Hi Dmitry,
It worked, thanks. Upgrading now, but it's not as easy as I expected.
I don't know much about Slackware, but I'm surprised you seem to try and compile LilyPond yourself.
Isn't it possible to simply use the pre-packaged installer? The current 32-bit version is https://lilypond.org/download/binaries/linux-x86/lilypond-2.22.1-1.linux-x86.sh
Lukas
