Re: Guile 64-bit Windows support, redux

[Jonas Hahnfeld]

On Wed, 2024-02-07 at 09:19 -0500, Thompson, David wrote:
> On Thu, Jan 4, 2024 at 5:40 AM Jonas Hahnfeld via Developers list for
> Guile, the GNU extensibility library <guile-devel@gnu.org> wrote:
> > 
> > On Tue, 2023-11-28 at 22:04 +0100, Jonas Hahnfeld wrote:
> > > 
> > > Ping, any comments on this approach? I built binaries for LilyPond
> > > 2.25.10 using these patches applied on top of Guile 3.0.9 and the
> > > result seems to work fine on Windows.
> > 
> > Another ping; meanwhile we switched to building the official binaries
> > of LilyPond with Guile 3.0 starting from version 2.25.11, but it would
> > be really great to get rid of our downstream patches...
> 
> Just chiming in to say this is a very exciting development that I had
> missed when the patch set was first sent!
> 
> Does this allow a fully featured Guile build or are some things still
> disabled? Does JIT work?

It's functional enough to run LilyPond (which uses quite a bit of
Guile) and well enough so that there is only one complaint (that I know
of so far) about multiplication with negative numbers not working
right. If I remember correctly from quickly having a look, that's
related to scm_integer_mul_ii using long_magnitude which doesn't quite
work on Windows 64-bit. For LilyPond, we disable some features (JIT,
threading, networking; you can look at the full build recipe here:
https://gitlab.com/lilypond/lilypond/-/blob/master/release/binaries/lib/dependencies.py#L628
) and I don't know which of these would work or how much it would take
to support them.

Jonas

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