# File lib/rubygems/require_paths_builder.rb, line 5
 5:   def write_require_paths_file_if_needed(spec = @spec, gem_home = @gem_home)
 6:     return if spec.require_paths == ["lib"] &&
 7:               (spec.bindir.nil? || spec.bindir == "bin")
 8:     file_name = File.join(gem_home, 'gems', "#{@spec.full_name}", ".require_paths")
 9:     file_name.untaint
10:     File.open(file_name, "w") do |file|
11:       spec.require_paths.each do |path|
12:         file.puts path
13:       end
14:       file.puts spec.bindir if spec.bindir
15:     end
16:   end