🚀 go-pugleaf

I am trying to integrate Jeff Peck's (of Sun) Suntools interface to
GNU Emacs (version 18.55).  I have followed the instructions in
SUN-SUPPORT.  My problem is that there is an extra c file called
sunfns.c, which I assume I am to include in the build of the temacs =>
xemacs => emacs image.  There are, however, no instructions on this
point, and I seem to have got it wrong.

When I include it in the image, the C symbols that get defined by the
DEFUN C-language macro show up in the symbol table as they should, but
the corresponding lisp front end functions are not callable from in
the emacs.  For example, the symbols Fsun_window_init and
Ssun_window_init are in the symbol table, but when I evaluate
(sun-window-init) from within Emacs, I get "symbol's value as a
function is void" or something like that.

Is there a particular place in the order I am to put it?  Before
lastfile.o?  After?  I'm sort of stumped.

Thanks for your help.