install MAPGEN

[Shyh-yuan Liu]

Hi!
Can you tell me how to install the "MAPGEN" in Sun4.
Use the gmake4.1 and display following message:
#############################################################
/users/grass4.1/src.related/mapgen/mapgen/src
  mkdir OBJ.sun4
  make -f OBJ.sun4/make.rules 

rm -f OBJ.sun4/legend.o
cc -I../../graphics/plotter -I../include -O -c legend.c
mv legend.o OBJ.sun4/legend.o
cc -s -o /users/grass4.1/sun4/mapgen/bin/legend OBJ.sun4/legend.o  ../../lib/LIB.sun4/libgen.a ../../lib/LIB.sun4/libgraph.a -lm  
ld: ../../lib/LIB.sun4/libgraph.a: No such file or directory
*** Error code 4
make: Fatal error: Command failed for target `/users/grass4.1/sun4/mapgen/bin/legend'
Current working directory /users/grass4.1/src.related/mapgen/mapgen/src
*** Error code 1
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Thanks for any help!