HowTo: Install OpenARC from src
This was today tested by me on Ubuntu Xenial 16.04 LTS with commit #94c7639
# apt-get install autotools-dev pkg-config autoconf automake libtool libbsd-dev libssl-dev libopendkim-dev -y
$ git clone https://github.com/trusteddomainproject/OpenARC.git
$ cd OpenARC/
$ git checkout develop
$ git fetch --all
$ git pull
$ autoreconf -fvi
$ ./configure
$ make
$ sudo make install
# echo "/usr/local/lib" >> /etc/ld.so.conf.d/x86_64-linux-gnu.conf
# ldconfig
EDIT:
If you rather install some deb packages have a look at this OBS repository. I did not test these packages and do not know Andreas Schulze, though.