gtk-vnc: add new lib for gnome

pkgs/desktops/gnome-3/3.16/core/gtk-vnc/default.nix

@@ -0,0 +1,30 @@
+{ stdenv, fetchurl, gdk_pixbuf, pkgconfig, gtk3, cyrus_sasl
+, gnutls, gobjectIntrospection, vala, intltool, libgcrypt }:
+
+stdenv.mkDerivation rec {
+  versionMajor = "0.5";
+  versionMinor = "4";
+  moduleName   = "gtk-vnc";
+
+  name = "${moduleName}-${versionMajor}.${versionMinor}";
+
+  src = fetchurl {
+    url = "mirror://gnome/sources/${moduleName}/${versionMajor}/${name}.tar.xz";
+    sha256 = "1rwwdh7lb16xdmy76ca6mpqfc3zfl3a4bkcr0qb6hs6ffrxak2j8";
+  };
+
+  buildInputs = [ pkgconfig gtk3 gdk_pixbuf gnutls cyrus_sasl
+                  gobjectIntrospection vala intltool libgcrypt ];
+
+  configureFlags = [ "--with-gtk=3.0" ];
+
+  enableParallelBuilding = true;
+
+  meta = with stdenv.lib; {
+    homepage = https://wiki.gnome.org/Projects/gtk-vnc;
+    description = "A VNC viewer widget for GTK+";
+    license = licenses.lgpl2;
+    maintainers = with maintainers; [ lethalman ];
+    platforms = platforms.linux;
+  };
+}

pkgs/desktops/gnome-3/3.16/default.nix

@@ -151,6 +151,8 @@ let
 
   gtksourceview = callPackage ./core/gtksourceview { };
 
+  gtk-vnc = callPackage ./core/gtk-vnc { };
+
   gucharmap = callPackage ./core/gucharmap { };
 
   gvfs = pkgs.gvfs.override { gnome = gnome3; gnomeSupport = true; };