# Retreive the patch file and name it idn.patch

$ wget http://rubyforge.org/frs/download.php/8555/idn-0.0.2.tar.gz

$ tar -zxvf idn-0.0.2.tar.gz
x idn-0.0.2/
x idn-0.0.2/README
x idn-0.0.2/CHANGES
x idn-0.0.2/LICENSE
x idn-0.0.2/NOTICE
x idn-0.0.2/Rakefile
x idn-0.0.2/ext/
x idn-0.0.2/ext/idn.c
x idn-0.0.2/ext/idna.c
x idn-0.0.2/ext/punycode.c
x idn-0.0.2/ext/stringprep.c
x idn-0.0.2/ext/idn.h
x idn-0.0.2/ext/extconf.rb
x idn-0.0.2/test/
x idn-0.0.2/test/tc_Idna.rb
x idn-0.0.2/test/tc_Punycode.rb
x idn-0.0.2/test/tc_Stringprep.rb
x idn-0.0.2/test/ts_IDN.rb

$ cd idn-0.0.2

$ patch -p1 -i ../idn.patch
patching file ext/idna.c
patching file ext/punycode.c
patching file ext/stringprep.c

$ rake install