{ lib, stdenv, fetchurl , ncurses , libX11, xorgproto, buildEnv , useX11 ? stdenv.hostPlatform.isx86 }: let x11deps = [ libX11 xorgproto ]; inherit (lib) optionals; baseOcamlBranch = "4.14"; baseOcamlVersion = "${baseOcamlBranch}.1"; metaocamlPatch = "114"; in stdenv.mkDerivation rec { pname = "ber-metaocaml"; version = metaocamlPatch; src = fetchurl { url = "https://caml.inria.fr/pub/distrib/ocaml-${baseOcamlBranch}/ocaml-${baseOcamlVersion}.tar.gz"; sha256 = "sha256-GDl53JwJyw9YCiMraFMaCbAlqmKLjY1ydEnxRv1vX+4="; }; metaocaml = fetchurl { url = "http://okmij.org/ftp/ML/ber-metaocaml-${metaocamlPatch}.tar.gz"; sha256 = "sha256-vvq3xI4jSAsrXcDk97TPbFDYgO9NcQeN/yBcUbcb/y0="; }; x11env = buildEnv { name = "x11env"; paths = x11deps; }; x11lib = "${x11env}/lib"; x11inc = "${x11env}/include"; prefixKey = "-prefix "; configureFlags = optionals useX11 [ "--enable-flambda" ]; dontStrip = true; buildInputs = [ ncurses ] ++ optionals useX11 x11deps; postConfigure = '' tar -xvzf $metaocaml cd ${pname}-${version} make patch cd .. ''; buildPhase = '' make world make bootstrap make opt.opt make -i install make installopt mkdir -p $out/include ln -sv $out/lib/ocaml/caml $out/include/caml cd ${pname}-${version} make all ''; installPhase = '' make install make install.opt ''; checkPhase = '' cd ${pname}-${version} make test make test-compile make test-native cd .. ''; passthru = { nativeCompilers = true; }; meta = with lib; { description = "Multi-Stage Programming extension for OCaml"; homepage = "https://okmij.org/ftp/ML/MetaOCaml.html"; license = with licenses; [ /* compiler */ qpl /* library */ lgpl2 ]; maintainers = with maintainers; [ thoughtpolice ]; branch = baseOcamlBranch; platforms = with platforms; linux ++ darwin; broken = stdenv.isAarch64 || stdenv.isMips; longDescription = '' A simple extension of OCaml with the primitive type of code values, and three basic multi-stage expression forms: Brackets, Escape, and Run. ''; }; }