Thanks for all replies. I re-installed the Groff packages and now it works. It's probably only a part of it was installed by default. Thanks for all kind help.
-----Original Message----- From: groff <groff-bounces+kevinwong083=hotmail....@gnu.org> On Behalf Of Tadziu Hoffmann Sent: Tuesday, December 3, 2019 3:38 AM To: groff@gnu.org Subject: Re: Cannot find the module of ?pfbtops" > Of course, if you're on the packaging team, and want to make claims > about the number of supported packages, then 5 is better than 1 or 2. Peanuts. On openSUSE texlive is split into more than 6000 (!) packages...