Gem::Ext::Builder.run

# File tmp/rubies/ruby-4.0.0/lib/rubygems/ext/builder.rb, line 88
def self.run(command, results, command_name = nil, dir = Dir.pwd, env = {})
  verbose = Gem.configuration.really_verbose

  begin
    rubygems_gemdeps = ENV["RUBYGEMS_GEMDEPS"]
    ENV["RUBYGEMS_GEMDEPS"] = nil
    if verbose
      puts("current directory: #{dir}")
      p(command)
    end
    results << "current directory: #{dir}"
    results << shelljoin(command)

    require "open3"
    # Set $SOURCE_DATE_EPOCH for the subprocess.
    build_env = { "SOURCE_DATE_EPOCH" => Gem.source_date_epoch_string }.merge(env)
    output, status = begin
                       Open3.popen2e(build_env, *command, chdir: dir) do |_stdin, stdouterr, wait_thread|
                         output = String.new
                         while line = stdouterr.gets
                           output << line
                           if verbose
                             print line
                           end
                         end
                         [output, wait_thread.value]
                       end
                     rescue StandardError => error
                       raise Gem::InstallError, "#{command_name || class_name} failed#{error.message}"
                     end
    unless verbose
      results << output
    end
  ensure
    ENV["RUBYGEMS_GEMDEPS"] = rubygems_gemdeps
  end

  unless status.success?
    results << "Building has failed. See above output for more information on the failure." if verbose
  end

  yield(status, results) if block_given?

  unless status.success?
    exit_reason =
      if status.exited?
        ", exit code #{status.exitstatus}"
      elsif status.signaled?
        ", uncaught signal #{status.termsig}"
      end

    raise Gem::InstallError, "#{command_name || class_name} failed#{exit_reason}"
  end
end