XDRIVER problems on HP 9000/710

[fsbo/S=A.PRASAD/OU1=S24L05A at mhs.attmail.com]

         Hi Grass-Users: I am trying to compile grass4.1 (Spring 1993
         Edition) on a HP 9000/710 workstation running on HP-UX 9.01 and
         HP-VUE 3.0. As usual the problem is with XDRIVER.... Any body out
         there who has compiled grass4.1 successfully on HP workstations? I
         list below the error...where can it find the files...if not, any
         modifications to be done for HP??? ...THANKS  KINDLY!! Prasad
         
         
         /npi/grass4.1/source/src/display/devices/XDRIVER/XDRIVER
          mkdir OBJ.hp
          make -f OBJ.hp/make.rules
         
          rm -f version.h
          echo '#define WIN_NAME "GRASS 4.1"' > version.h
          rm -f OBJ.hp/SWITCHER.o
          cc -D_NO_PROTO -I/npi/grass4.1/source/src/include -DUSE_TERMIO -c
          SWITCHER.c
          ./includes.h: 9: Can't find include file X11/Xos.h
          ./includes.h: 11: Can't find include file X11/Xlib.h
          ./includes.h: 12: Can't find include file X11/Xutil.h
          *** Error code 1
         
          Stop.
          *** Error code 1
         
          Stop.
          GISGEN failure at STEP: src/display/devices/XDRIVER
                  


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