[Groff] Build of groff fails on NetBSD

[carsten . kunze]

Hello,

the build of the git repository fails on NetBSD 6.1.5:

$ make 
make  all-am
g++  -g -O2    -o grn src/preproc/grn/hdb.o  src/preproc/grn/hpoint.o  
src/preproc/grn/hgraph.o  src/preproc/grn/main.o lib/libgnu.a libgroff.a -lm 
libgroff.a(libgroff_a-font.o): In function `font::get_width(glyph*, int)':
/home/carsten/work/download/computer/software/unix/roff/groff/groff/src/libs/libgroff/font.cpp:386:
 undefined reference to `rpl_wcwidth'
libgroff.a(libgroff_a-font.o): In function `font::load(int*, int)':
/home/carsten/work/download/computer/software/unix/roff/groff/groff/src/libs/libgroff/font.cpp:964:
 undefined reference to `rpl_wcwidth'
*** Error code 1

I did install autoconf, automake, libtool, then ./bootstrap, ./configure, make.
./configure did not complain.

$ g++ --version                                                                 
                                                                                
                               
g++ (NetBSD nb2 20110806) 4.5.3