$ curl -O https://codeload.github.com/git/git/tar.gz/master
$ tar -zxvf master
$ cd git-master
$ make NO_OPENSSL=YesPlease NO_CURL=YesPlease prefix=/usr all
$ sudo make NO_OPENSSL=YesPlease NO_CURL=YesPlease prefix=/usr install
$ git --version
git version 1.8.4.GIT