./LEDA
directory and copy file $LEDAROOT/incl/LEDA/graphwin.h
as ./LEDA/graphwin.h
./LEDA/graphwin.h
Replace line graph& get_graph() const { return *gr_p;
}
by line GRAPH<string,string>& get_graph() const {
return
*gr_p; }
Replace also line graph *gr_p; // graph
by line GRAPH<string,string> *gr_p; // graph
g++ -I. -I$LEDAROOT/incl -L$LEDAROOT -L/usr/X11R6/lib
combin.c -o
combin -lW -lP -lG -lL -lX11 -lm
./combin
and enjoy.