Re: [Chicken-users] How to use prelude?

[Peter Bex]

On Sun, May 28, 2006 at 12:31:14PM +0200, felix winkelmann wrote:
> > Adding a quote in front of the define doesn't work either as that expands
> > to (quote (define with-x #t))
> 
> Try "'...'" (one pair of double-quotes for scheme, and one pair of single
> quotes for the shell).

It would be nice if you could document this in the manual.

> > How does this work, then?  (also, can I use cond-expand with this?  I'm not
> > sure how to add features cond-expand can check against)
> 
> As Kon replied: register-feature! is the way. But that is at run-time,
> of course.
> To have it available at compile-time (I'm not 100% sure in what way you
> want to use this), things are (as usual) a tiny little bit more complicated.

Could you elaborate on how to do it?  I though cond-expand was compile-time.
I guess I was wrong :)

Anyway, what I want to do: I have a definition for a C function that only
exists if Imlib2 is compiled without X.  So, if X is not found, I don't want
a binding for that function.  I guess this has to be done compile time, since
the function doesn't even exist, meaning the (foreign-lambda ...) can't be
translated.

I hope I am making some sense here.

Regards,
Peter
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