GNU M4 - Git Repositories
Browsing the Git Repository
You can Browse the Git repository of this project with your web browser. This gives you a good picture of the current status of the source files. You may also view the complete histories of any file in the repository as well as differences among two versions.
Getting a Copy of the Git Repository
Anonymous clone:
git clone https://git.savannah.gnu.org/git/m4.git
Member clone:
git clone <membername>@git.savannah.gnu.org:/srv/git/m4.git