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/tools/graphics/xcolor/default.nix

@@ -0,0 +1,47 @@
+{ lib, rustPlatform, fetchFromGitHub, pkg-config, libX11, libXcursor
+, libxcb, python3, installShellFiles, makeDesktopItem, copyDesktopItems }:
+
+rustPlatform.buildRustPackage rec {
+  pname = "xcolor";
+  version = "0.5.1";
+
+  src = fetchFromGitHub {
+    owner = "Soft";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-NfmoBZek4hsga6RflE5EKkWarhCFIcTwEXhg2fpkxNE=";
+  };
+
+  cargoSha256 = "sha256-Zh73+FJ63SkusSavCqSCLbHVnU++4ZFSMFUIM7TnOj0=";
+
+  nativeBuildInputs = [ pkg-config python3 installShellFiles copyDesktopItems ];
+
+  buildInputs = [ libX11 libXcursor libxcb ];
+
+  desktopItems = [
+    (makeDesktopItem {
+      name = "XColor";
+      exec = "xcolor -s";
+      desktopName = "XColor";
+      comment = "Select colors visible anywhere on the screen to get their RGB representation";
+      icon = "xcolor";
+      categories = [ "Graphics" ];
+    })
+  ];
+
+  postInstall = ''
+    mkdir -p $out/share/applications
+
+    installManPage man/xcolor.1
+    for x in 16 24 32 48 256 512; do
+        install -D -m644 extra/icons/xcolor-''${x}.png $out/share/icons/hicolor/''${x}x''${x}/apps/xcolor.png
+    done
+  '';
+
+  meta = with lib; {
+    description = "Lightweight color picker for X11";
+    homepage = "https://github.com/Soft/xcolor";
+    maintainers = with lib.maintainers; [ fortuneteller2k ];
+    license = licenses.mit;
+  };
+}