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/compilers/unison/default.nix

@@ -0,0 +1,47 @@
+{ lib, stdenv, fetchurl, autoPatchelfHook
+, ncurses5, zlib, gmp
+, makeWrapper
+, less
+}:
+
+stdenv.mkDerivation rec {
+  pname = "unison-code-manager";
+  milestone_id = "M2l";
+  version = "1.0.${milestone_id}-alpha";
+
+  src = if (stdenv.isDarwin) then
+    fetchurl {
+      url = "https://github.com/unisonweb/unison/releases/download/release/${milestone_id}/ucm-macos.tar.gz";
+      sha256 = "sha256-1jwDICm1tt//92S+ybHhRcNQjeCc5DaM6+RMInLWzFE=";
+    }
+  else
+    fetchurl {
+      url = "https://github.com/unisonweb/unison/releases/download/release/${milestone_id}/ucm-linux.tar.gz";
+      sha256 = "sha256-ECpg6iNxSVkt/VuspFYTdVyUO/+XxGwB1NmgfMOhb5A=";
+    };
+
+  # The tarball is just the prebuilt binary, in the archive root.
+  sourceRoot = ".";
+  dontBuild = true;
+  dontConfigure = true;
+
+  nativeBuildInputs = [ makeWrapper ] ++ (lib.optional (!stdenv.isDarwin) autoPatchelfHook);
+  buildInputs = lib.optionals (!stdenv.isDarwin) [ ncurses5 zlib gmp ];
+
+  installPhase = ''
+    mkdir -p $out/bin
+    mv ucm $out/bin
+    mv ui $out/ui
+    wrapProgram $out/bin/ucm \
+      --prefix PATH ":" "${lib.makeBinPath [ less ]}" \
+      --set UCM_WEB_UI "$out/ui"
+  '';
+
+  meta = with lib; {
+    description = "Modern, statically-typed purely functional language";
+    homepage = "https://unisonweb.org/";
+    license = with licenses; [ mit bsd3 ];
+    maintainers = [ maintainers.virusdave ];
+    platforms = [ "x86_64-darwin" "x86_64-linux" "aarch64-darwin" ];
+  };
+}