$ wget http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz
$ tar zxf yaml-0.1.4.tar.gz
$ cd yaml-0.1.4
$ ./configure
$ make
$ sudo make install
$ rvm reinstall ruby-2.0.0 --autolibs=enable
Created
July 6, 2013 14:07
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Fix "ruby installation is missing psych (for YAML output). To eliminate this warning, please install libyaml and reinstall your ruby."
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