require 'formula'

class Pngrewrite <Formula
  url 'http://entropymine.com/jason/pngrewrite/pngrewrite-1.3.0.zip'
  homepage 'http://entropymine.com/jason/pngrewrite/'
  md5 '37216932d12bf9b47dca1f45724080d6'

  def install
    ENV.libpng
    
    system "#{ENV.cc} #{ENV['CFLAGS']} #{ENV['CPPFLAGS']} " +
           "-o pngrewrite pngrewrite.c " +
           "#{ENV['LDFLAGS']} -lpng"
    bin.install 'pngrewrite'
  end
end