Hello Michael,
sorry for the late reply.
> I would like to help debugging the problem. Which exact invocation
> do I have to use to replicate the EPS files you sent?
This is due to using `extractpdfmark`, which makes the build add the
options
```
-dfont-ps-resdir=$(top-build-dir)/out-fonts -O TeX-GS
```
However,...
> If I do `lilypond --eps input.ly` I get a much bigger EPS file, that
> seemingly has the fonts attached as binary data.
... it doesn't matter for the problem at hand: you also get the
differences with normal `lilypond --eps` calls.
Werner
