Re: guileV2 and Lilypond (was: Strings as variable names)

[Menu Jacques]

Hello Paul,

Thanks a lot for the informatin and links, things are much clearer to me now.

JM

> Le 3 janv. 2016 à 20:51, Paul Morris <address@hidden> a écrit :
> 
>> On Jan 3, 2016, at 11:14 AM, Menu Jacques <address@hidden> wrote:
>> 
>> A newbie question: what are the expected benefits and challenges of moving 
>> from guile 1.8.x to guile 2.y?
> 
> As I understand it, guile 2.0 introduced significant performance 
> improvements, mainly for compiled scheme, but since LilyPond interprets 
> scheme, and the scheme interpreter in guile 2.0 is actually slower than in 
> 1.8 (but faster in 2.2 than in 2.0)  …just how much of the performance 
> benefits LilyPond will enjoy remains to be seen.
> 
> One of the immediate benefits is just keeping up with the current guile 
> version distributed with gnu/linux distributions.  They don’t want to keep 
> including guile 1.8 just for LilyPond’s sake, so LilyPond could get dropped 
> from these distributions.
> 
> But the big story is the challenges -- mainly that guile 2.0 still has bugs 
> that need to be fixed for it to work reliably with LilyPond.
> 
> I recently saw this announcement about guile 2.1.1 the "first pre-release in 
> what will become the 2.2 stable series”:
> http://savannah.gnu.org/forum/forum.php?forum_id=8397
> 
> That led me to the redesigned guile website and their mailing list, where I 
> found a post that touches on the need for better LilyPond support in guile:
> http://lists.gnu.org/archive/html/guile-devel/2015-11/msg00005.html
> 
> And this follow-up post that clearly lays out the current showstopper bug: 
> http://lists.gnu.org/archive/html/guile-devel/2015-11/msg00031.html
> 
> Maybe that sheds some light on this.  Clarifications and additions welcome.
> 
> -Paul
> 
> 
>