# File ext/nokogiri/extconf.rb, line 76 def nokogiri_find_header header_file, *paths message = checking_message(header_file, paths) header = cpp_include header_file checking_for message do found = false paths.each do |dir| if File.exists?(File.join(dir, header_file)) opt = "-I#{dir}".quote if try_cpp header, opt unless CUSTOM_DASH_I.include? dir $INCFLAGS = "#{opt} #{$INCFLAGS}" CUSTOM_DASH_I << dir end found = dir break end end end found ||= try_cpp(header) end end