diff --git a/pkgs/development/libraries/db4/db4-4.5.20.nix b/pkgs/development/libraries/db4/db4-4.5.20.nix
new file mode 100644
index 000000000000..1b8e760886c4
--- /dev/null
+++ b/pkgs/development/libraries/db4/db4-4.5.20.nix
@@ -0,0 +1,14 @@
+{stdenv, fetchurl, cxxSupport ? true, compat185 ? true}:
+
+stdenv.mkDerivation ({
+  name = "db4-4.5.20";
+  builder = ./builder.sh;
+  src = fetchurl {
+    url = http://download.oracle.com/berkeley-db/db-4.5.20.NC.tar.gz;
+    md5 = "1bfa6256f8d546b97bef1f448ab09875";
+  };
+  configureFlags = [
+    (if cxxSupport then "--enable-cxx" else "--disable-cxx")
+    (if cxxSupport then "--enable-compat185" else "--disable-compat185")
+  ];
+} // (if stdenv.system == "i686-cygwin" then {patches = [./cygwin.patch];} else {}))