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/shells/rc/default.nix

@@ -0,0 +1,45 @@
+{ lib, stdenv, fetchFromGitHub, autoreconfHook, byacc
+, ncurses, readline
+, historySupport ? false, readlineSupport ? true }:
+
+stdenv.mkDerivation rec {
+  pname = "rc";
+  version = "unstable-2021-08-03";
+
+  src = fetchFromGitHub {
+    owner = "rakitzis";
+    repo = "rc";
+    rev = "8ca9ab1305c3e30cd064290081d6e5a1fa841d26";
+    sha256 = "0744ars6y9zzsjr9xazms91qy6bi7msg2gg87526waziahfh4s4z";
+  };
+
+  strictDeps = true;
+  nativeBuildInputs = [ autoreconfHook byacc ];
+
+  # acinclude.m4 wants headers for tgetent().
+  buildInputs = [ ncurses ]
+    ++ lib.optionals readlineSupport [ readline ];
+
+  configureFlags = [
+    "--enable-def-interp=${stdenv.shell}" #183
+    ] ++ lib.optionals historySupport [ "--with-history" ]
+    ++ lib.optionals readlineSupport [ "--with-edit=readline" ];
+
+  #reproducible-build
+  postPatch = ''
+    substituteInPlace configure.ac \
+      --replace "$(git describe || echo '(git description unavailable)')" "${builtins.substring 0 7 src.rev}"
+  '';
+
+  passthru.shellPath = "/bin/rc";
+
+  meta = with lib; {
+    description = "The Plan 9 shell";
+    longDescription = "Byron Rakitzis' UNIX reimplementation of Tom Duff's Plan 9 shell";
+    homepage = "https://web.archive.org/web/20180820053030/tobold.org/article/rc";
+    license = with licenses; zlib;
+    maintainers = with maintainers; [ ramkromberg ];
+    mainProgram = "rc";
+    platforms = with platforms; all;
+  };
+}