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/applications/editors/retext/default.nix

@@ -0,0 +1,70 @@
+{ lib
+, python3
+, fetchFromGitHub
+, wrapQtAppsHook
+, buildEnv
+, aspellDicts
+  # Use `lib.collect lib.isDerivation aspellDicts;` to make all dictionaries
+  # available.
+, enchantAspellDicts ? with aspellDicts; [ en en-computers en-science ]
+}:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "retext";
+  version = "7.2.3";
+  format = "setuptools";
+
+  src = fetchFromGitHub {
+    owner = "retext-project";
+    repo = "retext";
+    rev = version;
+    hash = "sha256-EwaJFODnkZGbqVw1oQrTrx2ME4vRttVW4CMPkWvMtHA=";
+  };
+
+  nativeBuildInputs = [
+    wrapQtAppsHook
+  ];
+
+  propagatedBuildInputs = with python3.pkgs; [
+    chardet
+    docutils
+    markdown
+    markups
+    pyenchant
+    pygments
+    pyqt5
+  ];
+
+  postPatch = ''
+    # Remove wheel check
+    sed -i -e '31,36d' setup.py
+  '';
+
+  postInstall = ''
+    makeWrapperArgs+=("''${qtWrapperArgs[@]}")
+    makeWrapperArgs+=(
+      "--set" "ASPELL_CONF" "dict-dir ${buildEnv {
+        name = "aspell-all-dicts";
+        paths = map (path: "${path}/lib/aspell") enchantAspellDicts;
+      }}"
+    )
+
+    substituteInPlace $out/share/applications/me.mitya57.ReText.desktop \
+      --replace "Exec=ReText-${version}.data/scripts/retext %F" "Exec=$out/bin/retext %F" \
+      --replace "Icon=ReText-${version}.data/data/share/retext/icons/retext.svg" "Icon=$out/share/retext/icons/retext.svg"
+  '';
+
+  doCheck = false;
+
+  pythonImportsCheck = [
+    "ReText"
+  ];
+
+  meta = with lib; {
+    description = "Editor for Markdown and reStructuredText";
+    homepage = "https://github.com/retext-project/retext/";
+    license = licenses.gpl2Plus;
+    maintainers = with maintainers; [ klntsky ];
+    platforms = platforms.unix;
+  };
+}