z3: 4.4.1 -> 4.5.0

  python = python2;

in stdenv.mkDerivation rec {

  name = "z3-${version}";

  version = "4.4.1";

  version = "4.5.0";

  src = fetchFromGitHub {

    owner  = "Z3Prover";

    repo   = "z3";

    rev    = "z3-${version}";

    sha256 = "1ix100r1h00iph1bk5qx5963gpqaxmmx42r2vb5zglynchjif07c";

    sha256 = "0ssp190ksak93hiz61z90x6hy9hcw1ywp8b2dzmbhn6fbd4bnxzp";

  };

  buildInputs = [ python ];

  enableParallelBuilding = true;

  configurePhase = "${python.interpreter} scripts/mk_make.py --prefix=$out && cd build";

  # z3's install phase is stupid because it tries to calculate the

  # python package store location itself, meaning it'll attempt to

  # write files into the nix store, and fail.

  soext = if stdenv.system == "x86_64-darwin" then ".dylib" else ".so";

  installPhase = ''

    mkdir -p $out/bin $out/${python.sitePackages} $out/include

    cp ../src/api/z3*.h       $out/include

    cp ../src/api/c++/z3*.h   $out/include

    cp z3                     $out/bin

    cp libz3${soext}          $out/lib

    cp libz3${soext}          $out/${python.sitePackages}

    cp z3*.pyc                $out/${python.sitePackages}

    cp ../src/api/python/*.py $out/${python.sitePackages}

  configurePhase = ''

    ${python.interpreter} scripts/mk_make.py --prefix=$out --python --pypkgdir=$out/${python.sitePackages}

    cd build

  '';

  meta = {