eigen3_3: init at 3.3.1; not compatible enough with 3.2.5 to switch the default immediately

pkgs/development/libraries/eigen/3.3.nix

@@ -0,0 +1,25 @@
+{stdenv, fetchurl, cmake}:
+
+let
+  version = "3.3.1";
+in
+stdenv.mkDerivation {
+  name = "eigen-${version}";
+  
+  src = fetchurl {
+    url = "http://bitbucket.org/eigen/eigen/get/${version}.tar.gz";
+    name = "eigen-${version}.tar.gz";
+    sha256 = "141axgv5kykq7125scisjvnfcdx7qcj8n8zlk7g09r7fhqgjr79w";
+  };
+  
+  nativeBuildInputs = [ cmake ];
+  
+  meta = with stdenv.lib; {
+    description = "C++ template library for linear algebra: vectors, matrices, and related algorithms";
+    license = licenses.lgpl3Plus;
+    homepage = http://eigen.tuxfamily.org ;
+    platforms = platforms.unix;
+    maintainers = with stdenv.lib.maintainers; [ sander urkud raskin ];
+    inherit version;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -6969,6 +6969,7 @@ in
   eclib = callPackage ../development/libraries/eclib {};
 
   eigen = callPackage ../development/libraries/eigen {};
+  eigen3_3 = callPackage ../development/libraries/eigen/3.3.nix {};
 
   eigen2 = callPackage ../development/libraries/eigen/2.0.nix {};