Very Computer

I don't seem to have xfs (font server) on my system, and suddenly I
really need it.  I found sources on sunsite under X11, but they don't
even almost compile.  I'm missing a bunch of header files, such as
Xtrans.h, FSproto.h, FS.h and others.  What are these?  I looked in
the include directory under X11 on on sunsite, but couldn't find these
header files.  

Please help.

Thanks.

-Joel Hoffman