cmake EVENT__HAVE_SYS_DEVPOLL_H examples

nmathewson/libevent_obsolete CMakeLists.txt :320 

CHECK_INCLUDE_FILE(sys/devpoll.h EVENT__HAVE_SYS_DEVPOLL_H)

fluent/fluent-bit lib/monkey/mk_core/deps/libevent/CMakeLists.txt :274 

CHECK_INCLUDE_FILE(sys/devpoll.h EVENT__HAVE_SYS_DEVPOLL_H)