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/interpreters/rakudo/zef.nix

@@ -0,0 +1,35 @@
+{ lib, stdenv, fetchFromGitHub, rakudo, makeWrapper }:
+
+stdenv.mkDerivation rec {
+  pname = "zef";
+  version = "0.13.7";
+
+  src = fetchFromGitHub {
+    owner = "ugexe";
+    repo = "zef";
+    rev = "v${version}";
+    sha256 = "sha256-FEQwe9MkP+tFZgXiR3hrNS+Jyavj85oYql3uOLP3nwc=";
+  };
+
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ rakudo ];
+
+  installPhase = ''
+    mkdir -p "$out"
+    # TODO: Find better solution. zef stores cache stuff in $HOME with the
+    # default config.
+    env HOME=$TMPDIR ${rakudo}/bin/raku -I. ./bin/zef --/depends --/test-depends --/build-depends --install-to=$out install .
+  '';
+
+  postFixup =''
+    wrapProgram $out/bin/zef --prefix RAKUDOLIB , "inst#$out"
+  '';
+
+  meta = with lib; {
+    description = "Raku / Perl6 Module Management";
+    homepage    = "https://github.com/ugexe/zef";
+    license     = licenses.artistic2;
+    platforms   = platforms.unix;
+    maintainers = with maintainers; [ sgo ];
+  };
+}