This package contains only the swig program itself and the base
definitions; it is useless alone. You only need this package if you
are building software that uses SWIG. You will also need a swig-LANG
package, where LANG is the language you are working with
(e.g. swig-perl, swig-python, etc.).
Still todo: import other swig runtimes, move existing swig package to
swig11 and update dependencies, and add the new swig packages to
devel/Makefile.