compiling xgrass

[markp at per.dms.csiro.au]

I'm compiling grass 4.1beta and having problems with the xgrass stage. The system
is sun os 4.1.2, under OW3.0, also with X11R5 and Motif 1.2. I get the following messages


"/usr/include/X11/Xm/Xm.h", line 1385: syntax error at or near variable name "XmImGetXIM"
"/usr/include/X11/Xm/Xm.h", line 1385: unknown size
*** Error code 1
make: Fatal error: Command failed for target `OBJ.sun4/abwcolr.o'
Current working directory /chardonnay/markp/GRASS/src/xgrass/libes/Xgd
*** Error code 1
make: Fatal error: Command failed for target `all'

Whats the problem.
Thanks