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/ruby-modules/gem/nix-bundle-install.rb

@@ -0,0 +1,181 @@
+require 'rbconfig'
+require 'bundler/vendored_thor'
+require 'bundler'
+require 'rubygems/command'
+require 'fileutils'
+require 'pathname'
+require 'tmpdir'
+require 'shellwords'
+
+if defined?(Encoding.default_internal)
+  Encoding.default_internal = Encoding::UTF_8
+  Encoding.default_external = Encoding::UTF_8
+end
+
+# Options:
+#
+#   type        - installation type, either "git" or "path"
+#   name        - the gem name
+#   version     - gem version
+#   build-flags - build arguments
+#
+# Git-only options:
+#
+#   uri         - git repo uri
+#   repo        - path to local checkout
+#   ref         - the commit hash
+
+ruby = File.join(ENV["ruby"], "bin", RbConfig::CONFIG['ruby_install_name'])
+out = ENV["out"]
+bin_dir = File.join(ENV["out"], "bin")
+
+type        = ARGV[0]
+name        = ARGV[1]
+version     = ARGV[2]
+build_flags = Shellwords.split(ARGV[3])
+if type == "git"
+  uri         = ARGV[4]
+  REPO        = ARGV[5]
+  ref         = ARGV[6]
+end
+
+# options to pass to bundler
+options = {
+  "name" => name,
+  "version" => version,
+}
+if type == "path"
+  options.merge!({
+    "path" => Dir.pwd,
+  })
+elsif type == "git"
+  options.merge!({
+    "uri"  => uri,
+    "ref"  => ref,
+  })
+end
+
+# Monkey-patch Bundler to use our local checkout.
+# I wish we didn't have to do this, but bundler does not expose an API to do
+# these kinds of things.
+Bundler.module_eval do
+  def self.requires_sudo?
+    false
+  end
+
+  def self.root
+    # we don't have a Gemfile, so it doesn't make sense to try to make paths
+    # relative to the (non existent) parent directory thereof, so we give a
+    # nonsense path here.
+    Pathname.new("/no-root-path")
+  end
+
+  def self.bundle_path
+    Pathname.new(ENV["GEM_HOME"])
+  end
+
+  def self.locked_gems
+    nil
+  end
+end
+
+if type == "git"
+  Bundler::Source::Git.class_eval do
+    def allow_git_ops?
+      true
+    end
+  end
+
+  Bundler::Source::Git::GitProxy.class_eval do
+    def checkout
+      unless path.exist?
+        FileUtils.mkdir_p(path.dirname)
+        FileUtils.cp_r(File.join(REPO, ".git"), path)
+        system("chmod -R +w #{path}")
+      end
+    end
+
+    def copy_to(destination, submodules=false)
+      unless File.exist?(destination.join(".git"))
+        FileUtils.mkdir_p(destination.dirname)
+        FileUtils.cp_r(REPO, destination)
+        system("chmod -R +w #{destination}")
+      end
+    end
+  end
+end
+
+# UI
+verbose = false
+no_color = false
+Bundler.ui = Bundler::UI::Shell.new({"no-color" => no_color})
+Bundler.ui.level = "debug" if verbose
+
+# Install
+if type == "git"
+  source = Bundler::Source::Git.new(options)
+else
+  source = Bundler::Source::Path.new(options)
+end
+spec = source.specs.search_all(name).first
+source.install(spec, :build_args => build_flags)
+
+msg = spec.post_install_message
+if msg
+  Bundler.ui.confirm "Post-install message from #{name}:"
+  Bundler.ui.info msg
+end
+
+# Write out the binstubs
+if spec.executables.any?
+  FileUtils.mkdir_p(bin_dir)
+  spec.executables.each do |exe|
+    wrapper = File.join(bin_dir, exe)
+    File.open(wrapper, "w") do |f|
+      f.write(<<-EOF)
+#!#{ruby}
+#
+# This file was generated by Nix.
+#
+# The application '#{exe}' is installed as part of a gem, and
+# this file is here to facilitate running it.
+#
+
+require 'rubygems'
+require 'bundler/setup'
+
+load Gem.bin_path(#{spec.name.inspect}, #{exe.inspect})
+EOF
+    end
+
+    FileUtils.chmod("+x", wrapper)
+  end
+end
+
+# Write out metadata
+meta = "#{out}/nix-support/gem-meta"
+FileUtils.mkdir_p(meta)
+FileUtils.ln_s(spec.loaded_from.to_s, "#{meta}/spec")
+File.open("#{meta}/name", "w") do |f|
+  f.write spec.name
+end
+if type == "git"
+  File.open("#{meta}/install-path", "w") do |f|
+    f.write source.install_path.to_s
+  end
+end
+File.open("#{meta}/require-paths", "w") do |f|
+  f.write spec.require_paths.join(" ")
+end
+File.open("#{meta}/executables", "w") do |f|
+  f.write spec.executables.join(" ")
+end
+
+# make the lib available during bundler/git installs
+if type == "git"
+  File.open("#{out}/nix-support/setup-hook", "a") do |f|
+    spec.require_paths.each do |dir|
+      f.puts("addToSearchPath RUBYLIB #{source.install_path}/#{dir}")
+    end
+  end
+end