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/virtualization/docker-slim/default.nix

@@ -0,0 +1,40 @@
+{ lib, buildGoModule, fetchFromGitHub, makeWrapper }:
+
+buildGoModule rec {
+  pname = "docker-slim";
+  version = "1.37.6";
+
+  src = fetchFromGitHub {
+    owner = "docker-slim";
+    repo = "docker-slim";
+    rev = version;
+    sha256 = "sha256-Jzi6JC6DRklZhNqmFx6eHx6qR8/fb/JuSpgwtPThcc4=";
+  };
+
+  vendorSha256 = null;
+
+  subPackages = [ "cmd/docker-slim" "cmd/docker-slim-sensor" ];
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  ldflags = [
+    "-s"
+    "-w"
+    "-X github.com/docker-slim/docker-slim/pkg/version.appVersionTag=${version}"
+    "-X github.com/docker-slim/docker-slim/pkg/version.appVersionRev=${src.rev}"
+  ];
+
+  # docker-slim tries to create its state dir next to the binary (inside the nix
+  # store), so we set it to use the working directory at the time of invocation
+  postInstall = ''
+    wrapProgram "$out/bin/docker-slim" --add-flags '--state-path "$(pwd)"'
+  '';
+
+  meta = with lib; {
+    description = "Minify and secure Docker containers";
+    homepage = "https://dockersl.im/";
+    changelog = "https://github.com/docker-slim/docker-slim/raw/${version}/CHANGELOG.md";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ Br1ght0ne marsam mbrgm ];
+  };
+}