Re: [Chicken-hackers] conditionals in .egg files

[Jörg F . Wittenberger]

Hi!

I don't have to salute, do I?  ;-)

On Sep 27 2018, address@hidden wrote:

> Hi!
>
>
> I wonder: there is no way to conditionally set options, configure egg 
> building, etc. I think it would be handy to have a "cond-expand" form 
> that can be used inside ..egg files customize the egg build/installation 
> depending on platform. This would also bring back the "-feature" option 
> for chicken-install, that Jörg dearly missed, as CSC_OPTIONS can not be 
> used to pass any options directly to the processing of an egg.
>
> Opinions?

I'd love it.

One more idea: How about an entry indicating the version of the egg file 
syntax?

Having something to cond-expand is nice. But it might be hard to settle 
with a final version without unduly delaying CHICKEN 5.

This leaves us with changing semantics of many eggs over time. With a an 
entry like
 (egg-version "1.X") future changes could easier apply backward compatible 
processing for old eggs.


/Jörg