🚀 go-pugleaf

I am trying to use mbuilder to turn a trivial c subroutine into a
module:

void test(x,y)
double x, y;
{
  y = x*x;
}

I used no input ports and set x=3.0 using the <<Constant Value>> in
the connection window. 

The double value of y was sent to an output port "y out" which was 
defined a parameter in the output ports window.

Here is the error I get

--- test.mdw.o ---
        /usr/explorer/lib/cxMdw test

Creating Module Data Wrapper subprogram from modules resources
in file ./test.mres.
Module Builder: Module resources missing field of output port.
Port number 0, Expected field cxP_Out_y_out->type, Found field
->p.cx_param_double.val
 
Module Builder: Error: Exiting MDW code generator.
 
*** Error code 255
smake: 1 error



Could someone explain what I am doing wrong, what general concept I am
not grasping? I am trying to make as simple a module as possible and
then build up from there. I followed the example (Gradient3D) in the
_Explorer_Module_Writer's_Guide" and of course it worked, but it was
in FORTRAN and pretty complicated.

Thanks
Will Heyman		wsh8z@virginia.edu	UVA Applied Math