You will need to install OPAM, for instance via APT on Ubuntu or brew on macOS:
apt install -y opam
brew install opam
If you have set up OPAM in the past, you can probably skip the next step. EBA should work with the 4.07 version of OCaml --- let us know if it doesn't.
If you are installing OPAM for the first time:
opam init --auto-setup
opam switch 4.07.0
eval `opam config env`
Setup customized CIL for EBA:
git clone https://github.com/IagoAbal/eba-cil.git
opam pin add -n cil eba-cil/
Build EBA itself:
git clone https://github.com/IagoAbal/eba.git
opam pin add -y -n eba eba/
opam install eba --deps-only
cd eba
make
And you will find the EBA binary in bin/eba.