Libyaml

mkdir -p /root/libyaml
cd /root/libyaml
wget http://pyyaml.org/download/libyaml/yaml-0.1.7.tar.gz
tar -zxvf yaml-0.1.7.tar.gz
cd yaml-0.1.7
./configure
make
make install
cd /root
rm -rf /root/libyaml