# File lib/rake/application.rb, line 580
580:     def rakefile_location backtrace = caller
581:       backtrace.map { |t| t[/([^:]+):/,1] }
582: 
583:       re = /^#{@rakefile}$/
584:       re = /#{re.source}/i if windows?
585: 
586:       backtrace.find { |str| str =~ re } || ''
587:     end