libdiscid update from 0.2.2 to 0.6.1

pkgs/development/libraries/libdiscid/default.nix

@@ -1,26 +1,21 @@
 { stdenv, fetchurl, cmake, pkgconfig }:
 
 stdenv.mkDerivation rec {
-  name = "libdiscid-0.2.2";
+  name = "libdiscid-0.6.1";
 
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ cmake ];
 
   src = fetchurl {
-    url = "http://users.musicbrainz.org/~matt/${name}.tar.gz";
-    sha256 = "00l4ln9rk0vqf67iccwqrgc9qx1al92i05zylh85kd1zn9d5sjwp";
+    url = "http://ftp.musicbrainz.org/pub/musicbrainz/libdiscid/${name}.tar.gz";
+    sha256 = "1mbd5y9056638cffpfwc6772xwrsk18prv1djsr6jpfim38jpsxc";
   };
 
-  # developer forgot to update his version number
-  # this is propagated to pkg-config
-  preConfigure = ''
-    substituteInPlace "CMakeLists.txt" \
-      --replace "PROJECT_VERSION 0.1.1" "PROJECT_VERSION 0.2.2"
-  '';
-
-  meta = {
+  meta = with stdenv.lib; {
     description = "A C library for creating MusicBrainz DiscIDs from audio CDs";
     homepage = http://musicbrainz.org/doc/libdiscid;
-    license = stdenv.lib.licenses.lgpl21;
+    maintainers = with maintainers; [ emery ];
+    license = licenses.lgpl21;
+    platforms = platforms.all;
   };
 }