In  order to compile, from the checkout directory, run the following

aclocal
libtoolize
automake --add-missing
autoreconf
./configure
make

create a conf file named tdnf.conf under \etc\tdnf with the following content

[main]
gpgcheck=1
installonly_limit=3
clean_requirements_on_remove=true
repodir=/etc/yum.repos.d
cachedir=/var/cache/tdnf

Now configure repo files under /etc/yum.repos.d or your repodir following 
.repo format of dnf/yum.

You should now have a client executable named tdnf under tools/cli
To test, run ./tools/cli/tdnf list installed

You will see a list of installed packages and their related info