The procedure to generate the Original French Manual has not changed, navigate to the /src directory and issue the command
make all
or the English version can be obtained by following the instructions below.
The LaTeX package picins (insert pictures into paragraphs) is not provided by any Debian package.
To install it locally:
wget http://mirrors.ctan.org/macros/latex209/contrib/picins.zip
or get it from https://ctan.org/pkg/picinsunzip picins.zip
mkdir -p ~/texmf/tex/latex
mv picins ~/texmf/tex/latex
texhash ~/texmf
See also https://wiki.debian.org/Latex or https://wiki.debian.org/fr/Latex for the French version.
To build the English version of the manual as a series of html pages and as a single pdf document issue the following make command
make English
There is still much work to be done to finish off the English User Manual and your help would be very welcome. Please read HelpTranslate-en.md for detailed instructions about how you can contribute your time and skills and make a big difference to all the English speaking users of Grisbi.