libreoffice-7.1.6.2 does not builds with bison-3.8.x

[Stephan Bergmann]

On 13/09/2021 23:03, Piotr Karbowski wrote:
> It appears that libreoffice no longer can be built after upgrading bison
> to 3.8.x releases.
> 
> A wall of errors such as below is printed
> 
> 
> /var/portage/tmp/portage/app-office/libreoffice-7.1.6.2/work/libreoffice-7.1.6.2/workdir/YaccTarget/connectivity/source/parse/sqlbison.cxx:138:77:
> error: ‘yyn’ was not declared in this scope; did you mean ‘yyk’?

see <https://gerrit.libreoffice.org/c/core/+/122082> "Adapt to Bison 3.8 
internal yyn -> yyrule rename"