{ stdenv, fetchurl, perl, python, ruby, bison, gperf, flex
, pkgconfig, which, gettext, gobjectIntrospection
, gtk2, gtk3, wayland, libwebp, enchant, sqlite
, libxml2, libsoup, libsecret, libxslt, harfbuzz, xorg
, gst-plugins-base
, withGtk2 ? false
, enableIntrospection ? !stdenv.isDarwin
, enableCredentialStorage ? !stdenv.isDarwin
, readline, libedit
}:

assert stdenv.isDarwin -> !enableIntrospection;
assert stdenv.isDarwin -> !enableCredentialStorage;

with stdenv.lib;
stdenv.mkDerivation rec {
  name = "webkitgtk-${version}";
  version = "2.4.9";

  meta = with stdenv.lib; {
    description = "Web content rendering engine, GTK+ port";
    homepage = "http://webkitgtk.org/";
    license = licenses.bsd2;
    platforms = platforms.linux;
    maintainers = [];
  };

  src = fetchurl {
    url = "http://webkitgtk.org/releases/${name}.tar.xz";
    sha256 = "0r651ar3p0f8zwl7764kyimxk5hy88cwy116pv8cl5l8hbkjkpxg";
  };

  CC = "cc";

  prePatch = ''
    patchShebangs Tools/gtk
  '';
  patches = [
    ./webcore-svg-libxml-cflags.patch
  ] ++ optionals stdenv.isDarwin [
    ./impure-icucore.patch
    ./quartz-webcore.patch
    ./libc++.patch
    ./plugin-none.patch
  ];

  configureFlags = with stdenv.lib; [
    "--disable-geolocation"
    (optionalString enableIntrospection "--enable-introspection")
  ] ++ optional withGtk2 [
    "--with-gtk=2.0"
  ] ++ optionals (withGtk2 || stdenv.isDarwin) [
    "--disable-webkit2"
  ] ++ optionals stdenv.isDarwin [
    "--disable-x11-target"
    "--enable-quartz-target"
    "--disable-web-audio"
  ] ++ optionals (!enableCredentialStorage) [
    "--disable-credential-storage"
  ];

  NIX_CFLAGS_COMPILE = "-DU_NOEXCEPT=";

  dontAddDisableDepTrack = true;

  nativeBuildInputs = [
    perl python ruby bison gperf flex
    pkgconfig which gettext gobjectIntrospection
  ];

  buildInputs = [
    gtk2 libwebp enchant
    libxml2 libxslt
    gst-plugins-base sqlite xorg.libXt
  ] ++ optionals enableCredentialStorage [
    libsecret
  ] ++ (if stdenv.isDarwin then [
    readline libedit
  ] else [
    wayland
  ]);

  propagatedBuildInputs = [
    libsoup harfbuzz/*icu in *.la*/
    (if withGtk2 then gtk2 else gtk3)
  ];

  # Still fails with transient errors in version 2.4.9.
  enableParallelBuilding = false;

}