cleodoc% make PS
## working directory is /mit/docsourc/doc/unix.manual.ditroff/indep_troff ######
psroff -t -ms itroff.doc > itroff.PS
troff: Can't open /usr/lib/font/devpsc/PA.out
troff: Can't open /usr/lib/font/devpsc/PI.out
troff: Can't open /usr/lib/font/devpsc/PB.out
troff: can't open file ~mac
*** Exit 2

Stop.
cleodoc%