cmake EVENT__HAVE_SETFD examples

GreatSQL/GreatSQL extra/libevent/libevent-2.1.11-stable/CMakeLists.txt :626 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

percona/percona-server extra/libevent/libevent-2.1.11-stable/CMakeLists.txt :634 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

facebook/mysql-5.6 extra/libevent/libevent-2.1.11-stable/CMakeLists.txt :626 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

dogecoinfoundation/libdogecoin src/libevent/CMakeLists.txt :584 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

nmathewson/libevent_obsolete CMakeLists.txt :470 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

polardb/polardbx-engine extra/libevent/libevent-2.1.11-stable/CMakeLists.txt :626 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

fluffos/fluffos src/thirdparty/libevent/CMakeLists.txt :669 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

CTSRD-CHERI/cheribsd contrib/libevent/CMakeLists.txt :584 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

CTSRD-CHERI/cheribsd contrib/ntp/sntp/libevent/CMakeLists.txt :584 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

fluent/fluent-bit lib/monkey/mk_core/deps/libevent/CMakeLists.txt :419 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)

percona/percona-xtradb-cluster extra/libevent/libevent-2.1.11-stable/CMakeLists.txt :626 

CHECK_SYMBOL_EXISTS(F_SETFD fcntl.h EVENT__HAVE_SETFD)