Added qrencode and qrdecode - tools for QR code. Qrdecode behaves strangely (Debian package does the same, so probably upstream bug)

svn path=/nixpkgs/trunk/; revision=13304

pkgs/tools/graphics/qrencode/default.nix

@@ -0,0 +1,27 @@
+args :  
+let 
+  lib = args.lib;
+  fetchurl = args.fetchurl;
+
+  version = lib.getAttr ["version"] "3.0.3" args; 
+  buildInputs = with args; [
+    libpng pkgconfig
+  ];
+in
+rec {
+  src = fetchurl {
+    url = "http://megaui.net/fukuchi/works/qrencode/qrencode-${version}.tar.gz";
+    sha256 = "1f5nnbk016casqfprdli50ssv08l0gj5zrd0q4rdvzfwqy67i7vm";
+  };
+
+  inherit buildInputs;
+  configureFlags = [];
+
+  /* doConfigure should be specified separately */
+  phaseNames = ["doConfigure" "doMakeInstall"];
+      
+  name = "qrencode-" + version;
+  meta = {
+    description = "QR code encoder";
+  };
+}