1To make troff (actually a.out): 2 3 make 4 5You will also need to write a driver for your favorite output device. 6d202.c provides a model, although it is specialized to a machine no 7one has. There are also a variety of postscript drivers that are the 8best thing to use if you have a postscript device. 9 10You will also have to make a DESC file for your typesetter and some 11font description files; see dev202 for examples. These describe the 12named characters, widths, kerning information, and output codes. 13 14Nroff is the same program as troff, so you should 15 16 cp a.out /usr/bin/troff 17 ln /usr/bin/troff /usr/bin/nroff 18 19or the equivalent. 20 21You will also need terminal description files for your terminals; see 22tab.37, tab.450 and tab.lp for examples. 23 24Troff uses files that are normally stored in /usr/lib/font; 25macro packages are in /usr/lib/tmac; and nroff tables are in 26/usr/lib/term. You can edit tdef.h to change these assumptions. 27 28There have been a few features since the last version, and a number of 29significant internal changes. Not all are improvements, of course. 30Most of the more recent changes, including bug fixes, are in FIXES, 31which you should read also. 32