z3.nix

{ lib
, stdenv
, fetchFromGitHub
, python
, fixDarwinDylibNames
, cmake
, javaBindings ? false
, ocamlBindings ? false
, pythonBindings ? false
, jdk ? null
, ocaml ? null
, findlib ? null
, zarith ? null
}:

assert javaBindings -> jdk != null;
assert ocamlBindings -> ocaml != null && findlib != null && zarith != null;

with lib;

stdenv.mkDerivation rec {
  pname = "z3";
  version = "4.8.10";

  src = fetchFromGitHub {
    owner = "Z3Prover";
    repo = pname;
    rev = "z3-${version}";
    sha256 = "1w1ym2l0gipvjx322npw7lhclv8rslq58gnj0d9i96masi3gbycf";
  };

  nativeBuildInputs =
    (optional stdenv.hostPlatform.isDarwin fixDarwinDylibNames)
    ++ [ cmake ];
  buildInputs = [ python ]
    ++ optional javaBindings jdk
    ++ optionals ocamlBindings [ ocaml findlib zarith ]
  ;
  propagatedBuildInputs = [ python.pkgs.setuptools ];
  enableParallelBuilding = true;

  postPatch = optionalString ocamlBindings ''
    export OCAMLFIND_DESTDIR=$ocaml/lib/ocaml/${ocaml.version}/site-lib
    mkdir -p $OCAMLFIND_DESTDIR/stublibs
  '';

  cmakeFlags =
    optional pythonBindings [
      "-DZ3_BUILD_PYTHON_BINDINGS=TRUE"
      "-DPYTHON_EXECUTABLE=${python.interpreter}"
      "-DCMAKE_INSTALL_PYTHON_PKG_DIR=${python.sitePackages}"
    ]
    ++ optional javaBindings [
      "-DZ3_BUILD_JAVA_BINDINGS=TRUE"
    ];

  # configurePhase = concatStringsSep " "
  #   (
  #     [ "${python.interpreter} scripts/mk_make.py --prefix=$out" ]
  #       ++ optional javaBindings "--java"
  #       ++ optional ocamlBindings "--ml"
  #       ++ optional pythonBindings "--python --pypkgdir=$out/${python.sitePackages}"
  #   ) + "\n" + "cd build";

  # postInstall = ''
  #   mkdir -p $dev $lib
  #   mv $out/lib $lib/lib
  #   mv $out/include $dev/include
  # '' + optionalString pythonBindings ''
  #   mkdir -p $python/lib
  #   mv $lib/lib/python* $python/lib/
  #   ln -sf $lib/lib/libz3${stdenv.hostPlatform.extensions.sharedLibrary} $python/${python.sitePackages}/z3/lib/libz3${stdenv.hostPlatform.extensions.sharedLibrary}
  # '' + optionalString javaBindings ''
  #   mkdir -p $java/share/java
  #   mv com.microsoft.z3.jar $java/share/java
  #   moveToOutput "lib/libz3java.${stdenv.hostPlatform.extensions.sharedLibrary}" "$java"
  # '';

  # outputs = [ "out" "lib" "dev" "python" ]
  #   ++ optional javaBindings "java"
  #   ++ optional ocamlBindings "ocaml";

  meta = with lib; {
    description = "A high-performance theorem prover and SMT solver";
    homepage = "https://github.com/Z3Prover/z3";
    license = licenses.mit;
    platforms = platforms.unix;
    maintainers = with maintainers; [ thoughtpolice ttuegel ];
  };
}