These are modified versions of the GNU String and Regex
classes.  Their names are somewhat altered so there isn't a conflict
with the original g++ distribution.  To compile libg++ for a given
architecture:
  cd ./lib/libg++
  -- Edit the Makefile and set the appropriate values for CC and CXX
  make clean
  make configure
  make
  -- if needed: mkdir lib_$ARCH  (e.g.: mkdir lib_IRIX5)
  mv libg-plus-plus.a lib_$ARCH
  -- for example: cp libg-plus-plus.a lib_LINUX