If you cloned this repository initially without submobules, you can always update the content of submodule directories with the git submodule update command. Execute the command from the main project directory:
```
git submodule update --init --recursive
```
The --init flag initializes the submodules before the update. The --recursive option searches for nested submodules and ensures they are updated too.
### Python based dependencies
In order to generate the documentation, first create a Python 3 virtual environment using the `venv` module included in Python 3:
@ -29,7 +37,13 @@ In order to generate the documentation, first create a Python 3 virtual environm
For generating the images from PlantUML sources (`*.plantuml`), [PlantUML](https://plantuml.com/) is required.
For pdf output the LaTeX builder is used, so `latex` and `pdflatex` need to be installed.
For pdf output the LaTeX builder is used, so `latex` and `pdflatex` need to be installed. On a clean (no Latex compilation yet) operating system like GNU/Debian, the following dependencies are required to make Latex compile the sources.
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