[bug #59986] simplified-book-titling.ily "Not a markup command" fatal error with LilyPond 2.22.0 (Guile 2.2)

[Anthony Fok]

URL:
  <https://savannah.gnu.org/bugs/?59986>

                 Summary: simplified-book-titling.ily "Not a markup command"
fatal error with LilyPond 2.22.0 (Guile 2.2)
                 Project: Denemo
            Submitted by: foka
            Submitted on: Mon 01 Feb 2021 04:52:40 PM MST
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Scores using simplified-book-titling.ily fail to render with LilyPond 2.22.0
compiled with Guile 2.2, but render fine with LilyPond 2.20.0 compiled with
Guile 1.8.

== Denemo version tested ==

2.5~rc1, a.k.a. 2.4.5

== Sample test score ==

* http://denemo.org/~rshann/DenemoScores/Handel/TrioSonata6.denemo.gz

== Warnings and fatal error ==


GNU LilyPond 2.22.0
Processing `simplified-book-titling.ily'
Parsing...WARNING: (#{ g170}#): `vspace-markup' imported from both (lily) and
(#{ g160}#)
WARNING: (#{ g171}#): `vspace-markup' imported from both (lily) and (#{
g160}#)

fatal error: Not a markup command: chapter-title


== Potential solutions ==

I tried moving the various define-markup-command's to the top of the file, and
that seems to work, though Guile is really Greek to me, so I googled in hope
of a better solution.

Thankfully, this error was discussed on lilypond-devel in the thread guilev2
problem (user-markup-command sometimes not accepted)
<http://lilypond.1069038.n5.nabble.com/guilev2-problem-user-markup-command-sometimes-not-accepted-td217304.html>

where David Kastrup suggested:

> The markup macro is a piece of crock anyway.  Use
>     (display-scheme-music (make-dummy-markup "foo"))
> or
>     (display-scheme-music #{ \markup \dummy foo #})
> here to get out of that predicament.

I tried the first alternative which works for me for both LilyPond 2.20 and
2.22.

I have attached the changes as a patch to this bug report.  Please feel free
to resolve this bug in whichever way you prefer.

Many thanks!

Anthony



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File Attachments:


-------------------------------------------------------
Date: Mon 01 Feb 2021 04:52:40 PM MST  Name:
simplified-book-titling--fix-not-a-markup-command-error-with-guile-2.patch 
Size: 2KiB   By: foka

<http://savannah.gnu.org/bugs/download.php?file_id=50820>

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