# File lib/rake/application.rb, line 176
176:     def have_rakefile
177:       @rakefiles.each do |fn|
178:         if File.exist?(fn)
179:           others = Dir.glob(fn, File::FNM_CASEFOLD)
180:           return others.size == 1 ? others.first : fn
181:         elsif fn == ''
182:           return fn
183:         end
184:       end
185:       return nil
186:     end