guile and Fortran?

[Paul dot Emsley at chem dot gla dot ac dot uk]

       Hello.

       I have an old fortran library that I would like to extend with
      guile (i.e, I want to write scheme programs that use these
      functions).

      What is the best/quickest (hopefully the same) way of doing
      this? 

      (I am something of a guile neophite (although hoping to change)).

      Paul.