libgee_0_8: init at 0.8.6

some vala packages require this specific version

pkgs/development/libraries/libgee/0.8.nix

@@ -0,0 +1,27 @@
+{ stdenv, fetchurl, pkgconfig, glib }:
+
+let
+  ver_maj = "0.8";
+  ver_min = "6";
+in
+stdenv.mkDerivation rec {
+  name = "libgee-${ver_maj}.${ver_min}";
+
+  src = fetchurl {
+    url = "https://download.gnome.org/sources/libgee/${ver_maj}/${name}.tar.xz";
+    sha256 = "1mp3bfghc8qh2v8h2pfhksda22mgy2d5ygm1jr3bir544nr8i4fg";
+  };
+
+  buildInputs = [ glib ];
+  nativeBuildInputs = [ pkgconfig ];
+
+  doCheck = true;
+
+  meta = with stdenv.lib; {
+    description = "Utility library providing GObject-based interfaces and classes for commonly used data structures";
+    license = licenses.lgpl21Plus;
+    platforms = platforms.linux;
+    homepage = "http://live.gnome.org/Libgee";
+    maintainers = with maintainers; [ abbradar ];
+  };
+}

pkgs/top-level/all-packages.nix

@@ -7646,6 +7646,8 @@ in
 
   libgee_0_6 = callPackage ../development/libraries/libgee/0.6.nix { };
 
+  libgee_0_8 = callPackage ../development/libraries/libgee/0.8.nix { };
+
   libgig = callPackage ../development/libraries/libgig { };
 
   libgnome_keyring = callPackage ../development/libraries/libgnome-keyring { };