (cf-subst 'CFLAGS (gauche-config "--default-cflags")))
    (unless (cf-have-subst? 'CPPFLAGS) (cf-subst 'CPPFLAGS ""))
    (unless (cf-have-subst? 'LDFLAGS)  (cf-subst 'LDFLAGS  ""))
    (unless (cf-have-subst? 'LIBS)     (cf-subst 'LIBS     ""))
    (unless (cf-have-subst? 'WINDOWS_UNICODE_FLAG)
      (cf-subst 'WINDOWS_UNICODE_FLAG
                (cond-expand
                 [(and gauche.os.windows gauche.ces.utf8) "-DUNICODE"]
                 [else ""])))
    )
  )

;; Local variables:
;; mode: scheme
;; end: