Hello George,
Sorry for the terrible delay!
George McNinch <gmcni...@zoho.com> skribis:
> I wanted to follow up on my question here:
>
>>> What would it take to make skribilo use guile-2.2 instead of
>>> guile-2.0?
Of course you found out in the meantime :-), but basically I started
updating some of the code to support 2.2 in master months ago, and
didn’t quite finish, because I stumbled upon…
> e.g. guile-2.0 is apparently happy to evaluate forms like the following:
>
> (let
> ((a '(1 2)))
> (set-car! a 3)
> a)
>
> ==> (3 2)
>
> Upon evaluating that form in guile-2.2, however, it complains
>
>>> In procedure set-car!: Wrong type argument in position 1 (expecting
>>> mutable pair): (1 2)
>
> Variations of this latter error ("expecting mutable pair") seem to
> appear a lot when I try to use skribilo with guile-2.2. I chased such
> errors for a while yesterday afternoon - e.g. this sort of error occurs
> in some methods in engines.scm handling the customs of an engine, and I
> was able to give a fix to that issue that seemed to behave correctly.
> (e.g. with the skribilo from git, calling
>
> (use-modules (skribilo engines))
>
> (engine-custom-set! (find-engine 'html) 'emit-sui #t)
>
> produced an "expecting mutable pair", and I managed to find a fix to
> *that* problem.
… this issue ↑
I think it was segfaulting while building the manual, because in Guile
2.2 you’re really not supposed to mutate a literal pair.
If you have patches that fix issues like this, I’m happy to take them!
Thanks,
Ludo’.
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