Hi Jason, This is almost certainly caused by https://gitlab.com/lilypond/lilypond/-/commit/26d9b198b4ebf142551f52de8e1308a0fb0b0561
Dan can probably help you with any updates to your code that follow from that change. At 09:01 on 26 Jul 2023, Jason Yip wrote: > Usually, whenever the Lilypond master branch is updated, I fetch the > upstream master branch then rebase my master branch of my repository > to theirs. However, the new updates I received today have basically > broke my build environment. I cannot unsuccessfully build the upstream > master branch. First comes a compilation error, so I wondered if the > merge request I created just now would help: > https://gitlab.com/lilypond/lilypond/-/merge_requests/2070 . With that > patch, it does compile successfully, but I get a very concerning error > when invoking make test-baseline without any arguments: -- Mark Knoop