libproxy: update to build with gcc47, add glib

pkgs/development/libraries/libproxy/default.nix

···
-{stdenv, fetchurl, cmake, zlib}:
+{ stdenv, fetchurl, pkgconfig, cmake, zlib, glib }:
 
 stdenv.mkDerivation rec {
-  name = "libproxy-0.4.7";
+  name = "libproxy-0.4.11";
   src = fetchurl {
     url = "http://libproxy.googlecode.com/files/${name}.tar.gz";
-    sha256 = "15rp97g3s2xkc842p5qfm8kx3p4awvrwrpl6w71a76qk224abq4g";
+    sha256 = "0jw6454gxjykmbnbh544axi8hzz9gmm4jz1y5gw1hdqnakg36gyw";
   };
-  buildInputs = [cmake zlib];
+
+  nativeBuildInputs = [ pkgconfig cmake ];
+  propagatedBuildInputs = [ zlib ]
+    # now some optional deps, but many more are possible
+    ++ [ glib ];
 }