cawf-minix fails on modern man pages. Mostly because cawf's man macros are all UPPER CASE and modern macros are Mixed Case 🤐
I suspect porting modern C source would still be easier than hacking around in the nroff macros.
grr i just want to look at man pages!
Newest version of cawf I can find dates to 1997. No support for mandoc files.
It makes sense, groff was available by then, so what's the point of a funky old partial nroff clone?
BSD's mandoc package looks like it's really what I want, but is also overkill and wants to be set up with a configure script, so that's a job for the autobuilder people.
Of course, if the autobuilder system hadn't mangled file's manpage so badly I wouldn't be looking for a manpage formatter under RISC OS.