uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/development/python-modules/python-mapnik/default.nix

@@ -0,0 +1,75 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, isPyPy
+, python
+, pillow
+, pycairo
+, pkg-config
+, boost
+, cairo
+, harfbuzz
+, icu
+, libjpeg
+, libpng
+, libtiff
+, libwebp
+, mapnik
+, proj
+, zlib
+}:
+
+buildPythonPackage rec {
+  pname = "python-mapnik";
+  version = "unstable-2020-02-24";
+
+  src = fetchFromGitHub {
+    owner = "mapnik";
+    repo = "python-mapnik";
+    rev = "7da019cf9eb12af8f8aa88b7d75789dfcd1e901b";
+    sha256 = "0snn7q7w1ab90311q8wgd1z64kw1svm5w831q0xd6glqhah86qc8";
+  };
+
+  disabled = isPyPy;
+  doCheck = false; # doesn't find needed test data files
+  preBuild = ''
+    export BOOST_PYTHON_LIB="boost_python${"${lib.versions.major python.version}${lib.versions.minor python.version}"}"
+    export BOOST_THREAD_LIB="boost_thread"
+    export BOOST_SYSTEM_LIB="boost_system"
+    export PYCAIRO=true
+  '';
+
+  nativeBuildInputs = [
+    mapnik # for mapnik_config
+    pkg-config
+  ];
+
+  patches = [
+    ./find-pycairo-with-pkg-config.patch
+  ];
+
+  buildInputs = [
+    mapnik
+    boost
+    cairo
+    harfbuzz
+    icu
+    libjpeg
+    libpng
+    libtiff
+    libwebp
+    proj
+    zlib
+  ];
+
+  propagatedBuildInputs = [ pillow pycairo ];
+
+  pythonImportsCheck = [ "mapnik" ];
+
+  meta = with lib; {
+    description = "Python bindings for Mapnik";
+    maintainers = with maintainers; [ erictapen ];
+    homepage = "https://mapnik.org";
+    license = licenses.lgpl21;
+  };
+}