AC_CHECK_FUNCS(poll select listen bind shutdown close connect setsockopt)
AC_CHECK_FUNCS(setrlimit time ctime utime gettimeofday getrusage)
AC_CHECK_FUNCS(chmod fcntl stat fstat getenv putenv strerror)
AC_CHECK_FUNCS(poll select listen bind shutdown close connect setsockopt)
AC_CHECK_FUNCS(setrlimit time ctime utime gettimeofday getrusage)
AC_CHECK_FUNCS(chmod fcntl stat fstat getenv putenv strerror)