make && make install
cd /root/php-5.2.14/libevent && make libevent.a
make[1]: Entering directory `/root/php-5.2.14/libevent'
cd /root/php-5.2.14/libevent && /bin/sh /root/php-5.2.14/libevent/missing --run autoconf
FATAL ERROR: Autoconf version 2.58 or higher is required for this script
make[1]: *** [/root/php-5.2.14/libevent/configure] Error 1
make[1]: Leaving directory `/root/php-5.2.14/libevent'
make: *** [/root/php-5.2.14/libevent/libevent.a] Error 2