make Xgrass

[Shyh-yuan Liu]

Hi!
I gmake XGRASS in SUN and display the Error.
the following:
***************************************************
/users/grass4.1/src/xgrass/libes/Xgi
  make -f OBJ.sun4/make.rules 

rm -f OBJ.sun4/Interact.o
cc -O -D_NO_PROTO    -I/users/grass4.1/src/include  -c Interact.c
"Interact.c", line 797: warning: illegal combination of pointer and integer, op =
"Interact.c", line 877: warning: illegal combination of pointer and integer, op =
"Interact.c", line 961: warning: illegal combination of pointer and integer, op =
"Interact.c", line 1285: warning: illegal pointer combination
"Interact.c", line 1545: primitive_class undefined
"Interact.c", line 1545: arm_and_activate undefined
"Interact.c", line 1552: primitive_class undefined
"Interact.c", line 1552: arm_and_activate undefined
"Interact.c", line 1559: primitive_class undefined
"Interact.c", line 1559: arm_and_activate undefined
*** Error code 1
make: Fatal error: Command failed for target `OBJ.sun4/Interact.o'
Current working directory /users/grass4.1/src/xgrass/libes/Xgi
*** Error code 1
make: Fatal error: Command failed for target `all'
*********************************************************************
Can you tell me how can I do.
Thanks in advance.