I met the question from work. Web developer wants me to install gd2 extension and xmlrpc extension for PHP5.5 in Ubuntu 12.04 which is a running web-server for add new function for new web.
I tried it and I can install xmlrpc extension successfully but I can't install gd2 by using apt-get install. So I wonder where can I download gd2 extension for PHP5.5 and how to install it from the download?
Detail shows in below pictures: