This module finds an installed SWIG. It sets the following variables:

SWIG_FOUND - set to true if SWIG is found
SWIG_DIR - the directory where swig is installed
SWIG_EXECUTABLE - the path to the swig executable
SWIG_VERSION   - the version number of the swig executable

The minimum required version of SWIG can be specified using the standard syntax, e.g. find_package(SWIG 1.1)

All information is collected from the SWIG_EXECUTABLE so the version to be found can be changed from the command line by means of setting SWIG_EXECUTABLE