You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: xvid.rb
    path of file: ./repos/homebrew-core/Formula/x
    
    the code of the file until where you have to start completion: class Xvid < Formula
  desc "High-performance, high-quality MPEG-4 video library"
  homepage "https://labs.xvid
    
  def install
    cd "build/generic" do
      system "./configure", "--disable-assembly", "--prefix=#{prefix}"
      ENV.deparallelize # Work around error: install: mkdir =build: File exists
      system "make"
      system "make", "install"
    end
  end