First install the nix package manager: https://nixos.org/nix/
Then install the dependencies:
nix-env -f "<nixpkgs>" -iA haskellPackages.ghc
nix-env -f "<nixpkgs>" -iA haskellPackages.cabal-install
nix-env -f "<nixpkgs>" -iA haskellPackages.Agda
cabal update
cabal install ieee
cabal install text
Finally build ial and cedille:
git svn clone https://svn.divms.uiowa.edu/repos/clc/projects/agda/ial
git svn clone https://svn.divms.uiowa.edu/repos/clc/projects/lambda-encodings/implementations/cedille
ln -s ial cedille
make -C ial
make -C cedille