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/version-management/git-and-tools/git-cinnabar/default.nix

@@ -0,0 +1,54 @@
+{ stdenv, lib, fetchFromGitHub, autoconf, makeWrapper
+, curl, libiconv, mercurial, zlib
+}:
+
+let
+  python3 = mercurial.python;
+in
+
+stdenv.mkDerivation rec {
+  pname = "git-cinnabar";
+  version = "0.5.7";
+
+  src = fetchFromGitHub {
+    owner = "glandium";
+    repo = "git-cinnabar";
+    rev = version;
+    sha256 = "04dsjlsw98avrckldx7rc70b2zsbajzkyqqph4c7d9xd5djh3yaj";
+    fetchSubmodules = true;
+  };
+
+  nativeBuildInputs = [ autoconf makeWrapper ];
+  buildInputs = [ curl zlib ] ++ lib.optional stdenv.isDarwin libiconv;
+
+  # Ignore submodule status failing due to no git in environment.
+  makeFlags = [ "SUBMODULE_STATUS=yes" ];
+
+  enableParallelBuilding = true;
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/bin $out/libexec
+    install git-cinnabar-helper $out/bin
+    install git-cinnabar git-remote-hg $out/libexec
+    cp -r cinnabar mercurial $out/libexec
+
+    for pythonBin in git-cinnabar git-remote-hg; do
+        makeWrapper $out/libexec/$pythonBin $out/bin/$pythonBin \
+            --prefix PATH : ${lib.getBin python3}/bin \
+            --prefix GIT_CINNABAR_EXPERIMENTS , python3 \
+            --set PYTHONPATH ${mercurial}/${python3.sitePackages}
+    done
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/glandium/git-cinnabar";
+    description = "git remote helper to interact with mercurial repositories";
+    license = licenses.gpl2Only;
+    maintainers = with maintainers; [ qyliss ];
+    platforms = platforms.all;
+  };
+}