Re: eval-when & *.lib

[Sam S. <sd...@gn...>]

> * In message <154...@ho...>
> * On the subject of "Re: eval-when & *.lib"
> * Sent on Fri, 15 Feb 2002 14:35:09 +0100 (CET)
> * Honorable Bruno Haible <ha...@il...> writes:
>
> Sam writes:
>
> > I would appreciate your attention.
> > Maybe this whole *.lib thing should be removed?
>
> With such extremist propositions you indeed get my attention. :-(

Cool - unless you answer my questions about the Todd's patches
(why did you have separate buffered_full_flush() buffered_half_flush()?)
I will remove buffered i/o altogether :-)
Also, unless you answer my question about TRACE (why TRACE1 returns code
instead of evaluating it), I will remove TRACE functionality.
Hey - this is the "RMS way": remove all code one does not understand
(I am referring to the ange-ftp episode, when RMS removed support of
platforms he did not understand from the code he included in Emacs).

> > We got a bug:
> > https://sourceforge.net/tracker/index.php?func=detail&aid=515604&group_id=1355&atid=101355
>
> I think it is not a bug
>
>   (eval-when (:compile-toplevel :execute)
>     (defvar *crap* #.(lambda (arg) (* 10 arg))))
>
> because a literal function object is not an externalizable
> object. Please read CLHS chapter 3, in particular 3.2.4.

this variable is defined only during compilation and evaluation, not
loading, so there is no reason for it to be either in *.fas nor in
*.lib.

> If it is a bug in clisp and not in the 2-line snippet (I'm not sure),
> then the solution would be to be more careful when writing objects of
> unknown type to a .lib file.

I don't think this is correct.
we should be careful _when_ we write to .lib, not _what_ we write there.

> The "poor man's system construction" is indeed to have a makefile that
> looks like this (pardon my mix of make syntax and Lisp syntax):
>
> .lib files are to .lisp files like what .h files are to .c/.cc files
> in the C/C++ world, except that they are automatically generated.

I bet _I_ am the only one using this nice feature (and I am using it
since this morning - see the 'wrap.lisp' patch).

Okay, I will document this better.

--
Sam Steingold (http://www.podval.org/~sds) running RedHat7.2 GNU/Linux
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