# File lib/rake/application.rb, line 586
586:     def rakefile_location backtrace = caller
587:       backtrace.map { |t| t[/([^:]+):/,1] }
588: 
589:       re = /^#{@rakefile}$/
590:       re = /#{re.source}/i if windows?
591: 
592:       backtrace.find { |str| str =~ re } || ''
593:     end