Build fails

[Marc Balmer <mhbalmer%gmail.com@localhost>]

I am trying to "build.sh tools“ on an updated source tree, it constantly fails when i tries to build groff:

c++ -I. -I/usr/src/external/gpl2/groff/dist/src/preproc/eqn  -I/usr/obj/tools/groff/build/src/include -I/usr/src/tools/groff/../../external/gpl2/groff/dist/src/include -DHAVE_CONFIG_H -O -I/usr/src/obj/tooldir.NetBSD-8.99.14-amd64/include/compat -I/usr/src/tools/compat  -DHAVE_NBTOOL_CONFIG_H=1 -D_FILE_OFFSET_BITS=64 -c  /usr/src/external/gpl2/groff/dist/src/preproc/eqn/main.cpp
In file included from /usr/src/external/gpl2/groff/dist/src/preproc/eqn/main.cpp:24:0:
/usr/src/external/gpl2/groff/dist/src/preproc/eqn/eqn.h:70:2: error: 'box' does not name a type
  box *b;
  ^
/usr/src/external/gpl2/groff/dist/src/preproc/eqn/eqn.h:71:2: error: 'pile_box' does not name a type
  pile_box *pb;
  ^

(lots of errors follow)

Is there sth special with the eqn.h file? 

Thanks,
mbalmer