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/elixir/generic-builder.nix

@@ -0,0 +1,79 @@
+{ pkgs
+, lib
+, stdenv
+, fetchFromGitHub
+, erlang
+, makeWrapper
+, coreutils
+, curl
+, bash
+, debugInfo ? false
+}:
+
+{ baseName ? "elixir"
+, version
+, minimumOTPVersion
+, sha256 ? null
+, rev ? "v${version}"
+, src ? fetchFromGitHub { inherit rev sha256; owner = "elixir-lang"; repo = "elixir"; }
+} @ args:
+
+let
+  inherit (lib) getVersion versionAtLeast optional;
+
+in
+assert versionAtLeast (getVersion erlang) minimumOTPVersion;
+
+stdenv.mkDerivation ({
+  pname = "${baseName}";
+
+  inherit src version debugInfo;
+
+  nativeBuildInputs = [ makeWrapper ];
+  buildInputs = [ erlang ];
+
+  LANG = "C.UTF-8";
+  LC_TYPE = "C.UTF-8";
+
+  buildFlags = optional debugInfo "ERL_COMPILER_OPTIONS=debug_info";
+
+  preBuild = ''
+    patchShebangs lib/elixir/generate_app.escript || true
+
+    substituteInPlace Makefile \
+      --replace "/usr/local" $out
+  '';
+
+  postFixup = ''
+    # Elixir binaries are shell scripts which run erl. Add some stuff
+    # to PATH so the scripts can run without problems.
+
+    for f in $out/bin/*; do
+     b=$(basename $f)
+      if [ "$b" = mix ]; then continue; fi
+      wrapProgram $f \
+        --prefix PATH ":" "${lib.makeBinPath [ erlang coreutils curl bash ]}"
+    done
+
+    substituteInPlace $out/bin/mix \
+          --replace "/usr/bin/env elixir" "${coreutils}/bin/env elixir"
+  '';
+
+  pos = builtins.unsafeGetAttrPos "sha256" args;
+  meta = with lib; {
+    homepage = "https://elixir-lang.org/";
+    description = "A functional, meta-programming aware language built on top of the Erlang VM";
+
+    longDescription = ''
+      Elixir is a functional, meta-programming aware language built on
+      top of the Erlang VM. It is a dynamic language with flexible
+      syntax and macro support that leverages Erlang's abilities to
+      build concurrent, distributed and fault-tolerant applications
+      with hot code upgrades.
+    '';
+
+    license = licenses.epl10;
+    platforms = platforms.unix;
+    maintainers = teams.beam.members;
+  };
+})