Macro definitions cannot come after its usage

[Takashi Kato]

This is perfectly valid R6RS code:

#!r6rs
(import (rnrs))
(define (fun)
  (mac))
(fun)
(define-syntax mac
  (syntax-rules ()
    ((_)
     (begin
       (display 123)
       (newline)
       (flush-output-port (current-output-port))))))

But raises an error.

[Takashi Kato]

0a9b403 fixes this issue partially.

For R6RS script, we need to introduce a new option.

[Takashi Kato]

Adding 'program' syntax to run script on strict R6RS mode (Fixes #104)

→ <<cset 57a34a901f74>>