module Excon

def display_warning(warning)
  # Show warning if $VERBOSE or ENV['EXCON_DEBUG'] is set
  if $VERBOSE || ENV['EXCON_DEBUG']
    $stderr.puts "[excon][WARNING] #{warning}\n#{ caller.join("\n") }"
  end
  if @raise_on_warnings
    raise Error::Warning.new(warning)
  end
end