groff:    GNU troff 1.08 document formatting system.
groff:
groff:    The groff package provides compatible versions of troff,
groff:    nroff, eqn, tbl, and other Unix text-formatting utilities. 
groff: 
groff:    Groff is used to "compile" man pages stored in groff/nroff format
groff:    into a form which can be printed or displayed on the screen.
groff:  
groff:    These man pages would be found in /usr/man/man?. All the man pages 
groff:    in the Slackware Linux distribution (except those that come with the
groff:    groff package) have been preprocessed, GNU zipped, and placed in the 
groff:    /usr/man/cat? directories. Groff is *not* needed to view any of the 
groff:    preprocessed man pages.                                 
extra444: Extra static libraries used for profiling and debugging. (v. 4.4.4) 
extra444: (libc_p.a, libgmon.a, gcrt0.o, libg.a, libmcheck.a)