cmake SYSLOG_NG_HAVE_KQUEUE examples

syslog-ng/syslog-ng CMakeLists.txt :367 

check_function_exists(kqueue SYSLOG_NG_HAVE_KQUEUE)

syslog-ng/syslog-ng modules/affile/CMakeLists.txt :60 

elseif(SYSLOG_NG_HAVE_KQUEUE)