Okay, [final change](https://github.com/geany/geany/compare/27f691cbca5869ac867d80113074facd3ee3b...): `[build_settings]` commented out, because they are not 100% platform-independent. But I think they are still useful as hint for custom configs.
Successfully built Geany (c942622e453362f1f93a9d73e143815c5ae26db8) and tested it with some CIL files at Debian 12. Looks good to me…