It sounds like you are trying to use OMShell or maybe OMNotebook to pass classes to the compiler. If you do so, you need to pass all functions at the same time because some type-checking is done if I recall correctly. Otherwise I would need to see some sample code.

Ok but how to pass functions at the same time ?
I write the functions with OMEdit and call them from OMShell. For instance, with two simple functions "Sum" and "Average" :
/////////////////////////////////
function Sum
  input Real a;
  input Real b;
  output Real s;
algorithm
  s:=a + b;
end Sum;
///////////////////////////////////
function Average
  input Real x;
  input Real y;
  output Real z;
algorithm
  z:=Sum(x, y) / 2;
end Average;
/////////////////////////////////
I cannot save the second function with OMEdit because of the call of the first one that generates an error message.  Do I forget something ?

Thanks a lot for your help.

Yes, it seems OMEdit could not reliably create functions. I have changed it to no longer do type-checking of functions (in r8534).

I've installed r8526 for Windows (is r8534 available somewhere ?)... and now, it's worse, I cannot even create a new function from OMEdit !

"File->New Function->toto->Error has occurred".