On C:\cygwin\usr\include\net there is only one file if.h. But many project need route.h. How can I get this header file? -- Best Regards Jiangzhou zjiang@photonicbridges.com -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/