For anyone who might be interested: I've cloned the git repository of GNU bison to GitHub, and started a new branch 'automake-ng' (based of off 'master') where I can experiment freely with the use of Automake-NG in the bison build system. You can find the repository here:
<https://github.com/slattarini/bison-am-ng>
Regards,
Stefano
