autoconf 手冊: http://doc.linuxpk.com/3733.html
automake手冊:http://www.linuxforum.net/books/automake.html#IDX79
libtool的作用:http://www.cnscn.org/htm_data/362/0809/16272.html
kubectl config get-contexts kubectl config use-context <context-name> kubectl config current-context