Interdata_v6/usr/source/troff/cmds/READ_ME

Find at most related files.
including files from this version of Unix.

This directory contains source for both nroff and troff. Use the preprocessor
symbol NROFF to determine which one is being compiled. (See run)

Suftab.s is assembled to make /usr/lib/nsuftab.

Needless to say, troff has never been tested.