[Jscheme-user] macros

[Borislav I. <bor...@ko...>]

Hi all,

I have a problem getting macros to work. As I understand, I need to load
the following two files:

elf/eopl2/jscheme/genwrite.scm
elf/eopl2/jscheme/psyntax-init.scm

I do that and then try something simple like:

(define-syntax swap
  (syntax-rules ()
	((swap a b) (let ((tmp b)) (set! b a) (set! a tmp)))))

Evaluating the last expression tells me "undefined variable
'define-syntax'". 

I also tried loading a the OO style code using/friedman-init.scm which
makes heavy use of macros and I get an error saying that 'pretty-print'
is not defined.

This is with the latest code from CVS, patched not to set the current
thread's classloader to Import.CLASSLOADER.

I am quite a beginner in Scheme and I've never used macros, so the
problem may be a really straightforward misunderstanding on my part.

Thanks,
Boris