indicator libraries: init at 12.10

The indicator libraries for GTK2 and GTK3.

The bindings for Mono do not work yet because of some issues with Perl in
gtk-sharp-2 and an Unhandled Exception caused by building with multiple cores:
https://aur.archlinux.org/packages/libindicate-sharp/#comment-290385

Some packages have TODOs for the indicator libraries,
since it is an optional dependency for most packages.
These packages have not been updated by this commit.

pkgs/development/libraries/libindicate/default.nix

@@ -0,0 +1,62 @@
+# TODO: Resolve the issues with the Mono bindings.
+
+{ stdenv, fetchurl, lib, file
+, pkgconfig, autoconf
+, glib, dbus_glib, libdbusmenu-glib
+, gtkVersion, gtk2 ? null, gtk3 ? null
+, python, pygobject, pygtk, gobjectIntrospection, vala, gnome_doc_utils
+, monoSupport ? false, mono ? null, gtk-sharp ? null
+ }:
+
+with lib;
+
+stdenv.mkDerivation rec {
+  name = let postfix = if gtkVersion == "2" && monoSupport then "sharp" else "gtk${gtkVersion}";
+          in "libindicate-${postfix}-${version}";
+  version = "${versionMajor}.${versionMinor}";
+  versionMajor = "12.10";
+  versionMinor = "1";
+
+  src = fetchurl {
+    url = "${meta.homepage}/${versionMajor}/${version}/+download/libindicate-${version}.tar.gz";
+    sha256 = "10am0ymajx633b33anf6b79j37k61z30v9vaf5f9fwk1x5cw1q21";
+  };
+
+  nativeBuildInputs = [ pkgconfig autoconf ];
+
+  buildInputs = [
+    glib dbus_glib libdbusmenu-glib
+    python pygobject pygtk gobjectIntrospection vala gnome_doc_utils
+  ] ++ (if gtkVersion == "2"
+    then [ gtk2 ] ++ optionals monoSupport [ mono gtk-sharp ]
+    else [ gtk3 ]);
+
+  postPatch = ''
+    substituteInPlace configure.ac \
+      --replace '=codegendir pygtk-2.0' '=codegendir pygobject-2.0' \
+      --replace 'pyglib-2.0-python$PYTHON_VERSION' 'pyglib-2.0-python'
+    autoconf
+    substituteInPlace {configure,ltmain.sh,m4/libtool.m4} \
+      --replace /usr/bin/file ${file}/bin/file
+  '';
+
+  configureFlags = [
+    "CFLAGS=-Wno-error"
+    "--sysconfdir=/etc"
+    "--localstatedir=/var"
+    "--with-gtk=${gtkVersion}"
+  ];
+
+  installFlags = [
+    "sysconfdir=\${out}/etc"
+    "localstatedir=\${TMPDIR}"
+  ];
+
+  meta = {
+    description = "Library for raising indicators via DBus";
+    homepage = "https://launchpad.net/libindicate";
+    license = with licenses; [ lgpl21 lgpl3 ];
+    platforms = platforms.linux;
+    maintainers = [ maintainers.msteen ];
+  };
+}