问题
gitconfig(1):
If not set explicitly with --file, there are four files where git config will search for configuration options:
...
$(prefix)/etc/gitconfig
System-wide configuration file.
What is $(prefix) on $(prefix)/etc/gitconfig?
回答1:
The prefix environment variable git was compiled with. Usually, it's empty, so the path is /etc/gitconfig.
来源：https://stackoverflow.com/questions/19713622/what-is-prefix-on-prefix-etc-gitconfig