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/libraries/nuspell/default.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchFromGitHub, cmake, pkg-config, icu, catch2, pandoc }:
+
+stdenv.mkDerivation rec {
+  pname = "nuspell";
+  version = "5.0.1";
+
+  src = fetchFromGitHub {
+    owner = "nuspell";
+    repo = "nuspell";
+    rev = "v${version}";
+    sha256 = "sha256-ogA7ycqdMUTN/KHV2oZzytnhZ7XVuhx+ArXZqLlmwjk=";
+  };
+
+  nativeBuildInputs = [ cmake pkg-config pandoc ];
+  buildInputs = [ icu ];
+
+  outputs = [ "out" "lib" "dev" "man" ];
+
+  postPatch = ''
+    rm -rf external/Catch2
+    ln -sf ${catch2.src} external/Catch2
+  '';
+
+  postInstall = ''
+    rm -rf $out/share/doc
+  '';
+
+  meta = with lib; {
+    description = "Free and open source C++ spell checking library";
+    homepage = "https://nuspell.github.io/";
+    platforms = platforms.all;
+    maintainers = with maintainers; [ fpletz ];
+    license = licenses.lgpl3Plus;
+  };
+}