FFI: how to avoid naming arguments in C functions

[mantielero]

Is it possible to avoid giving names to arguments in the functions?

I have the following in the C header:
    
    
    DLLEXPORT void gr_polyline(int, double *, double *);
    
    Run

and in order to make it work, I have to do:
    
    
    proc gr_polyline*(a:cint, b:ptr cdouble, c:ptr cdouble)    
{.importc,dynlib: libName.}
    
    Run

where I have to add a, b, c just to make it work.