>> Interestingly, the translated strings were there from the very >> beginning (i.e., since 2016) – I guess this has worked then, and >> later on Texinfo was modified somehow, and updating the PO file was >> forgotten. > > I would be quite surprised that this worked with texi2any since the > 5.0 release of GNU Texinfo. Maybe there was no error message, but > the result was probably unexpected. It could have worked with > makeinfo in C pre 5.0, I can't say.
Until September 2023 LilyPond used the ancient `texi2html` version 1.82 – maybe it worked with that script. However, it is not worth the time to investigate this further. It seems that there are not many Catalan Texinfo documents, otherwise the problem would have been detected earlier, I guess... Werner