Log Message:
Update swig to 1.3.38.  It required by x11/ruby-wxruby with ruby193.

* Remove descriptino about gnuradio incompatibility since it related
  packages are already using swig2.

Version: 1.3.38 (31 January 2009)

Tagline: SWIG is a compiler that integrates C and C++ with languages
         including Perl, Python, Tcl, Ruby, PHP, Java, Ocaml, Lua,
         Scheme (Guile, MzScheme, CHICKEN), Pike, C#, Modula-3,
         Common Lisp (CLISP, Allegro CL, CFFI, UFFI), Octave and R.

SWIG reads annotated C/C++ header files and creates wrapper code (glue
code) in order to make the corresponding C/C++ libraries available to
the listed languages, or to extend C/C++ programs with a scripting
language.