Control: tag -1 confirmed pending On Sat, Mar 23, 2024 at 7:15 PM Jonathan Harker <j...@jon.geek.nz> wrote: > > Package: lilypond > Version: 2.24.1-2 > Severity: important > > Dear Maintainer, > > *** Reporter, please consider answering these questions, where appropriate *** > > * What led up to the situation? > * What exactly did you do (or not do) that was effective (or > ineffective)? > * What was the outcome of this action? > * What outcome did you expect instead? > > *** End of the template - remove these template lines *** > > Hi, (please forgive me if this is my first Debian bug) > > I have been working with Tim Starling and other Wikipedia/Lily folks recently > over on https://phabricator.wikimedia.org/T49578 in order to get SVG output > working nicely for the Score music extension. It appears that one of the major > features of 2.24 was rewriting the SVG output to use libcairo, which results > in > much better more consistent output than the old libsvg code. > > It seems that at least in bookworm with 2.24.1 the libcairo support is missing > (looks like a compiler flag). The following compares the output from the > bookworm package, which fails to render the Cairo SVG, and a 2.23 pre-release > binary with the libcairo support compiled in, which succeeds: > > ``` > root@bookworm$ lilypond -dno-use-paper-size-for-page -dbackend=cairo --svg > --png alto.ly > GNU LilyPond 2.24.1 (running Guile 2.2) > Processing `alto.ly' > Parsing... > Interpreting music... > Preprocessing graphical objects... > Finding the ideal number of pages... > Fitting music on 1 page... > Drawing systems... > fatal error: compiled without CAIRO_BACKEND > > root@bookworm$ /usr/local/bin/lilypond -dno-use-paper-size-for-page > -dbackend=cairo --svg --png alto.ly > GNU LilyPond 2.23.82 (running Guile 2.2) > Processing `alto.ly' > Parsing... > Interpreting music... > Preprocessing graphical objects... > Finding the ideal number of pages... > Fitting music on 1 page... > Drawing systems... > Layout output to `alto.png'... > Layout output to `alto.svg'... > Success: compilation successfully completed > ``` > > Note that this does not mean the SVG output is broken, only the output when > specifying `-dbackend=cairo` which our Score extension relies on (for the much > improved rendering; upstream have indicated that this will become the default > SVG backend in a future release). > > Example rendering (using the working libcairo support in the 2.23 prelease) is > visible here, if it helps: https://mw-master.test.jon.geek.nz/ > > > -- System Information: > Debian Release: 12.5 > APT prefers stable-updates > APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, > 'stable') > Architecture: amd64 (x86_64) > > Kernel: Linux 6.1.0-12-amd64 (SMP w/16 CPU threads; PREEMPT) > Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), > LANGUAGE=en_GB:en > Shell: /bin/sh linked to /usr/bin/dash > Init: systemd (via /run/systemd/system) > > Versions of packages lilypond depends on: > ii ghostscript 10.0.0~dfsg-11+deb12u3 > ii guile-2.2 2.2.7+1-9 > ii guile-2.2-libs 2.2.7+1-9 > ii libc6 2.36-9+deb12u4 > ii libfontconfig1 2.14.1-4 > ii libfreetype6 2.12.1+dfsg-5 > ii libgc1 1:8.2.2-3 > ii libglib2.0-0 2.74.6-2 > ii libpango-1.0-0 1.50.12+ds-1 > ii libpangoft2-1.0-0 1.50.12+ds-1 > ii libstdc++6 12.2.0-14 > ii lilypond-data 2.24.1-2 > ii python3 3.11.2-1+b1 > > Versions of packages lilypond recommends: > pn texlive-latex-base <none> > > Versions of packages lilypond suggests: > pn lilypond-doc <none> > pn python3-lxml <none> > > -- no debconf information
Hi Jonathan, Thank you so much for your very detailed bug report about enabling LilyPond’s Cairo backend and its real-life use in the Wikipedia Score extension! Very interesting indeed! My apologies for my very tardy reply as I have neglected to check my Debian email inbox and missed your bug report altogether, until the other day when I introduced LilyPond to my 11-year-old boys and noticed a new upstream version, prepared to package it, and finally saw this bug through the Debian package tracker. Sorry for the delay! The lilypond 2.24.4-1 Debian source package has just been uploaded, and will hopefully be available for download in Debian sid/unstable in a day or two. I may upload it into bookworm-backports too, but that may take another two weeks before it shows up in the backports archive. Thanks again! Cheers, Anthony Fok
