Add libyaml and PyYAML.

svn path=/nixpkgs/trunk/; revision=19477

pkgs/development/libraries/libyaml/default.nix

@@ -0,0 +1,16 @@
+{stdenv, fetchurl}:
+
+stdenv.mkDerivation {
+  name = "libyaml";
+
+  src = fetchurl {
+    url = http://pyyaml.org/download/libyaml/yaml-0.1.3.tar.gz;
+    sha256 = "a8bbad7e5250b3735126b7e3bd9f6fce9db19d6be7cc13abad17a24b59ec144a";
+  };
+
+  meta = {
+    homepage = http://pyyaml.org/;
+    description = "A YAML 1.1 parser and emitter written in C";
+    license = "free";
+  };
+}