diff --git a/openslide/python.nix b/openslide/python.nix
deleted file mode 100644
index 67d47cb..0000000
--- a/openslide/python.nix
+++ /dev/null
@@ -1,39 +0,0 @@
-with import <nixpkgs> {};
-
-let
-
-  openslide = import ./default.nix;
-
-in
-
-  python27Packages.buildPythonPackage rec {
-    version = "1.1.1";
-    name = "openslide-python-${version}";
-
-    src = fetchFromGitHub {
-      owner = "openslide";
-      repo = "openslide-python";
-      rev = "v${version}";
-      sha256 = "1is8g8vy8s1xgfw8q76gdx8ygwvj56cl0vxfd3lx0iys15wzs7a4";
-    };
-
-    patches = [ ./zero-size-test-skip.patch ];
-
-    postPatch = ''
-      sed -i 's|LoadLibrary('\'''libopenslide.so.0'\''')|LoadLibrary('\'''${openslide}/lib/libopenslide.so.0'\''')|' openslide/lowlevel.py
-    '';
-
-    buildInputs = [
-      openslide
-    ];
-
-    propagatedBuildInputs = [
-      python27Packages.pillow
-    ];
-
-    meta = {
-      homepage = "http://openslide.org";
-      description = "Python bindings for OpenSlide.";
-      license = licenses.lgpl2;
-    };
-  }
diff --git a/pkgs/all-packages.nix b/pkgs/all-packages.nix
index 78c1e2f..44e81af 100644
--- a/pkgs/all-packages.nix
+++ b/pkgs/all-packages.nix
@@ -7,4 +7,8 @@ self: pkgs: with pkgs; {
   meraculous = callPackage ./meraculous.nix { };
 
   openfoam = callPackage ./openfoam.nix { };
+
+  openslide = callPackage ./openslide { };
+  openslide-python = callPackage ./openslide/python.nix { };
 }
+
diff --git a/openslide/default.nix b/pkgs/openslide/default.nix
similarity index 64%
rename from openslide/default.nix
rename to pkgs/openslide/default.nix
index 8ea04eb..cb25295 100644
--- a/openslide/default.nix
+++ b/pkgs/openslide/default.nix
@@ -1,4 +1,5 @@
-with import <nixpkgs> { };
+{ stdenv, autoreconfHook, pkgconfig, fetchFromGitHub
+, zlib, openjpeg, libtiff, cairo, libpng, gdk_pixbuf, libxml2, sqlite }:
 
 stdenv.mkDerivation rec {
   version = "3.4.1";
@@ -24,6 +25,11 @@ stdenv.mkDerivation rec {
     sqlite
   ];
 
+  # Not sure why this Windows test isn't failing under Linux
+  postPatch = ''
+    sed -i -e 's|AM_CONDITIONAL(\[WINDOWS_RESOURCES\], \[test x$RC != x\])|AM_CONDITIONAL([WINDOWS_RESOURCES], [false])|' configure.ac
+  '';
+
   meta = with stdenv.lib; {
     homepage = http://openslide.org;
     description = "A C library that provides a simple interface to read whole-slide images.";
diff --git a/pkgs/openslide/python.nix b/pkgs/openslide/python.nix
new file mode 100644
index 0000000..8d0a7ce
--- /dev/null
+++ b/pkgs/openslide/python.nix
@@ -0,0 +1,34 @@
+{ lib, fetchFromGitHub
+, python27Packages, openslide }:
+
+python27Packages.buildPythonPackage rec {
+  version = "1.1.1";
+  name = "openslide-python-${version}";
+
+  src = fetchFromGitHub {
+    owner = "openslide";
+    repo = "openslide-python";
+    rev = "v${version}";
+    sha256 = "1is8g8vy8s1xgfw8q76gdx8ygwvj56cl0vxfd3lx0iys15wzs7a4";
+  };
+
+  patches = [ ./zero-size-test-skip.patch ];
+
+  postPatch = ''
+    sed -i 's|LoadLibrary('\'''libopenslide.so.0'\''')|LoadLibrary('\'''${openslide}/lib/libopenslide.so.0'\''')|' openslide/lowlevel.py
+  '';
+
+  buildInputs = [
+    openslide
+  ];
+
+  propagatedBuildInputs = [
+    python27Packages.pillow
+  ];
+
+  meta = with lib; {
+    homepage = "http://openslide.org";
+    description = "Python bindings for OpenSlide.";
+    license = licenses.lgpl2;
+  };
+}
diff --git a/openslide/zero-size-test-skip.patch b/pkgs/openslide/zero-size-test-skip.patch
similarity index 100%
rename from openslide/zero-size-test-skip.patch
rename to pkgs/openslide/zero-size-test-skip.patch