sun4

Without the advantage of seeing the messages you are getting, there may be one
of two problems:

1) you did not edit the lists/local file which tells the compiler which
     display device you are using, or

2) you haven't a path to the X include files needed to compile those modules
    in the "display section" that require them. See the comment lines in the
    following file:

  ../src/display/devices/XDRIVER/XDRIVER/Gmakefile