安装libyaml
wget http://pyyaml.org/download/libyaml/yaml-0.1.4.tar.gz
tar xzvf yaml-0.1.4.tar.gz
cd yaml-0.1.4
./configure --prefix=/usr/local
make
make install
“It seems your ruby installation is missing psych (for YAML output). To eliminate this warning, please install libyaml and reinstall your ruby”警告。
安装ruby
tar -zxf ruby-1.9.3-p448.tar.gz
cd ruby-1.9.3-p448
./configure --enable-shared --disable-install-doc
make
make install
