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diff -ur stfl-0.24/Makefile stfl-0.24.new/Makefile --- stfl-0.24/Makefile 2015-02-12 07:14:33.000000000 -0600 ... struct stfl_widget_type;
$ tar xzf $HOME/Downloads/swig-3.0.12.tar.gz $ cd swig-3.0.12 ... $ make $ sudo make install