Lionel Elie Mamane <lmamane-scsh-list-2003-10-29@conuropsis.org> writes:
>
>>> srfi/srfi-13.scm and srfi-14.scm contain similar stuff, with the MIT
>>> scheme project instead of T Project at Yale.
>
>> How do other scheme implementations such as guile deal with this
>> issue? Did they reimplement the whole reference implementation of
>> the SRFIs?
>
> I planned to ask the Guile people, but I must admit to myself that
> currently, I don't have the time, either. Daniel Kobras, will you try
> to find out?
I have checked this in the meantime: they have implemented the SRFIs in
C...
> Daniel Kobras launched a discussion on this license on the
> debian-legal mailing list. You can read it at:
>
> http://lists.debian.org/debian-legal/2003/debian-legal-200311/msg00190.html
>
>>> ;; However, this document itself may not be modified in any way
>
>>> Urgh... This suggests one is totally forbidden to change this file!
>>> But I have some doubts that this is really the copyright notice of
>>> the SRFI implemented there, not of the implementation itself. But
>>> why is this copyright notice there, in the implementation?
>
>> Because it's the original reference implementation. However, the
>> full sentence you quoted is
>
>> ;; However, this document itself may not be modified in any way, such as by
>> ;; removing the copyright notice or references to the Scheme Request For
>> ;; Implementation process or editors, except as needed for the purpose of
>> ;; developing SRFIs in which case the procedures for copyrights defined in
>> the SRFI
>> ;; process must be followed, or as required to translate it into languages
>> other
>> ;; than English.
>
>> which I read as the usual "the copyright needs to remain intact".
>
> Hmm. "This document" refers to the copyright license? This is highly
> unclear to me. My interpretation was more along the lines of "this
> document" = the SRFI standard document.
No, the SRFI document has it's own copyright statement. I've asked
Will Fitzgerald, the author of SRFI-19, about this. He also pointed me
to the SRFI FAQ at
<http://srfi.schemers.org/srfi-faq.html>
which explains the meaning of the copyright statement. The reference
implementation of SRFI-19 is "free".
--
Martin
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