here is a description of tmac files:

tmac.anc - 	driver for formatting man pages when using vman,
		calls tmac.an, tmac.an6t, tmac.an6n
		(nroff tmac.anc file.1 | more)

tmac.an -	used with ?roff for printing man pages

tmac.an6t - 	used for formatting 6 files
tmac.an6n -	used for formatting 6n files

tmac.anc.tmpl - template used for setting the paths correct for tmac.anc

custiomize - shell script used to generate tmac.anc from the tmac.anc.tmpl file
