[root@vps9732 node]# ./configure
Checking for program g++ or c++          : /usr/bin/g++
Checking for program cpp                 : /usr/bin/cpp
Checking for program ar                  : /usr/bin/ar
Checking for program ranlib              : /usr/bin/ranlib
Checking for g++                         : ok
Checking for program gcc or cc           : /usr/bin/gcc
Checking for program ar                  : /usr/bin/ar
Checking for program ranlib              : /usr/bin/ranlib
Checking for gcc                         : ok
Checking for library dl                  : yes
Checking for openssl                     : yes
Checking for library util                : yes
Checking for library rt                  : yes
--- libeio ---
Checking for library pthread             : yes
Checking for function pthread_create     : yes
Checking for function pthread_atfork     : yes
Checking for futimes(2)                  : yes
Checking for readahead(2)                : yes
Checking for fdatasync(2)                : yes
Checking for pread(2) and pwrite(2)      : yes
Checking for sendfile(2)                 : yes
Checking for sync_file_range(2)          : no
--- libev ---
Checking for header sys/inotify.h        : yes
Checking for function inotify_init       : yes
Checking for header sys/epoll.h          : yes
Checking for function epoll_ctl          : yes
Checking for header port.h               : not found
Checking for header poll.h               : yes
Checking for function poll               : yes
Checking for header ['sys/types.h', 'sys/event.h'] : not found
Checking for header sys/queue.h                    : yes
Checking for function kqueue                       : not found
Checking for header sys/select.h                   : yes
Checking for function select                       : yes
Checking for header sys/eventfd.h                  : not found
Checking for SYS_clock_gettime                     : yes
Checking for library rt                            : yes
Checking for function clock_gettime                : yes
Checking for function nanosleep                    : yes
Checking for function ceil                         : yes
Checking for fdatasync(2) with c++                 : yes
'configure' finished successfully (2.573s)