Source is from today.

The system is an MP box that was last updated on 9/9/2003.

c++ -I. -I/usr/src/gnu/dist/groff/src/roff/troff  -I/usr/src/tools/groff/obj/build/src/include -I/usr/src/gnu/dist/groff/src/include -DHAVE_CONFIG_H -O  -c /usr/src/gnu/dist/groff/src/roff/troff/uniuni.cpp
c++ -O  -o troff dictionary.o  div.o  env.o  glyphuni.o  input.o  majorminor.o  node.o  number.o  reg.o  symbol.o  unicode.o  uniglyph.o  uniuni.o /usr/src/tools/groff/obj/build/src/libs/libgroff/libgroff.a  -lm
div.o(.rodata+0x5ec): undefined reference to `__pure_virtual'
div.o(.rodata+0x5f0): undefined reference to `__pure_virtual'
div.o(.rodata+0x5f4): undefined reference to `__pure_virtual'
div.o(.rodata+0x5f8): undefined reference to `__pure_virtual'
div.o(.rodata+0x5fc): undefined reference to `__pure_virtual'
div.o(.rodata+0x600): more undefined references to `__pure_virtual' follow
*** Error code 1

Stop.
make: stopped in /usr/src/tools/groff/obj/build/src/roff/troff
*** Error code 1

-- 
Rick Kelly  rmk@rmkhome.com  www.rmkhome.com