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/package-management/nix-serve/default.nix

@@ -0,0 +1,52 @@
+{ lib
+, stdenv
+, fetchFromGitHub
+, bzip2
+, nix
+, perl
+, makeWrapper
+, nixosTests
+}:
+
+with lib;
+
+let
+  rev = "e4675e38ab54942e351c7686e40fabec822120b9";
+  sha256 = "1wm24p6pkxl1d7hrvf4ph6mwzawvqi22c60z9xzndn5xfyr4v0yr";
+in
+
+stdenv.mkDerivation {
+  pname = "nix-serve";
+  version = "0.2-${substring 0 7 rev}";
+
+  src = fetchFromGitHub {
+    owner = "edolstra";
+    repo = "nix-serve";
+    inherit rev sha256;
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+
+  dontBuild = true;
+
+  installPhase = ''
+    install -Dm0755 nix-serve.psgi $out/libexec/nix-serve/nix-serve.psgi
+
+    makeWrapper ${perl.withPackages(p: [ p.DBDSQLite p.Plack p.Starman nix.perl-bindings ])}/bin/starman $out/bin/nix-serve \
+                --prefix PATH : "${makeBinPath [ bzip2 nix ]}" \
+                --add-flags $out/libexec/nix-serve/nix-serve.psgi
+  '';
+
+  passthru.tests = {
+    nix-serve = nixosTests.nix-serve;
+    nix-serve-ssh = nixosTests.nix-serve-ssh;
+  };
+
+  meta = {
+    homepage = "https://github.com/edolstra/nix-serve";
+    description = "A utility for sharing a Nix store as a binary cache";
+    maintainers = [ maintainers.eelco ];
+    license = licenses.lgpl21;
+    platforms = nix.meta.platforms;
+  };
+}