I found the doc, maybe you can take a look!

---------- Forwarded message ----------
From: Stefan Israelsson Tampe <stefan.itampe@gmail.com>
Date: Fri, Feb 8, 2013 at 9:53 PM
Subject: Re: splicing macros
To: Andy Wingo <wingo@pobox.com>
Cc: guile-devel <guile-devel@gnu.org>

Hi,

Here is a git-format-patch of some docs for the ck macro.
enjoy!

On Sun, Jan 27, 2013 at 11:17 AM, Andy Wingo <wingo@pobox.com> wrote:

> On Sat 26 Jan 2013 14:03, Stefan Israelsson Tampe <stefan.itampe@gmail.com> writes:
>
>> I will assume that you are familliar with th ck macro, included in
>> recent guile releases or else consider looking it up at
>>
>> http://okmij.org/ftp/Scheme/macros.html
>
> It does not seem to be documented in Guile's manual. Want to write some
> documentation? :)
>
> Andy
> --
> http://wingolog.org/