🚀 go-pugleaf

Sorry to interrupt the extremely exciting flame war going on, but I have
a question.  Right now it is rather difficult to combine, say fortran code
with C, or indeed any language with any other.  This means, for all practical
purposes, that code must be written in one language only (ignoring cases
like emacs).  Has any thought been given to the possibility of making the
GNU language products (when they all come out) able to speak to one another?
The idea being that I could write some code in C, some in Fortran, some in 
LISP, compile link and go.  I realize this would be difficult but is it so
hard that it is not even worth thinking about?

We now return you to the ubiquitous discussion of the meaning of 'free'.

Alan