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/bs-platform/build-bs-platform.nix

@@ -0,0 +1,65 @@
+# This file is based on https://github.com/turboMaCk/bs-platform.nix/blob/master/build-bs-platform.nix
+# to make potential future updates simpler
+
+{ lib, stdenv, fetchFromGitHub, ninja, runCommand, nodejs, python3,
+  ocaml-version, version, src,
+  patches ? [],
+  ocaml ? (import ./ocaml.nix {
+    version = ocaml-version;
+    inherit lib stdenv;
+    src = "${src}/ocaml";
+  }),
+  custom-ninja ? (ninja.overrideAttrs (attrs: {
+    src = runCommand "ninja-patched-source" {} ''
+      mkdir -p $out
+      tar zxvf ${src}/vendor/ninja.tar.gz -C $out
+    '';
+    patches = [];
+  }))
+}:
+
+let
+  bin_folder = if stdenv.isDarwin then "darwin" else "linux";
+in
+
+stdenv.mkDerivation rec {
+  inherit src version patches;
+  pname = "bs-platform";
+
+  BS_RELEASE_BUILD = "true";
+
+  # BuckleScript's idiosyncratic build process only builds artifacts required
+  # for editor-tooling to work when this environment variable is set:
+  # https://github.com/BuckleScript/bucklescript/blob/7.2.0/scripts/install.js#L225-L227
+  BS_TRAVIS_CI = "1";
+
+  buildInputs = [ nodejs python3 custom-ninja ];
+
+  prePatch = ''
+    sed -i 's:./configure.py --bootstrap:python3 ./configure.py --bootstrap:' ./scripts/install.js
+    mkdir -p ./native/${ocaml-version}/bin
+    ln -sf ${ocaml}/bin/*  ./native/${ocaml-version}/bin
+  '';
+
+  # avoid building the development version, will break aarch64 build
+  dontConfigure = true;
+
+  buildPhase = ''
+    # This is an unfortunate name, but it's actually how to build a release
+    # binary for BuckleScript
+    npm run postinstall
+  '';
+
+  installPhase = ''
+    mkdir -p $out/bin
+    cp -rf jscomp lib ${bin_folder} vendor odoc_gen native bsb bsc bsrefmt $out
+    mkdir -p $out/lib/ocaml
+    cp jscomp/runtime/js.* jscomp/runtime/*.cm* $out/lib/ocaml
+    cp jscomp/others/*.ml jscomp/others/*.mli jscomp/others/*.cm* $out/lib/ocaml
+    cp jscomp/stdlib-406/*.ml jscomp/stdlib-406/*.mli jscomp/stdlib-406/*.cm* $out/lib/ocaml
+    cp bsconfig.json package.json $out
+    ln -s $out/bsb $out/bin/bsb
+    ln -s $out/bsc $out/bin/bsc
+    ln -s $out/bsrefmt $out/bin/bsrefmt
+  '';
+}