To install git-flow on BSD systems, like FreeBSD. OpenBSD or NetBSD, follow these instructions:
$ git clone git://github.com/petervanderdoes/gitflow.git
Then, you can install git-flow, using:
$ sudo gmake install
By default, git-flow will be installed in /usr/local/bin. To change the prefix where git-flow will be installed, simply specify it explicitly, using:
$ sudo make prefix=/opt/local install
This will install git-flow in /opt/local/bin
Install GNU getopt
cd /usr/ports/misc/getopt/
sudo make install
This will install GNU getopt
in /usr/local/bin