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Re: guile-2.0 and debian

From: Knut Petersen
Subject: Re: guile-2.0 and debian
Date: Thu, 24 Nov 2016 18:21:14 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0

Hi Jan-Peter!

And about the choice between guile 1.8 or 2.0.12/13, it should be
possible to have both guile-1.8 and guile-2.0 packages installed in the
same image and then let lilypond choose which one to pick up at
configure-time, shoudln't it?
I doubt that. You can install guile 1.8 and 2.0 in one system, but not 
guile-dev 1.8 and 2.0 AFAICS. So one needs to separate systems for each version 
of guile.

Or am I wrong?

OpenSuSE Tumbleweed has guile and guile1. They can be installed together.
AFAIR the guile1 package was created especially to support lilypond. So
I have installed a guile 2.0.13-2.1 and guile 1.8.8-19.3 development 
provided by the distribution.

OpenSuSE Leaf and some older versions also provide the possibility to install 
guile 1.x and
guile 2.x together, but guile 2 is to old in those versions of the distribution.

Building 2.19.51 with the patchset at
and guile 2 succeeds after about 25 minutes.

Page 265 of notation.pdf shows correct "ö" and "ß" characters. But if I compile 
my own lilypond
scores all but the plain ascii chars are broken, even with LANG=c.

lilypond built with guile 2.0.13 seems to be significantly slower than lilypond 
build with 1.8.8:
Depending on the input file the 2.0.13-lilypond takes about 2.5x to 3.0x the 
time of the 1.8.8-lilypond.

It would be nice if someone could provide a list of the latest patches to test 


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